BBR VT CONA CMI BT. Internal Post-tensioning System with 02 to 61 Strands. European Technical Approval ETA 09/0286

Transcription

1 BBR VT with 02 to 61 Strands European Tehnial Approval ETA 09/0286

2 0432 BBR VT with 02 to 61 Strands BBR VT International Ltd Bahnstrasse 23, 8603 Shwerzenbah (Switzerland) S P E C I M E N 0432-CPD /1 10 Responsible BBR PT Speialist Company The delivery note aompanying omponents of the BBR VT Post-tensioning System will ontain the CE marking. Company Year PT Speialist Company Assembly and installation of BBR VT tendons must only be arried out by qualified BBR PT Speialist Companies. Find the loal BBR PT Speialist Company by visiting the BBR Network website European Organisation for Tehnial Approvals Europäishe Organisation für Tehnishe Zulassungen Organisation Européenne pour l Agrément tehnique ETAG 013 Guideline for European Tehnial Approval of Post-tensioning Kits for Prestressing of Strutures CWA Requirements for the installation of post-tensioning kits for prestressing of strutures and qualifiation of the speialist ompany and its personnel BBR E-Trae is the trading and quality assurane platform of the BBR Network linking the Holder of Approval, BBR VT International Ltd, BBR PT Speialist Companies and the BBR Manufaturing Plant. Along with the established BBR Fatory Prodution Control, BBR E-Trae provides effetive supply hain management inluding installation, delivery notes and highest quality standards, as well as full traeability of omponents.

3 European tehnial approval Handelsbezeihnung Trade name Zulassungsinhaber Holder of approval Zulassungsgegenstand und Verwendungszwek Generi type and use of onstrution produt Geltungsdauer vom Validity Herstellwerk from bis zum to Manufaturing plant Diese Europäishe tehnishe Zulassung umfasst This European tehnial approval ontains Diese Europäishe tehnishe Zulassung ersetzt English translation, the original version is in German BBR VT Internes Spannverfahren mit 02 bis 61 Litzen BBR VT with 02 to 61 Strands BBR VT International Ltd. Bahnstrasse Shwerzenbah (ZH) Switzerland Litzen-Spannverfahren, intern, im Verbund und ohne Verbund, für das Vorspannen von Tragwerken Post-tensioning kit for internal prestressing of strutures with internal bonded and unbonded strands BBR VT International Ltd. Bahnstrasse Shwerzenbah (ZH) Switzerland 54 Seiten einshließlih 32 Anhängen 54 Pages inluding 32 Annexes mit Geltungsdauer vom bis zum This European tehnial approval replaes

4 Page 2 of European tehnial approval Table of ontents EUROPEAN TECHNICAL APPROVAL... 1 TABLE OF CONTENTS... 2 I LEGAL BASES AND GENERAL CONDITIONS... 5 II SPECIFIC CONDITIONS OF THE EUROPEAN TECHNICAL APPROVAL DEFINITION OF PRODUCT AND INTENDED USE Definition of produt Intended use CHARACTERISTICS OF THE PRODUCT AND METHODS OF VERIFICATION... 7 PT SYSTEM Designation and range of the anhorages and ouplers Designation Anhorage General Restressable and exhangeable tendon Fixed and stressing oupler General Single plane oupler (FK, SK) Sleeve oupler (FH, SH) Movable oupler (BK, BH) Layout of the anhorage reesses Designation and range of the tendons Designation Range n n Duts Use of duts Degree of filling Round steel strip sheaths Flat orrugated steel duts Pre-bent smooth round steel duts Plasti sheaths Minimum radii of urvature Support of tendons Frition losses Slip at anhorages and ouplers Conrete strength at time of stressing Centre spaing and edge distane of anhorages COMPONENTS Strands Anhorages and ouplers Anhor heads Bearing trumplates Trumpets Coupler anhor heads K, H Ring wedges Helix and additional reinforement Protetion aps... 15

5 Page 3 of European tehnial approval Material properties Permanent orrosion protetion Dangerous substanes Methods of verifiation Identifiation EVALUATION OF CONFORMITY AND CE MARKING Attestation of onformity system Responsibilities Tasks for the manufaturer fatory prodution ontrol Tasks of the approved body Initial type-testing of the produts Initial inspetion of fatory and of fatory prodution ontrol Continuous surveillane Audit testing of samples taken at the fatory CE marking ASSUMPTIONS UNDER WHICH THE FITNESS OF THE PRODUCT FOR THE INTENDED USE WAS FAVOURABLY ASSESSED Manufaturing Design General Anhorage reess Reinforement in the anhorage zone Fatigue resistane Tendons in masonry strutures load transfer to the struture Maximum prestressing fore Installation Stressing operation Restressing Exhanging tendons Filling material General Grout Grease and wax Cirulating dry air Reordings Welding RECOMMENDATIONS FOR THE MANUFACTURER Reommendations for paking, transport and storage Reommendations on installation Aompanying information ANNEXES ANNEX 1 OVERVIEW ON ANCHORAGES AND COUPLERS ANNEX 2 ANCHOR HEADS ANNEX 3 COUPLERS K AND TRUMPETS TYPE K ANNEX 4 H COUPLERS ANNEX 5 BEARING TRUMPLATES AND TRUMPETS TYPE A ANNEX 6 WEDGES AND ACCESSORIES... 28

6 Page 4 of European tehnial approval ANNEX 7 TENDON RANGES FOR CONA CMI N ANNEX 8 TENDON RANGES FOR CONA CMI N ANNEX 9 MINIMUM RADIUS OF CURVATURE OF FLAT DUCT ANNEX 10 MINIMUM RADIUS OF CURVATURE OF ROUND DUCT FOR P R, MAX = 200 KN/M ANNEX 11 MINIMUM RADIUS OF CURVATURE OF ROUND DUCT FOR P R, MAX = 140 KN/M ANNEX 12 MINIMUM WALL THICKNESS OF STEEL AND PLASTIC DUCT ANNEX 13 MINIMUM CENTRE SPACING ANNEX 14 MINIMUM EDGE DISTANCE ANNEX 15 MATERIAL CHARACTERISTICS ANNEX 16 CONTENTS OF THE PRESCRIBED TEST PLAN ANNEX 17 AUDIT TESTING ANNEX 18 MAXIMUM PRESTRESSING AND OVERSTRESSING FORCES ANNEX 19 CONSTRUCTION STAGES ANNEX 20 MINIMUM CONCRETE STRENGTH HELIX ADDITIONAL REINFORCEMENT CENTRE SPACING AND EDGE DISTANCE ANNEX 21 MINIMUM CONCRETE STRENGTH HELIX ADDITIONAL REINFORCEMENT CENTRE SPACING AND EDGE DISTANCE ANNEX 22 MINIMUM CONCRETE STRENGTH HELIX ADDITIONAL REINFORCEMENT CENTRE SPACING AND EDGE DISTANCE ANNEX 23 MINIMUM CONCRETE STRENGTH HELIX ADDITIONAL REINFORCEMENT CENTRE SPACING AND EDGE DISTANCE ANNEX 24 MINIMUM CONCRETE STRENGTH HELIX ADDITIONAL REINFORCEMENT CENTRE SPACING AND EDGE DISTANCE ANNEX 25 MINIMUM CONCRETE STRENGTH HELIX ADDITIONAL REINFORCEMENT CENTRE SPACING AND EDGE DISTANCE ANNEX 26 MINIMUM CONCRETE STRENGTH HELIX ADDITIONAL REINFORCEMENT CENTRE SPACING AND EDGE DISTANCE ANNEX 27 MINIMUM CONCRETE STRENGTH HELIX ADDITIONAL REINFORCEMENT CENTRE SPACING AND EDGE DISTANCE ANNEX 28 MODIFICATION OF CENTRE SPACING AND EDGE DISTANCE ANNEX 29 DESCRIPTION OF INSTALLATION ANNEX 30 DESCRIPTION OF INSTALLATION ANNEX 31 STRAND SPECIFICATIONS ANNEX 32 REFERENCE DOCUMENTS... 54

7 Page 5 of European tehnial approval I LEGAL BASES AND GENERAL CONDITIONS 1 This European tehnial approval is issued by Österreihishes Institut für Bautehnik in aordane with: 1. Counil Diretive 89/106/EEC of 21 Deember 1988 on the approximation of laws, regulations and administrative provisions of Member States relating to onstrution produts 1 Constrution Produts Diretive (CPD), amended by the Counil Diretive 93/68/EEC of 22 July , and Regulation (EC) 1882/2003 of the European Parliament and of the Counil of 29 September ; 2. dem Salzburger Bauproduktegesetz, LGBl. Nr. 11/1995, in der Fassung LGBl. Nr. 47/1995, LGBl. Nr. 63/1995, LGBl. Nr. 123/1995, LGBl. Nr. 46/2001, LGBl. Nr. 73/2001, LGBl. Nr. 99/2001 und LGBl. Nr. 20/2010; the Salzburg Constrution Produt Regulation LGBl. 11/1995, amended by LGBl. 47/1995, LGBl. 63/1995, LGBl. 123/1995, LGBl. 46/2001, LGBl. 73/2001, LGBl. 99/2001, and LGBl. 20/2010; 3. Common Proedural Rules for Requesting, Preparing and the Granting of European tehnial approvals set out in the Annex of Commission Deision 94/23/EC 4 ; 4. Guideline for European tehnial approval of Post-Tensioning Kits for Prestressing of Strutures, ETAG 013, Edition June Österreihishes Institut für Bautehnik is authorised to hek whether the provisions of this European tehnial approval are met. Cheking may take plae in the manufaturing plant. Nevertheless, the responsibility for the onformity of the produts to the European tehnial approval and for their fitness for the intended use remains with the holder of the European tehnial approval. 3 This European tehnial approval is not to be transferred to manufaturers or agents of manufaturers other than those indiated on Page 1, or manufaturing plants other than those indiated on Page 1 of this European tehnial approval. 4 This European tehnial approval may be withdrawn by Österreihishes Institut für Bautehnik, in partiular pursuant to information by the Commission aording to Artile 5 (1) of Counil Diretive 89/106/EEC. 5 Reprodution of this European tehnial approval inluding transmission by eletroni means shall be in full. However, partial reprodution may be made with the written onsent of Österreihishes Institut für Bautehnik. In this ase partial reprodution has to be designated as suh. Texts and drawings of advertising brohures shall not ontradit or misuse the European tehnial approval. 6 The European tehnial approval is issued by the Approval Body in its offiial language. This version orresponds to the version irulated within EOTA. Translations into other languages have to be designated as suh. 1 Offiial Journal of the European Communities L 40, , page 12 2 Offiial Journal of the European Communities L 220, , page 1 3 Offiial Journal of the European Union L 284, , page 1 4 Offiial Journal of the European Communities L 17, , page 34

8 Page 6 of European tehnial approval II SPECIFIC CONDITIONS OF THE EUROPEAN TECHNICAL APPROVAL 1 Definition of produt and intended use 1.1 Definition of produt The European tehnial approval 5 (ETA) applies to a kit, the PT system BBR VT with 02 to 61 Strands, omprising the following omponents: Tendon Internal tendons with 02 to 61 tensile elements. Tensile element 7-wire prestressing steel strand with nominal diameter and maximum harateristi tensile strength as given in Table 1. Nominal diameter Table 1: Tensile elements Nominal rosssetional area Maximum harateristi tensile strength mm mm 2 MPa NOTE 1 MPa = 1 N/mm 2 Anhorage and oupler Anhorage of the strands with ring wedges; End anhorage Fixed (passive) anhor or stressing (ative) anhor as end anhorage for 02, 03, 04, 05, 06, 07, 08, 09, 12, 13, 15, 16, 19, 22, 24, 25, 27, 31, 37, 42, 43, 48, 55 and 61 strands; Fixed or stressing oupler Single plane oupler for 02, 03, 04, 05, 06, 07, 08, 09, 12, 13, 15, 16, 19, 22, 24, 25, 27, and 31 strands; Sleeve oupler for 02, 03, 04, 05, 06, 07, 08, 09, 12, 13, 15, 16, 19, 22, 24, 25, 27, 31, 37, 42, 43, 48, 55 and 61 strands; Movable oupler Single plane oupler for 02, 03, 04, 05, 06, 07, 08, 09, 12, 13, 15, 16, 19, 22, 24, 25, 27, and 31 strands; Sleeve oupler for 02, 03, 04, 05, 06, 07, 08, 09, 12, 13, 15, 16, 19, 22, 24, 25, 27, 31, 37, 42, 43, 48, 55 and 61 strands; Bearing trumplate for 02, 03, 04, 05, 06, 07, 08, 09, 12, 13, 15, 16, 19, 22, 24, 25, 27, 31, 37, 42, 43, 48, 55 and 61 strands; 5 The European tehnial approval was firstly issued in 2010 with validity from , amended in 2010 with validity from and extended in 2013 with validity from to

9 Page 7 of European tehnial approval Helix and additional reinforement in the region of the anhorage; Corrosion protetion for tensile elements, ouplers and anhorages. 1.2 Intended use The PT system is intended to be used for the prestressing of strutures. Use ategories aording to type of tendon and material of struture: Internal bonded tendon for normal weight onrete in onrete and omposite strutures Internal unbonded tendon for normal weight onrete in onrete and omposite strutures For speial strutures aording to Euroode 2, Euroode 4 and Euroode 6 Optional use ategories: Restressable tendons Exhangeable tendons Tendon for ryogeni appliations with anhorages not exposed to ryogeni onditions The provisions made in the European tehnial approval are based on an assumed intended working life of the PT system of 100 years. The indiations given on the working life of the PT system annot be interpreted as a guarantee given by the manufaturer or the Approval Body, but are to be regarded only as a means for seleting the appropriate produt in relation to the expeted, eonomially reasonable working life of the onstrution works. 2 Charateristis of the produt and methods of verifiation PT system 2.1 Designation and range of the anhorages and ouplers End anhorages an be used as fixed or stressing anhors. Couplers are fixed, stressing or movable. The prinipal dimensions of anhorages and ouplers are given in the Annexes 2 to 6 and 20 to Designation End anhorage e.g. S A Fixed (F) or stressing (S) Anhorage Designation of the tendon with information on number, ross-setional area and harateristi tensile strength of the strands Coupler, e.g. F K Fixed (F), stressing (S) or movable (B) Coupler anhor head (K or H) Designation of the tendon with information on number, ross-setional area and harateristi tensile strength of the strands

10 Page 8 of European tehnial approval Anhorage General The anhor heads of the fixed and stressing anhorages are idential. A differentiation is needed for the onstrution works. The wedges of inaessible fixed anhors shall be seured with springs and/or a wedge retaining plate. An alternative is pre-loking eah individual strand with ~ 0.5 F pk and applying a wedge retaining plate. Where F pk... Charateristi value of maximum fore of single strand Restressable and exhangeable tendon Signifiant to a restressable and exhangeable tendon is the exess length of the strands. The extent of the exess length depends on the jak used for restressing or releasing. The protrusions of the strands require a permanent orrosion protetion and an adapted ap Fixed and stressing oupler General The prestressing fore at the seond onstrution stage may not be greater than that at the first onstrution stage, neither during onstrution, nor in the final state, nor due to any load ombination Single plane oupler (FK, SK) The oupling is ahieved by means of a oupler anhor head K. The strands of the first onstrution stage are anhored by means of wedges in mahined ones, drilled in parallel. The arrangement of the ones of the first onstrution stage is idential to that of the anhor heads of the fixed and stressing anhorages. The strands of the seond onstrution stage are anhored in a irle around the ones of the first onstrution stage by means of wedges in mahined ones, drilled at an inlination of 7. The wedges for the seond onstrution stage are seured by means of holding springs and a over plate Sleeve oupler (FH, SH) The oupler anhor heads H are of the same basi geometry as the anhor heads of the fixed and stressing anhors. Compared to the anhor heads of the fixed and stressing anhors, the oupler anhor heads H are higher and provide an external thread for the oupler sleeve. The onnetion between the oupler anhor heads H of the first and seond onstrution stages is ahieved by means of a oupler sleeve Movable oupler (BK, BH) The movable oupler is either a single plane oupler or a sleeve oupler in a oupler sheathing made of steel or plasti. Length and position of the oupler sheathing shall be for the expeted strain displaement, see Clause 4.3. The oupler anhor heads and the oupler sleeves of the movable ouplers are idential to the oupler anhor heads and the oupler sleeves of the fixed and stressing ouplers. A 100 mm long and at least 3.5 mm thik PE-HD insert shall be installed at the deviating point at the end of the trumpet. The insert is not required for plasti trumpets where the duts are slipped over the plasti trumpet Layout of the anhorage reesses All anhor heads have to be plaed perpendiular to the axis of the tendon, see Annex 19. The dimensions of the anhorage reesses shall be adapted to the prestressing jaks used. The ETA holder shall save for referene information on the minimum dimensions of the anhorage

11 Page 9 of European tehnial approval reesses. The formwork for the anhorage reesses should be slightly onial for ease of removal. In ase of internal anhorages fully embedded in onrete, the reesses shall be designed so as to permit a reinfored onrete over with the required dimensions and in any ase with a thikness of at least 20 mm. In ase of exposed anhorages, onrete over of the anhorage and bearing trumplate is not required. However, the exposed surfae of the bearing trumplate and the ap shall be provided with a orrosion protetion. 2.2 Designation and range of the tendons Designation Tendon, e.g Internal PT Number of strands (02 to 61) Type of strand Cross-setional area of strands (140 or 150 mm 2 ) Charateristi tensile strength of strands The tendons omprise 02 to 61 tensile elements, 7-wire prestressing steel strands aording to Annex Range Prestressing and overstressing fores are given in the orresponding standards and regulations in fore at the plae of use. The maximum prestressing and overstressing fores are listed in Annex 18. The tendons onsist of 02, 03, 04, 05, 06, 07, 08, 09, 12, 13, 15, 16, 19, 22, 24, 25, 27, 31, 37, 42, 43, 48, 55 or 61 strands. By omitting strands in the anhorages and ouplers in a radially symmetrially way, also tendons with numbers of strands lying between the numbers given above an be installed. Any unneessary hole shall either remain undrilled or shall be provided with a short piee of strand and a wedge shall be inserted. For oupler anhor head K the ones of the outer pith irle, seond onstrution stage, may be equally redistributed if strands are omitted. However, the overall dimensions of the oupler anhor head K shall remain unhanged. With regard to dimensions and reinforement, anhorages and ouplers with omitted strands shall remain unhanged ompared to anhorages and ouplers with a full number of strands n wire prestressing steel strand Nominal diameter mm Nominal ross-setional area mm 2 Tendon ranges see Annex n wire prestressing steel strand Nominal diameter mm Nominal ross-setional area mm 2 Tendon ranges see Annex 8.

12 Page 10 of European tehnial approval 2.3 Duts Use of duts For bonded tendons orrugated duts, either in steel or plasti, shall be used. For speial appliation, suh as loop tendons and unbonded tendons, smooth duts an be used Degree of filling The degree of filling, f, for round duts shall generally be between 0.35 and However, the smaller values of degree of filling, 0.35 to 0.40, shall be used for long tendons or if the tensile elements are installed after onreting. The minimum radius of urvature an be defined with the equation given in Clause 2.4. Typial degrees of filling, f, and orresponding minimum radii of urvature, R min, are given in Annexes 9 to 11. The degree of filling is defined as f = ross-setional area of prestressing steel ross-setional area of inner diameter of sheath Round steel strip sheaths Steel strip sheath in onformity with EN shall be used. For diameters exeeding EN 523 the requirements shall be met analogous. The degree of filling, f, shall be aording to Clause and the minimum radius of urvature to Clause 2.4. Annexes 10 and 11 give internal dut diameters and minimum radii of urvature in whih p R, max has been set to 200 kn/m and 140 kn/m respetively. Smaller radii of urvature are aeptable aording to the respetive standards and regulations in fore at the plae of use Flat orrugated steel duts For tendons with 2, 3, 4 and 5 strands flat duts may be used, whereas EN 523 applies aordingly. Inner dimensions of the dut and the minimum radii of urvature are defined in Annex 9. Annex 9 gives minor and major internal flat dut diameters and minimum radii of urvature, both minor and major, in whih p R, max has been set to 200 kn/m and 140 kn/m respetively. Smaller radii of urvature are aeptable aording to the respetive standards and regulations in fore at the plae of use Pre-bent smooth round steel duts If permitted at the plae of use, smooth steel duts aording to EN 10255, EN , EN , EN or EN an be used. The degree of filling, f, shall onform to Clause and the minimum radius of urvature to Clause 2.4. The duts shall be pre-bent and free of any kinks. The minimum wall thikness of the steel duts shall meet the requirements of Annex Plasti sheaths Corrugated plasti sheaths made of HDPE or PP onforming to ETAG 013, Annex C.3 shall be used. Alternatively smooth plasti duts aording to EN may be used if permitted at the plae of use. The degree of filling, f, shall onform to Clause and the minimum radius of urvature to Clause 2.4. Annex 12 gives dut diameters, and minimum wall thiknesses for orrugated and smooth plasti duts aording to Clause 2.4. Other internal diameters, wall thiknesses or materials are aeptable aording to the respetive standards and regulations in fore at the plae of use. 6 Standards and other douments referred to in the European tehnial approval are listed in Annex 32.

13 Page 11 of European tehnial approval 2.4 Minimum radii of urvature The minimum radii of urvature, R min, given in Annexes 9 to 11 orrespond to a prestressing fore of the tendon of 0.85 F p0.1 a nominal diameter of the strand of d = 15.7 mm a pressure under the prestressing strands of p R, max = 200 kn/m and 140 kn/m a onrete ompressive strength of f m, 0, ube = 23 MPa. In ase of different tendon parameters or a different pressure under the prestressing strands, the alulation of the minimum radius of urvature of the tendon an be arried out using the equation R min = 2 F pm, 0 d d i p R, max Where 2.0 m R min... m...minimum radius of urvature F pm, 0...kN...Prestressing fore of the tendon d... m...diameter of the prestressing steel d i... m...inner dut diameter p R, max...kn/m...pressure under the prestressing strands For tendons with predominantly stati loading, redued minimum radii of urvature an be used. Reommended values for the pressure under the prestressing strands are p R, max = kn/m for internal bonded tendons p R, max = 800 kn/m for smooth steel dut and predominantly stati loading In ase of redued minimum radius of urvature, the degree of filling, f, as defined in Clause 2.3.2, shall be between 0.25 and 0.30 to allow for proper tendon installation. Depending on the onrete strength at the time of stressing, additional reinforement for splitting fores may be required in the areas of redued minimum radius of urvature. Standards and regulations on minimum radius of urvature or on the pressure under the prestressing strands in fore at the plae of use shall be observed. 2.5 Support of tendons Spaing of supports is between 1.0 and 1.8 m. In the region of maximum tendon urvature a spaing of 0.8 m shall be applied and 0.6 m in ase the minimum radius of urvature is smaller than 4.0 m. The tendons shall be systematially fixed in their position so that they are not displaed by plaing and ompating of onrete. 2.6 Frition losses For the alulation of loss of prestressing fore due to frition Coulomb s law applies. The alulation of the frition losses is arried out using the equation - µ (α + k x) F x = F 0 e Where F x...kn...prestressing fore at a distane x along the tendon F 0...kN...Prestressing fore at x = 0 m

14 Page 12 of European tehnial approval µ... rad -1...Frition oeffiient, see Table 2 α... rad...sum of the angular displaements over distane x, irrespetive of diretion or sign k... rad/m...wobble oeffiient, see Table 2 x... m...distane along the tendon from the point where prestressing fore is equal to F 0 Type of dut NOTE 1 1 rad = 1 m/m = 1 NOTE 2 As far as aeptable at the plae of use, due to speial measures like oiling or for a tendon layout with only few deviations the frition oeffiient an be redued by 10 to 20 %. Compared to e.g. the use of prestressing steel or sheaths with a film of rust this value inreases by more than 100 %. Table 2: Frition parameters Reommended values Range of values µ k µ k rad -1 rad/m rad -1 rad/m Steel strip dut Smooth steel dut Corrugated plasti dut Smooth plasti dut 0.12 Where Tendon Table 3: Frition losses in anhorages Frition loss 0206 to to 0906 F s % to to F s...frition loss in anhorages and first onstrution stage of stressing ouplers. The loss shall be taken into aount for determination of elongation and the prestressing fore along the tendon. 2.7 Slip at anhorages and ouplers Slip at fixed and stressing anhorages and at fixed and stressing ouplers, first and seond onstrution stages, is 6 mm. Slip at movable ouplers is twie this amount. At the stressing anhorage and at the first onstrution stage of the stressing ouplers the slip is 4 mm, provided a prestressing jak with a wedging system and a wedging fore of around 25 kn per strand is used.

15 Page 13 of European tehnial approval 2.8 Conrete strength at time of stressing Conrete in onformity with EN shall be used. At the time of stressing the mean onrete ompressive strength, f m, 0, shall be at least the value given in Table 4. The onrete test speimen shall be subjeted to the same uring onditions as the struture. For partial prestressing with 30 % of the full prestressing fore the atual mean value of the onrete ompressive strength shall be at least 0.5 f m, 0, ube or 0.5 f m, 0, ylinder. Intermediate values may be interpolated linearly aording to EN The helix, additional reinforement, entre spaing and edge distane orresponding to the onrete ompressive strengths shall be taken from Annexes 20 to 27, see also Clauses and Table 4: Compressive strength of onrete Mean onrete strength f m, 0 Cube strength, f m, 0, ube 150 mm ube Cylinder strength, f m, 0, ylinder 150 mm ylinder diameter 2.9 Centre spaing and edge distane of anhorages MPa MPa In general, spaing and distanes shall not be less than the values given in Annexes 20 to 27. However, a redution of up to 15 % of the entre spaing of tendon anhorages in one diretion is permitted, but should not be less than the outside diameter of the helix and the plaing of additional reinforement shall still be possible, see Annex 28. In this ase the spaing in the perpendiular diretion shall be inreased by the same perentage. The orresponding edge distane is alulated by a e = a 2 b e = b 2 Where 10 mm + 10 mm + a...mm...centre spaing b...mm...centre spaing in the diretion perpendiular to a a e...mm...edge distane b e...mm...edge distane in the diretion perpendiular to a e...mm...conrete over Standards and regulations on onrete over in fore at the plae of use shall be observed. The minimum values for a, b, a e and b e are given in Annexes 20 to 27, where f m, 0, ube Mean onrete ompressive strength at time of stressing in MPa, determined at ubes, 150 mm

16 Page 14 of European tehnial approval f m, 0, ylinder Mean onrete ompressive strength at time of stressing in MPa, determined at ylinders, diameter 150 mm...conrete over in mm Components 2.10 Strands Only 7-wire prestressing steel strands with harateristis aording to Table 5 shall be used, see also Annex 31. Table 5: Prestressing steel strands Maximum harateristi tensile strength 1) f pk MPa Nominal diameter d mm Nominal ross-setional area A p mm Mass of prestressing steel m kg/m ) Prestressing steel strands with a harateristi tensile strength below MPa may also be used. In a single tendon only strands spun in the same diretion shall be used Anhorages and ouplers The omponents of anhorages and ouplers shall onform to the speifiations given in Annexes 2 to 6 and the tehnial doumentation 7. Therein the omponent dimensions, materials and material identifiation data with toleranes are given Anhor heads The anhor heads are made of steel and ontain regularly arranged onial holes drilled in parallel to aommodate prestressing steel strands and wedges. The bak exits of the bore holes are provided with bell mouth openings or plasti ring ushions. In addition, threaded bores may be provided to fix protetion aps and wedge retaining plates. At the bak of the anhor head there may be a step, for ease of entring the anhor head on the bearing trumplate Bearing trumplates The bearing trumplates made of ast iron transmit the fore via three anhorage planes to the onrete. Air-vents are situated at the top and at the interfae plane to the anhor head. A ventilation tube an be fitted to these air-vents. On the tendon-side end there is an inner thread to aommodate the trumpet Trumpets The onial trumpets are made either in steel or in PE. The trumpets manufatured in steel have a orrugated or plain surfae. In ase the transition from the trumpet to the dut is made in steel, a 100 mm long and at least 3.5 mm thik PE-HD insert shall be installed at the deviating point of the strands. 7 The tehnial doumentation of the European tehnial approval is deposited at Österreihishes Institut für Bautehnik and, in so far as is relevant to the tasks of the approved body involved in the attestation of onformity proedure, is handed over to the approved body.

17 Page 15 of European tehnial approval The onial trumpets made of PE may have either a orrugated or a plain surfae. At the dutside end there is a radius for the deviation of the strands and a smooth surfae, to ensure a good transition to the dut. The opposite end is onneted to the bearing trumplate Coupler anhor heads K, H The oupler anhor heads K for the single plane ouplers are made of steel and provide in the inner part, for anhorage of the strands of the first onstrution stage, the same arrangement of holes as the anhor head for the stressing or fixed anhors. In the outer pith irle there is an arrangement of holes with an inlination of 7 to aommodate the strands of the seond onstrution stage. Wedge retaining plates and over plates are fixed by means of additional threaded bores. The oupler anhor heads H for the sleeve oupler are made of steel and have the same basi geometry as the anhor heads of the stressing or fixed anhors. Compared to the anhor heads of the fixed and stressing anhors, the oupler anhor heads H are higher and provide an external thread for the oupler sleeve. At the bak of the oupler anhor heads K and H there is a step for ease of entring the oupler anhor head on the bearing trumplate. The oupler sleeve is a steel tube with an inner thread and is provided with ventilation holes. Ring ushions shall be inserted in oupler anhor head H Ring wedges The ring wedges are in three piees, whih are held together by spring rings. Two types of ring wedges are used. Within one anhorage or oupler only one type of ring wedge shall be used. The wedges of inaessible fixed anhors shall be seured with springs and/or a wedge retaining plate. An alternative is pre-loking eah individual strand with ~ 0.5 F pk and applying a wedge retaining plate as per Clause Helix and additional reinforement The helix and the additional reinforement are made of ribbed reinforing steel. The end of the helix on the anhorage side is welded to the following turn. The helix shall be plaed in the tendon axis. The dimensions of the helix and the additional reinforement shall onform to the values speified in Annexes 20 to 27, see also Clause If required for a speifi projet design, the reinforement given in Annexes 20 to 27 may be modified in aordane with the respetive regulations in fore at the plae of use as well as with the relevant approval of the loal authorities and of the ETA holder to provided equivalent performane Protetion aps Protetion aps are made of steel or plasti. They are provided with air vents and fixed with srews or threaded rods Material properties Information on the materials used for the omponents are given in Annex Permanent orrosion protetion To protet the tendons from orrosion, the duts, ouplers and anhorages have to be ompletely filled with grout aording to EN 447, speial grout aording to ETAG 013, grease aording ETAG 013, Annex C.4.1, wax aording to ETAG 013, Annex C.4.2 or irulating dry air as appliable at the plae of use.

18 Page 16 of European tehnial approval Alternative grease or wax may be used if aording to the standards and regulations in fore at the plae of use. With exposed anhorages, not fully embedded in onrete, an adequate orrosion protetion for the exposed parts shall be applied Dangerous substanes The release of dangerous substanes is determined aording to ETAG 013, Clause The PT system onforms to the provisions of Guidane Paper H 8 relating to dangerous substanes. A delaration in this respet has been made by the manufaturer. In addition to the speifi lauses relating to dangerous substanes in the European tehnial approval, there may be other requirements appliable to the produt falling within their sope (e.g. transposed European legislation and national laws, regulations and administrative provisions). In order to meet the provisions of the Constrution Produts Diretive, these requirements also need to be omplied with, when and where they apply Methods of verifiation The assessment of the fitness of the "BBR VT with 02 to 61 Strands" for its intended use in relation to the requirements for mehanial resistane and stability in the sense of Essential Requirement 1 of the Counil Diretive 89/106/EEC has been made in onformity to the Guideline for European tehnial approvals of "Post-Tensioning Kits for Prestressing of Strutures", ETAG 013, Edition June Identifiation The European tehnial approval for the "BBR VT Internal Post-tensioning System with 02 to 61 Strands" is issued on the basis of agreed data, deposited at Österreihishes Institut für Bautehnik, whih identifies the BBR VT Posttensioning System that has been assessed and judged. Changes to the manufaturing proess of the BBR VT Post-tensioning System, whih ould result in this deposited data being inorret, should be notified to Österreihishes Institut für Bautehnik before the hanges are introdued. Österreihishes Institut für Bautehnik will deide whether or not suh hanges affet the European tehnial approval and onsequently the validity of the CE marking on the basis of the European tehnial approval and, if so, whether further assessment or alterations to the European tehnial approval are onsidered neessary. 3 Evaluation of onformity and CE marking 3.1 Attestation of onformity system The system of attestation of onformity assigned by the European Commission to this produt in aordane with the Counil Diretive 89/106/EWG of 21 Deember 1988, Annex III, Setion 2, Clause i), referred to as System 1+, provides for Certifiation of the onformity of the produt by an approved ertifiation body on the basis of (a) Tasks for the manufaturer (1) Fatory prodution ontrol; 8 Guidane Paper H: A harmonised approah relating to dangerous substanes under the Constrution Produts Diretive, Rev. September 2002.

19 Page 17 of European tehnial approval (2) Further testing of samples taken at the fatory by the manufaturer in aordane with a presribed test plan 9 ; (b) Tasks for the approved body (3) Initial type-testing of the produt; (4) Initial inspetion of fatory and of fatory prodution ontrol; (5) Continuous surveillane, assessment and approval of the fatory prodution ontrol; (6) Audit testing of samples taken at the fatory. 3.2 Responsibilities Tasks for the manufaturer fatory prodution ontrol At the manufaturing plant, the manufaturer shall implement and ontinuously maintain a fatory prodution ontrol system. All the elements, requirements and provisions adopted by the manufaturer shall be doumented systematially in the form of written operating and proessing instrutions. The fatory prodution ontrol system shall ensure that the produt is in onformity with the European tehnial approval. Within the framework of fatory prodution ontrol, the manufaturer shall arry out tests and ontrols in aordane with the presribed test plan and in aordane with the European tehnial approval. Details of the extent, nature and frequeny of testing and ontrols to be performed within the framework of the fatory prodution ontrol shall orrespond to the presribed test plan, whih forms part of the tehnial doumentation of the European tehnial approval. The results of fatory prodution ontrol shall be reorded and evaluated. The reords shall inlude at a minimum the following information. Designation of the produts and the basi materials; Type of hek or testing; Date of manufature of the produts and date of testing of the produts or basi materials or omponents; Results of hek and testing and, if appropriate, omparison with requirements; Name and signature of the person responsible for the fatory prodution ontrol. The reords of fatory prodution ontrol shall be submitted to the approved body and shall be filed for at least 10 years time. On request, the reords shall be presented to Österreihishes Institut für Bautehnik. If test results are unsatisfatory, the manufaturer shall immediately implement measures to eliminate the defets. Constrution produts or omponents whih are not in onformity with the requirements shall be removed. After elimination of the defets, the respetive test if verifiation is required for tehnial reasons shall be repeated immediately. The basi elements of the presribed test plan, see Annex 16, onform to ETAG 013, Annex E.1 and are speified in the quality management plan of the "BBR VT Internal Posttensioning System with 02 to 61 Strands". 9 The presribed test plan has been deposited at Österreihishes Institut für Bautehnik and is handed over only to the approved body involved in the onformity attestation proedure. The presribed test plan is also referred to as ontrol plan.

20 Page 18 of European tehnial approval Tasks of the approved body Initial type-testing of the produts For initial type-testing the results of the tests performed as part of the assessment for the European tehnial approval may be used unless there are hanges in the manufaturing proedure or fatory plant. In suh ases, the neessary initial type-testing shall be agreed between Österreihishes Institut für Bautehnik and the approved body involved Initial inspetion of fatory and of fatory prodution ontrol The approved body shall asertain that, in aordane with the presribed test plan, the manufaturing plant, in partiular personnel and equipment, and the fatory prodution ontrol are suitable to ensure a ontinuous orderly manufaturing of the PT system aording to the speifiations given in Setion II as well as in the Annexes of the European tehnial approval Continuous surveillane The kit manufaturer shall be inspeted at least one a year. Eah omponent manufaturer of the omponents listed in Annex 17 shall be inspeted at least one every five years. It shall be verified that the system of fatory prodution ontrol and the speified manufaturing proess are maintained, taking aount of the presribed test plan. The results of produt ertifiation and ontinuous surveillane shall be made available on demand by the approved body to Österreihishes Institut für Bautehnik. If the provisions of the European tehnial approval and the presribed test plan are no longer fulfilled, the ertifiate of onformity shall be withdrawn and Österreihishes Institut für Bautehnik informed immediately Audit testing of samples taken at the fatory During surveillane inspetion, the approved body shall take samples at the fatory of omponents of the PT system or of individual omponents, for whih the European tehnial approval has been granted, for independent testing. For the most important omponents Annex 17 summarises the minimum proedures that shall be implemented by the approved body. 3.3 CE marking The delivery note of the omponents of the PT system shall ontain the CE marking. The symbol "CE" shall be followed by the identifiation number of the ertifiation body and shall be aompanied by the following information. Name or identifiation mark and address of the manufaturer The last two digits of the year in whih the CE marking was affixed Number of the European tehnial approval Number of the ertifiate of onformity Produt identifiation (trade name) 4 Assumptions under whih the fitness of the produt for the intended use was favourably assessed 4.1 Manufaturing "BBR VT with 02 to 61 Strands" is manufatured in aordane with the provisions of the European tehnial approval. Composition and manufaturing proess are deposited at Österreihishes Institut für Bautehnik.

21 Page 19 of European tehnial approval 4.2 Design General Design of the struture shall permit orret installation and stressing of the tendons. The reinforement in the anhorage zone shall permit orret plaing and ompating of onrete Anhorage reess The dimensions of the anhorage reesses are to be adapted to the prestressing jaks used. The ETA holder shall save for referene information on the minimum dimensions of the anhorage reesses and appropriate learane behind the anhorage. In ase of anhorages fully embedded in onrete, the reesses shall be designed so as to permit a reinfored onrete over with the required dimensions and in any ase with a thikness of at least 20 mm. In ase of exposed anhorages onrete over of the anhorage and bearing trumplate is not required. However, the exposed surfae of the bearing trumplate and the ap shall be provided with a orrosion protetion Reinforement in the anhorage zone Verifiation of the transfer of the prestressing fores to the strutural onrete is not required if the entre spaing and edge distane of the anhorages as well as grade and dimensions of additional reinforement, see Annexes 20 to 27, are onformed to. In the ase of grouped anhorages the additional reinforement of the individual anhorages an be ombined, provided appropriate anhorage is ensured. However, the number, ross setion and position with respet to the bearing trumplates shall remain unhanged. The reinforement of the struture shall not be employed as additional reinforement. Reinforement exeeding the required reinforement of the struture may be used as additional reinforement, if appropriate plaing is possible. The fores outside the area of the additional reinforement shall be verified and, if neessary, dealt with by appropriate reinforement. If required for a speifi projet design, the reinforement given in Annexes 20 to 27 may be modified in aordane with the respetive regulations in fore at the plae of use as well as with the relevant approval of the loal authority and of the ETA holder to provide equivalent performane Fatigue resistane Fatigue resistane of the tendons has been tested with an upper fore of 0.65 F pk and a stress range of 80 MPa up to load yles Tendons in masonry strutures load transfer to the struture Load transfer of prestressing fore from the anhorages to masonry strutures shall be via onrete or steel members designed aording to the European tehnial approval, espeially aording to Clauses 2.8, 2.9, and 4.2.3, or Euroode 3, respetively. The onrete or steel members supporting the anhorages shall have dimensions that permit a fore of 1.1 F pk to be transferred to the masonry. The verifiation shall be performed aording to Euroode 6 as well as to the respetive standards and regulations in fore at the plae of use Maximum prestressing fore Annex 18 lists the maximum prestressing and overstressing fores.

22 Page 20 of European tehnial approval 4.3 Installation Assembly and installation of tendons shall only be arried out by qualified PT speialist ompanies with the required resoures and experiene in the use of multi-strand internal posttensioning systems, see ETAG 013, Annex D.1 and CWA The respetive standards and regulations in fore at the plae of use shall be onsidered. The ompany s PT site manager shall have a ertifiate, stating that she or he has been trained by the ETA holder and that she or he possesses the neessary qualifiations and experiene with the "BBR VT with 02 to 61 Strands". The tendons may be manufatured on site or in the fatory (prefabriated tendons). To avoid onfusion on eah site only strands with one nominal diameter shall be used. Bearing trumplate, anhor head and oupler anhor head shall be plaed perpendiular to the tendon s axis. Couplers shall be situated in a straight tendon setion. At the anhorages and ouplers the tendon layout shall provide a straight setion over a length of at least 250 mm beyond the end of the trumpet. Before plaing the onrete a final hek of the installed tendons has to be arried out. In the ase of the single plane oupler K the prestressing steel strands shall be provided with markers to be able to hek the depth of engagement. In the ase of a movable oupler it shall be ensured by means of the orresponding position and length of the oupler sheath, that in the area of the oupler sheath and orresponding trumpet area a displaement of the movable oupler of at least 1.15 l + 30 mm is possible without any hindrane, where l is the maximum expeted displaement of the oupler at stressing. 4.4 Stressing operation With a mean onrete ompressive strength in the anhorage zone aording to the values laid down in Annexes 20 to 27 full prestressing may be applied. Stressing and, if appliable, wedging shall be arried out using a suitable prestressing jak. The wedging fore shall orrespond to approximately 25 kn per wedge. After realising the prestressing fore from the prestressing jak, the tendon length redues by the amount of slip at the anhor head. Elongation and prestressing fores shall be heked ontinuously during the stressing operation. The results of the prestressing operation shall be reorded and the measured elongations shall be ompared with the prior alulated values. Information on the prestressing equipment has been submitted to Österreihishes Institut für Bautehnik. The ETA holder shall save for referene information on the prestressing jaks and the appropriate learane behind the anhorage. The safety-at-work and health protetion regulations shall be omplied with. 4.5 Restressing Restressing of tendons in ombination with release and reuse of wedges is permitted, whereby the wedges shall bite into at least 15 mm of virgin strand surfae and no wedge bites shall remain inside the final length of the tendon between anhorages. For tendons remaining restressable throughout the working life of the struture, wax or grease shall be used as filling material or irulating dry air shall be used as orrosion protetion.

23 Page 21 of European tehnial approval Moreover, a strand protrusion at the stressing anhor has to remain with a length ompatible with the prestressing jak used. 4.6 Exhanging tendons Exhange of tendons is permitted. The speifiations for the exhangeable tendons shall be defined during the design phase. Exhangeable tendons are unbonded. For exhangeable tendons, wax or grease shall be used as filling material or irulating dry air shall be used as orrosion protetion. Moreover, a strand protrusion has to remain at the stressing anhor with a length allowing safe release of the omplete prestressing fore. Stressing and fixed anhorages shall be aessible and adequate spae has to be provided behind the anhorages. 4.7 Filling material General Grout Filling operations shall be exeuted aording to the standards and regulations in fore at the plae of use. Grout shall be injeted through the inlet holes until it esapes from the outlet tubes with the same onsisteny. To avoid voids in the hardened grout speial measures shall be applied for long tendons, tendon paths with distint high points or inlined tendons. All vents and grouting inlets shall be sealed immediately after grouting. In ase of ouplers K, the seond stage holes, wedges and springs shall be heked for leanness before and immediately after grouting the first onstrution stage. The standards to be observed for ement grouting in prestressing duts are EN 445, EN 446 and EN 447 or the standards and regulations in fore at the plae of use shall be applied for ready mixed grout Grease and wax The speifiations in ETAG 013, Annex C.4 and the reommendations of the supplier are relevant for grease and wax. The filling proess with grease and wax shall follow a similar proedure as the one speified for the filling with grout. However, a different filling proedure might be possible if permitted at the plae of use Cirulating dry air Atively irulating dry air allows for orrosion protetion of the tendons, provided a permanent monitoring of the drying and irulation system is in plae. This is in general only appliable to strutures of partiular importane. The respetive standards and regulations in fore at the plae of use shall be observed Reordings The results of the filling operation shall be reorded. The respetive standards and regulations in fore at the plae of use shall be observed. 4.8 Welding Duts may be welded. The helix may be welded to the bearing trumplate to seure its position.

24 Page 22 of European tehnial approval After installation of the strands further welding may not be arried out on the tendons. In ase of welding operations near tendons preautionary measures are required to avoid damage. 5 Reommendations for the manufaturer 5.1 Reommendations for paking, transport and storage During transport of prefabriated tendons a minimum diameter of urvature of 1.65 m for tendons up to 1206, 1.80 m for tendons up to 3106, 2.00 m for tendons larger than 3106, shall be observed. The ETA holder shall have instrutions related to Temporary protetion of prestressing steels and omponents in order to prevent orrosion during transportation from the prodution site to the job site; Transportation, storage and handling of the tensile elements and of other omponents in order to avoid any mehanial, hemial or eletrohemial hanges; Protetion of tensile elements and other omponents from moisture; Keeping tensile elements away from areas where welding operations are performed. 5.2 Reommendations on installation The manufaturer s installation instrutions shall be followed, see ETAG 013, Annex D.3. The respetive standards and regulations in fore at the plae of use shall be observed. For the installation see also Annexes 29 and Aompanying information It is the responsibility of the ETA holder to ensure that all neessary information on design and installation is submitted to those responsible for design and exeution of the strutures exeuted with "BBR VT with 02 to 61 Strands". On behalf of Österreihishes Institut für Bautehnik The original doument is signed by: Rainer Mikulits Managing Diretor

25 Page 23 of European tehnial approval Stressing anhorage type SA, aessible fixed anhorage type FA Inaessible fixed anhorage type FA Fixed and stressing oupler type FK, SK Fixed and stressing oupler type FH, SH Movable oupler type BK Movable oupler type BH Restressable / exhangeable anhorage Overview on anhorages and ouplers Annex 1 of European tehnial approval

26 Page 24 of European tehnial approval Anhor head A1-A4 Anhor head A5-A8 Ring ushion Anhor head A5-A8 Cone Dimensions in mm Number of strands Anhor head Nominal diameter Ø A mm Height head A1-A4 mm Height head A5-A8 H A mm Number of strands Anhor head Nominal diameter Ø A mm Height head A1-A4 mm Height head A5-A8 H A mm Anhor heads Annex 2 of European tehnial approval

27 Page 25 of European tehnial approval Cover plate Trumpet type K Coupler head K Number of strands Coupler head K Diameter Ø K mm Height H K mm Cover plate Diameter Ø D mm Thikness D D mm Trumpet type K Diameter Ø TK mm Length L TK mm Number of strands Coupler head K Diameter Ø K mm Height H K mm Cover plate Diameter Ø D mm Thikness D D mm Trumpet type K Diameter Ø TK mm Length L TK mm Couplers K and trumpets type K Annex 3 of European tehnial approval

28 Page 26 of European tehnial approval Coupler anhor head H1 Ring ushion Coupler head H2 Coupler anhor head H2 Coupler sleeve H Dimensions in mm Number of strands Coupler anhor heads H1 and H2 Nominal diameter Ø AH mm Height head H1 mm Height head H2 Coupler sleeve H H AH mm Minimum diameter Ø H mm Length sleeve L H mm Number of strands Coupler anhor heads H1 and H2 Nominal diameter Ø AH mm Height head H1 mm Height head H2 Coupler sleeve H H AH mm Minimum diameter Ø H mm Length sleeve L H mm H ouplers Annex 4 of European tehnial approval

29 Page 27 of European tehnial approval Bearing trumplate Trumpet type A Number of strands Bearing trumplate Diameter Ø P mm Height H P mm Trumpet type A Diameter Ø TA mm Length L TA mm Number of strands Bearing trumplate Diameter Ø P mm Height H P mm Trumpet type A Diameter Ø TA mm Length L TA mm Bearing trumplates and trumpets type A Annex 5 of European tehnial approval

30 Page 28 of European tehnial approval Wedges Tension ring Spring A Spring K Wedge retaining plate KS Dimensions in mm Number of strands Wedge retaining plate KS Diameter Ø KS mm Thikness D KS mm Number of strands Wedge retaining plate KS Diameter Ø KS mm Thikness D KS mm Wedges and aessories Annex 6 of European tehnial approval

31 Page 29 of European tehnial approval n Number of strands Nominal ross-setional area of prestressing steel Nominal mass of prestressing steel Charateristi value of maximum fore of tendon f pk = MPa f pk = MPa n A p M F pk F pk mm 2 kg/m kn kn Tendon ranges for n Annex 7 of European tehnial approval

32 Page 30 of European tehnial approval n Number of strands Nominal ross-setional area of prestressing steel Nominal mass of prestressing steel Charateristi value of maximum fore of tendon f pk = MPa f pk = MPa n A p M F pk F pk mm 2 kg/m kn kn Tendon ranges for n Annex 8 of European tehnial approval

33 Page 31 of European tehnial approval R min, minor d i, minor d i, major Inner dimensions, d i, of flat dut and minimum radius of urvature, R min, for p R, max = 200 kn/m Number of strands Inner dimensions Radius of urvature n d i, major d i, minor R min, major R min, minor mm mm m m Inner dimensions, d i, of flat dut and minimum radius of urvature, R min, for p R, max = 140 kn/m Number of strands Inner dimensions Radius of urvature n d i, major d i, minor R min, major R min, minor mm mm m m Minimum radius of urvature of flat dut R min, major Annex 9 of European tehnial approval

34 Page 32 of European tehnial approval Inner diameter of round dut, d i, and minimum radius of urvature, R min, for p R, max = 200 kn/m Number of strands f 0.35 f 0.40 f 0.45 f 0.50 n d i R min d i R min d i R min d i R min mm m mm m mm m mm m Minimum radius of urvature of round dut for p R, max = 200 kn/m Annex 10 of European tehnial approval

35 Page 33 of European tehnial approval Inner diameter of round dut, d i, and minimum radius of urvature, R min, for p R, max = 140 kn/m Number of strands f 0.35 f 0.40 f 0.45 f 0.50 n d i R min d i R min d i R min d i R min mm m mm m mm m mm m Minimum radius of urvature of round dut for p R, max = 140 kn/m Annex 11 of European tehnial approval

36 Page 34 of European tehnial approval 1) Steel duts, minimum wall thikness, t min Number of strands Plasti duts, minimum wall thikness, t min Number of strands n Corrugated plasti duts up to p R, max = 200 kn/m Wall thikness t min mm Smooth plasti duts up to p R, max = 350 kn/m Internal diameter Wall thikness Outer diameter 1) Internal diameter Wall thikness n d i t min d o d i t min mm mm mm mm mm Not to be applied adjaent to the trumpet at the anhorage or oupler. Minimum wall thikness of steel and plasti dut Annex 12 of European tehnial approval

37 Page 35 of European tehnial approval Minimum entre spaing of tendon anhorages Tendon Minimum entre spaing a = b f m, 0, ube, 150 MPa f m, 0, ylinder, 150 MPa mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm Minimum entre spaing Annex 13 of European tehnial approval

38 Page 36 of European tehnial approval Minimum edge distane of tendon anhorages Tendon Minimum entre spaing a = b f m, 0, ube, 150 MPa f m, 0, ylinder, 150 MPa mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm Conrete over in mm Minimum edge distane Annex 14 of European tehnial approval

39 Page 37 of European tehnial approval Material harateristis Component Anhor head A 0206 to 6106 Coupler anhor head K 0206 to 3106 Coupler anhor head H 0206 to 6106 Bearing trumplate 0206 to 6106 Coupler sleeve H 0206 to 6106 Wedge retaining plate, over plate KS 0206 to 6106 Trumpet Type A, Type K Standard / Speifiation EN EN EN EN EN EN EN 1561 EN 1563 EN EN EN ISO Tension ring B EN Ring wedge Type H Ring wedge Type F Spring Type A, Type K Helix Additional reinforement (stirrups) Sheaths EN EN EN Material harateristis Ribbed reinforing steel R e 500 MPa Ribbed reinforing steel R e 500 MPa EN 523 ETAG 013, Annex C.3 Annex 15 of European tehnial approval

40 Page 38 of European tehnial approval 1) Contents of the presribed test plan Component Bearing trumplate Anhor head and oupler anhor head Ring wedge Coupler sleeve Steel strip sheath Steel dut Strand Item Test / Chek Traeability Minimum frequeny Doumentation Material Chek 100 % "3.1" 1) Detailed dimensions Visual inspetion 3) Test Chek Full 3 % 2 speimens Yes 100 % No Material Chek 100 % "3.1" 1) Detailed dimensions 2) 3), 4) Visual inspetion Chek Test Full 5 % 2 speimens Yes 100 % No Material Chek 100 % "3.1" 1) 5), 6) Treatment, hardness Test Detailed dimensions 2) 3), 7) Visual inspetion Chek Test Full 0.5 % 2 speimens 5 % 2 speimens Yes Yes 100 % No Material Chek 100 % "3.1" 1) Detailed dimensions Visual inspetion 3) Test Chek Full 5 % 2 speimens Yes 100 % No Material Chek 100 % "CE" "CE" Visual inspetion 3) Chek 100 % No Material Chek 100 % "2.2" 8) Bulk Visual inspetion 3) Chek 100 % No Material Chek 100 % "CE" 9) Diameter Test Full Eah oil No Visual inspetion 3) Chek Eah oil No Constituents of filling Cement Chek Full 100 % "CE" 10) material as per EN 447 Admixtures, additions Chek Bulk 100 % "CE" 10) Plasti dut, ETAG 013, Annex C.3 Material Chek Full 100 % "CE" 10) "3.1": Inspetion ertifiate type "3.1" aording to EN ) Other dimensions than 4) 3) Visual inspetions inlude e.g.: Main dimensions, gauge testing, orret marking or labelling, appropriate performane, surfae, fins, kinks, smoothness, orrosion, oating et., as detailed in the presribed test plan. 4) Dimensions: All onial bores of the anhor heads and oupler anhor heads regarding angle, diameter and surfae ondition, thread dimensions of all anhor heads and oupler anhor heads. 5) Geometrial properties 6) Surfae hardness 7) Teeth, one surfae 8) "2.2": Test report "2.2" aording to EN ) If the basis for CE marking of prestressing steel is not available, an approval or ertifiate aording to the respetive standards and regulations in fore at the plae of use shall aompany eah delivery. 10) If the basis for CE marking of onstituents of filling materials and of plasti duts is not available, an approval or ertifiate aording to the respetive standards and regulations in fore at the plae of use shall aompany eah delivery. Full: Full traeability of eah omponent to its raw materials. Bulk: Traeability of eah delivery of omponents to a defined point. Contents of the presribed test plan Annex 16 of European tehnial approval

41 Page 39 of European tehnial approval Audit testing Component Anhor head, Coupler anhor head, Bearing trumplate Ring wedge Coupler sleeve Single tensile element test 1) 2) Item Material aording to speifiation Detailed dimensions Visual inspetion 1) Material aording to speifiation Test / Chek Test / Chek Test Chek Test / Chek Sampling 2) Number of omponents per visit Treatment Test 2 Detailed dimensions Test 1 Main dimensions, surfae hardness and surfae finish 1 2 Test 5 Visual inspetion 1) Chek 5 Material aording to speifiation Detailed dimensions Visual inspetion 1) Single tensile element test aording to ETAG 013, Annex E.3 Test / Chek Test Chek Test 1 1 series Visual inspetion means, e.g.: main dimensions, gauge testing, orret marking or labelling, appropriate performane, surfae, fins, kinks, smoothness, orrosion protetion, orrosion, oating et., as given in the presribed test plan. All samples shall be randomly seleted and learly identified. Audit testing Annex 17 of European tehnial approval

42 Page 40 of European tehnial approval 1) 2) Maximum prestressing and overstressing fores Designation Charateristi tensile strength Maximum prestressing fore 1) 0.9 F p0.1 1), 2) Maximum overstressing fore 0.95 F p0.1 n n n n MPa kn kn kn kn kn kn kn kn n Number of strands The given values are maximum values aording to EN The atual values shall be taken from the standards and regulations in fore at the plae of use. Conformity with the stabilisation and rak width riteria in the load transfer test has been verified to a load level of 0.80 F pk. Overstressing is permitted if the fore in the prestressing jak an be measured to an auray of ± 5 % of the final value of the prestressing fore. Where F pk... Charateristi value of maximum fore of tendon F p Charateristi value of 0.1% proof fore of the tendon Maximum prestressing and overstressing fores Annex 18 of European tehnial approval

43 eletroni opy eletroni opy Reessed stressing anhorage type SA Exposed stressing anhorage type SA Fixed anhorage type FA Fixed and stressing oupler type FK, SK eletroni opy eletroni opy Page 41 of European tehnial approval eletroni opy eletroni opy Fixed and stressing oupler type FH, SH Constrution stages Annex 19 of European tehnial approval

44 Page 42 of European tehnial approval b b e Stressing and fixed anhorage / oupler B B Centre spaing and edge distane b e a e a e a e a e b b e b e a e a e a E F a e = a e + b e = b e + BBR VT Strand arrangement 7-wire prestressing steel strand Nominal diameter 15.7 mm Nominal ross-setional area 150 mm 2 Maximum harateristi tensile strength MPa 1) Tendon Cross-setional area Ap mm Char. value of maximum fore Fpk kn Char. value of 0.1% proof fore Fp0.1 kn Maximum prestressing fore 0.90 Fp0.1 kn Maximum overstressing fore 0.95 Fp0.1 kn Minimum onrete strength Minimum onrete strength / Helix / Additional reinforement / Centre spaing and edge distane Cube fm, 0, ube, 150 MPa Cylinder fm, 0, ylinder, Ø 150 MPa Helix Outer diameter mm Bar diameter mm Length approximately mm Pith mm Number of pithes Distane E mm Additional reinforement Number of stirrups mm Bar diameter mm Spaing mm Distane from anhor plate F mm Minimum outer dimensions B B mm Centre spaing and edge distane Minimum entre spaing a, b mm Minimum edge distane ae, be mm Conrete over 1)... Prestressing steel strand with nominal diameter of 15.3 mm, ross-setional area of 140 mm 2 or with harateristi tensile strength below MPa may also be used. Minimum onrete strength Helix Additional reinforement Centre spaing and edge distane Annex 20 of European tehnial approval

45 Page 43 of European tehnial approval b b e Stressing and fixed anhorage / oupler B B Centre spaing and edge distane b e a e a e a e a e b b e b e a e a e a E F a e = a e + b e = b e + BBR VT Strand arrangement 7-wire prestressing steel strand Nominal diameter 15.7 mm Nominal ross-setional area 150 mm 2 Maximum harateristi tensile strength MPa 1) Tendon Cross-setional area Ap mm Char. value of maximum fore Fpk kn Char. value of 0.1% proof fore Fp0.1 kn Maximum prestressing fore 0.90 Fp0.1 kn Maximum overstressing fore 0.95 Fp0.1 kn Minimum onrete strength Minimum onrete strength / Helix / Additional reinforement / Centre spaing and edge distane Cube fm, 0, ube, 150 MPa Cylinder fm, 0, ylinder, Ø 150 MPa Helix Outer diameter mm Bar diameter mm Length approximately mm Pith mm Number of pithes Distane E mm Additional reinforement Number of stirrups mm Bar diameter 2) mm Spaing mm Distane from anhor plate F mm Minimum outer dimensions B B mm Centre spaing and edge distane Minimum entre spaing a, b mm Minimum edge distane ae, be mm Conrete over 1)... Prestressing steel strand with nominal diameter of 15.3 mm, ross-setional area of 140 mm 2 or with harateristi tensile strength below MPa may also be used. 2)... Bar diameter of 14 mm an be replaed by 16 mm. Minimum onrete strength Helix Additional reinforement Centre spaing and edge distane Annex 21 of European tehnial approval

46 Page 44 of European tehnial approval b b e Stressing and fixed anhorage / oupler B B Centre spaing and edge distane b e a e a e a e a e b b e b e a e a e a E F a e = a e + b e = b e + BBR VT Strand arrangement 7-wire prestressing steel strand Nominal diameter 15.7 mm Nominal ross-setional area 150 mm 2 Maximum harateristi tensile strength MPa 1) Tendon Cross-setional area Ap mm Char. value of maximum fore Fpk kn Char. value of 0.1% proof fore Fp0.1 kn Maximum prestressing fore 0.90 Fp0.1 kn Maximum overstressing fore 0.95 Fp0.1 kn Minimum onrete strength Minimum onrete strength / Helix / Additional reinforement / Centre spaing and edge distane Cube fm, 0, ube, 150 MPa Cylinder fm, 0, ylinder, Ø 150 MPa Helix Outer diameter mm Bar diameter 2) mm Length approximately mm Pith mm Number of pithes Distane E mm Additional reinforement Number of stirrups mm Bar diameter 2) mm Spaing mm Distane from anhor plate F mm Minimum outer dimensions B B mm Centre spaing and edge distane Minimum entre spaing a, b mm Minimum edge distane ae, be mm Conrete over 1)... Prestressing steel strand with nominal diameter of 15.3 mm, ross-setional area of 140 mm 2 or with harateristi tensile strength below MPa may also be used. 2)... Bar diameter of 14 mm an be replaed by 16 mm. Minimum onrete strength Helix Additional reinforement Centre spaing and edge distane Annex 22 of European tehnial approval

47 Page 45 of European tehnial approval b b e Stressing and fixed anhorage / oupler B B Centre spaing and edge distane b e a e a e a e a e b b e b e a e a e a E F a e = a e + b e = b e + BBR VT Strand arrangement 7-wire prestressing steel strand Nominal diameter 15.7 mm Nominal ross-setional area 150 mm 2 Maximum harateristi tensile strength MPa 1) Tendon Cross-setional area Ap mm Char. value of maximum fore Fpk kn Char. value of 0.1% proof fore Fp0.1 kn Maximum prestressing fore 0.90 Fp0.1 kn Maximum overstressing fore 0.95 Fp0.1 kn Minimum onrete strength Minimum onrete strength / Helix / Additional reinforement / Centre spaing and edge distane Cube fm, 0, ube, 150 MPa Cylinder fm, 0, ylinder, Ø 150 MPa Helix Outer diameter mm Bar diameter 2) mm Length approximately mm Pith mm Number of pithes Distane E mm Additional reinforement Number of stirrups mm Bar diameter 2) mm Spaing mm Distane from anhor plate F mm Minimum outer dimensions B B mm Centre spaing and edge distane Minimum entre spaing a, b mm Minimum edge distane ae, be mm Conrete over 1)... Prestressing steel strand with nominal diameter of 15.3 mm, ross-setional area of 140 mm 2 or with harateristi tensile strength below MPa may also be used. 2)... Bar diameter of 14 mm an be replaed by 16 mm. Minimum onrete strength Helix Additional reinforement Centre spaing and edge distane Annex 23 of European tehnial approval

48 Page 46 of European tehnial approval b b e Stressing and fixed anhorage / oupler B B Centre spaing and edge distane b e a e a e a e a e b b e b e a e a e a E F a e = a e + b e = b e + BBR VT Strand arrangement 7-wire prestressing steel strand Nominal diameter 15.7 mm Nominal ross-setional area 150 mm 2 Maximum harateristi tensile strength MPa 1) Tendon Cross-setional area Ap mm Char. value of maximum fore Fpk kn Char. value of 0.1% proof fore Fp0.1 kn Maximum prestressing fore 0.90 Fp0.1 kn Maximum overstressing fore 0.95 Fp0.1 kn Minimum onrete strength Minimum onrete strength / Helix / Additional reinforement / Centre spaing and edge distane Cube fm, 0, ube, 150 MPa Cylinder fm, 0, ylinder, Ø 150 MPa Helix Outer diameter mm Bar diameter 2) mm Length approximately mm Pith mm Number of pithes Distane E mm Additional reinforement Number of stirrups mm Bar diameter mm Spaing mm Distane from anhor plate F mm Minimum outer dimensions B B mm Centre spaing and edge distane Minimum entre spaing a, b mm Minimum edge distane ae, be mm Conrete over 1)... Prestressing steel strand with nominal diameter of 15.3 mm, ross-setional area of 140 mm 2 or with harateristi tensile strength below MPa may also be used. 2)... Bar diameter of 14 mm an be replaed by 16 mm. Minimum onrete strength Helix Additional reinforement Centre spaing and edge distane Annex 24 of European tehnial approval

49 Page 47 of European tehnial approval b b e Stressing and fixed anhorage / oupler B B Centre spaing and edge distane b e a e a e a e a e b b e b e a e a e a E F a e = a e + b e = b e + BBR VT Strand arrangement 7-wire prestressing steel strand Nominal diameter 15.7 mm Nominal ross-setional area 150 mm 2 Maximum harateristi tensile strength MPa 1) Tendon Cross-setional area Ap mm Char. value of maximum fore Fpk kn Char. value of 0.1% proof fore Fp0.1 kn Maximum prestressing fore 0.90 Fp0.1 kn Maximum overstressing fore 0.95 Fp0.1 kn Minimum onrete strength Minimum onrete strength / Helix / Additional reinforement / Centre spaing and edge distane Cube fm, 0, ube, 150 MPa Cylinder fm, 0, ylinder, Ø 150 MPa Helix Outer diameter mm Bar diameter 2) mm Length approximately mm Pith mm Number of pithes Distane E mm Additional reinforement Number of stirrups mm Bar diameter mm Spaing mm Distane from anhor plate F mm Minimum outer dimensions B B mm Centre spaing and edge distane Minimum entre spaing a, b mm Minimum edge distane ae, be mm Conrete over 1)... Prestressing steel strand with nominal diameter of 15.3 mm, ross-setional area of 140 mm 2 or with harateristi tensile strength below MPa may also be used. 2)... Bar diameter of 14 mm an be replaed by 16 mm. Minimum onrete strength Helix Additional reinforement Centre spaing and edge distane Annex 25 of European tehnial approval

50 Page 48 of European tehnial approval b b e Stressing and fixed anhorage / oupler B B Centre spaing and edge distane b e a e a e a e a e b b e b e a e a e a E F a e = a e + b e = b e + BBR VT Strand arrangement 7-wire prestressing steel strand Nominal diameter 15.7 mm Nominal ross-setional area 150 mm 2 Maximum harateristi tensile strength MPa 1) Tendon Cross-setional area Ap mm Char. value of maximum fore Fpk kn Char. value of 0.1% proof fore Fp0.1 kn Maximum prestressing fore 0.90 Fp0.1 kn Maximum overstressing fore 0.95 Fp0.1 kn Minimum onrete strength Minimum onrete strength / Helix / Additional reinforement / Centre spaing and edge distane Cube fm, 0, ube, 150 MPa Cylinder fm, 0, ylinder, Ø 150 MPa Helix Outer diameter mm Bar diameter mm Length approximately mm Pith mm Number of pithes Distane E mm Additional reinforement Number of stirrups mm Bar diameter mm Spaing mm Distane from anhor plate F mm Minimum outer dimensions B B mm Centre spaing and edge distane Minimum entre spaing a, b mm Minimum edge distane ae, be mm Conrete over 1)... Prestressing steel strand with nominal diameter of 15.3 mm, ross-setional area of 140 mm 2 or with harateristi tensile strength below MPa may also be used. Minimum onrete strength Helix Additional reinforement Centre spaing and edge distane Annex 26 of European tehnial approval

51 Page 49 of European tehnial approval b b e Stressing and fixed anhorage / oupler B B Centre spaing and edge distane b e a e a e a e a e b b e b e a e a e a E F a e = a e + b e = b e + BBR VT Strand arrangement 7-wire prestressing steel strand Nominal diameter 15.7 mm Nominal ross-setional area 150 mm 2 Maximum harateristi tensile strength MPa 1) Tendon Cross-setional area Ap mm Char. value of maximum fore Fpk kn Char. value of 0.1% proof fore Fp0.1 kn Maximum prestressing fore 0.90 Fp0.1 kn Maximum overstressing fore 0.95 Fp0.1 kn Minimum onrete strength Minimum onrete strength / Helix / Additional reinforement / Centre spaing and edge distane Cube fm, 0, ube, 150 MPa Cylinder fm, 0, ylinder, Ø 150 MPa Helix Outer diameter mm Bar diameter mm Length approximately mm Pith mm Number of pithes Distane E mm Additional reinforement Number of stirrups mm Bar diameter mm Spaing mm Distane from anhor plate F mm Minimum outer dimensions B B mm Centre spaing and edge distane Minimum entre spaing a, b mm Minimum edge distane ae, be mm Conrete over 1)... Prestressing steel strand with nominal diameter of 15.3 mm, ross-setional area of 140 mm 2 or with harateristi tensile strength below MPa may also be 2) used. Minimum onrete strength Helix Additional reinforement Centre spaing and edge distane Annex 27 of European tehnial approval

52 Page 50 of European tehnial approval Centre spaing and edge distane b b e b e a e a e a e a a = b a e = b e b b e b e a e a a > b a e > b e Modifiation of entre spaing and edge distane shall be in aordane with the Clauses 2.9 and b 0.85 b and Helix, outside diameter 1) a A b A = a b a b Corresponding edge distanes a e = a 2 10 mm + and b e = b 2 10 mm +...Conrete over 1)...Exept the dimensions of helix, the outer dimensions of the additional reinforement shall be adjusted aordingly. Further modifiations of reinforement have to be in aordane with Clause Modifiation of entre spaing and edge distane Annex 28 of European tehnial approval

53 Page 51 of European tehnial approval 1) Preparatory work The omponents of the prestressing kit shall be stored so as to avoid any damage or orrosion. 2) Anhorage reesses Adequate spae to aommodate and to use the prestressing jak shall be ensured (see also Clauses and 4.2.2). 3) Fixing the bearing trumplates Four holes are provided to fix the bearing trumplates to the formwork. The trumpet is srewed into the bearing trumplate. The helix is either welded to the bearing trumplate by means of radial bars (see also Clause 4.8) or positioned by fixing it to the existing reinforement. 4) Plaing of the sheaths The sheaths are plaed on supports with spaing aording to Clause 2.5 and minimum radii of urvature aording to Clause 2.4. The sheaths have to be jointed in a leak-proof way. The sheaths shall be supported suh that any movement is prevented. The same applies for prefabriated tendons. 5) Installation of tensile elements (prestressing steel) The prestressing steel is pushed or pulled into the sheath before or after onreting of the struture. 6) Installation of the inaessible fixed anhorages After passing the strands through the anhor head, they are anhored individually in the ones by means of ring wedges. After assembling the wedges are seured with springs or a wedge retaining plate. An alternative is pre-loking eah individual strand with ~ 0.5 F pk and applying a wedge retaining plate. 7) Installation of fixed oupler anhor head 2.BA The funtion of the fixed oupler is to onnet two tendons, whereas the first tendon is stressed before the seond tendon is installed and stressed. The oupling is ahieved by pushing the strands into the already tensioned oupler anhor head K, side 2.BA (outer pith irle), whereby the strands have to be marked to hek the orret depth of penetration. The oupler anhor head H, 2.BA is assembled with ring wedges and a wedge retaining plate. It is onneted to the already tensioned oupler anhor head H, 1.BA by means of a threaded oupler sleeve. 8) Assembly of movable oupler The movable oupler serves to lengthen unstressed tendons. The axial movement during stressing is ensured by a sheathing box suitable to the expeted elongation at the position of the oupler. The assembly of the oupler anhor head is performed in aordane with Point 7) and Clause The transverse fores at the end of the trumpet are overed by steel defletor rings. 9) Cheking the tendons before onreting Before onreting the struture the fixation and position of the entire tendon have to be heked and orreted if neessary. The sheaths shall be heked for any damage. Desription of installation Annex 29 of European tehnial approval

54 Page 52 of European tehnial approval 10) Assembly of anhor head/oupler anhor head 1.BA After passing the strands through the anhor head, they are anhored individually in the ones by means of ring wedges. The same applies for the oupler anhor head in ase of fixed ouplers in the first onstrution stage. 11) Prestressing At the time of stressing the mean onrete ompressive strength shall be at least aording to Table 4 and the provisions of Clause 2.8. The stressing and possible wedging has to be arried out with a suitable prestressing jak and in aordane with Clause 4.4. The elongation of the tendon and the prestressing fores shall be heked and reorded systematially during the stressing operation. Restressing the tendons is allowed in aordane with Clause ) Grouting the tendons The grout shall be injeted through the inlet holes until it esapes from the outlet tubes with the same onsisteny. All vents and grouting inlets shall be sealed immediately after grouting (see also Clause 4.7). Grease or wax has to be injeted in aordane with ETAG 013 and the reommendations of the supplier. More detailed information on installation an be obtained from the ETA holder. Desription of installation Annex 30 of European tehnial approval

55 Page 53 of European tehnial approval Seven-wire strands aording to pren ) Steel name Y1770S7 Y1860S7 Y1770S7 Y1860S7 Tensile strength R m MPa Diameter d mm Nominal ross-setional area A p mm Nominal mass per metre m kg/m Permitted deviation from nominal mass % ± 2 Charateristi value of maximum fore Maximum value of maximum fore F pk kn F m, max kn Charateristi value of 0.1% proof fore 2) F p0.1 kn Minimum elongation at maximum fore, L mm A gt % 3.5 Modulus of elastiity E p MPa ) 1) 2) 3) Suitable strands aording to standards and regulations valid at the plae of use may also be used. For strands aording to pren , , the value shall be multiplied by Standard value Strand speifiations Annex 31 of European tehnial approval

56 Page 54 of European tehnial approval Referene douments Guideline for European Tehnial Approval ETAG 013, Standards EN 206-1, EN 206-1/A1, EN 206-1/A2, EN 445, EN 446, EN 447, EN 523, EN 1561, EN 1563, EN , EN /AC, EN 1993-series EN 1994-series EN 1996-series EN , EN /AC, EN , EN , EN 10084, EN 10204, EN , EN , EN /A1, EN , EN /A1, Guideline for European Tehnial Approval of Post-Tensioning Kits for Prestressing of Strutures Conrete - Part 1: Speifiation, performane, prodution and onformity Grout for prestressing tendons - Test methods Grout for prestressing tendons - Grouting proedures Grout for prestressing tendons - Basi requirements Steel strip sheaths for prestressing tendons - Terminology, requirements, quality ontrol Founding - Grey ast irons Founding - Spheroidal graphite ast irons Euroode 2: Design of onrete strutures - Part 1-1: General rules and rules for buildings Euroode 3: Design of steel strutures Euroode 4: Design of omposite steel and onrete strutures Euroode 6: Design of masonry strutures Hot rolled produts of strutural steels - Part 2: Tehnial delivery onditions for non-alloy strutural steels Steels for quenhing and tempering - Part 1: General tehnial delivery onditions Steels for quenhing and tempering - Part 2: Tehnial delivery onditions for non alloy steels Case hardening steels - Tehnial delivery onditions Metalli produts - Types of inspetion douments Hot finished strutural hollow setions of non-alloy and fine grain steels - Part 1: Tehnial delivery onditions Seamless steel tubes for pressure purposes - Tehnial delivery onditions - Part 1: Nonalloy steel tubes with speified room temperature properties Welded steel tubes for pressure purposes - Tehnial delivery onditions - Part 1: Non-alloy steel tubes with speified room temperature properties EN , Cold formed welded strutural hollow setions of non-alloy and fine grain steels - Part 1: Tehnial delivery onditions EN A1, EN , EN , EN , EN , EN ISO , pren , pren , CWA 14646, Non-alloy steel tubes suitable for welding and threading - Tehnial delivery onditions Steel wire for mehanial springs - Part 1: Patented old drawn unalloyed steel wire Bright steel produts - Tehnial delivery onditions - Part 2: Steels for general engineering purposes Steel tubes for preision appliations - Tehnial delivery onditions - Part 5: Welded and old sized square and retangular tubes Plasti piping system for water supply - polyethylene (PE) - Part 1: General Plastis - Polyethylene (PE) moulding and extrusion materials - Part 1: Designation system and basis for speifiations Prestressing steels - Part 3: Strand Prestressing steels - Part 3: Strand Requirements for the installation of post-tensioning kits for prestressing of strutures and qualifiation of the speialist ompany and its personnel Referene douments Annex 32 of European tehnial approval

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