ECOJOIST beams. Solives Bodenbalken CERTIFICATE NO. 04/0202

Transcription

1 CI/SfB 23 CERTIFICATE NO. 04/0202 Gang-Nail Systems Ltd, Christy Estate, Ivy Road, Aldershot, Hampshire, GU12 4 XG, England Tel: 0044 (0) Fax: 0044 (0) gangnail@eleco.com Web: ECOJOIST beams Solives Bodenbalken The Irish Agrément Board is designated by Government to issue European Technical Approvals. Irish Agrément Board Certificates establish proof that the certified products are proper materials suitable f their intended use under Irish site conditions, and in accdance with the Building Regulations 1997 to The Irish Agrément Board operates in association with the National Standards Authity of Ireland (NSAI) as the National Member of UEAtc. PRODUCT DESCRIPTION AND USE PRODUCT DESCRIPTION This Certificate relates to ECOJOIST beams. The ECOJOIST beams consist of strength graded parallel timber flanges, connected by engineered V-shaped galvanised steel webs. The webs are fixed to the top and bottom flanges, via integral nail plate zones. The beams are available in six standard sizes. USE The ECOJOIST beams are suitable f use as structural members in flo construction, in domestic, light industrial and commercial buildings, up to and including four steys high. The beams may be used in place of traditional solid timber joists. The ECOJOIST beams are f internal use only. MANUFACTURING AND MARKETING The product is designed by Gang-Nail Systems Ltd, Christy Estate, Ivy Road, Aldershot, Hampshire, GU12 4 XG, England. The webs are manufactured, on behalf of Gang-Nail Systems Ltd, by Speeddeck Building Systems Ltd, Oaksmere Business Park, Yaxley, Eye, Suffolk, IP23 8BW, England ECOJOIST beams are fabricated, under licence in Ireland, by Boyne Roof Trusses, Navan. The product is marketed by Gang-Nail Systems Ltd, Christy Estate, Ivy Road, Aldershot, Hampshire, GU12 4 XG, England. REVISION There has been no revisions to this certificate. Readers are advised to check that this Certificate has not been withdrawn superseded by a later issue by contacting the Irish Agrément Board, NSAI, Glasnevin, Dublin 9 online at

2 Part One / Certification ASSESSMENT In the opinion of the Irish Agrément Board (IAB), ECOJOIST beams, when used as specified in this Irish Agrément Certificate, are satisfacty f the purpose defined above, and meet the requirements of the Building Regulations 1997 to 2002, as indicated in Section 1.2 of this Certificate. 1.2 BUILDING REGULATIONS 1997 to 2002 REQUIREMENTS PART A STRUCTURE A1 Loading ECOJOIST beams when used as certified, have adequate strength and stiffness. See Part 3 of this Certificate. PART B FIRE SAFETY B3 Internal Fire Spread (structure) The fire resistance of flos incpating ECOJOIST beams, varies accding to the type of flo construction. See Part 3 of this Certificate. Cavity barriers may be required, as indicated in Building Regulations 1997 Technical Guidance Document Part B Fire Safety. See Part 4 of this Certificate. PART C SITE PREPARATION AND RESISTANCE TO GROUND MOISTURE C4 Resistance to weather and ground moisture ECOJOIST beams, when used as certified, meet the requirements. PART D MATERIALS AND WORKMANSHIP D1 ECOJOIST beams, when used as certified, meet the requirements f wkmanship. D3 ECOJOIST beams, as certified in this Irish Agrément Board Certificate, are comprised of proper materials, which are fit f their intended use. See Parts 2, 3 and 4 of this Certificate. 2 Certificate No. 04/0202 / Gang-Nail Systems Eco Joists

3 Part Two / Technical Specification and Control Data PRODUCT DESCRIPTION Elements ECOJOIST beams are comprised of steel webs, timber flanges, timber inserts, nail plates and galvanised mild steel nails. Specifications are as follows: a) Steel webs: Webs are punched from Grade DX51D+Z275-N-A-C galvanised steel plate to I.S. EN 10142: 2000 Continuously hot-dip zinc coated low carbon steels sheet and strip f cold fming technical delivery conditions. The process produces integral teeth at the flange locations. Properties and dimensions are given in Tables 1 and 2. Table 1: Web properties Property Hardness Specification B55 min-b61 max to I.S. EN ISO : 2000 Metallic Materials - Rockwell Hardness Test Part 2: Verification and Calibration of Testing Machines Table 2: Web Dimensions Web size Dimension V2 8 V2 10 V2 12 mm mm mm A B C D E F G H No. of nails Top No. of nails Bottom Metal Thickness b) Timber flanges, inserts and strongbacks: Flanges, inserts and strongbacks are cut from European redwood European whitewood, to strength class C24 TR26. The strength properties of C24 and TR 26 are given in BS :2002 Structural use of timber, Code of practice f permissible stress design, materials and wkmanship. Timber shall be visually strength graded to IS 127: 2000 Structural timber - visual strength grading - sawn softwoods with rectangular cross-section machine graded to I.S. EN 519: 1995 Structural Timber - Grading - Requirements F Machine Strength Graded Timber and Grading Machines. Sawn timber is not permitted f use in flanges. F target sizes see Table 3. Table 3: Target Sizes (after regularising*) Depth (mm) Target size* *Target size to I.S. EN 336: 2003 Structural Timber Sizes, Permitted Deviations Tolerance Class 2 (TC2) Width (mm) c) Steel nail plates: Where required, flanges are spliced using Gang-Nail Systems Ltd nail plates (BBA Certificate No: 90/2413 Detail Sheet 5 Gang- Nail 20 Gauge punched metal plate timber fasteners). d) Nails: All fixings are 3.1 mm x 90 mm Ø galvanised mild steel nails to BS 1202: Part Specification f nails. Steel nails. The level of galvanising shall be at least as good as that of the webs punched metal plates. Certificate No. 04/0202 / Gang-Nail Systems Eco Joists 3

4 Table 4: Dimensions and Permissable Spans V mm deep Centres Timber Size Span (mm) x x x x x x V mm deep Centres Timber Size Span (mm) x x x x x x V mm deep Centres Timber Size Span (mm) x x x x x x Notes: 1. Loadings f the above spans are as follows: Top Chd Live: 1500 N/m 2 Top Chd Dead: 200 N/m 2 Bottom Chd Dead: 200 N/m 2 Self-Weight: 100 N/m 2 2. Deflections are limited to x span up to a maximum of 14mm. 3. Beams are simply suppted at each end, with a minimum bearing of 45 mm. 4. Lateral restraint is provided by a suitably fixed flo deck, which will prevent buckling of the compression flange. 5. Loadings are assumed to be effectively transferred into a load sharing system via beams, floing, strongbacks etc. 4 Certificate No. 04/0202 / Gang-Nail Systems Eco Joists

5 2.1.2 ECOJOIST beams a) ECOJOIST beams are available in the widths and depths given in Table 4 Dimensions and Permissible Spans. b) Dimensional tolerances on finished beams are given in Table 5. Table 5 Dimensional Tolerances Beam Dimensional Tolerances Length Width Depth ± 2mm ± 1mm ± 2mm c) Beams lengths are subject to design and transpt limitations. Table 6: Quality control checks Web Manufacture Beam fabrication Chemical composition of raw materials, plate dimensions, galvanising thickness, barcol hardness, visual inspection of finished product. Strength class of timber Strength grading of timber to I.S. 127 I.S. EN 519 Moisture content of timber Dimensions of timber Quality of web/flange connection and nail plate joints, dimensions, visual inspection, markings 2.3 DELIVERY, STORAGE AND MARKING Ancillaries Ancillary components supplied: strongbacks. 2.2 MANUFACTURE Webs The webs are punched from galvanised steel plate using profiled tooling. The flanges are assembled on a jig, in accdance with Gang-Nail Systems Ltd design drawings. The metal webs are then positioned and pressed into the timber using a hydraulic platen press. Where necessary, joints are strengthened by nailing through the webs, at the flange location. Flanges are spliced in accdance with Gang-Nail Systems Ltd design drawings Product Quality Control Gang-Nail Systems are certified to IS EN ISO 9001: 2000 Quality management systems. Requirements, f Manufacture of nail plates, roof truss design, software development, customer services, mechanical engineering service and sales. Quality control checks required include those listed in Table Marking, product identification and delivery a) Each web is marked with the web size i.e. V2-8, V2-10 V2-12. The ECOJOIST beams shall bear the manufacturer s name, product description, IAB identification mark, IAB Certificate number, job reference and beam reference. Instructions f stage and installation are supplied. The upper surface of the beam is marked top at a minimum of two locations, and points of suppt are indicated. b) ECOJOIST beams are delivered to site by the fabricat. They shall be protected from the elements, and incidental damage, during transpt and delivery. Usually the fabricat bears responsibility f joists until they are offloaded at site, whereupon they become the contract s responsibility, unless otherwise specified in the contract Stage ECOJOIST beams shall be sted in well ventilated, level and dry conditions, on timber bearers approximately 75 mm clear of ground and vegetation, and suppted in such a way as to prevent disttion. They should be protected from excessive sun, rain moisture. Site stage is intended to be tempary, pri to erection. The fabrication and delivery of joists should therefe be arranged to minimise the stage time, both at the fabricat s premises, and on site. Gang-Nail Systems Ltd recommends that the joists be wrapped in protective plastic covering, to protect the joists from sht-term exposure to inclement weather. The covering should permit ventilation and prevent moisture build-up. Certificate No. 04/0202 / Gang-Nail Systems Eco Joists 5

6 2.4 INSTALLATION PROCEDURE ECOJOIST beams must be installed strictly in accdance with the Certificate holder s instructions, and the conditions specified in this Certificate Wkmanship shall be in accdance with the Building Regulations 1997 to 2002 and BS :1990 Wkmanship on building sites. Code of practice f carpentry, joinery and general fixing ECOJOIST beams are prefabricated and shall not be cut amended on site unless approved by Gang- Nail Systems Ltd and signed off by a competent person. Adequate supervision is required to ensure that the suppting structure shall be accurately set out and constructed. Damaged beams shall not be used Beams should be handled and installed in a similar manner to solid timber beams. In accdance with nmal good practice, they should be protected from wetting during installation. BS Table 1 gives guidance on average moisture content attained in service, and upper limits on moisture content at the time of installation Typical installation details are given Figures 1 to 7 and the Certificate holder s instructions: Gang-Nail Systems Ltd Ecojoist Typical Details (Ireland) August Services and openings shall not be located within through the flo void unless specified in, and installed strictly in accdance with, the design drawings. The fire and sound resisting requirements of the flo construction shall not be compromised by the introduction of such services openings. Appropriate steps shall be taken to seal any openings to achieve the required fire resistance e.g. fire stopping shall be provided at all soil and vent pipes etc (see example given in Figure 7). Services and openings shall not be located within through the flo void unless specified in, and installed strictly in accdance with, the design drawings The fire resistance of different flo constructions is given in Table 8; see also Figures 2 to 6. Adequate supervision shall be provided to ensure the required standard of construction, fire-stopping etc is achieved. Where necessary, cavity barriers and fire stops shall be provided. See Cl 4.1 of this Certificate The flo construction should be completed as soon as possible to minimise exposure to moisture/precipitation In ground flos, adequate provision should be made f ventilation of the under flo space and f provision of damp proof courses damp proof membranes as required. See Cl 4.4 of this Certificate Preservative treatment shall be provided where appropriate (see Cl 3.4) If necessary, tempary bracing should be provided to maintain beams in a straight and plumb position during installation. 6 Certificate No. 04/0202 / Gang-Nail Systems Eco Joists

7 Part Three / Design Data GENERAL ECOJOIST beams are suitable f use as an alternative to traditional structural timber joists, in conventional flo construction, in domestic, commercial and light industrial buildings, up to and including four steys high, where the loading is as defined in Building Regulations 1997 Technical Guidance Document Part A Structure. The design shall be carried out by Gang-Nail Systems Ltd, in accdance with the Building Regulations and BS : Structural principles a) ECOJOIST beams act as flat trusses, transferring load to internal and external load bearing walls. The design shall include f the provision of the necessary intermediate suppts to meet the load span and deflection criteria. b) The beams are designed to ensure that the permissible stresses in shear, bending, tension compression will not be exceeded; long term deflection at mid span will not exceed of the clear span up to a maximum deflection of 14 mm. 3.3 Design a) Permissible Web Values: the calculations used to derive permissible spans are based on the permissible web values given in Table 7. b) Span: ECOJOIST beams, when designed in accdance with this Certificate, have adequate strength and stiffness to sustain the loadings specified, f the spans given in Table 4. c) Fixings: The fixing requirements are specified in Table 8 Flo construction matrix and fixing requirements. 3.4 Gang-Nail Systems Ltd recommends that where ECOJOIST beams are at risk from insect and fungal attack, e.g. in suspended ground flos; the flanges should be treated with preservative. The preservative used shall not compromise the durability of the steel webs. CCA preservative shall not be used. 3.5 CONSTRUCTION DETAILS In addition to the design and detailing carried out by Gang-Nail Systems Ltd., the overall flo construction shall be designed and detailed, by competent persons, in accdance with the Building Regulations 1997 to 2002, the Certificate holder s instructions and this Certificate. Typical examples are given in Figures 1 to Consideration shall be given to the incpation of services. Aperture dimensions are given in Table 9. The fire and sound resistance of the flo construction shall not be compromised by the introduction of services. See Cl 2.4.6, and Cl 4.1 of this Certificate any relevant requirements specified in Part 2 4 of this Certificate should be incpated at the design stage. Table 7: Permissible vertical shear values (pair of webs) Web arrangement V2-8 V2-10 V2-12 Single Compression 2.24 kn 2.87 kn 3.86 kn Double Compression 2.79 kn 4.10 kn 4.55 kn Single Tension 2.24 kn 2.76 kn 3.03 kn Double Tension 2.76 kn 3.28 kn 3.46 kn Certificate No. 04/0202 / Gang-Nail Systems Eco Joists 7

8 Table 8: Flo construction matrix and fixing requirements 30 Minutes Fire Resistance: Joist Web Joist Board Thickness Screw Intermediate Perimeter Floboard Depth Size Centres and Type* Fixing Noggins Noggins Thickness Centres Required? Required? 219mm 253mm 304mm V2 8 V2 10 V mm Fireline 150mm No Yes 18mm mm Fireline 150mm Yes Yes 22mm mm Fireline 150mm Yes Yes 22mm mm Wallboard 150mm No Yes 18mm mm Wallboard 150mm No Yes 22mm mm Wallboard 150mm No Yes 22mm 60 minutes Fire Resistance: Joist Web Joist Board Thickness Screw Intermediate Perimeter Floboard Depth Size Centres and Type* Fixing Noggins Noggins Thickness Centres Required? Required? 219mm 253mm 304mm V2 8 V2 10 V x 15mm Fireline 150mm No Yes 22mm x 15mm Fireline 150mm No Yes 22mm x 15mm Fireline 150mm No Yes 22mm Notes: 1. Technical assessments were carried out on flo constructions incpating Fireline and Wallboard, i.e. products of Gypsum Industries Limited, who may be contacted f further advice. Where other board products are used, it should be established that their perfmance is equal to, better that those indicated above. 2. Ceiling boards are positioned so that their long edges run perpendicular to the joists. Where a second layer is used, it must be set out such that the joints do not occur at the same location as the first layer of board. 3. The boards are fixed to the underside of the joist using Ø3.2 x38mm long black phosphated steel screws positioned at 150mm centres. Where two layers are used, Ø3.2 x 60mm long screws should be used f the second layer. 4. All joints in both layers of board should be taped with 50mm wide glass fibre tape and filled using gypsum joint filler. 5. a) General: It is recommended that any fire stopping around ceiling penetrations shall be inspected and signed off by a competent person. b) 30 minutes fire resistance: No apertures (downlighters, service penetrations etc.) should be present except where fitted with an approved light fitting an appropriate proven penetration sealing system. c) 60 minutes fire resistance: Only the lower plasterboard sheet shall be penetrated, leaving the upper two sheets intact thus removing the requirement f fire stopping the lower sheet penetrations (see Figures 5, 6 and 7). 6. Perimeter and intermediate noggins are required to suppt the boards at their edges. Perimeter noggins are required f all board thicknesses and joist centres, whereas intermediate noggins are only required f the thinner boards at larger centres. See above f details. 7. Perimeter noggins may be any of the following sizes: (depth x width): 38 x x x 72 Intermediate noggins may be any of the following sizes: (depth x width): 47 x The fixing and noggin details given here are based on the use of Gypsum Industries Ltd products and are minimum requirements. 9. Floing to be tongue and grooved and fixed in accdance with good practice. If square edged boards are used, timber noggins are required under board edges that are not suppted on joists. 8 Certificate No. 04/0202 / Gang-Nail Systems Eco Joists

9 Table 9: Aperture Details Web size D X Y S H W Max mm mm mm mm mm mm V V V Figure 1: Typical detail showing strongbacks, joist hangers and restraint straps Certificate No. 04/0202 / Gang-Nail Systems Eco Joists 9

10 Figure 2: 30 minutes fire resistance Typical flo junction with masonry wall Figure 3: 30 minutes fire resistance Typical non load-bearing timber stud partition parallel with Ecojoists 10 Certificate No. 04/0202 / Gang-Nail Systems Eco Joists

11 Figure 4: 30 minutes fire resistance Typical load-bearing timber stud partition perpendicular to Ecojoists Figure 5: 60 minutes fire resistance Typical compartment flo junction with party wall (bottom chd suppted on timber frame) Certificate No. 04/0202 / Gang-Nail Systems Eco Joists 11

12 Figure 6: 60 minutes fire resistance Typical compartment flo junction with masonry wall Figure 7: 60 minutes fire resistance Typical flo junction with Soil & Vent Pipe (SVP) 12 Certificate No. 04/0202 / Gang-Nail Systems Eco Joists

13 Part Four / Technical investigations BEHAVIOUR IN FIRE Internal Fire Spread (Structure) The fire resistance f flo constructions shown in Table 8 and Gang-Nail Systems Ltd Ecojoist Typical Details (Ireland) August 2004 have been assessed against BS 476 Part 21: 1987 Fire tests on building materials and structures. Methods f determination of the fire resistance of load bearing elements of construction, and are considered to be as indicated. Examples are given in Figures 2 to 7 of this Certificate. All relevant requirements of Building Regulations Part B must be satisfied eg: a) The junction between a flo and party wall should be fire stopped in accdance with Table A1 and Cl of TGD Part B; b) Cavity barriers should be provided where required, such that the unseen spread of fire and/ smoke, within concealed voids, is inhibited. 4.2 MATERIALS IN CONTACT WITH ELECTRIC WIRING Where electrical cables pass through highly insulated materials, de-rating of the electric cables should be allowed f, in accdance with ET 101: 2000 National Rules f Electrical Installations (ETCI). 4.3 MAINTENANCE ECOJOIST beams will not require maintenance, providing the flo is maintained in good repair, i.e. intact and protected from excess moisture. 4.5 SOUND The flo construction incpating the ECOJOIST beams will determine the resistance to impact and airbne sound. However data assessed indicates that the sound insulation properties of flos incpating ECOJOIST beams are at least as good as those of similar construction, incpating traditional timber flo joists. 4.6 ASSESSMENTS The following aspects were assessed: Existing data in relation to durability, moisture, fire and thermal properties; Fire resistance assessments and tests to BS 476 Part 21; Tensile and compressive load testing of steel webs Flexural and deflection testing of ECOJOIST beams; Verification of design method and load span tables; Assessment of fixing requirements; Assessment of Certificate holder s installation instructions, and typical construction details f Ireland. 4.7 OTHER INVESTIGATIONS The following were also carried out: Web manufacturing and beam fabrication process examined, including methods adopted f quality control. Details were obtained of the quality and composition of materials used; Site visits and user survey to assess the practicability of installation and perfmance of product in use. 4.4 DURABILITY When installed in accdance with the Certificate holder s instructions and this Certificate, and adequately protected from excessive moisture condensation, the design life of ECOJOIST beams is considered to be at least sixty years. Gang-Nail Systems Ltd recommends that where ECOJOIST beams are at risk from insect fungal attack, e.g. in suspended flos, flanges should be treated with preservative. Certificate No. 04/0202 / Gang-Nail Systems Eco Joists 13

14 Part Five / Conditions of Certification National Standards Authity of Ireland ("NSAI") following consultation with the Irish Agrément Board ("IAB") has assessed the perfmance and method of installation of the product/process/system and the quality of the materials used in its manufacture and certifies the product/process/system to be fit f the use f which it is certified provided that it is manufactured, installed, used and maintained in accdance with the descriptions and specifications set out in this Certificate and in accdance with the manufacturer's instructions and usual trade practice. This Certificate shall remain valid f five years from date of issue so long as: a) the specification of the product/process/system is unchanged; b) the Building Regulations 1997 to 2000 and any other regulation standard applicable to the product/process/system, its use installation remains unchanged; c) the product continues to be assessed f the quality of its manufacture and marking by NSAI; d) no new infmation becomes available which, in the opinion of the NSAI, would preclude the granting of the Certificate; e) the product process system continues to be manufactured, installed, used and maintained in accdance with the description, specifications and safety recommendations set out in this certificate; f) the registration and/ surveillance fees due to IAB are paid. 5.4 This Certificate does not comprise installation instructions and does not replace the manufacturer's directions any professional trade advice relating to use and installation which may be appropriate. 5.5 Any recommendations contained in this Certificate relating to the safe use of the certified product/process are preconditions to the validity of the Certificate. However the NSAI does not certify that the manufacture installation of the certified product process in accdance with the descriptions and specifications set out in this Certificate will satisfy the requirements of the Safety, Health and Welfare at Wk Act. 1989, of any other current future common law duty of care owed by the manufacturer by the Certificate holder. 5.6 The NSAI is not responsible to any person body f loss damage including personal injury arising as a direct indirect result of the use of this product process. 5.7 Where reference is made in this Certificate to any Act of the Oireachtas, Regulation made thereunder, Statuty Instrument, Code of Practice, National Standards. Manufacturer's instructions, similar publication, it shall be construed as reference to such publication in the fm in which it is in fce at the date of this Certification. 5.2 The IAB mark and certification number may only be used on in relation to product/processes in respect of which a valid Certificate exists. If the Certificate becomes invalid the Certificate holder must not use the IAB mark and certification number and must remove them from the products already marked. 5.3 In granting Certification, the NSAI makes no representation as to; (a) the absence presence of patent rights subsisting in the product/process; (b) the legal right of the Certificate holder to market, install maintain the product/process; (c) whether individual products have been manufactured installed by the Certificate holder in accdance with the descriptions and specifications set out in this Certificate. 14 Certificate No. 04/0202 / Gang-Nail Systems Eco Joists

15 The Irish Agrément Board BOARD This THE Certificate IRISH AGRÉMENT No. 04/0202 BOARD THE is IRISH accdingly AGRÉMENT granted BOARD THE by IRISH the AGRÉMENT NSAI to Gang- BOARD Nail THE IRISH Systems AGRÉMENT Ltd. BOARD THE IRISH AGRÉMENT BOARD AGRÉMENT on behalf BOARD of THE The IRISH Irish AGRÉMENT Agrément BOARD Board. THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT AGRÉMENT Date of BOARD Issue: THE April IRISH 2004 AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT AGRÉMENT Signed BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT THE IRISH Chief AGRÉMENT Executive, BOARD NSAI THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH BOARD Readers THE IRISH may AGRÉMENT check that BOARD the THE status IRISH AGRÉMENT of this Certificate BOARD THE has IRISH not AGRÉMENT changed BOARD by contacting THE IRISH AGRÉMENT the Irish BOARD Agrément THE IRISH Board, AGRÉMENT BOARD AGRÉMENT NSAI, BOARD Glasnevin, THE IRISH Dublin AGRÉMENT 9, Ireland. BOARD Telephone: THE IRISH AGRÉMENT (01) 807 BOARD THE Fax: IRISH (01) AGRÉMENT BOARD THE IRISH AGRÉMENT BOARD THE IRISH AGRÉMENT Certificate No. 04/0202 / Gang-Nail Systems Eco Joists 15