A-8074 Raaba-Grambach, Gustinus-Ambrosi-Straße 1-3

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1 Page: 1 of 33 Te c h n i c a l G u i d e l i n e f o r AV I N I R O T H E R M O K O R B D e s c r i p t i o n P u r p o s e The AVI-NIRO-Thermokorb (with an insulation thickness of 8 cm) and the AVI-NIRO-XII-Thermokorb (with an insulation thickness of 12 cm) are insulated balcony connectors that serve to improve the thermal insulation of cantilever reinforced concrete elements (such as balcony slabs) and the like. This connecting element is installed between a concrete component inside the building and a concrete component attached outside. S t r u c t u r e The AVI-NIRO-Thermokorb and/or the AVI-NIRO-XII- Thermokorb consists of an expanded polystyrene panel with a thickness of 8 cm or 12 cm and of a structural truss (individual ribs) made of steel bars and steel profiles (Fig. 3). According to the type, compression-, tension- and shear forces of different extent are transferred. To avoid corrosion, the framework in the area of the expanded polystyrene panel is made of stainless steel profiles (U-shaped U-30 stainless steel profile, grade , Fig. 1 and Fig. 2), and to their ends ribbed rebars (stirrups, B550A) are welded. For the transfer of forces from the balcony connectors to the attached reinforced concrete elements, an additional customer-provided reinforcement and/or connection reinforcement is placed. The AVI calculation program THERMO-TOOL will recommend the required size of the connection reinforcement. T y p e s The below type series are produced preferably. The number of individual ribs per type results from the figure behind the type name. Special executions are possible, e. g. for level changes, cantilever slab connections to walls and the like. In any case, the required customer-provided connection reinforcement must be observed. 1.) Type series TKM and/or XII-TKM (Fig. 5) For cantilever balcony slabs (cantilever slabs) allowing for the transfer of bending moments and shear forces (interaction) even with different signs. The tension- and the compression parts are designed in the same way, consisting of a U-shaped stainless profile and stirrups of ribbed rebars with straight or bent legs welded to the profiles. This type series is used also as special shape TKM and/or special shape XII-TKM in case of level changes (Fig. 10, Fig. 12), cantilever slab connections to walls (Fig. 14, Fig. 16) and other applications in which bending moments and shear forces are transferred. 2. Type series TKA and/or XII-TKA (Fig. 6) For the transfer of bending moments, shear forces and axial forces. Appropriate for brackets, parapet walls (special name AT/2 and/or XII-AT/2, Fig. 8) and various other connections of prefabricated elements. Designed for tension- and compression parts as for type series TKM and/or XII-TKM. In addition, the TKA and/or XII-TKA connector can be utilized for level changes (Fig. 11,Fig. 13) or cantilever slab connections (Fig. 15, Fig. 17) to walls. 3.) Type series TKF and/or XII-TKF (Fig. 7) This is a two-piece version of type series TKM and/or XII- TKM which has been developed in particular for prefabricated elements (half slabs). One part (compression chord) is installed in the precast concrete factory, the second part (tension chord) is placed on site. C o n d i t i o n s U s e AVI-NIRO-Thermokorb and/or XII-Thermokorb connectors may be used only in structures of building construction with mainly static load. It is not allowed to use the connectors in reinforced concrete building components exposed to chloride attack such as parking decks, bridges and the like. Without explicit certificate of suitability established by an accredited testing laboratory, it is not allowed to use them in chloride or hydrogen chloride atmosphere as for instance above chlorinated water in swimming pools. The position and type designation of the connectors as well as the required additional reinforcement must be marked on building- and construction plans. The use of AVI-NIRO-Thermokorb and/or AVI-NIRO-XII- Thermokorb is allowed only in building components of reinforced concrete with a minimum concrete strength class of C20/25. For exteriors a minimum concrete strength class of C25/30 is recommended. A-8074 Raaba-Grambach, Gustinus-Ambrosi-Straße 1-3 Telefon: (++43/316) Bankverbindung: DVR: Firmenbuchgericht: Fax: (++43/316) Stmk. Bank und Sparkassen AG UID: ATU Landesgericht für ZRS Graz support@avi.at IBAN: AT ARA-Lizenz-Nr.: 6285 Firmenbuchnr.: FN457515t BIC: STSPAT2GXXX

2 Page: 2 of 33 S t r u c t u r a l a n a l y s i s a n d d e s i g n The structural safety and serviceability of the thermal insulating element must be proven in every single case by a licensed structural engineer. To that end, it is permissible to use design tables and drawings which have been certified for the type of element in question. For the required analyses, Eurocode regulations and the regulations of other relevant standards must be observed. With regard to the maximum applied forces, the following tables and interaction diagrams (M-V interaction) are applicable: Type series TKM/TKA/TKF: P. 4-8; Type series XII-TKM/XII-TKA/XII-TKF: P. 9-13; When design tables, interaction diagrams and typical construction details are used instead of a complete structural calculation, these documents must contain the below data: - Type designation - Element dimensions - Dimensions of building component - Applied forces or resistances against moments, shear forces, axial forces - Details referring to the recommended camber due to rigid body rotation in the area of the connector - Design instructions. For the connection between the connector and the attached reinforced concrete elements, Eurocode and/or the relevant standards are applicable. In cantilever- and terrace slabs, expansion joints must be provided at a maximum spacing of 12 m. In dependence of loads and application, wider expansion joint spacings may be determined in consultation with AVI s Technical Service. For the complete structure of a building as well as for the camber of the shuttering, the additional deflection resulting from the deformation of the AVI-NIRO-Thermokorb and/or AVI-NIRO-XII-Thermokorb must be taken into consideration (see in this context Table 2 and Table 3). F i r e p r o t e c t i o n The fire resistance class of the AVI-NIRO-Thermokorb and/or AVI-NIRO-XII-Thermokorb must comply with the requirements on safety in case of fire. As for compliance with the respective fire resistance classes see the installation examples in Fig. 18 through Fig. 20. Thermokorb elements without fire-proofing panel basically have fire resistance class R60. For special fire protection requirements, fire-proofing panels are glued onto the thermal insulating elements (see Table 1). For compliance with class REI120 the EPS panel must be covered by non-flammable material (Fig. 4). When laying Thermokorb elements with fire-proofing panels (at bottom and top 15mm each) the Thermokorb elements will have to be laid closely one next to each other in order to obtain fire resistance class REI120. For any deliberately chosen spacings between Thermokorb elements the gaps will have to be closed on construction site using intermediate insulation in the form of Polystyrol panels with integrated fire-proofing panels at bottom and top or using non-combustible mineral wool. For the preferred laying of individual Thermokorb elements (rib types /parapet wall elements) these Thermokorb elements already come with fire-proofing panels all around (at bottom and top 15 mm each; at the side at least 10 mm each). If need be, also the standard Thermokorb elements (length of element 1 m) can be delivered with premounted fire-proofing panels on all sides. Fire-proofing panels Standard Thermokorb Elements (1m) TK / XII-TK R60 TK / XII-TK REI120 Top / bottom 0 mm 15 mm At side Fire-proofing panels 0 mm Rib Types TK / XII-TK R60 0 mm (optional at least 10mm) TK / XII-TK REI120 Top / bottom 0 mm 15 mm At side 0 mm at least 10 mm Table 1: Fire resistance classes - Thermokorb elements I n s t a l l a t i o n For installation, the instructions of the manufacturer must be observed. The connectors must be covered and sealed sufficiently and permanently mainly in order to prevent the penetration of road salt containing drizzle. Good compacting of the concrete in the area of the connectors must be ensured. Q u a l i t y c o n t r o l Production is subject both to internal and external quality control ensured by an accredited Austrian inspection agency.

3 Page: 3 of 33 AVI-NIRO-Thermokorb: Recommended additional camber as a percentage of cantilever length Rib height RH Slab thickness Rotation φ cm cm % 11 d d d d d Table 2: Additional camber as a percentage of cantilever length of the AVI-NIRO-Thermokorb (with an EPS insulation thickness of 8 cm) AVI-NIRO-XII-Thermokorb: Recommended additional camber as a percentage of cantilever length Rib height RH Slab thickness Rotation φ cm cm % 11 d d d d d Table 3: Additional camber as a percentage of cantilever length of the AVI-NIRO-XII-Thermokorb (with an EPS insulation thickness of 12 cm) The indicated table values of rotation as a percentage of cantilever length result from the deformation of the connector being in a serviceability limit state. They are recommended values. The total camber to be applied to the balcony slab results from the calculation based on EC 2 (EN and applicable National Annex). Additional camber c resulting from the connector: φ 100,, g and 50% of the live load q/2. Definition of the load case combination for the calculation of deformation may be determined by the structural engineer. l k φ M Ed,c M Rd,max Cantilever length Rotation in % (see table) Decisive bending moment in knm/m in ultimate limit state for g+q/2 Maximum design value of applied moment of AVI-NIRO-Thermokorb and/or AVI-NIRO-XII- Thermokorb in knm/m (see Table 4 through Table 6 and/or Table 7 through Table 9) For the load case combination (ULS) used to determine camber it is recommended to apply the full dead load

4 Page: 4 of 33 AVI-NIRO-Thermokorb (with an EPS insulation thickness of 8 cm) Tables of Applied Forces: Rib height [cm] Number of ribs Moment (knm) Shear force (kn) Moment (knm) 8, Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Table 4: Maximum moment MRd,x,max and associated shear force VRd,y for type series TKM and TKA V1+V2 Rib height [cm] Number of ribs Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Table 5: Maximum shear force VRd,y,max and associated moment MRd,x for type series TKM and TKA Rib height [cm] Number of ribs Moment (knm) 8, Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Table 6: Maximum moment MRd,x,max and associated shear force VRd,y for type series TKF M Rd,y,max and V Rd,x,max for a horizontal rib Slab thickness 12 cm Jy = 5.46 cm 4 Wy = 3.64 cm³ MRd,y = 2.1 knm VRd,x = 26.7 kn

5 Page: 5 of 33 AVI-NIRO-Thermokorb (with an EPS insulation thickness of 8 cm) Interaction Diagrams for Slabs Interaction diagrams serve to determine the number of ribs required for the transfer of the acting applied forces. The curves basically apply to the type series TKM, TKA V1, TKA V2 and (TKF). For the type series TKA with a standard stirrup overhang (120 mm) produced just for a rib height of 11 cm the M-V curve shall apply just up to V Rd,y,max. The transfer of larger bending moments (up to M Rd,x,max) is possible by installing stirrups of variants V1 and V2 (with a stirrup overhang of 170 and 220 mm). The stirrups to be provided by the customer to that end are shown for different applications in Fig. 11, Fig. 13, Fig. 15 and Fig. 17. For the type series TKF the shear resistance V Rd,y shown in brackets shall apply. INTERACTION DIAGRAM FOR SLABS EXPLANATORY NOTES ON DIAGRAMS; EXAMPLE OF RIB HEIGHT OF 13 CM

6 Page: 6 of 33 INTERACTION DIAGRAM FOR SLABS RIB HEIGHT = 11 CM TYPE SERIES: TKM, TKA, TKA V1, TKA V2 INTERACTION DIAGRAM FOR SLABS RIB HEIGHT = 13 CM* TYPE SERIES: TKM, TKA V1, TKA V2, (TKF) * For the type series TKF the shear resistance V Rd,y shown in brackets shall apply. In case of type series TKA only the variants V1 and V2 will be produced with this rib height.

7 Page: 7 of 33 INTERACTION DIAGRAM FOR SLABS RIB HEIGHT = 15 CM* TYPE SERIES: TKM, TKA V1, TKA V2, (TKF) INTERACTION DIAGRAM FOR SLABS RIB HEIGHT = 17 CM* TYPE SERIES: TKM, TKA V1, TKA V2, (TKF) * For the type series TKF the shear resistance V Rd,y shown in brackets shall apply. In case of type series TKA only the variants V1 and V2 will be produced with this rib height.

8 Page: 8 of 33 INTERACTION DIAGRAM FOR SLABS RIB HEIGHT = 19 CM* TYPE SERIES: TKM, TKA V1, TKA V2, (TKF) * For the type series TKF the shear resistance V Rd,y shown in brackets shall apply. In case of type series TKA only the variants V1 and V2 will be produced with this rib height.

9 Page: 9 of 33 AVI-NIRO-XII-Thermokorb (with an EPS insulation thickness of 12 cm) Tables of Applied Forces: Rib height [cm] Rib height [cm] Rib height [cm] Number of ribs Moment (knm) Shear force (kn) Moment (knm) 8, Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Table 7: Maximum moment MRd,x,max and associated shear force VRd,y for type series XII-TKM and XII-TKA V1+V2 Number of ribs Moment (knm) , Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Table 8: Maximum shear force VRd,y,max and associated moment MRd,x for type series XII-TKM and XII-TKA Number of ribs Moment (knm) 8, Shear force (kn) 7, Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Moment (knm) Shear force (kn) Table 9: Maximum moment MRd,x,max and associated shear force VRd,y for type series XII-TKF M Rd,y,max and V Rd,x,max for a horizontal rib Slab thickness 12 cm Jy = 6.81 cm 4 Wy = 4.54 cm³ MRd,y = 2.9 knm VRd,x = 24.1 kn

10 Page: 10 of 33 AVI-NIRO-XII-Thermokorb (with an EPS insulation thickness of 12 cm) Interaction Diagrams for Slabs Interaction diagrams serve to determine the number of ribs required for the transfer of the acting applied forces. The curves basically apply to the type series XII-TKM, XII-TKA V1, XII-TKA V2 and (XII-TKF). For the type series XII-TKA with a standard stirrup overhang (120 mm) produced just for a rib height of 11 cm the M-V curve shall apply just up to V Rd,y,max. The transfer of larger bending moments (up to M Rd,x,max) is possible by installing stirrups of variants V1 and V2 (with a stirrup overhang of 170 and 220 mm). The stirrups to be provided by the customer to that end are shown for different applications in Fig. 11, Fig. 13, Fig. 15 and Fig. 17. For the type series XII-TKF the shear resistance V Rd,y shown in brackets shall apply. INTERACTION DIAGRAM FOR SLABS EXPLANATORY NOTES ON DIAGRAMS; EXAMPLE OF RIB HEIGHT OF 13 CM

11 Page: 11 of 33 RIB HEIGHT = 11 CM INTERACTION DIAGRAM FOR SLABS TYPE SERIES: XII-TKM, XII-TKA, XII-TKA V1, XII-TKA V2 RIB HEIGHT = 13 CM* INTERACTION DIAGRAM FOR SLABS TYPE SERIES: XII-TKM, XII-TKA V1, XII-TKA V2, (XII-TKF) * For the type series XII-TKF the shear resistance V Rd,y shown in brackets shall apply. In case of type series XII-TKA only the variants V1 and V2 will be produced with this rib height.

12 Page: 12 of 33 RIB HEIGHT = 15 CM* INTERACTION DIAGRAM FOR SLABS TYPE SERIES: XII-TKM, XII-TKA V1, XII-TKA V2, (XII-TKF) RIB HEIGHT = 17 CM* INTERACTION DIAGRAM FOR SLABS TYPE SERIES: XII-TKM, XII-TKA V1, XII-TKA V2, (XII-TKF) * For the type series XII-TKF the shear resistance V Rd,y shown in brackets shall apply. In case of type series XII-TKA only the variants V1 and V2 will be produced with this rib height.

13 Page: 13 of 33 RIB HEIGHT = 19 CM* INTERACTION DIAGRAM FOR SLABS TYPE SERIES: XII-TKM, XII-TKA V1, XII-TKA V2, (XII-TKF) * For the type series XII-TKF the shear resistance V Rd,y shown in brackets shall apply. In case of type series XII-TKA only the variants V1 and V2 will be produced with this rib height.

14 Page 14 of 33 Thermokorb (with an EPS insulation thickness of 8 cm) AVI stainless steel U-profiles, C850 Cross section properties for a single rib element Slab thickness [cm] Rib height RH [cm] 11, Thermokorb profile Ix [cm 4 ] (thickness of wall of 3.0 Iy [cm mm) ] Fig. 1: Thermokorb stainless steel U-profile 3.0 mm

15 Page 15 of 33 XII-Thermokorb (with an EPS insulation thickness of 12 cm) AVI stainless steel U-profiles, C850 Cross section properties for a single rib element Slab thickness [cm] Rib height RH [cm] 11, XII-Thermokorb profile Ix [cm 4 ] (thickness of wall of 4.3 mm) Iy [cm 4 ] Fig. 2: XII-Thermokorb stainless steel U-profile 4.3 mm

16 Page: 16 of 33 Thermokorb and XII-Thermokorb: TKM/E R60 and/or XII-TKM/E R60 (without fire-proofing panels) Fig. 3: TKM/E and/or XII-TKM/E without fire-proofing panels (e.g. RH=15 cm)

17 Page: 17 of 33 Thermokorb and XII-Thermokorb: TKM/E REI120 and/or XII-TKM/E REI120 with fire-proofing panels Fig. 4: TKM/E and/or XII-TKM/E with fire-proofing panels (e.g. RH=15 cm)

18 Page: 18 of 33 Type series: TKM and/or XII-TKM Fig. 5: Application in an attached composite heat insulation system

19 Page: 19 of 33 Type series: TKA and/or XII-TKA Fig. 6: Application in attached parapet wall

20 Page: 20 of 33 Type series: TKF and/or XII-TKF Fig. 7: Application with two-piece Thermokorb

21 Page: 21 of 33 Type series: AT/2 and/or XII-AT/2 Fig. 8: Application with parapet wall connections

22 Page: 22 of 33 Barrier-free connection detail sill of max. 30 mm Fig. 9: Barrier-free connection detail with TKM and/or XII-TKM

23 Page: 23 of 33 Barrier-free connection detail with level change up sill of max. 30 mm Variant with special shape TKM and/or special shape XII-TKM (as from 6 ribs) Fig. 10: Barrier-free connection detail with special shape TKM and/or special shape XII-TKM

24 Page: 24 of 33 Barrier-free connection detail with level change up sill of max. 30 mm Variant with TKA and/or XII-TKA V1 or V2 (up to a maximum of 5 ribs) Fig. 11: Barrier-free connection detail with TKA and/or XII-TKA V1 or V2 and customer-provided stirrups

25 Page: 25 of 33 Level change down Variant with special shape TKM and/or special shape XII-TKM (as from 6 ribs) Fig. 12: Level change down with special shape TKM and/or special shape XII-TKM

26 Page: 26 of 33 Level change down Variant with TKA and/or XII-TKA V1 or V2 (up to a maximum of 5 ribs) Fig. 13: Level change down with TKA and/or XII-TKA V1 or V2 and customer-provided stirrups

27 Page: 27 of 33 Cantilever slab connection to wall - top Variant with special shape TKM and/or special shape XII-TKM (as from 6 ribs) Fig. 14: Cantilever slab connection to wall (top) with special shape TKM and/or special shape XII-TKM

28 Page: 28 of 33 Cantilever slab connection to wall - top Variant with TKA and/or XII-TKA V1 or V2 (up to a maximum of 5 ribs) Fig. 15: Cantilever slab connection to wall (top) with TKA and/or XII-TKA V1 or V2 and customer-provided stirrups

29 Page: 29 of 33 Cantilever slab connection to wall - bottom Variant with special shape TKM and/or special shape XII-TKM (as from 6 ribs) Fig. 16: Cantilever slab connection to wall (bottom) with special shape TKM and/or special shape XII-TKM

30 Page: 30 of 33 Cantilever slab connection to wall - bottom Variant with TKA and/or XII-TKA V1 or V2 (up to a maximum of 5 ribs) Fig. 17: Cantilever slab connection to wall (bottom) with TKA and/or XII-TKA V1 or V2 and customer-provided stirrups

31 Page: 31 of 33 Installation example with required fire protection Fig. 18: Arrangement of fire-proofing panels on the outsides of the Thermokorb element

32 Page: 32 of 33 Installation example with required fire protection Fig. 19: Thermokorb element covered by concrete or non-inflammable material

33 Page: 33 of 33 Installation example with required fire protection Fig. 20: Arrangement of Thermokorb element with non-inflammable insulating material at the top and at the bottom