fischer fixing-systems main-catalogue Página 238
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Concrete screw ULTRACUT FBS II 6 · High performance steel anchors Loads Concrete screw UltraCut FBS II 6 Permissible loads for a single anchor¹) for multiple use of redundant non-structural applications* in normal concrete C20/25. For the design the complete current assessment ETA - 18/0242 has to be considered. Material/ surface 4 Minimum member thickness Maximum installation torque Non-cracked concrete Permissible tension (Nperm) and shear loads (Vperm); minimum spacing (smin) and edge distances (cmin) with reduced loads Permissible tension (Nperm) and shear loads (Vperm); minimum spacing (smin) and edge distances (cmin) with reduced loads hnom hmin Tinst,max²) Nperm³) Vperm³) smin³) cmin³) Nperm³) Vperm³) smin³) cmin³) [mm] [mm] [Nm] [kN] [kN] [mm] [mm] [kN] [kN] [mm] [mm] gvz 25 80 ≤5 0.7 1.8 35 35 1.4 2.3 35 35 gvz 30 80 ≤5 1.2 2.3 35 35 2.4 2.3 35 35 gvz 35 80 ≤5 1.7 4.3 35 35 3.1 4.3 35 35 gvz 40 80 ≤ 10 2.4 4.3 35 35 3.8 4.3 35 35 gvz 45 90 ≤ 10 2.9 4.3 35 35 4.8 4.3 35 35 gvz 50 90 ≤ 10 3.6 4.3 35 35 5.7 4.3 35 35 gvz 55 100 ≤ 10 4.0 6.3 35 35 6.4 6.3 35 35 Type FBS II 6 Screw-in depth Cracked concrete * In addition to the load table above, the following must be considered for multiple fastening of non-structural redundant systems: A multiple fixing (redundant system) according to EN 1992-4 and CEN/TR 17079 is defined by - at least 3 fixing points (per attached element) with at least one anchor at each fixing point and a permissible load per fixing point of 1.4 kN - or by at least 4 fixing points with at least one anchor each fixing point and a permissible load per fixing point of 2.1 kN - Additionally, it has to be proven that the stiffness of the attached element shall be large enough to ensure that in case of excessive slip or failure of a fastener the load on this fastener or fixing point can be transferred to neighbouring fixing points without significantly violating the requirements on the attached element in the serviceability and ultimate limit state. For further details see EN 1992-4 section 7.3 and CEN/TR 17079. ¹) Design according to EN 1992-4:2018 (for static resp. quasi-static loads). The partial safety factors for material resistance as regulated in the ETA as well as a partial safety factor for load actions of γL = 1.4 are considered. ²) Further technical information for installation see ETA. ³) In the case of combinations of tension and shear loads, bending moments with reduced or minimal edge and axial spacings (anchor groups), the design must be carried out in accordance with the provisions of the complete ETA and the provisions of the EN 1992-4:2018. Loads Concrete screw UltraCut FBS II 6 Permissible loads for a single anchor¹) for multiple use of redundant non-structural applications* in pre-stressed hollow-core concrete slabs of concrete strength C30/37. For the design the complete current assessment ETA - 18/0242 has to be considered. Type FBS II 6 gvz Screw-in depth hnom 25 30 35 40 45 50 55 Permissible load Fperm³) in the respective bottom flange thickness db ≥ 25 mm [kN] 0.2 0.5 0.5 0.5 0.5 0.5 0.5 db ≥ 30 mm [kN] 1.7 1.7 1.7 1.7 1.7 1.7 1.7 db ≥ 35 mm [kN] 1.7 1.9 2.1 2.4 2.6 2.9 3.1 db ≥ 40 mm [kN] 1.7 2.3 2.6 2.9 3.3 3.6 3.8 db ≥ 50 mm [kN] 1.7 2.3 3.3 3.8 4.3 4.3 5.7 [Nm] 5.0 5.0 10 10 10 10 10 Installation torque Tinst,max Minimum spacing s1, s2²) [mm] 100 100 100 100 100 100 100 Minimum edge distance c1, c2²) [mm] 100 100 100 100 100 100 100 * In addition to the load table above, the following must be considered for multiple fastening of non-structural redundant systems: A multiple fixing (redundant system) according to EN 1992-4 and CEN/TR 17079 is defined by - at least 3 fixing points (per attached element) with at least one anchor at each fixing point and a permissible load per fixing point of 1.4 kN - or by at least 4 fixing points with at least one anchor each fixing point and a permissible load per fixing point of 2.1 kN - Additionally, it has to be proven that the stiffness of the attached element shall be large enough to ensure that in case of excessive slip or failure of a fastener the load on this fastener or fixing point can be transferred to neighbouring fixing points without significantly violating the requirements on the attached element in the serviceability and ultimate limit state. For further details see EN 1992-4 section 7.3 and CEN/TR 17079. ¹) Design according to EN 1992-4:2018 (for static resp. quasi-static loads). The partial safety factors for material resistance as regulated in the ETA as well as a partial safety factor for load actions of γL = 1.4 are considered. ²) Further technical information for installation see ETA. ³) Valid for tensile load, shear load and oblique load under any angle. In the case of combinations of tensile, shear loads and bending moments, the design must be carried out in accordance with the provisions of the complete ETA and the provisions of the EN 1992-4:2018. 238
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