fischer fixing-systems main-catalogue Page 297
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Hollow-ceiling anchor FHY · High performance steel anchors Loads Hollow-ceiling anchor FHY Permissible loads¹) of a single anchor in pre-stressed hollow-core concrete slabs of strength class ≥ C45/55. For the design the complete current approval Z-21.1-1711 has to be considered. Pre-stressed hollow-core slab Material/surface Screw material²) Type FHY M6 FHY M8 FHY M10 Bottom flange thickness Installation torque Required edge distance (with one edge) for max. load Permissible load (Fperm); minimum spacing (smin) and edge distances (cmin) with reduced loads db Tinst Ccr Fperm³) smin4) cmin4) [mm] [Nm] [mm] [kN] [mm] [mm] gvz 4.6 25 - 29 10 150 0.7 70 100 gvz 4.6 30 - 39 10 150 0.9 80 100 gvz 4.6 ≥ 40 10 150 2.0 100 100 gvz 4.6 25 - 29 10 150 0.7 70 100 gvz 4.6 30 - 39 10 150 0.9 80 100 gvz 4.6 ≥ 40 10 150 2.0 100 100 gvz 4.6 30 - 39 20 150 1.2 80 100 gvz 4.6 ≥ 40 20 150 3.0 100 100 4 ¹) The required partial safety factors for material resistance as well as a partial safety factor for load actions of γL = 1,4 are considered. ²) Further steel grades, versions and technical data see approval. ³) Maximum load for char. spacing and edge distances. Valid for tensile load, shear load and oblique load under any angle. In the case of shear loads with lever arm (bending) as well as reduced/minimum spacing or edge distances (anchor groups), the design must be carried out in accordance with the provisions of the complete approval. 4) Minimum possible axial spacings resp. edge distance while reducing the permissible load. Loads Hollow-ceiling anchor FHY stainless steel R Recommended loads¹) of a single anchor in pre-stressed hollow-core concrete slabs of strength class ≥ C45/55. Pre-stressed hollow-core slab Material/surface Screw material Type FHY M6 R FHY M8 R FHY M10 R Bottom flange thickness Installation torque Required edge distance (with one edge) for max. load Recommended tension (Nrec) and shear loads (Vrec); minimum spacing (smin) and edge distances (cmin) with reduced loads db Tinst ccr Frec²) smin³) cmin³) [mm] [Nm] [mm] [kN] [mm] [mm] R A4 - 50 25 - 29 10 150 0.7 70 100 R A4 - 50 30 - 39 10 150 0.9 80 100 R A4 - 50 ≥ 40 10 150 2.0 100 100 R A4 - 50 25 - 29 10 150 0.7 70 100 R A4 - 50 30 - 39 10 150 0.9 80 100 R A4 - 50 ≥ 40 10 150 2.0 100 100 R A4 - 50 30 - 39 20 150 1.2 80 100 R A4 - 50 ≥ 40 20 150 3.0 100 100 ¹) Required safety factors are considered. ²) Maximum load for char. spacing and edge distances. Valid for tensile load, shear load and oblique load under any angle. ³) Minimum possible axial spacings resp. edge distance while reducing the recommended load. 297
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