Lattice girders and punching shear reinforcement
under fatigue stress
Verification concept on the basis of S-N curves
A verification against fatigue must be provided for reinforced concrete floors under frequently recurring stress, e.g., due to forklift truck traffic. This also applies to structural components reinforced by lattice girders or punching shear reinforcement. Currently, S-N curves have been determined experimentally for both lattices girders and a special punching shear reinforcement. The fatigue resistances were determined in fatigue tests carried out on reinforcement sections embedded in concrete, taking the weld knots into account. These different fatigue resistances for lattice girders in...
