走行荷重が作用する道路橋RC床版の押抜きせん断耐力評価式

抄録

The authors conducted a punching shear test using three types of reinforced concrete (RC) slab test specimens to evaluate the out-of-plane shear load-carrying capacity of RC slabs in Highway Bridge under running loads. The authors proposed a punching shear dynamic model and an evaluation formula for punching shear load-carrying capacity based on the failure conditions and the strain in reinforcing bars. As a result, the punching shear-load carrying capacities near the yield strength, plastic zone, and fracture load calculated from the evaluation formula based on the model were in good agreement with experimental values. The appropriateness of the evaluation formula for the out-of-plane shear load-carrying capacity was assessed.