配抗剪钢筋混凝土板的冲切

Punching Shear of Concrete Slabs With Shear Reinforcement

本文根据11块钢筋混凝土板的冲切试验,分析抗剪弯起钢筋对冲切强度的影响规律,抗剪钢筋不同的平面布置位置对冲切强度及延性的贡献,探讨冲切破坏机理,建立半理论半经验的冲切强度计算公式。所得结论可供修订混凝土结构设计规范及工程设计参考。

Based on punching shear test taken on 11 reinforced concrete slabs, the author analyses the effect of shear reinforcement on punching shear strength; and discusses the ef- fect of different planar layouts of shear reinforcement on punching shear strength and ductili- ty; and inquires into the mechanism of punching shear damage; and works out a semiempirical formula for computing punching shear strength. The results may serve a reference for the re- vision of design specifications of concrete structure and its engineering design.