浅论强震动下钢筋混凝土桥墩的残余抗剪强度

Disussion on Residual Shear Strength of RC Bridge Columns under Strong Earthquake Ground Movement

讨论了钢筋混凝土桥墩在强震动作用下的剪切机理 ,提出强震动作用下混凝土桥墩塑性铰区截面残余抗剪强度的概念。在评述了国外主要地震国家现行的规范公式的基础上 ,提出对国内现行规范关于强震动作用下钢筋混凝土桥墩抗剪验算的改进建议。

The shear mechanism of RC bridge columns under strong earthquake ground movement is discussed in the paper.The concept of residual shear strength in the plastic hinge zone of RC bridge columns under strong earthquake ground movement is proposed.Based on review of current code expressions of major seismic countries.improvements for current code on shear design of RC bridge columns under strong earthquake ground movement are suggested.