钢筋混凝土框架柱双向受剪承载力计算方法探讨

在认真学习框架柱双向受剪承载力计算方法“超强系数法”的基础上,提出目前正在修订的２０００《混凝土结构设计规范》（征求意见稿）中采用该方法的条文规定尚存在着不足之处,并提出了解决该问题的建议。同时本文作者提出了双向受剪承载力的三析线简化计算方法,对简化计算方法的误差进行了分析。最后给出了两种计算方法的设计与校核示例。

Analytical Method on Bi-directional Shearing Capacity of RC Framed Columns

The current analytical method on bi-directional shearing capacity of RC framed columns, the so called "over strength factor method", in the drafting "Design Code of RC structures", is carefully investigated. Limits of this method are presented and suggestions are put forward to modify it. On this basis, the simplified tri linear analytical method to determine bi directional shearing capacity is presented afterwards and the error of this method is given. Finally, the cases of design and check of the two methods are illustrated.