框架节点核心区斜压杆平面内宽度计算方法研究

Research on the in-plane width of the diagonal compression strut in RC beam-column joint core

对现有的节点核心区斜压杆宽度计算方法进行了探讨,收集了以往的框架节点试验数据,回归分析得出节点核心区斜压杆宽度计算公式,公式比较客观地反映了节点核心区斜压杆宽度随着混凝土强度、节点配筋和轴压比等因素的变化而变化的特性。

In this paper,the existing methods to calculate the width of the diagonal compression strut in RC beam-column joint core are discussed.According to collect experimental data for RC beam-column joint,the calculative formula is obtained by regression analysis.The formula objectively reflects the compression strut width varying with concrete strength,joint reinforcement ratio and axial compression ratio etc.