钢筋混凝土框架柱挠曲侧移二阶效应的整体考虑  

Whole Considering of Second-order Effect of Flexure and Displacement in RC Frame Column

作　　者：程光均[1] 于海祥[1] 白绍良[1] 武建华[1] 

机构地区：[1]重庆大学土木工程学院,400045

出　　处：《建筑结构》2006年第7期44-46,共3页Building Structure

摘　　要：论述了钢筋混凝土框架结构二阶效应的研究方法,从框架柱变形的角度出发,分析了有挠曲和侧移的框架柱的二阶效应,推导了考虑刚度折减的钢筋混凝土框架柱的二阶效应的解析法。在进行结构内力分析时,柱的各截面内力中可自动包括二阶效应,不需要再考虑弯矩增大系数,计算方便。The current design procedures of second-order effect for reinforced concrete frames are introduced. Based on the distortion of RC frame columns, it is analyzed that th6 second-order effect of both flexure and displacement in the frame columns. An analytical method for the solution of second-order effect considering the degradation of stiffness in reinforced concrete frames is presented. When calculating internal forces of the structure, the internal forces in each section of the column contain the second-order effect automatically. So it is convenient to calculate the internal forces, because the enlarging factor does not need to be considered.

关 键 词：钢筋混凝土 框架柱 二阶效应 

分 类 号：TU375.4[建筑科学—结构工程] TU391