基于结构弹塑性地震反应的柱变轴力加载方法研究  

A study on the loading method of varying axial force based on the elasto plastic seismic response of structure

作　　者：杨红[1] 白绍良[1] 

机构地区：[1]重庆大学

出　　处：《世界地震工程》2002年第2期80-84,共5页World Earthquake Engineering

基　　金：国家自然科学基金资助项目(59878056)

摘　　要：通过对平面框架弹塑性动力反应的分析,本文对地震作用下框架柱的轴力变化规律进行了研究,结果表明,在试验中使轴力与弯矩成比例变化的加载方案与框架柱的实际受力情况最一致,而假定轴力与水平侧移成比例变化则会带来一定的误差,但仍可作为近似的变轴力加载方法。Based on elasto- plastic seismic response of plane frame, the characteristics of varying axial force in the frame excited by seismic wave are analyzed in this paper. The results indicate that the loading method of varying axial force directly as moment in test is most consistent with the actual working behavior of frame columns. A few errors will come into being if varying axial force directly as horizontal displacements, but this is also a useful approximate loading method of varying axial force.

关 键 词：结构 钢筋混凝土 柱 变轴力加载方法 弹塑性动力反应 地震作用 

分 类 号：TU352.11[建筑科学—结构工程] TU435