摘要
Pushover分析是一种基于位移的静力弹塑性分析方法,近几年在国内外得到了广泛的重视和应用。本文首先阐述了Pushover能力谱方法的原理及其在SAP2000N中的应用步骤,接着对偏心支撑钢框架算例进行了分析,根据Pushover曲线,对结构性能点进行了试算与逼近的理论计算。另外,算例分析还证明,Pushover能力谱方法能够对结构的屈服机制、薄弱层位置、结构的性能目标等做出评价。
Pushover analysis, which is widely recognized and applied at home and abroad, is an inelastic static analysis method based on displacements. In this paper,the principle and application procedure of the method in SAP2000N are firstly explained,then an eccentric braced steel frame is analyzed. According to the Pushover curve, the approach and trial calculation of the performance point is completed. In addition, it is shown that the Pushover analysis can estimate the yield mechanism, the weak parts and the performance object of the structure.
出处
《四川建筑科学研究》
北大核心
2009年第3期148-151,共4页
Sichuan Building Science
基金
上海市重点学科开放经费项目"现代建筑钢结构的静动力非线性理论
关键技术研究及产业化"资助项目
关键词
能力谱
需求谱
性能点
偏心支撑钢框架
capacity spectrum
demand spectrum
performance point
eccentric braced steel frame
