巨型框架结构抗震性能的有限元分析

Finite element analysis on seismic properties of mega-frame structures

文章建立了钢筋混凝土巨型框架结构有限元模型,并进行反应谱分析,分析表明:分别改变主框架柱刚度、主框架梁刚度对结构抗震性能的影响是不同的;主框架梁层数越多对侧移的控制作用越明显;主框架梁层数一定的情况下,靠近结构下部布置主框架梁比靠近上部布置控制侧移更明显,层间位移角分布更均匀。

The essay discusses about the reinforced concrete mega-frame structure with finite element analysis modeling was introduced to study on the response spectrum analysis.According to the results obtained：the effects are different on the seismic properties by considering the changes of mega-column＇s stiffness or mega-beam＇s stiffness;the major beam controls the horizontal displacements more obviously with more layers of it;the major beam controls the horizontal displacements more obviously and drift angle is distributed more evenly when the mega-beam＇s layout near the lower part of the structure.