某超限高层住宅结构的弹塑性对比分析研究

Contrastive analysis and study on elastic-plastic performance of a super high-rise residential structure

本文以某部分框支剪力墙超高层结构为例,采用三维弹塑性分析软件PerForm-3D分别进行了弹塑性时程分析和静力弹塑性分析,将获得的整体反应结果和构件损伤情况进行了对比。结果表明:两者一致地提示了结构弹塑性反应的基本特点,主要指标吻合较好,说明当结构基本振型有效质量参与系数大于50%以上时,可用静力弹塑性代替动力弹塑性分析,并可取得较好的计算结果。

Based on a super high-rise and partial framed-supported shear wall structure,inelastic history analysis and static inelastic analysis were carried out using Perform-3D which was a professional software specialized on inelastic analysis in 3D structures. Structural integrated responses and the components' damage status were obtained from analysis and compared to each other. The results showed consistently the similar basic characteristic of structural inelastic responses,and the key indexes were in good agreement. It indicates that dynamic inelastic analysis can be instead of static inelastic analysis when the participation factor of effective mass of structural basic modal is greater than 50%,and a satisfying result would be obtained.