北京某超高层商住楼动力弹塑性时程分析

Elastic-plastic time-history analysis on the super-high business-living building in Beijing

基于梁柱塑性铰和剪力墙纤维模型,利用MIDAS Building软件实现了超高层建筑结构的弹塑性时程分析。结合该结构研究了在大震作用下结构将出现的破坏模式、塑性发展特点等,并与弹性分析进行了对比,说明弹塑性分析更能反映实际情况,能对结构的抗震性能给出较为合理全面的评价,并对工程设计给出指导。

Based on the theory of plastic hinges(beams and columns) and fiber model(walls),elastic-plastic time-history analysis is performed on the super-high business-living building in Beijing by MIDAS Building software under the scarce earthquake load.Failure Modes and plastic zone development are researched according to the feature of the structure.Through the comparison with the elastic analysis,it is considered that evaluation on the structure can be deduced from the elastic-plastic analysis more reasonably and comprehensively,and there will be better instruction to the projects.