对于复杂高层结构,通常的分析方法主要有振型分解反应谱法、弹性时程分析法、静力弹塑性(pushover)分析方法等。而对于高度较高、周期较长及受高阶振型影响较大的结构,动力弹塑性分析方法能更准确地分析地震作用对此类结构的影响。该文结合中交南方总部大楼项目,运用Perform-3D程序对其进行了罕遇地震下的动力弹塑性分析,得出了结构在罕遇地震作用下的动力响应及关键部位、关键构件的塑性发展情况,对结构大震性能作出评价。 For complex high-rise structures, the usual methods of analysis include vibration mode decomposition response spectroscopy, elastic time-history analysis, and pushover analysis. For structures with higher heights, longer periods and greater influence by higher order modes, the dynamic elasto-plastic analysis method can more accurately analyze the effect of seismic action on such structures. In this paper, the dynamic elastoplastic analysis of rare earthquakes using the Perform-3D program is carried out based on the project of CCCC Southern Building. The dynamic response of the structure under rare earthquakes and the plasticity of the key components, Development situation, to evaluate the performance of structural earthquake.