基于ABAQUS的某大底盘双塔楼超高层结构罕遇地震弹塑性时程分析

Elastic-plastic time history analysis under rarely occurred earthquake of a super tall building with twin towers and a large chassis based on ABAQUS

以某塔楼偏置的大底盘双塔楼框架-核心筒超高层结构为分析对象,根据工程特点,制定了罕遇地震下整体位移控制和不同重要程度结构构件的抗震性能目标。采用ABAQUS软件进行了罕遇地震下弹塑性时程分析,得出了整体位移指标和各结构构件性能水准控制结果,同时通过大震震害揭示出了结构薄弱部位,并针对性地优化了结构布置。

The analysis object is a super-tall frame-corewall structure with a large chassis and Twin Towers whose upper tower is offset. According to the engineering characteristics,The seismic performance objectives of overall displacement control and the important degree of different structural components under rarely occurred earthquake are formulated. The ABAQUS software is used for elastic-plastic time history analysis under rarely occurred earthquake, the overall displacement index and each structural component performance level is finally concluded,at the same time,the seismic damages under rarely occurred earthquake reveal the structure weak parts,finally the layout of the structure components was optimized based on this conclusion.