黄忠海^1,2，  廖耘^1,2，  王远利^1,2，  曹春华^1,2，  李志山^1,2
    （1 广州容柏生建筑结构设计事务所，广州 510170； 2 广州数力工程顾问有限公司，广州 510170）

[摘要] 深圳平安国际金融中心为一栋结构高度达540m的复杂超高层建筑，设计采用了劲性钢筋混凝土核心筒+外围巨型框架+外围巨型支撑+钢伸臂桁架的结构抗侧体系。运用ABAQUS +BEPTA程序，将梁、柱和剪力墙的弹塑性在材料的应力．应变层次上精确模拟，同时考虑结构的几何非线性，采用显式积分的方法，对该结构进行了罕遇地震作用下的弹塑性时程分析，以检验结构在大震作用下的抗震性能。结果表明，计算工程的结构形式具有较高的抗震承载力和延性，基于塑性区模型的弹塑性时程分析是保证结构大震不倒的比较有效和可靠的方法。
[关键词] 平安国际金融中心；超高层建筑；弹塑性时程分析；ABAQUS; BEPTA
中图分类号：TU973    文献标识码：A  文章编号：1002-848X(2011) Sl-0047-06

Elastic-plastic time-history analysis of PINGAN IFG under rare earthquakes
Huang zhonghai^1,2 , Liao Yun^1,2 , Wang Yuanli^1,2 , Cao Chunhua^1,2 , Z. lee^1.2
(1 RBS Architecture Engineer Design Associate, Guangzhou 510170, China; 2 Guangzhou Scientific Computing Consultants Co., Ltd., Guangzhou 510170, China)

Abstract: PINGAN IFG is a 540 meters height composite structure.  Its lateralloads resist system is consist of compositesteel concrete shear wall core, perimeter giant brace-frame and belt truss. Without simplification, nonlinearities of the beam, column and shear wall element are modelled in stress-strain relation level. The explicit method was implemented to integrate the dynamic equations. ABAQUS and BEPTA were used to perform the elastic-plastic time-history analysis under the rare efuthquake load. The seismic performance of the structure was studied. The results show that the structure has sufficient seisrmc capacity and ductility. The goal of collapse prevention under expected rare earthquake is aclueved, and the proposed analysis is reliable and promising.
Keywords: PINCAN IFG; super high-rise building; elastic-plastic time-history analysis; ABAQUS; BEPTA