（1 中衡设计集团股份有限公司, 苏州 215021；2 江苏省生态建筑与复杂结构工程技术研究中心, 苏州 215021）

［摘要］苏州环贸广场塔楼为超限高层结构，基于PERFORM-3D软件，采用弹塑性时程分析方法对结构在罕遇地震作用下的抗震性能进行了评估，分析结果表明结构整体损伤处于轻度到中度之间。同时将PERFORM-3D软件计算结果与SAUSAGE软件的弹塑性分析结果进行对比，表明两个软件的分析结果中宏观指标较为接近，构件损伤指标具有一定差异，同时从阻尼模型、材料本构、单元模型等方面探讨了两个软件分析结果的异同点及可能原因。同时参考美国基于性能的高层建筑抗震设计准则中建议的计算参数，调整力学模型参数并进行弹塑性时程分析，与PERFORM-3D软件计算结果进行了对比，分析结果表明同时减小阻尼比和活荷载组合值系数会增加结构顶点位移幅值。

［关键词］苏州环贸广场； 超限高层； 动力弹塑性时程分析； 抗震性能； PERFORM-3D； SAUSAGE

中图分类号：TU375文献标识码：A文章编号：1002-848X(2019)01-0095-05

Dynamic elasto-plastic analysis on structure of Suzhou Huanmao Plaza Project Tower 

Zhu Xunyan1,2， Yang Lülei1,2， Wang Gan1,2， Wang Yixiang1,2

(1 ARTS Group Co.,  Ltd.,  Suzhou 215021, China;2 Jiangsu Engineering Institute of Ecological Building & Complex Structure, Suzhou 215021, China)

Abstract:Suzhou Huanmao Plaza Project Tower is an over-limit high-rise structure. Based on the PERFORM-3D software, the elastic-plastic time history analysis method was used to evaluate the seismic performance of the structure under rare earthquakes.  The analysis results show that the overall damage of the structure is between mild to moderate. The results of elastoplastic analysis using SAUSAGE software and PREFORM\|3D software were compared, it is shown that the macroscopic indicators of the two softwares are close to each other, and the component damage index has some differences. At the same time, the similarities and differences between the two software analysis results and possible causes were discussed from the aspects of damping model, material constitutive and unit model. And referring to the calculation parameters proposed in the US Performance-based seismic design guidelines for tall buildings, the mechanical model parameters were adjusted and the elastic-plastic time history analysis was performed. The results were compared with the PERFORM-3D calculation results, the analysis results show that reducing the damping ratio and live load combination coefficient simultaneously increases the amplitude of the structure apex displacement.

Keywords:Suzhou Huanmao Plaza; super high-rise structure; dynamic elastic-plastic time history analysis; seismic performance; PERFORM-3D; SAUSAGE

作者简介：朱寻焱，硕士，工程师，一级注册结构工程师，Email：zhuxunyan@artsgroup.cn。