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（1 中衡設(shè)計集團股份有限公司, 蘇州 215021；2 江蘇省生態(tài)建筑與復雜結(jié)構(gòu)工程技術(shù)研究中心, 蘇州 215021）
［摘要］蘇州環(huán)貿(mào)廣場塔樓為超限高層結(jié)構(gòu)，基于PERFORM-3D軟件，采用彈塑性時程分析方法對結(jié)構(gòu)在罕遇地震作用下的抗震性能進行了評估，分析結(jié)果表明結(jié)構(gòu)整體損傷處于輕度到中度之間。同時將PERFORM-3D軟件計算結(jié)果與SAUSAGE軟件的彈塑性分析結(jié)果進行對比，表明兩個軟件的分析結(jié)果中宏觀指標較為接近，構(gòu)件損傷指標具有一定差異，同時從阻尼模型、材料本構(gòu)、單元模型等方面探討了兩個軟件分析結(jié)果的異同點及可能原因。同時參考美國基于性能的高層建筑抗震設(shè)計準則中建議的計算參數(shù)，調(diào)整力學模型參數(shù)并進行彈塑性時程分析，與PERFORM-3D軟件計算結(jié)果進行了對比，分析結(jié)果表明同時減小阻尼比和活荷載組合值系數(shù)會增加結(jié)構(gòu)頂點位移幅值。
［關(guān)鍵詞］蘇州環(huán)貿(mào)廣場； 超限高層； 動力彈塑性時程分析； 抗震性能； PERFORM-3D； SAUSAGE
中圖分類號：TU375文獻標識碼：A文章編號：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
作者簡介：朱尋焱，碩士，工程師，一級注冊結(jié)構(gòu)工程師，Email：zhuxunyan@artsgroup.cn。
