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（廣東省建筑設(shè)計(jì)研究院，廣州 510370）

[摘要]  珠海橫琴發(fā)展大廈采用帶巨型轉(zhuǎn)換桁架-鋼框架-支撐筒結(jié)構(gòu)，屬于非常規(guī)結(jié)構(gòu)體系。為平面及豎向不規(guī)則的超限復(fù)雜高層結(jié)構(gòu)。采用MIDAS/GEN和ABAQUS兩種有限元分析軟件進(jìn)行罕遇地震作用下動(dòng)力彈塑性時(shí)程分析，驗(yàn)證其在大震作用下的抗震性能是否滿足預(yù)定的抗震性能目標(biāo)，尋找結(jié)構(gòu)薄弱部位并提出相應(yīng)的加強(qiáng)措施；同時(shí)，研究結(jié)構(gòu)中關(guān)鍵構(gòu)件的塑性損傷和屈服程度，并做出性能評(píng)價(jià)，指導(dǎo)結(jié)構(gòu)設(shè)計(jì)。兩軟件計(jì)算結(jié)果表明，塑性鉸的分布和結(jié)構(gòu)塑性損傷較少，受力性能良好，彈塑性反應(yīng)及破壞機(jī)制符合抗震概念設(shè)計(jì)要求，結(jié)構(gòu)滿足大震下的抗震性能設(shè)計(jì)目標(biāo)。

[關(guān)鍵詞]  超限高層；罕遇地震；動(dòng)力彈塑性時(shí)程分析；塑性損傷

中圖分類號(hào)：TU313.3               文獻(xiàn)標(biāo)識(shí)碼：A             文章編號(hào)：

作者簡介：張連飛，碩士，工程師，445337551@qq.com。

Dynamic elastic-plastic analysis of Zhuhai Hengqin Development Building

Zhang Lianfei，Ou Tong，Tan Jian， Xu Xin

(The Architecture Design and Research Institute of Guangdong Province，Guangzhou510370，China)

Abstract：The huge transfer truss-steel frame-bracing tube structure applied in the Zhuhai Hengqin development building is not a conventional structure in specification, but a complex high-rise Building beyond the code limits with irregularity in plane and vertical direction. MIDAS/GEN and ABAQUS are employed to conduct the dynamic elastic-plastic time history analysis under rare earthquake ，to verify if the requirement of objectives of performance-based seismic design was met, The weak parts of the structure were found out and corresponding strengthening measurements were also given. At the same time, the plastic damage and yielding status of the key members as well as the evaluation of the degree of the plastic damage were carried out，in order to guide the structure design. The results of the two finite element software show that, how little the plastic hinge distributes and how little plastic damage and good mechanical performance, the elastic-plastic response and failure mechanism conform to the structural anti-seismic concept design, the requirement of objectives of performance-based seismic design was met.

Keywords：complex high-rise Building；rare earthquake；dynamic elastic-plastic analysis；plastic damage

參考文獻(xiàn)

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