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胡青松1，  潘東輝2
(1邁進(jìn)建筑工程設(shè)計(jì)有限公司，深圳518033；2東莞理工學(xué)院，東莞523808)

[摘要] 無(wú)錫恒隆廣場(chǎng)塔樓屬于特別不規(guī)則的復(fù)雜的型鋼混凝土框架．核心筒結(jié)構(gòu)，結(jié)構(gòu)存在開(kāi)洞面積超過(guò)50%的平面不規(guī)則，首5層層高較大帶來(lái)的豎向剛度和承載力不規(guī)則，結(jié)構(gòu)還屬于帶加強(qiáng)層的復(fù)雜結(jié)構(gòu)。針對(duì)不規(guī)則結(jié)構(gòu)采用了相應(yīng)的設(shè)計(jì)對(duì)策，并對(duì)該塔樓結(jié)構(gòu)進(jìn)行罕遇地震下的動(dòng)力彈塑性分析，計(jì)算結(jié)果表明層間位移角符合規(guī)范限值，構(gòu)件狀況符合預(yù)設(shè)性能的要求，結(jié)構(gòu)表現(xiàn)出受限制的彈塑性狀態(tài)，并滿足預(yù)設(shè)的抗震性能要求。
[關(guān)鍵詞] 超限；超高層；罕遇地震；動(dòng)力彈塑性；性能
中圖分類號(hào)：TU398.7    文獻(xiàn)標(biāo)識(shí)碼：A    文章編號(hào)：1002 -848X( 2012) S2 -0065 -07

Second seismic system analysis of Wuxi Henglong Square tower under the rare earthquake
Hu Qingsongl, Pan Donghuj2
(1 Meinhardt Group, Shenzhen 518033, China; 2 Dongguan University of Technology, Dongguan 523808, China)

Abstract: The tower of Wuxi Henglong Square, with SRC frame-tube structural system have several characteristics, including big openings, vertical stiffness irregularity and shear capacity irregularity, beyond code linuts. Rigid outrigger for lateral drift control lead to the complex structural system of the seismic code. Seismic enhancement strategies are chosen for the irregularity and time history analysis are performed with the rare seismic input. The analysis shows that story drift is below code linut and the lateral displacements of the inelastic story display a restricted yielding mechanism. The behavior of the irregular complex structure meets specified performance.
Keywords: beyond code limit; high-rise building; rare earthquake; performance