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中文摘要：
上海国际设计中心建筑造型独特,采用不等高双塔连体结构。其平面和立面规则性均超限,不满足现行抗震设计规范的要求。主、副塔楼的高度和刚度相差显著,结构的扭转反应明显。采用NOSACAD有限元程序建立整体结构分析模型,对结构进行7度罕遇烈度下的弹塑性时程分析。计算结果表明,小震情况下,结构构件未出现损坏;大震情况下,结构最大层间位移角为1/112,满足规范要求。筒体构件损坏顺序和分布较为合理,能在一定程度上耗散地震输入能量。
英文摘要：
The Shanghai International Design Center（SHIDC） is unique in architectural modeling and has used different-height twin-tower hybrid system.SHIDC is irregular in layout and in elevation,which does not meet the requirement of the present design code.The calculation model of the overall structure is established by NOSACAD.Because of the different height and stiffness between the main tower and the annex tower,the torsion seismic vibration is obvious.The elasto-plastic time history analysis was carried out under the frequent and rare intensity of 7 degree earthquake.The results show that,under the frequent earthquake,there is no damaged element,and under the rare earthquake,the maximum inter story drift of the complex building is 1/112,which meet the seismic design requirement of Chinese code.The order and distribution of damages on components of the tubes are reasonable,which can dissipate some dynamic energy.
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