天津某體型收進(jìn)超高層項(xiàng)目結(jié)構(gòu)設(shè)計(jì)
姚建鋒，侯悅琪，吳仕超，劉鋼
- 摘 要
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（奧雅納工程顧問，上海 200031）［摘要］天津恒富大廈超高層項(xiàng)目結(jié)構(gòu)高396.5m。塔樓體型的多次收進(jìn)，導(dǎo)致結(jié)構(gòu)存在沿豎向剛度突變、受力集中、上部側(cè)向變形不易控制等設(shè)計(jì)難點(diǎn)。結(jié)合塔樓建筑超高、多功能性、體型收進(jìn)的三大特點(diǎn)，闡述其結(jié)構(gòu)體系（框架-核心筒+腰桁架+下部巨型斜撐+上部密柱+局部伸臂桁架）的確定、構(gòu)件材料和類型的選擇、抗震措施的采用等主要設(shè)計(jì)問題；并介紹了包括施工模擬及收縮徐變分析、罕遇地震彈塑性時(shí)程分析在內(nèi)的塔樓結(jié)構(gòu)模型分析情況，以驗(yàn)證設(shè)計(jì)的合理性和安全性。［關(guān)鍵詞］超高層建筑; 體型收進(jìn); 混合結(jié)構(gòu); 施工模擬分析; 彈塑性時(shí)程分析中圖分類號(hào)：TU398+.2 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2014)24-0025-06Structural design of a super high-rise building with setback shape in TianjinYao Jianfeng, Hou Yueqi, Wu Shichao, Liu Gang（Arup, Shanghai 200031, China）Abstract: Tianjin Hengfu Building soars up to 396.5 meters height which is a super high-rise building. This tower is featured by multiple setbacks in shape, which induces to design difficulties such as vertical stiffness mutation, stress concentration and extensive lateral displacement at top. Associating with three characteristics of extraordinary height, multi usages and setback shape, the following design focuses were illustrated including the selection of structural system (frame-core wall+belt truss+lower mega brace+upper close column+local outrigger), member materials and types selection and seismic measurements. Construction simulation analysis, concrete shrinkage and creek analysis and elasto-plastic time-history analysis under the rare earthquake were employed to verify the rationality and safety of the design.Keywords: super high-rise building; setback shape; mixed structure; construction simulation analysis; elasto-plastic time-history analysis作者簡介：姚建鋒，碩士，工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：jian-feng.yao@arup.com。
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