北京麗澤商務(wù)區(qū)鼎興大廈結(jié)構(gòu)設(shè)計(jì)
位立強(qiáng)，王志剛，周文源，衛(wèi)東，張徐，單瑞增，魏勇，方云飛
- 摘 要
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（北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045）
［摘要］北京麗澤商務(wù)區(qū)鼎興大廈由A，B座塔樓和A，B區(qū)裙房四部分組成，其中A，B座塔樓結(jié)構(gòu)高度分別為137.4，118.8m。A座塔樓采用由型鋼混凝土框架鋼筋混凝土核心筒組成的框架-核心筒混合結(jié)構(gòu)體系，B座塔樓采用鋼筋混凝土框架-核心筒結(jié)構(gòu)體系，A區(qū)裙房與B區(qū)裙房在2層設(shè)連廊相連。2座塔樓和裙房均采用了天然地基，通過對(duì)地基基礎(chǔ)進(jìn)行細(xì)致的差異沉降計(jì)算，充分利用了較好的地基持力層。針對(duì)A座塔樓采用SATWE，MIDAS/Building軟件進(jìn)行彈性反應(yīng)譜分析，補(bǔ)充了彈性時(shí)程分析以及靜力彈塑性分析。采用MIDAS/Gen軟件計(jì)算各層大懸挑結(jié)構(gòu)在豎向地震作用下的反應(yīng)，提出了結(jié)構(gòu)改進(jìn)措施和設(shè)計(jì)思路。對(duì)連廊鋼桁架的承載力、變形以及舒適度等指標(biāo)進(jìn)行驗(yàn)算，結(jié)果表明各項(xiàng)指標(biāo)滿足規(guī)范要求。最后依據(jù)連廊滑動(dòng)鉸支座在設(shè)防地震作用下的反力和罕遇地震作用下的位移進(jìn)行支座設(shè)計(jì)。［關(guān)鍵詞］差異沉降; 靜力彈塑性; 懸挑結(jié)構(gòu); 豎向地震; 連廊中圖分類號(hào)：TU973+.14 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)18-0013-06
Structural design of Dingxing building in Lize Business District in BeijingWei Liqiang, Wang Zhigang, Zhou Wenyuan, Wei Dong, Zhang Xu, Shan Ruizeng, Wei Yong, Fang Yunfei（Beijing Institute of Architectural Design, Beijing 100045, China）Abstract: Dingxing building in Lize Business District of Beijing is composed of tower A and B, podium A and B. The structural heights of tower A and B are 137.4m and 118.8m respectively. Tower A adopts steel reinforced concrete frame-reinforced concrete core wall system, while tower B adopts reinforced concrete frame-core wall system. Podium A and B are connected by a corridor located in the 2nd floor. Natural foundation is used under the two towers and podiums. Detailed calculation of the foundation′s differential settlement was carried out in order to take full advantage of the bearing stratum. Programs of SATWE and MIDAS/Building were applied to tower A to carry out the elastic response spectra analysis. Both elastic time-history analysis and Pushover analysis were accomplished. Under vertical earthquake, MIDAS/Gen software was used to calculate the reaction of the cantilever structure with cantilever conditions on each floor. Improvement measures and design method were proposed. The bearing capacity, deformation and comfort for corridor steel truss were checked. Results show that all indexes can meet code requirements. Sliding hinge supports of the corridor were designed based both on reaction forces under fortification earthquake and displacements under rare earthquake.Keywords: differential settlement; Pushover; cantilever structure; vertical earthquake; corridor
作者簡(jiǎn)介：位立強(qiáng)，碩士，工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：121989959@qq.com。
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