銀川某鋼管混凝土框架-鋼支撐體系塔樓結(jié)構(gòu)設(shè)計(jì)
劉軍1，2，馮春雷2
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（1 東南大學(xué)土木工程學(xué)院， 南京 210096; 2 紫杉建筑設(shè)計(jì)股份有限公司， 昆明 650051）
［摘要］銀川某超高層建筑塔樓的建筑高度為219.3m，采用鋼管混凝土框架-鋼支撐結(jié)構(gòu)體系，并采用了屈曲約束支撐作為消能減震措施。主要介紹了本工程結(jié)構(gòu)體系和抗側(cè)力體系的確定、屋頂穹拱設(shè)計(jì)、斜柱分析及抗震加強(qiáng)措施，并采用YJK，MIDAS/Gen軟件對(duì)塔樓進(jìn)行了彈性反應(yīng)譜分析，補(bǔ)充了彈性時(shí)程分析以及動(dòng)力彈塑性分析。結(jié)果顯示，結(jié)構(gòu)各項(xiàng)指標(biāo)均能滿足規(guī)范要求，能夠?qū)崿F(xiàn)“大震不倒”的抗震設(shè)防目標(biāo)。［關(guān)鍵詞］超高層建筑; 鋼管混凝土; 超限結(jié)構(gòu); 消能減震; 屈曲約束支撐中圖分類號(hào)：TU318 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2016)08-0013-05
Structural design of a tower with CFST frame-steel brace system in YinchuanLiu Jun1,2, Feng Chunlei2(1 School of Civil Engineering, Southeast University, Nanjing 210096, China; 2 Taxus Architects Design Co., Ltd., Kunming 650051, China)Abstract: A super high-rise building in Yinchuan has architectural height of 219.3m and adopts structural system of CFST frame-steel brace with energy dissipation measures of buckling-restrained braces. The structural system determination, lateral force resistance system determination, roof vault design, inclined column analysis and seismic strengthening measures were mainly introduced. Programs of YJK and MIDAS/Gen were applied to carry out the elastic response spectra analyses. Both elastic time-history analysis and dynamic elastic-plastic analysis were accomplished. The results show that all performances of the structure can meet the requirements of codes, and the seismic performance target of "not collapse under the rare earthquake"can be fulfilled.Keywords: super high-rise building; concrete-filled steel tube (CFST); out-of-code structure; energy dissipation; buckling-restrained brace
作者簡(jiǎn)介：劉軍，碩士，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：21594340@qq.com。
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