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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]怡亨當(dāng)代藝術(shù)會(huì)館項(xiàng)目為大跨度復(fù)雜連體結(jié)構(gòu),地上部分由兩棟塔樓及兩個(gè)空中連廊組成。兩棟塔樓均為單跨結(jié)構(gòu),在7~9層、15~17層分別設(shè)有3層高連體結(jié)構(gòu),將兩棟塔樓連為一體,使塔樓和連廊共同受力、共同工作。上連廊主要受力體系由兩道連接于塔樓之間的兩道空腹桁架組成,跨度約為38m;下連廊與上連廊相比,體型基本一致,但向外旋轉(zhuǎn)了9°左右。根據(jù)風(fēng)洞試驗(yàn)數(shù)據(jù),對整體結(jié)構(gòu)計(jì)算分析并取包絡(luò)進(jìn)行設(shè)計(jì),對整體結(jié)構(gòu)進(jìn)行了小震、中震、大震等多工況下靜力分析及罕遇地震作用下的彈塑性時(shí)程分析,對關(guān)鍵復(fù)雜節(jié)點(diǎn)進(jìn)行了節(jié)點(diǎn)應(yīng)力分析,結(jié)果表明結(jié)構(gòu)具有良好的抗震性能。
[關(guān)鍵詞]怡亨當(dāng)代藝術(shù)會(huì)館; 大跨度復(fù)雜連體結(jié)構(gòu); 空腹桁架; 抗震性能化分析
中圖分類號:TU318文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2018)20-0102-06
Structural design of Yiheng Modern Art Centre
Zhao Boyao, Xu Fujiang, Sheng Ping, Feng Yan, Zhang Moxun
(Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:Yiheng Modern Art Centre is a large-span complex conjoined structure with two towers and two air corridors. Both towers are single-span structures. There are two three-floor-height conjoined structures in 7~9 floors and 15~17 floors respectively, connecting two towers together. Two towers and two air corridors work together. The main force system of the upper corridor consists of two open-web trusses connected between the towers, with a span of about 38m. Compared with the upper corridor, the lower corridors are basically the same, but rotate outwards by about 9°. According to the wind tunnel test data, the overall structure was calculated and analyzed, and the envelope design was conducted. The static analysis of the whole structure under frequent earthquake, fortification earthquake and rare earthquake was conducted as well as elastic-plastic time-history analysis of the whole structure under rare earthquake. The joint stress analysis of key complex nodes was carried out. The results show that the structure has good seismic performance.
Keywords:Yiheng Modern Art Centre; large-span complex conjoined structure; open-web truss; performance-based seismic analysis
作者簡介:趙博堯,碩士,高級工程師,Email:zhaoboyao@biad.com.cn。
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