建筑结构

2015, v.45;No.414(18) 35-40

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鄂尔多斯广场南塔楼结构抗震设计
Structural seismic design on the South Tower of Erdos Square

卫东;位立强;周文源;张徐;王志刚;李华峰;
Wei Dong;Wei Liqiang;Zhou Wenyuan;Zhang Xu;Wang Zhigang;Li Huafeng;Beijing Institute of Architectural Design;

摘要(Abstract):

鄂尔多斯广场南塔楼结构高166.7m,采用钢管混凝土柱框架+钢筋混凝土核心筒+环带桁架结构体系。在高区避难层设置环带桁架作为结构加强层,提高了结构整体抗侧刚度。介绍本工程超限内容、抗震设防目标、结构体系选型及特点。采用SATWE和MIDAS/Building两种软件对结构进行了小震弹性对比分析,采用ABAQUS软件对结构进行了大震弹塑性时程分析,并依据分析结果,对结构各重要部位进行了加强,使结构实现抗震性能目标并达到了多道抗震防线的设计要求。
The structural height of South Tower of Erdos Square is 166. 7m,and structural system of concrete-filled steel tube column frame,reinforced concrete core wall and belt truss is adopted. To enhance the lateral-force-resisting stiffness,belt trusses are used at refuge story in the high zone as the structural strengthening layer. The out-of-code items,seismic fortification goals and structural system selection and features were introduced. Elasticity analyses under frequent earthquake were carried out by two different kinds of finite-element software SATWE and MIDAS / Building. Elastic-plastic time-history analysis under the rare earthquake was carried out by software ABAQUS. According to the analysis results,the critical parts were strengthened to implement the seismic performance objectives and multi-line to defend earthquake.

关键词(KeyWords): 超高层建筑;环带桁架;混合结构;抗震性能设计;弹塑性分析
super high-rise building;belt truss;mixed structure;performance-based seismic design;elastic-plastic analysis

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作者(Author): 卫东;位立强;周文源;张徐;王志刚;李华峰;
Wei Dong;Wei Liqiang;Zhou Wenyuan;Zhang Xu;Wang Zhigang;Li Huafeng;Beijing Institute of Architectural Design;

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DOI: 10.19701/j.jzjg.2015.18.007

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