(东南大学建筑设计研究院有限公司， 南京 210096)

［摘要］以济南大学工科综合楼为工程背景，对复杂高层角对称弱连接双塔结构进行了动力特性分析、弹性时程分析和弹塑性时程分析，并对弱连接体及其支座进行了分析和研究。结果表明，在水平地震作用下，弱连接体与两端角对称塔楼的变形难以协调，对双塔结构进行了包络计算及设计；连接体滑动支座位移量满足罕遇地震作用下的位移要求；连接体竖向振动加速度和自振频率满足正常使用舒适度要求。 

［关键词］复杂高层建筑；双塔结构；弱连接；滑动支座；钢连廊

中图分类号：TU375-4 文献标识码：A文章编号：1002-848X(2021)20-0028-05

Analysis and design of a complex high-rise azimuthally symmetrial twin-tower structure with weak connection 

LIU  Jingsong,  LU  Fengyong,  SUN  Xun,  SUN  Feng 

(Architects and Engineers Co., Ltd. of Southeast University, Nanjing 210096， China) 

Abstract: Taking Engineering Complex Building of Jinan University as engineering background，dynamic characteristic analysis，elastic time-history analysis and elastic-plastic time-history analysis were conducted of azimuthally symmetrial twin-tower complex high-rise structure with weak connection, and the connective structure and its supports were studied. Results show that it is difficult to coordinate the deformation of the weak connecting structure and the azimuthally symmetrical twin-tower structure under the action of horizontal seismic force, so it is necessary to conduct envelope calculation and design of the twin-tower structure. The displacement of the sliding bearing of the connector meets the displacement requirements under rare earthquake. The vertical vibration acceleration and natural vibration frequency of the connector meet the requirements of normal use comfort. 

Keywords:complex high-rise building； twin-tower structure； weak connection； sliding bearing; steel corridor

作者简介：刘劲松，博士，高级工程师，Email：liu.jin.s@163.com。