摘要
上海图书馆东馆结构跨度和外围悬挑均较大,柱网尺寸为16.8m×16.8m,外围最大悬挑16.8m。屋顶设置悬挂桁架,并通过吊柱悬挂下部5层悬挑区荷载。介绍了结构体系特点,并结合建筑净高、外观及设备要求,充分利用结构特点,合理对剪力墙开洞,对实腹梁进行开洞形成空腹桁架框架梁,实现建筑与结构完美统一。对一个柱网范围楼面梁布置方式进行研究,对结构进行抗震性能化设计,得到屋顶钢桁架、吊柱及剪力墙抗震性能,并对吊柱断裂进行分析,通过设置TMD技术可有效解决悬挑区楼面振动舒适度问题。
The structure span and peripheral cantilever of Shanghai East Library are relatively large.The size of the column net is 16.8m×16.8m,and the largest cantilever is 16.8m.The roof is provided with a suspension truss and the loads on lower 5 layers of cantilevered area are suspended by the suspension columns.The characteristics of the structural system were introduced.Considering the requirements of net building height,appearance and equipment,the structural features were fully used to reasonably open holes on the shear wall and open the holes on the solid web beams to form the open web truss frame beam to achieve perfect integration of the building and structure.The layout of the floor beams in a column grid was studied,and the seismic performance design of the structure was carried out.The seismic behavior of the roof steel truss,the suspension column and the shear wall was obtained,and the fracture of the suspension column was analyzed.The TMD technology could effectively solve the problem of vibration comfort degree of the floor in the cantilever area.
作者
李亚明
李瑞雄
贾水钟
姜琦
肖魁
Li Yaming;Li Ruixiong;Jia Shuizhong;Jiang Qi;Xiao Kui(Science&Technology Comission of Shanghai Municipality,Shanghai Institute of Architectural Design and Research Co.,Ltd.,Shanghai,200041,China;Shanghai Key Laboratory of Engineering Structure Safety,SRIBS,Shanghai Research Institute of Building Sciences,Shanghai 200032,China)
出处
《建筑结构》
CSCD
北大核心
2019年第23期26-32,共7页
Building Structure
关键词
上海图书馆东馆
大悬挑结构
悬挂桁架
抗震性能化分析
空腹桁架框架梁
舒适度
Shanghai East Library
large cantilever structure
suspension truss
performance-based seismic design
open web truss frame beam
comfort degree
