摘要
乐清总部经济园一期共有7幢塔楼,其中2#~4#楼顶部设有2座4层高的高空大跨钢连廊。2#~4#楼地面以上均为20层,高83.60m,采用现浇钢筋混凝土框架-核心筒结构体系。结构设计难点主要是高空连廊、斜柱转换、大地下室。考虑到连廊跨度和两端塔楼平面布置方式的不同,底部分别采用了2层通高和1层高的转换桁架,余下各层则通过钢立柱形成普通钢框架结构;桁架与塔楼的连接方式也分别采用了柔性连接和刚性连接。并通过静力推覆分析预测连廊两端最大位移差,为支座选型提供依据。针对斜柱转换和大地下室,分别采用了相应构造措施,以确保结构安全可靠。
Two high-position and large-span steel corridors,which both are four-storey high,connect among 2# ~ 4# tower in Yueqing Headquaters economic Park,a total of seven towers. These three towers are 20 stories and 83. 60m high above the ground,and adopt reinforced concrete frame-core tube structure system. Obviously it's difficult to design the highposition corridor,transfer inclined-column,and large basement. According to different spans and different layout of towers on both sides,the height of the transfer truss in the steel corridor is two-storey and one-storey respectively,and flexible and rigid bearing connections are applied. Other stories therefore composite of ordinary steel frame structure. In order to select the bearings,the maximum displacement is determined by push-over analysis. Moreover some structural measures corresponding to these design difficulty adopt to ensure the structure safety.
出处
《建筑结构》
CSCD
北大核心
2013年第S1期162-166,共5页
Building Structure
关键词
高空大跨钢连廊
斜柱
大地下室
连接方式
静力推覆分析
high-position and large-span steel corridors
inclined column
large basement
connection
push-over analysis
