大跨高层连接体建筑结构动力分析
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摘要
本文以上地工贸楼为例对大跨高层连接体建筑进行结构动力分析。连体部分结构由于跨度大,其两侧和主体结构的连接采用主体结构柱上设牛腿的连接方式,其中一侧为铰支座,另一侧为有限值的单向滑动支座,以有效降低温度荷载的影响。本文采用地震反应谱分析和时程分析方法,分析了主体和高位连接体结构的动力特性及结构变形特点。同时对在主体和连接体结构间设置夹层钢板橡胶垫方案进行了计算分析,结果表明采用刚度适宜的夹层钢板橡胶垫,可有效降低结构的动力反应,提高结构的整体性。
Dynamic response analysis of long span connecting structure between buildings was carried out by taking the Shangdi industry commercial building as an example. The connecting structure possessed a long span, the point supporting method to connect main building and connected structure was adopted by means of cantilever brackets that set up on the column of the main buildings. There were gliding support on the one side of connected structure and hinge support on the other side. By using seismic response spectrum and time history analysis method, the structure dynamic characteristics and deformation properties of the main building and connected structure were analyzed. On the same time, by adding laminated steel and rubber pads between main building and connected structure in vertical direction, the whole structure was recalculated and analyzed. It has been showed that the integrity of the structure can be improved and dynamic response of the structure is reduced when structure adopts laminated steel and rubber pads with appropriate stiffness.
Dynamic response analysis of long span connecting structure between buildings was carried out by taking the Shangdi industry commercial building as an example. The connecting structure possessed a long span, the point supporting method to connect main building and connected structure was adopted by means of cantilever brackets that set up on the column of the main buildings. There were gliding support on the one side of connected structure and hinge support on the other side. By using seismic response spectrum and time history analysis method, the structure dynamic characteristics and deformation properties of the main building and connected structure were analyzed. On the same time, by adding laminated steel and rubber pads between main building and connected structure in vertical direction, the whole structure was recalculated and analyzed. It has been showed that the integrity of the structure can be improved and dynamic response of the structure is reduced when structure adopts laminated steel and rubber pads with appropriate stiffness.
引文
1犦薛彦涛.底部整体上部多塔结构地震反应分析犤J犦.建筑结构学报,1989,10(3):21-28.
2犦范重.带有双塔楼高层建筑结构动力特性分析犤J犦.建筑结构学报,1996,17(6):11-17.
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4犦杨维垣.大底盘双塔连体高层建筑神舟大厦结构设计犤J犦.工业建筑,2001,(9):20-22.
5犦包世华.大底盘多塔楼连体结构的受力分析犤J犦.建筑结构,1996,(11):7-13.
6犦娄宇.大底盘上双塔和连体高层建筑的振动分析犤J犦.建筑结构,1999,(4):9-12.
7犦黄坤耀.非对称双塔结构的动力特性和地震响应分析犤J犦.工业建筑,2001,(8):27-29.
8犦周福霖.工程结构减震控制犤M犦.北京:地震出版社,1997.
2犦范重.带有双塔楼高层建筑结构动力特性分析犤J犦.建筑结构学报,1996,17(6):11-17.
3犦黄坤耀.连体刚度对双塔连体高层建筑地震响应的影响犤J犦.建筑结构学报,2001,22(3):21-26.
4犦杨维垣.大底盘双塔连体高层建筑神舟大厦结构设计犤J犦.工业建筑,2001,(9):20-22.
5犦包世华.大底盘多塔楼连体结构的受力分析犤J犦.建筑结构,1996,(11):7-13.
6犦娄宇.大底盘上双塔和连体高层建筑的振动分析犤J犦.建筑结构,1999,(4):9-12.
7犦黄坤耀.非对称双塔结构的动力特性和地震响应分析犤J犦.工业建筑,2001,(8):27-29.
8犦周福霖.工程结构减震控制犤M犦.北京:地震出版社,1997.
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