高位大跨度连体结构隔震减振多性能目标设计  

Multiple-performance objective design of isolated large-span structure connecting high-rise buildings

作　　者：王建[1,2] 朱忠义[3] 周忠发[3] 杨育臣[3] 欧进萍[1,2] WANG Jian;ZHU Zhongyi;ZHOU Zhongfa;YANG Yuchen;OU Jinping(Key Lab of Structures Dynamic Behavior and Control of the Ministry of Education,Harbin Institute of Technology,Harbin 150090,China;Key Lab of Smart Prevention and Mitigation of Civil Engineering Disaster of the Ministry of Industry and Information Technology,Harbin Institute of Technology,Harbin 150090,China;Beijing Institute of Architectural Design,Beijing 100045,China)

机构地区：[1]哈尔滨工业大学结构工程灾变与控制教育部重点实验室,黑龙江哈尔滨150090 [2]哈尔滨工业大学土木工程智能防灾减灾工业和信息化部重点实验室,黑龙江哈尔滨150090 [3]北京市建筑设计研究院有限公司,北京100045

出　　处：《建筑结构学报》2023年第4期54-62,86,共10页Journal of Building Structures

基　　金：国家自然科学基金项目(51678210)。

摘　　要：针对沿海地区某高位大跨度连体结构在风荷载和水平地震作用下固定铰连接内力大和受力复杂的问题,提出了摩擦摆支座与切换阻尼器的组合隔震减振措施,试验研究了由黏滞阻尼器和液压阀组成切换阻尼器的阻尼力特性,开展了高位大跨度结构的隔震减振多性能目标设计方法研究。结果表明:按照调谐减振系统的最优频率确定的高位大跨度结构隔震频率使得塔楼的位移响应最小;切换阻尼器实现了速度相关型和位移相关型两种阻尼力;与摩擦摆支座的摩擦力相比,切换阻尼器的位移相关型阻尼力不受风荷载影响,滑动位移的控制效果更好;切换阻尼器的速度相关型阻尼力与摩擦摆支座的摩擦力共同实现了高位大跨度连体结构的抗震性能目标。To solve the problems of large connecting force and complexity of large-span structure connecting high-rise buildings in coastal areas under wind and earthquake loads,a hybrid isolation technology based on the friction pendulum bearing and switchable fluid damper was proposed.The damping force characteristic of switchable fluid damper,combining viscous damper and hydraulic valve,was experimentally studied.And a multi-performance objective design method for large-span structure connecting high-rise buildings was proposed in this paper.The results demonstrate that the isolation frequency of the large-span structure should be taken as the optimal frequency of the tuned vibration system to minimize the displacement of high-rise buildings.The switchable damper achieves velocity-dependent damping force and displacement-dependent damping force.Compared with the friction force of the friction pendulum bearing,the displacement-dependent damping force of switchable fluid damper is not affected by the wind load,and the control effect on sliding displacement is better.The velocity-dependent damping force is employed to achieve the seismic performance in cooperation with the friction force of the friction pendulum bearing.

关 键 词：高位大跨度结构 组合隔震减振 切换阻尼器 多性能目标设计 

分 类 号：TU375.4[建筑科学—结构工程] TU352