限位U型软钢阻尼器在受控结构中的位置优化  

Optimal Placement of Constrained U-Shaped Soft Steel Damper in Damping Structure

作　　者：杨明飞[1] 王磊[1] 邵浩 沙志平 YANG Mingfei;WANG Lei;SHAO Hao;SHA Zhiping(School of Civil Engineering and Architecture,Anhui University of Science and Technology,Huainan Anhui 232001,China;Structural Design Center of Shanghai,CCDI(Shenzhen),Shanghai 200438,China)

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001 [2]悉地国际设计顾问(深圳)有限公司上海结构设计中心,上海200438

出　　处：《安徽理工大学学报（自然科学版）》2020年第4期13-18,共6页Journal of Anhui University of Science and Technology:Natural Science

基　　金：安徽省高校自然基金重点资助项目(KJ2016A209);安徽理工大学人才引进基金项目(ZY044)。

摘　　要：为了研究限位U型软钢阻尼器对高层混凝土框架结构的减振控制效果,以某十层混凝土框架结构为算例,采用层间位移迭代法、最优二次型性能指标损失量法和普通布置法三种优化布置方法,通过ANSYS对不同优化布置方法下的结构进行非线性时程分析,并以弹性层间位移角限值为目标函数,对该结构阻尼器布置进行最终优化.研究结果表明,在阻尼器数量一定的情况下,各优化布置方法都有一定的减振控制效果,但层间位移迭代法最好;阻尼器位置经最终优化后,结构各层弹性层间位移角明显减小,约30%,且均满足1/550的限值.说明限位U型软钢阻尼器对高层混凝土框架结构具有较好的减振控制效果.In order to study the effect of constrained u-shaped soft steel damper on the vibration control effect of high-rise concrete frame structures,a certain ten-story concrete frame structure is applied as an example with three optimal arrangement methods used,which are sequential search method,the optimal structural quadratic performance index loss method and general arrangement method.The nonlinear history analysis of dampers is done by ANSYS on the various structures arranged with the above optimal methods.And the limit value of the elastic interlayer displacement angle is used as the objective function to get the eventual optimal arrangement of the damper.The research results show that:under the same amount of dampers,each of the optimal arrangement methods has a certain effect of damping control,but the sequential search method is better than others;after the position of the damper is optimized eventually,the elastic interlayer displacement angle of each layer of the structure is significantly reduced by 30%,and both meet the limit of 1/550.It shows that the constrained u-shaped soft steel damper has a great vibration control effect on high-rise concrete frame structure.

关 键 词：限位U型软钢阻尼器 优化布置方法 层间位移迭代法 位置优化 减振控制效果 

分 类 号：TU391[建筑科学—结构工程]