应用SMA阻尼器的巨型框架悬挂结构减震分析  

Simulation on Seismic Response of Mega-Frame Suspended Structure Using SMA Damper

作　　者：刘海卿[1,2] 王学庆[1] 王锦力[1] 

机构地区：[1]辽宁工程技术大学建筑工程学院,阜新123000 [2]大连理工大学土木水利学院,大连116024

出　　处：《武汉理工大学学报》2010年第9期111-114,144,共5页Journal of Wuhan University of Technology

基　　金：中国博士后科学基金特别资助项目(200801385);辽宁省优秀人才支持计划项目(2008RC24);辽宁省教育厅重点实验室项目(2008S113)

摘　　要：应用形状记忆合金(Shape memory alloy简称SMA)的超弹性和阻尼特性设计了一种新型SMA阻尼器。介绍了这种阻尼器的构造和工作原理;建立了SMA阻尼器的力学分析模型。采用结构动力学有限元方法,分别建立了应用SMA阻尼器控制和无阻尼器控制的巨型框架悬挂结构的三维实体有限元模型,对两种结构体系进行了地震时程分析。结果表明,应用SMA阻尼器控制的结构体系能有效地减小主-子结构的相对和绝对位移、相对和绝对加速度响应。保证了结构的安全性和使用的舒适性,具有很好的减震效果。In this paper a new Shape memory alloy（SMA） damper based hyperelastic and damper properties of SMA is designed.The configuration and operation principle of the SMA damper are presented and the mechanical model of the SMA damper is built.By the structural dynamic finite element method,the 3d solid FE models of Mega-frame suspended structure with and without the control of SMA damper are built and the time history analysis and response spectrum analysis of the two systems under earthquake are carried out.The results show that the application of SMA damper can effectively reduce the relative and absolute displacement and acceleration of the Mega-frame suspended structure and its substructures.Also, the control regularity of the SMA damper for seismic response of Mega-frame suspended structure is further discussed through adjusting the damper value of the SMA damper.

关 键 词：SMA阻尼器 结构控制 地震响应 巨型框架 悬挂结构 

分 类 号：TU352.1[建筑科学—结构工程]