基于OpenSees的自复位型SMA阻尼器对偏心框架结构振动控制的理论研究  

Theoretical investigation into the vibration control of eccentric frame structure with re-centring SMA damper in OpenSees

作　　者：姚会哲[1,2] 任文杰[1,2] 乔金丽 陈向上[1,2] 

机构地区：[1]河北工业大学土木工程学院,天津300401 [2]河北省土木工程技术研究中心,天津300401

出　　处：《河北工业大学学报》2013年第6期88-92,共5页Journal of Hebei University of Technology

基　　金：国家自然科学基金(50978081);河北省高校百名优秀创新人才支持计划(CPRC011)

摘　　要：基于OpenSees软件平台建立了超弹性形状记忆合金(Shape memory alloy,简称SMA)的有限元本构模型,并对其进行二次开发,以模拟材料的双向力学行为;建立了自复位型SMA阻尼器的有限元力学模型;数值研究了阻尼器控制下的一六层偏心框架结构的振动响应,结果表明:阻尼器可有效抑制结构的平动位移和扭转角响应,但会增加结构的加速度.Constitutive model of finite element of super elastic shape memory alloy(SMA) is established in OpenSees. Bidirectional mechanical behavior of SMA material is simulated by re-development; mechanical model of finite element of re-centring SMA damper is established; vibration response of a six-storey eccentric frame structure installed re-centring SMA damper is investigated by numerical method. The results prove that re-centring SMA damper can restrain translationtorsion coupled response of structure effectively. However, it can increase acceleration of the structure.

关 键 词：形状记忆合金 OPENSEES 自复位型阻尼器 偏心框架 振动控制 

分 类 号：T-55[一般工业技术]