摘要
将大尺寸SMA弹簧与摩擦耗能装置进行组合,形成一种新型SMA弹簧-摩擦阻尼器(SMA spring-friction damper,SFD)。该阻尼器通过滑动摩擦和SMA超弹性协同耗能,满足工程结构对减震装置大位移和大输出力的要求。分别采用簧杆直径为12,16mm的SMA螺旋弹簧,设计2种SFD试件,对其进行往复荷载作用下的滞回性能试验研究。研究SFD在不同加载速率、位移幅值及摩擦板法向力影响下的滞回性能变化规律。研究结果表明,SFD具有良好的耗能能力。
In this article,large size SMA spring and friction energy dissipation device are combined to form a novel SMA spring-friction damper(SFD).The damper consumes energy through sliding friction and superelasticity,which satisfies the requirements of engineering structure for large displacement and large transmission capacity.Two kinds of SFD specimens were designed by using the SMA helical spring with the diameter of 12 mm and 16 mm,and the test of hysteresis performance under the reciprocating load was carried out.The hysteretic behavior of SFD under different loading rate,displacement amplitude and normal force of friction plate is studied.The results show that SFD has good energy dissipation and control capacity.
作者
戢广禹
庄鹏
何骁
JI Guangyu;ZHUANG Peng;HE Xiao(School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)
出处
《施工技术》
CAS
2018年第A04期1135-1139,共5页
Construction Technology
基金
北京市自然科学基金资助项目(8182016)
北京建筑大学高校基本科研业务费专项资金资助项目(X18150)
关键词
减震控制
SMA弹簧-摩擦阻尼器
滞回性能
抗震性能
vibration reduction
SMA spring-friction damper
hysteretic behavior
seismic performance
