摘要
阐述了对一种SMA-FPB的优化设计过程及试验情况,并验证了其可行性。首先对丝材进行了单轴拉伸试验,确保了其具有优秀的滞回性能,随后对搭载该种丝材的SMA-FPB分别以位移幅值、丝材数量、竖向压力、加载频率和循环周数为单因素变量,进行了滞回性能试验,比较并分析了SMA-FPB的等效刚度、单位循环耗能、等效阻尼比等力学性能。试验表明,该种SMA-FPB具有优秀的减震耗能能力和良好的自适应性,在多种工况下均有着稳定的力学表现和独特饱满的滞回曲线。
This paper describes the optimization design process and test of a SMA-FPB,and verifies its feasibility.Firstly,the uniaxial tensile test was carried out to ensure the excellent hysteretic performance of SMA-FPB.Then,the hysteretic performance of SMA-FPB with this kind of wire was tested with displacement amplitude,wire number,vertical pressure,loading frequency and cycle number as single factor variables.The equivalent stiffness,energy consumption per cycle and equivalent damping ratio of sma-fpb were compared and analyzed The experimental results show that the SMA-FPB has excellent shock absorption and energy dissipation capacity,good adaptability,stable mechanical performance and unique full hysteretic curve under various working conditions.
作者
庄鹏
孙仕琦
ZHUANG Peng;SUN Shiqi(School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing University of Civil Engineering and Architecture Beijing Advanced Innovation Center for Future Urban Design,Beijing 100044,China;Beijing University of Civil Engineering and Architecture Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials,Beijing 100044,China)
出处
《建筑结构》
CSCD
北大核心
2021年第S01期849-855,共7页
Building Structure
基金
北京市自然科学基金资助项目(8182016)
北京建筑大学北京未来城市设计高精尖创新中心资助项目(UDC2016030200)
北京建筑大学高校基本科研业务费专项资金资助项目(X18150)
