预应变SMA⁃TMD对钢框架结构抗震性能影响研究  

Study on effect of pre⁃strained SMA⁃TMD on seismic performance of steel frame structures

作　　者：姜子钦[1,2] 刘澜涛 黄浩宇 王伟[4] 韩伟[1] JIANG Ziqin;LIU Lantao;HUANG Haoyu;WANG Wei;HAN Wei(College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100124,China;Beijing Engineering Research Center of High-Rise and Large-Span Prestressed Steel Structure,Beijing University of Technology,Beijing 100124,China;School of Engineering,Newcastle University,Newcastle Upon Tyne NE17RU,UK;State Key Laboratory of Disaster Reduction in Civil Engineering,Tongji University,Shanghai 200092,China)

机构地区：[1]北京工业大学城市建设学部,北京100124 [2]北京工业大学北京市高层和大跨度预应力钢结构工程技术研究中心,北京100124 [3]纽卡斯尔大学工程学院,纽卡斯尔NEI7RU [4]同济大学土木工程防灾减灾全国重点实验室,上海200092

出　　处：《建筑结构》2024年第20期48-52,128,共6页Building Structure

基　　金：国家自然科学基金资助项目(52078013)。

摘　　要：针对钢结构在地震激励下加速度响应过大的问题,介绍了一种将形状记忆合金(SMA)应用到调谐质量阻尼器(TMD)装置中的解决方案,利用SMA的特性实现有效的自复位和稳定的阻尼,将预应变SMA棒应用到TMD中,提高装置的阻尼性能。通过试验测试及有限元模拟,研究安装施加预应变SMA-TMD的钢框架抗震性能。结果表明:预应变SMA棒不仅有助于自复位,而且还能大大提高SMA-TMD的等效黏滞阻尼比;经过优化的SMA-TMD装置可以大大降低钢框架的地震动响应,并加快地震能量消耗。Aiming at the problem of excessive acceleration response of steel structure under seismic excitation,a solution of applying shape memory alloy(SMA)to tuned mass damper(TMD)device was introduced.The characteristics of SMA were used to achieve effective self-centering and stable damping.The pre-strained SMA rod was applied to TMD to improve the damping performance of the device.Through experimental test and finite element simulation,the seismic performance of steel frame with pre-strained SMA-TMD was studied.The results show that the pre-strained SMA rod is not only helpful for self-centering,but also can greatly improve the equivalent viscous damping ratio of SMA-TMD.The optimized SMA-TMD device can greatly reduce the ground motion response of the steel frame and accelerate the seismic energy consumption.

关 键 词：钢框架 形状记忆合金 调谐质量阻尼器 预应变 振动与控制 抗震性能 

分 类 号：TU528[建筑科学—建筑技术科学]