摘要
为研究SMA-复摩擦摆支座(Shape Memory Alloys Double Friction Pendulum Bearing,SDFPB)在多、高层建筑结构中的隔震性能和安全性,基于OpenSees建立了SDFPB的有限元模型,分析了SDFPB力学性能影响因素,将其应用于九层Benchmark钢框架结构中,对比了隔震结构和非隔震结构的地震响应。研究表明,SDFPB隔震系统可以改善九层Benchmark钢框架动力特性,显著削弱上部结构在地震作用下的楼层加速度、层间位移角和层间剪力,有效控制隔震层位移,在多、高层建筑结构中可发挥良好隔震效果并提升安全性。
In order to study isolation performance of a shape memory alloys double friction pendulum bearing(SDFPB)in high-rise building structures,the finite element model of SDFPB was established based on OpenSees,and the influencing factors of mechanical properties of SDFPB were analyzed.It was applied to the nine-story Benchmark steel frame structure,and the seismic responses of the isolated structure with SDFB and the non-isolated structure without SDFB were compared.The research shows that the SDFPB isolation system can effectively extend the natural vibration period of the nine-story Benchmark steel frame,and significantly weaken the interstory displacement angle,floor acceleration and interstory shear force of the superstructure under earthquake actions.It is verified that the SDFPB isolation system can still play a good isolation effect in multi-story and high-rise building structures.
作者
庄鹏
刘松郁
Zhuang Peng;Liu Song-yu(School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Advanced Innovation Center for Future Urban Design,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Beijing Higher Institution Engineering Research Center of Structural Engineering and New Materials,Beijing University of Civil Engineering and Architecture,Beijing 100044,China)
出处
《工程抗震与加固改造》
北大核心
2024年第2期58-67,共10页
Earthquake Resistant Engineering and Retrofitting
基金
北京市自然科学基金资助项目(8182016)。
