基础隔震结构的抗倾覆性研究  

Research on Anti-overturning Performance of Fundamental Isolation Cushion

作　　者：王梦圆[1] 郑威[1] 施建波[1] 李玉荣[1] 

机构地区：[1]安徽理工大学土木建筑学院,安徽淮南232001

出　　处：《安徽理工大学学报（自然科学版）》2015年第2期32-36,共5页Journal of Anhui University of Science and Technology:Natural Science

基　　金：安徽省教育厅自然科学基金重点资助项目(KJ2009A141)

摘　　要：为了了解砂与橡胶粒隔震垫层下隔震结构的抗倾覆特性,以砂与橡胶粒混合隔震垫层、纯砂隔震垫层、非隔震三种情况作为研究对象,建立4组高宽比为1.0,2.0,3.0,4.0的框架结构模型。通过抗倾覆性振动台试验,分析在不同垫层类型、垫层厚度、加速度峰值条件下的上部结构的抗倾覆性能。试验结果表明:结构的抗倾覆性能在砂与橡胶粒隔震垫层下要优于纯砂隔震垫层,非隔震情况下的抗倾覆性能最弱;当加速度峰值加大时,结构的抗倾覆性能随之降低。Taking sand and rubber particle hybrid isolation cushion and pure sand isolation cushion and non - isolated as the research object, 4 groups of frame structure models with length - width ratio of 1.0, 2.0, 3.0, 4.0 were established respectively. The anti - overturning performance of the superstructure under different cushion types, cushion thickness and acceleration peak was analyzed with anti - overturning shaking table test. The experimental results showed that the structural anti - overturning performance of the sand and rubber particle hybrid isolation cushion is better than that of pure sand isolation cushion, and the structural anti - overturning performance of the non - isolated cushion is the weakest. With the increase of peak value of the acceleration, anti - o- verturning performance of the structure decreases.

关 键 词：振动台试验 隔震垫层 抗倾覆性 

分 类 号：TU352.1[建筑科学—结构工程]