基础隔震结构的抗倾覆性研究

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英文篇名：Research on Anti-overturning Performance of Fundamental Isolation Cushion 中文刊名：安徽理工大学学报(自然科学版) 英文刊名：Journal of Anhui University of Science and Technology(Natural Science) 作者：王梦圆 ; 郑威 ; 施建波 ; 李玉荣 英文作者：WANG Meng-yuan ; ZHEN Wei ; SHI Jian-bo ; LI Yu-rong ; School of Civil Engineering and Architecture ; Anhui University of Science and Technology 中文关键词：振动台试验 ; 隔震垫层 ; 抗倾覆性 英文关键词：shaking table test ; vibration isolation cushion layer ; anti-overturn performance 出版日期：2015-06-15 机构：安徽理工大学土木建筑学院; 年：2015 期：02 出版单位：安徽理工大学学报(自然科学版)

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. 0were 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-overturning performance of the structure decreases.

引文

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