2种隔震形式对高位转换结构抗震性能的影响  

Influence of two different isolation forms on seismic performance of high-level transfer structures

作　　者：李瑞生 何沛祥[1] LI Ruisheng;HE Peixiang(School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China)

机构地区：[1]合肥工业大学土木与水利工程学院

出　　处：《合肥工业大学学报（自然科学版）》2019年第10期1382-1387,共6页Journal of Hefei University of Technology：Natural Science

摘　　要：针对不同的隔震形式对高位转换体系抗震性能的影响,文章利用Ansys软件,建立高位转换结构的基础隔震与转换层隔震有限元分析模型,并对其进行弹塑性地震时程分析。研究发现,设置隔震支座后高位转换结构的层间剪力和层间位移角明显减小;当采用转换层隔震时,可能会加剧转换层位置传力途径的突变,对结构安全造成不利影响。In order to study the seismic performance of high-level transfer system when different isolation forms are used, the finite element models of the base isolation and the transfer layer isolation of the high-level transfer structure are established respectively by using Ansys software, and then the elastic-plastic time history analysis is conducted. The results show that the interlaminar shear force and interlaminar displacement angle of the high-level transfer layer structure decrease after the adoption of isolation bearings. However, the transfer layer isolation may aggravate the sudden change of load transfer path in transfer layer and have adverse effects on structural safety.

关 键 词：基础隔震 转换层隔震 高位转换层结构 刚度突变 传力途径 

分 类 号：TU352.12[建筑科学—结构工程]