支座布置对曲线梁桥抗震性能的影响分析  

Analysis of influence of bearing arrangement on seismic performance of curved beam bridge

作　　者：杨扬 金跃群 YANG Yang;JIN Yaoqun(Zhejiang Institute of Communications Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]浙江数智交院科技股份有限公司,浙江杭州310000

出　　处：《中国高新科技》2023年第23期143-145,共3页

摘　　要：一般连续曲线梁桥中常采用两种支座布置形式,一种是根据结构曲线半径的切线方向定向位移的概念布置支座,另一种是根据结构朝一固定点沿径向位移的概念布置支座。结合某曲线梁桥的抗震设计,建立空间有限元模型,分析比较上述两种支座布置形式对曲线梁桥的动力特性和抗震性能的影响。分析研究表明,这两种支座布置形式主要影响曲线梁桥沿横桥向的动力特性和地震响应。In general continuous curve beam bridge,two types of bearing arrangement are often one is based on the concept of the tangent directional displacement of the structure curve radius,the other is based on the concept of radial displacement of the structure towards a fixed point.Based on the seismic design of a curved girder bridge,a spatial finite element model is established to analyze and compare the influence of the two kinds of bearing arrangement on the dynamic characteristics and seismic performance of the curved girder bridge.The analysis shows that the two types of bearing arrangement mainly affect the dynamic characteristics and seismic response of the curved beam bridge bridge along the transverse direction.

关 键 词：曲线梁桥 支座布置 抗震 

分 类 号：U441[建筑科学—桥梁与隧道工程]