梁板刚度对钢板组合梁地震响应规律研究  

Seismic response law of the stiffness of beam and slab to the steel-concrete composite beam

作　　者：张志威 陈亮[1] Zhang Zhi-wei;Chen Liang(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,安徽合肥230009

出　　处：《工程抗震与加固改造》2022年第3期40-46,共7页Earthquake Resistant Engineering and Retrofitting

摘　　要：对于钢板组合梁,钢主梁与混凝土板的刚度可能会对桥梁结构的动力响应产生影响。本文以某钢板组合梁桥为工程背景,采用SAP2000建立全桥抗震有限元模型,分析对比梁和板刚度的变化对桥梁结构的动力特性的影响,并且输入实际地震动,通过概率地震需求分析方法,获得梁和板刚度的变化对于墩底弯矩和支座位移风险曲线的影响规律。For the steel-concrete composite beam, the stiffness of the steel main beam and the concrete slab may affect the dynamic response of the bridge structure. Based on the engineering background of a steel-concrete composite beam bridge, SAP2000 is used to establish a whole bridge seismic finite factor model, the effect of the change of the stiffness of beam and slab on the dynamic characteristics of the bridge structure is analyzed, and the actual seismic movement is inputted. Through the probability seismic demand analysis method, the influence of beam and slab stiffness on the bottom bending moment and branch seat shift risk curve is obtained.

关 键 词：钢板组合梁 梁板刚度 动力特性 风险曲线 

分 类 号：TU312[建筑科学—结构工程]