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大跨度钢管混凝土拱桥非线性地震响应分析
Nonlinear Seismic Response Analysis of Long-span CFST Arch Bridge
【摘要】 研究了大跨度钢管混凝土拱桥在同步激励和多点激励作用下的非线性地震响应特性及主要影响因素。采用时程分析法计算了大跨度钢管混凝土拱桥的非线性地震响应,研究了几何非线性对结构地震响应的影响,探讨了恒载内力和构型、多点激励效应等因素对大跨度钢管混凝土拱桥非线性地震响应特性的影响,结果表明结构的几何非线性性质对大跨度钢管混凝土拱桥的地震响应有较大影响。
【Abstract】 The non-linear seismic response behavior of concrete filled in steel tube(CFST) arch bridge subjected to synchronous seismic excition and multi-support seismic excitation is studied in this paper.The non-linear seismic response of CFST arch bridge is calculated by time-history analysis method,and the effect of geometric nonlinear to long-span CFST arch bridge is studied.The influence of internal-force and deformence under dead-load,multi-support seismic excitation,etc to nonlinear seismic response behavior of CFST arch bridge is analysed.The result show that the effect of geometric nonlinear to long-span CFST arch bridge is obvious.
【Key words】 arch bridge; nonlinear; seismic response; multi-support seismic excitation;
- 【文献出处】 重庆建筑大学学报 ,Journal of Chongqing Jianzhu University , 编辑部邮箱 ,2006年02期
- 【分类号】U442.55
- 【被引频次】45
- 【下载频次】273