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大跨度斜拉桥减震耗能非线性纵向地震反应分析
Analysis of Nonlinear Longitudinal Seismic Response of Long-Span Cable-Stayed Bridge with Seismicity Mitigation and Energy Dissipation Devices
【摘要】 提出在斜拉桥主梁与桥塔连接处采用铅芯橡胶支座与粘滞阻尼器作为其减震、耗能措施,并利用双线性模型与Maxwell阻尼模型分别模拟铅芯支座与粘滞阻尼器的滞回耗能特性,通过结构非线性地震分析的方法,分析了铅芯橡胶支座与粘滞阻尼器的减震、耗能效果。
【Abstract】 In this paper, the lead-rubber bearings and viscous dampers are proposed to be used as the seismicity mitigation and energy dissipation devices at the connections between the deck and pylons of cable-stayed bridge. The bilinear model and Maxwell damper model are also used to respectively simulate the hysteretic behavior of the bearings and dampers. Finally, the effects of the seismicity mitigation and energy dissipation of the bearings and dampers are investigated through the nonlinear seismicity analysis method of the structure.
【关键词】 斜拉桥；
铅芯橡胶支座；
粘滞阻尼器；
耗能；
减震；
非线性分析；
【Key words】 cable-stayed bridge； lead-rubber bearing； viscous damper； energy dissipation； seismic mitigation； non-linear analysis；
【Key words】 cable-stayed bridge； lead-rubber bearing； viscous damper； energy dissipation； seismic mitigation； non-linear analysis；
- 【文献出处】 桥梁建设 ,Bridge Construction , 编辑部邮箱 ,2004年06期
- 【分类号】U448.27;U441.3
- 【被引频次】14
- 【下载频次】236