摘要
目前在桥梁抗震性能评价中多倾向于采用非线性时程分析计算桥梁地震响应,但是存在工作量大,计算复杂等问题。而静力弹塑性(Push-over)分析方法作为一种结构非线性地震响应的近似计算方法,以其概念简明、操作简便、能用图形方式直观地表达结构的抗震能力与需求等特点,正逐渐受到重视和推广。文中对铁路常用的桥墩截面形状圆形、圆端形和矩形桥墩进行Push-over分析研究其抗震性能。
The nonlinear time process analysis is commonly used in the evaluation of the bridge earthquake response at present,but with problems of heavy workload and complicated calculation.Push-over analysis,an approximate calculation method for nonlinear earthquake response,however,is gradually accepted for its conciseness,convenience,direct expression of shock resistance of structures with graphs in application.In this paper,push-over analysis is employed in the study of shock resistance of railway bridge piers with cross section in the shapes of roundness,nose circle and rectangle.
出处
《高速铁路技术》
2011年第2期25-27,共3页
High Speed Railway Technology
