基于推倒分析的圆形与矩形截面形式桥墩的对比研究

Comparative Study of Different Section Piers Based on Push-over Analysis

推倒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.对圆形截面和矩形截面桥墩进行Push-over分析,通过实例计算,比较这两种不同形式截面桥墩的抗震性能.一般说来,圆形桥墩抗震性能好一些.

Push-over analysis is becoming an accepted method for the seismic evaluation of the structure. The popularity of this approximate,nonlinear static ,analysis method is due to its conceptual simplicity and ability to graphically describe a structure＇s capacity and demand. The seismic performance assessment of circular pier and rectangular pier is studied by Push-over analysis. As a general result, the seismic performance assessment of circular pier is better.