三跨预应力混凝土连续梁桥抗震分析

摘要

Combined with the engineering case of a three-span concrete continuous girder bridge being built in a first-class highway, according to " Guidelines for Seismic Design of Highway Bridge" (JTG/ TB02-01-2008) ,the paper analyses dynamic characteristics of this bridge and seismic responses under the action of earthquake in El. Through calculating, the result shows that strength of this bridge under the action of frequently occurred earthquake can meet requirements of the design code.%结合某一级公路线上在建的三跨混凝土连续箱梁桥的工程背景,依据JTG/T B02-01-2008《公路桥梁抗震设计细则》,首先分析了该桥的动力特性,然后对该桥在E1地震作用下的地震反应进行了分析,通过验算,结果表明该桥在多遇地震作用下强度能够满足规范要求.