公路装配式梁桥两阶段抗震性能评估方法

摘要

In this paper,Yunnan province city forty-eight small river bridge as the engineering background,the application of evaluation method of seismic performance of the two stage in practical engineering was introduced;First,based on the routine detection and analysis of the appearance of the bridge before the earthquake,the prehminary evaluation of the seismic performance was carried out;Then,the seismic response of the bridge was analyzed by response spectrum method and time history analysis method,and the seismic performance was evaluated in detail (the second stage) based on the corresponding analysis results.%以云南省普洱市四十八小河桥为工程背景,介绍了两阶段抗震性能评估方法在实际工程中的应用:首先基于震前桥梁外观常规检测分析,进行抗震性能初步评估;然后分别采用反应谱法和时程分析法对该桥进行地震响应数值分析,基于相应分析结果进行抗震性能详细评估.