摘要
本文针对现有城市桥梁承载力评定方法的不足,提出了根据桥梁综合检测结果、结构固有模态参数测定结果以及使用荷载调查分析结果等数据,确定检算系数、截面折减系数、恶化系数以及活载影响修正系数,并结合桥梁设计和竣工资料,通过结构检算分析,进行荷载效应和抗力效应的比较,从而实现对桥梁承载力评定的方法,该方法综合考虑了结构构件质量现状、荷载状况和整体性能等多因素对桥梁承载能力的影响,使评定结果能够准确反映结构的实际状况,并便于实际应用。
This article put forward the method according to the comprehensive testing results and structural natural mode parameters determination results and service load investigation and analysis results of the bridge, etc. in allusion to the deficiency of the existing bearing capacity evaluation method of the city bridge, determine the check- calculation coefficient and section reduction coefficient and deterioration coefficient and live load effect correction coefficient, combine designing and completion data of the bridge, compare load effect with resistance effect according to structure check-calculation analysis, thus realize the bearing capacity evaluation method of the bridge. The method made a comprehensive consideration on the effect of structural members quality status and load status and the integral performance and other factors to the bridge bearing capacity, make the evaluation results can reflect the actual condition of the structure accurately,then beneficial to the practical application.
出处
《广州建筑》
2008年第5期23-27,共5页
GUANGZHOU ARCHITECTURE
基金
广州市科技计划项目(2006J1-C0521)
广州市建筑集团科技进步资助项目(2005-006)
关键词
检测
荷载效应
抗力效应
承载力
testing
load effect
resistance effect
, bearing capacity
