摘要
管理和养护桥梁需要准确把握线路上每座桥梁的现实状态,可靠度评估技术是达到这一目的的有效途径。总结在役混凝土梁桥研究中关于承载能力极限状态时变可靠度、正常使用极限状态时变可靠度、疲劳可靠度及系统可靠度等方面取得的成果,分析各项研究中存在的不足和可能进一步发展的研究方向,为在役混凝土梁桥时变可靠度评估技术的深入研究提供借鉴。
Management and maintenance of bridges need to grasp current status of each bridge along the line accurately,and the evaluation technique for reliability is an effective way to reach this purpose.This paper summarizes results obtained from time-varying reliability at extreme status of bearing capacity,time-varying reliability at extreme status of normal use,fatigue reliability and system reliability,etc.in researches on in-service concrete beam bridges,and analyzes shortcomings in various researches and research direction with possible further development so as to provide a reference for deep research on evaluation techniques for time-varying reliability of in-service concrete beam bridges.
出处
《公路交通技术》
2012年第6期57-61,71,共6页
Technology of Highway and Transport
基金
交通运输部科技项目(2010318740008)
关键词
在役混凝土梁桥
时变可靠度
评估技术
in-service concrete beam bridge
time-varying reliability
evaluation technique
