在役铁路钢桥疲劳损伤机理、检测技术及疲劳寿命预测研究综述

在役铁路钢桥由于设计、施工水平的局限性和环境因素的影响,许多旧桥在通行高速重载列车时的运营能力已明显不足,于是如何对铁路钢桥进行疲劳损伤检测和剩余寿命预测已成为国内外学术界、工程界研究的热点.本文对目前国内外有关钢桥的疲劳损伤机理、检测技术及疲劳寿命预测的研究做了总结和展望.

Research Review of Fatigue Damage Mechanism, Test Technique and Fatigue Life Prediction of Inservice Railway Steel bridges

Due to the influence of the factors such as design,construction level and environment,the operation ability of many inservice steel bridges has been already obviously insufficient in the heavily loaded train,then the damage testing and remained life prediction of railway steel bridges has become focus of domestic and international academia.Domestic and international research of fatigue damage mechanism,test technique and fatigue life prediction of inservice railway steel bridges is summarized and forecasted.