长大线33米下承桁梁疲劳剩余寿命的评估  

Estimation of Fatigue Remanent Life for Truss of 33-Metres Span Through Bridges on Changchun-Dalian Section

作　　者：马骥全[1] 常录喜 王东岱 朱华满[1] 王承域 于鹏程[1] 刘志斌 赵宏光 田洪德 朱延年 

机构地区：[1]大连铁道学院机车车辆系,沈阳铁路局

出　　处：《大连铁道学院学报》1994年第2期43-50,共8页Journal of Dalian Railway Institute

摘　　要：应用构件的疲劳曲线和Ｍｉｎｅｒ线性累积损伤法则，对旧铆接钢梁进行了疲劳剩余寿命评估，为长大线电气化改造工程中更换旧铆接钢梁的决策，提供了重要的科学依据，具有明显的社会与经济效益．同时，为全国同类型钢梁的疲劳剩余寿命评估提供了借鉴。Estimates the fatigue remanent life of riveted steel girders acoording to the frame fatiguecurve and the Miner linear cumulative injuries theory.Proposes an important scientific mechanismreplacing old riveted steel girders in the electrification engineering of Changchun-Dalian seetion,and it would lead an obvious economic and social benefit.At the same time,presents experience forestimation of fatigue remanent life of the same type steel girders.

关 键 词：下承式桥 桁梁 疲劳寿命 铁路桥 

分 类 号：U448.131.4[建筑科学—桥梁与隧道工程] U448.531.4[交通运输工程—道路与铁道工程]