APPLICATION OF THE NUMERICAL METHODS TO ASSESSMENT OF THE FATIGUE LIFE OF STEEL MILITARY BRIDGES

被引：3
|
作者：
Duchaczek, Artur [1 ]
Manko, Zbigniew [2 ]
机构：
[1] Wyzsza Szkola Oficerska Wojsk Ladowych Gen T Kosc, Wroclaw, Poland
[2] Miedzynarodowa Wyzsza Szkola Logistyki & Transpor, Wroclaw, Poland
来源：
ROADS AND BRIDGES-DROGI I MOSTY | 2014年 / 13卷 / 01期
关键词：
fatigue crack; steel bridge; strength of materials;
D O I：
10.7409/rabdim.014.002
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This article proposes a method for predicting the fatigue life of steel bridges based on a numerical model. Being able to predict the residual life of a damaged bridge span expressed as the number of load cycles facilitates undertaking the right decisions on the time and scope of the necessary repairs. This research confirmed the applicability of the displacement correlation technique (DCT) for determination of the fatigue crack propagation rate in steel military bridges. The results of fatigue strength calculations carried out for the analysed bridge were compared with the results obtained with the other techniques available in FRANC2D program and with the laboratory results. The software program FRANC2D was found useful in analysing the phenomenon of crack propagation in steel bridges.
引用
收藏
页码：23 / 32
页数：10
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