REMAINING FATIGUE LIFE OF OLD STEEL BRIDGES
REMAINING FATIGUE LIFE OF OLD STEEL BRIDGES
复制标题
旧钢桥的剩余疲劳寿命
DOI：
10.1201/9781482267068-33
复制
发表时间：
1989
影响因子：
11.2
通讯作者：
K. Brandes
中科院分区：
文献类型：
--
作者：
K. Brandes
The evaluation of the remaining fatigue life of old steel bridges is very important, because they are very numerous. This paper describes the use of crack growth tests to extend the commonly used evaluation procedure. It was applied to investigate two old bridges in Germany. The bridges investigated were: (1) a truss bridge crossing the Dortmund-Ems canal near Osnabrueck in West Germany; and (2) a riveted girder bridge on the West Berlin Metro. The tests for the first bridge included strain measurements at longitudinal and cross girders under static load and under traffic flow, and tests on the material of the relevant structural elements. Before the second bridge was removed, because the road that it crossed had to be widened, strain measurements were performed at several points in the structure. Traffic load on the second bridge was simulated in the laboratory, in order to verify the field measurements. The test results enabled the classification of the bridge material in terms of fatigue strength, and allowed the propagation of postulated or observed cracks to be determined during the inspection period. For the covering abstract of the conference see IRRD 858334. The French title of this paper is:- Capacite de resistance a la fatigue des vieux ponts en acier. The German title of this paper is:- Beurteilung der Restlebensdauer alter Stahlbruecken.
