Abstract
This work presented salient features of the steel behavior of seven metallic bridges close to, or over, 100 years old, among the Spanish conventional rail network as well as the results of a fatigue life expectancy study. A preliminary study of the properties of the constituent materials obtained from the bridges samples was carried out followed by dynamic fatigue tests under service representative loads. Due to the steelmaking techniques in the late 19th and early 20th centuries, disperse fatigue behavior results were obtained. However, the wide safety margins with which these bridges were designed, as well as the mechanical properties of the steel (relatively good mechanical resistance but with low ductility), seem to guarantee a long fatigue life. This estimate decreases sharply with increasing loads.
Subject
General Materials Science
Reference32 articles.
1. Analysis of dynamic and fatigue effects in an old metallic riveted bridge
2. Committee on fatigue and fracture reliability of the committee on structural safety and reliability of the structural division, fatigue reliability: 1–4;J. Struct. Eng. ASCE,1982
3. Fatigue and Fracture in Steel Bridges: Case Studies;Fisher,1984
4. A new function for fatigue curves characterization and its multiple merits
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献