Reliability Assessment of Fatigue Life of Hangers in Large-Span Suspension Bridges

Abstract:

Hangers are very important components for suspension bridges, which link main cables and stiffening girders. When in service, hangers are much vulnerable to fatigue loads due to kinds of traffic flows, which may reduce the remaining life of the hangers and increase the risk of losing public confidence in cable supported bridges. In order to quantify the reliability of hangers under vehicle loads, fatigue reliability formula of hangers is proposed in this paper. Based on the accurate analysis of vehicle load spectrum, the time history of hangers is simulated and maintenance strategy is proposed.

• Periodical: Applied Mechanics and Materials (Volume 147)
• Pages: 149-152
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.147.149
• Online since: December 2011
• Authors: Yong Zeng, Hong Mei Tan
• Keywords: Fatigue Life, Hangers, Reliability Assessment, Suspension Bridge

References

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DOI: 10.1201/9780203885307.ch76