Vehicle load loading method for the fatigue analysis of long-span suspension bridges with straddling slings

In this study, the bridge structure is subjected to fatigue analysis. While the vehicle load application method for medium- and small-span bridges is relatively well-established, methods for fatigue analysis of large-span bridges under vehicle loads are still limited. This paper summarizes the vehic...

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Bibliographic Details
Main Authors: Jin-Ling Chai, Yong Wang, Lian-Xue Xia, Sheng-Li Li
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-05-01
Series:Frontiers in Mechanical Engineering
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmech.2025.1450915/full
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Summary:In this study, the bridge structure is subjected to fatigue analysis. While the vehicle load application method for medium- and small-span bridges is relatively well-established, methods for fatigue analysis of large-span bridges under vehicle loads are still limited. This paper summarizes the vehicle load application method for fatigue analysis of medium- and small-span bridges in foreign countries. Based on the sling of a large-span suspension bridge, a vehicle load application method for sling fatigue analysis in long-span suspension bridges is proposed. The proposed method is compared and analyzed, and relevant conclusions are drawn, which provides a reasonable approach for the fatigue analysis of cable structures in long-span bridges.
ISSN:2297-3079