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Structural Engineering and Mechanics Volume 88, Number 1, October10 2023 , pages 53-65 DOI: https://doi.org/10.12989/sem.2023.88.1.053 |
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Rapid assessment of suspension bridge deformation under concentrated live load considering main beam stiffness: An analytical method |
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Wen-ming Zhang, Jia-qi Chang, Xing-hang Shen, Xiao-fan Lu and Tian-cheng Liu
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| Abstract | ||
| With the gradual implementation of long-span suspension bridges into high-speed railway operations, the main beam's bending stiffness contribution to the live load response permanently grows. Since another critical control parameter of railway suspension bridges is the beam-end rotation angle, it should not be ignored by treating the main beam deflection as the only deformation response. To this end, the current study refines the existing method of the main cable shape and simply supported beam bending moment analogy. The bending stiffness of the main beam is considered, and the main beam | ||
| Key Words | ||
| analytical method; beam-end rotation angle; gravity stiffness; live load; main beam deflection; suspension bridge | ||
| Address | ||
| Wen-ming Zhang, Jia-qi Chang, Xing-hang Shen, Xiao-fan Lu: The Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 211189, China Tian-cheng Liu: CCCC Highway Bridges National Engineering Research Centre CO., Ltd., Beijing 100088, China | ||