Analysis on Mechanical Performance of Rail-Cum-Road Double Deck Steel Truss-Arch Composite System Bridge
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Bibliographic Details
| Author(s): |
Bingfei Liu
(Tongji University, Shanghai, China)
Qingtian Su (Tongji University, Shanghai, China) Dongxu Li (Anhui Provincial Group Limited for Yangtze-to-Huaihe Water Diversion, Hefei Anhui, China) Minggu Ouyang (CCCC Quanzhou Expressway Co., Ltd. , Quanzhou Fujian, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 320-328 | ||||
| Total no. of pages: | 9 | ||||
| DOI: | 10.2749/nanjing.2022.0320 | ||||
| Abstract: |
In order to research the mechanical performance of rail-cum-road double deck steel truss-arch composite system bridge, a rail-cum-road double deck steel truss-arch composite system bridge with 150m main span was analyzed. The overall spatial model of the bridge was established by using the general finite element software, and the structural response under dead load, vehicle load, rail transit load and temperature was calculated and analyzed. Dead load is the main factor causing the internal force of long-span composite system bridge. The stiffness of steel arch rib and steel truss is only 13.5% and 24% of the composite system, so the steel truss-arch composite system bridge has greater overall structural stiffness. In terms of dynamic characteristics, the overall stiffness of steel truss arch composite system bridge is great, the first five natural frequencies are all between 0.3Hz and 1.5Hz, and there is the possibility of simultaneous multi-mode excitation. |
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| Keywords: |
stiffness structural response Dynamic characteristics rail-cum-road steel truss-arch composite system
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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