Improved Shape-Finding Method and Parametric Study for Designing Asymmetric Suspension Bridges in Mountainous Terrain
The suspension bridges in mountainous areas are commonly designed with asymmetrical overall layouts to match the terrain and construction under limited space. However, the effects and influences of the asymmetry parameters on the bridge performance have yet to be thoroughly investigated. To address...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2023/7508814 |
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| _version_ | 1832555292046393344 |
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| author | Chenchen Jiang Yangxun Ou Weiyu Tang Shengjun Hou Rui Luo Yuhao Jin Bin Sun |
| author_facet | Chenchen Jiang Yangxun Ou Weiyu Tang Shengjun Hou Rui Luo Yuhao Jin Bin Sun |
| author_sort | Chenchen Jiang |
| collection | DOAJ |
| description | The suspension bridges in mountainous areas are commonly designed with asymmetrical overall layouts to match the terrain and construction under limited space. However, the effects and influences of the asymmetry parameters on the bridge performance have yet to be thoroughly investigated. To address this gap, based on a real-world suspension bridge with a main span length of 700 m, this paper first presents an improved shape-finding method that can fully consider the components of hanger forces in each construction step. In the iterative process, the shape of the cable is determined based on the equilibrium equations, and the hanger forces are calculated through the nonlinear finite element analysis. After deciding the bridge’s initial state, the asymmetry parameters’ effects are carefully investigated through finite element analysis under the static and seismic conditions. Results show that the side-to-span ratio of the main cable and the tower’s stiffness can affect the horizontally constrained stiffness, resulting in distinct bridge behavior. Moreover, reasonably designing the dampers between the tower and the girder can be beneficial in minimizing the longitudinal displacement and controlling the tower’s moment under the seismic situations. |
| format | Article |
| id | doaj-art-d8383a8a4f734657b037d775c4c78268 |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-d8383a8a4f734657b037d775c4c782682025-02-03T05:48:40ZengWileyAdvances in Civil Engineering1687-80942023-01-01202310.1155/2023/7508814Improved Shape-Finding Method and Parametric Study for Designing Asymmetric Suspension Bridges in Mountainous TerrainChenchen Jiang0Yangxun Ou1Weiyu Tang2Shengjun Hou3Rui Luo4Yuhao Jin5Bin Sun6China Power Construct Road and Bridge Group Co. Ltd.China Power Construct Road and Bridge Group Co. Ltd.China Power Construct Road and Bridge Group Co. Ltd.China Power Construct Road and Bridge Group Co. Ltd.Department of Bridge EngineeringDepartment of Bridge EngineeringDepartment of Bridge EngineeringThe suspension bridges in mountainous areas are commonly designed with asymmetrical overall layouts to match the terrain and construction under limited space. However, the effects and influences of the asymmetry parameters on the bridge performance have yet to be thoroughly investigated. To address this gap, based on a real-world suspension bridge with a main span length of 700 m, this paper first presents an improved shape-finding method that can fully consider the components of hanger forces in each construction step. In the iterative process, the shape of the cable is determined based on the equilibrium equations, and the hanger forces are calculated through the nonlinear finite element analysis. After deciding the bridge’s initial state, the asymmetry parameters’ effects are carefully investigated through finite element analysis under the static and seismic conditions. Results show that the side-to-span ratio of the main cable and the tower’s stiffness can affect the horizontally constrained stiffness, resulting in distinct bridge behavior. Moreover, reasonably designing the dampers between the tower and the girder can be beneficial in minimizing the longitudinal displacement and controlling the tower’s moment under the seismic situations.http://dx.doi.org/10.1155/2023/7508814 |
| spellingShingle | Chenchen Jiang Yangxun Ou Weiyu Tang Shengjun Hou Rui Luo Yuhao Jin Bin Sun Improved Shape-Finding Method and Parametric Study for Designing Asymmetric Suspension Bridges in Mountainous Terrain Advances in Civil Engineering |
| title | Improved Shape-Finding Method and Parametric Study for Designing Asymmetric Suspension Bridges in Mountainous Terrain |
| title_full | Improved Shape-Finding Method and Parametric Study for Designing Asymmetric Suspension Bridges in Mountainous Terrain |
| title_fullStr | Improved Shape-Finding Method and Parametric Study for Designing Asymmetric Suspension Bridges in Mountainous Terrain |
| title_full_unstemmed | Improved Shape-Finding Method and Parametric Study for Designing Asymmetric Suspension Bridges in Mountainous Terrain |
| title_short | Improved Shape-Finding Method and Parametric Study for Designing Asymmetric Suspension Bridges in Mountainous Terrain |
| title_sort | improved shape finding method and parametric study for designing asymmetric suspension bridges in mountainous terrain |
| url | http://dx.doi.org/10.1155/2023/7508814 |
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