Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge
To investigate the reasonable range of the inclination angle of arch ribs, a spatial finite element method was employed based on a concrete-filled steel tube (CFST) basket-handle through an arch bridge with a span of 360 m. A spatial finite element model was established using Midas/Civil software, w...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Buildings |
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| Online Access: | https://www.mdpi.com/2075-5309/13/6/1415 |
| _version_ | 1797595676566093824 |
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| author | Zengwu Liu Yuexing Wu Chengwei Wang Yonghui Fan Chao Luo Shaorui Wang |
| author_facet | Zengwu Liu Yuexing Wu Chengwei Wang Yonghui Fan Chao Luo Shaorui Wang |
| author_sort | Zengwu Liu |
| collection | DOAJ |
| description | To investigate the reasonable range of the inclination angle of arch ribs, a spatial finite element method was employed based on a concrete-filled steel tube (CFST) basket-handle through an arch bridge with a span of 360 m. A spatial finite element model was established using Midas/Civil software, which was verified with actual bridge data. The effects of different arch rib inclination angles were investigated under static loads. The structural natural frequencies, linear elastic stability coefficients, internal forces, and displacements were comprehensively considered to determine the reasonable range of the inclination angle. The results show that when the inclination angle ranges between 8° and 10°, the first, third, and sixth natural frequencies of the structure are increased. It effectively improves the lateral and torsional stiffness of the arch ribs while ensuring optimal out-of-plane stability of the arch ribs. Compared with the parallel arch, the stability is improved by 20.2%. The effects of angle variation on displacement and internal force of the arch ribs were not significant. Considering all indicators, the optimal range of the inclination angle for the arch ribs of 300-m-level highway CFST arch bridges is suggested to be 8~10°. |
| first_indexed | 2024-03-11T02:40:42Z |
| format | Article |
| id | doaj.art-5d67e6191ca04ff6b9f62bd067e2f66a |
| institution | Directory Open Access Journal |
| issn | 2075-5309 |
| language | English |
| last_indexed | 2024-03-11T02:40:42Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Buildings |
| spelling | doaj.art-5d67e6191ca04ff6b9f62bd067e2f66a2023-11-18T09:37:59ZengMDPI AGBuildings2075-53092023-05-01136141510.3390/buildings13061415Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch BridgeZengwu Liu0Yuexing Wu1Chengwei Wang2Yonghui Fan3Chao Luo4Shaorui Wang5School of Transportation and Civil Engineering, Shandong Jiao Tong University, Changqing District, Jinan 250357, ChinaSchool of Civil Engineering, Hunan City University, Yiyang 413000, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaTo investigate the reasonable range of the inclination angle of arch ribs, a spatial finite element method was employed based on a concrete-filled steel tube (CFST) basket-handle through an arch bridge with a span of 360 m. A spatial finite element model was established using Midas/Civil software, which was verified with actual bridge data. The effects of different arch rib inclination angles were investigated under static loads. The structural natural frequencies, linear elastic stability coefficients, internal forces, and displacements were comprehensively considered to determine the reasonable range of the inclination angle. The results show that when the inclination angle ranges between 8° and 10°, the first, third, and sixth natural frequencies of the structure are increased. It effectively improves the lateral and torsional stiffness of the arch ribs while ensuring optimal out-of-plane stability of the arch ribs. Compared with the parallel arch, the stability is improved by 20.2%. The effects of angle variation on displacement and internal force of the arch ribs were not significant. Considering all indicators, the optimal range of the inclination angle for the arch ribs of 300-m-level highway CFST arch bridges is suggested to be 8~10°.https://www.mdpi.com/2075-5309/13/6/1415steel tube concrete truss archhighway basket-handle arch bridgearch rib inclination anglefinite element methodlateral stability |
| spellingShingle | Zengwu Liu Yuexing Wu Chengwei Wang Yonghui Fan Chao Luo Shaorui Wang Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge Buildings steel tube concrete truss arch highway basket-handle arch bridge arch rib inclination angle finite element method lateral stability |
| title | Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge |
| title_full | Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge |
| title_fullStr | Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge |
| title_full_unstemmed | Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge |
| title_short | Research on Optimal Arch Rib Inclination of Large Span Highway CFST through Arch Bridge |
| title_sort | research on optimal arch rib inclination of large span highway cfst through arch bridge |
| topic | steel tube concrete truss arch highway basket-handle arch bridge arch rib inclination angle finite element method lateral stability |
| url | https://www.mdpi.com/2075-5309/13/6/1415 |
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