Optimization of Cable Force Adjustment in Cable-Stayed Bridge considering the Number of Stay Cable Adjustment
Modern cable-stayed bridges are spatial, multicable systems. The cable force needs to be adjusted during the construction phase and maintenance phase. The existing calculation methods of cable force adjustment mainly considered the rationality of structural force, but only few research studies have...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2020/4527309 |
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| author | Han-Hao Zhang Nan-Nan Sun Pei-Zhi Wang Man-Hui Liu Yuan Li |
| author_facet | Han-Hao Zhang Nan-Nan Sun Pei-Zhi Wang Man-Hui Liu Yuan Li |
| author_sort | Han-Hao Zhang |
| collection | DOAJ |
| description | Modern cable-stayed bridges are spatial, multicable systems. The cable force needs to be adjusted during the construction phase and maintenance phase. The existing calculation methods of cable force adjustment mainly considered the rationality of structural force, but only few research studies have been conducted on how to reduce the number of stay cables which need to be adjusted. This study aims to propose an optimization calculation method including the optimization module with the sensitivity analysis and updating design variable module (UDVM), which are used for cable force adjustment in cable-stayed bridges. Based on the finite difference method, the sensitivity analysis is adopted in the optimization module, which can capture the response of structures as design variables vary; the particle swarm optimization method is adopted for structural optimization. The proposed method can dramatically reduce the number of stay cables which need to be adjusted and ensure the main girder stresses remain in a reasonable state during stay cable adjustment progress by UDVM. Moreover, the proposed method can continuously update the objective function, constraint conditions, and design variables. Finally, this proposed optimization calculation method is applied to two different cable-stayed bridges to validate the reliability and feasibility of the method. |
| format | Article |
| id | doaj-art-2e07e95a4fc74541a7b87f51ee19d2c5 |
| institution | DOAJ |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-2e07e95a4fc74541a7b87f51ee19d2c52025-08-20T03:20:26ZengWileyAdvances in Civil Engineering1687-80861687-80942020-01-01202010.1155/2020/45273094527309Optimization of Cable Force Adjustment in Cable-Stayed Bridge considering the Number of Stay Cable AdjustmentHan-Hao Zhang0Nan-Nan Sun1Pei-Zhi Wang2Man-Hui Liu3Yuan Li4School of Highway, Chang’an University, Xi’an 710064, ChinaSchool of Highway, Chang’an University, Xi’an 710064, ChinaSchool of Highway, Chang’an University, Xi’an 710064, ChinaZhejiang Scientific Research Institute of Transport, Hangzhou 310000, ChinaSchool of Highway, Chang’an University, Xi’an 710064, ChinaModern cable-stayed bridges are spatial, multicable systems. The cable force needs to be adjusted during the construction phase and maintenance phase. The existing calculation methods of cable force adjustment mainly considered the rationality of structural force, but only few research studies have been conducted on how to reduce the number of stay cables which need to be adjusted. This study aims to propose an optimization calculation method including the optimization module with the sensitivity analysis and updating design variable module (UDVM), which are used for cable force adjustment in cable-stayed bridges. Based on the finite difference method, the sensitivity analysis is adopted in the optimization module, which can capture the response of structures as design variables vary; the particle swarm optimization method is adopted for structural optimization. The proposed method can dramatically reduce the number of stay cables which need to be adjusted and ensure the main girder stresses remain in a reasonable state during stay cable adjustment progress by UDVM. Moreover, the proposed method can continuously update the objective function, constraint conditions, and design variables. Finally, this proposed optimization calculation method is applied to two different cable-stayed bridges to validate the reliability and feasibility of the method.http://dx.doi.org/10.1155/2020/4527309 |
| spellingShingle | Han-Hao Zhang Nan-Nan Sun Pei-Zhi Wang Man-Hui Liu Yuan Li Optimization of Cable Force Adjustment in Cable-Stayed Bridge considering the Number of Stay Cable Adjustment Advances in Civil Engineering |
| title | Optimization of Cable Force Adjustment in Cable-Stayed Bridge considering the Number of Stay Cable Adjustment |
| title_full | Optimization of Cable Force Adjustment in Cable-Stayed Bridge considering the Number of Stay Cable Adjustment |
| title_fullStr | Optimization of Cable Force Adjustment in Cable-Stayed Bridge considering the Number of Stay Cable Adjustment |
| title_full_unstemmed | Optimization of Cable Force Adjustment in Cable-Stayed Bridge considering the Number of Stay Cable Adjustment |
| title_short | Optimization of Cable Force Adjustment in Cable-Stayed Bridge considering the Number of Stay Cable Adjustment |
| title_sort | optimization of cable force adjustment in cable stayed bridge considering the number of stay cable adjustment |
| url | http://dx.doi.org/10.1155/2020/4527309 |
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