Multiobjective Optimization of Cable Forces and Counterweights for Universal Cable-Stayed Bridges
In cable-stayed bridges, especially asymmetric bridges, counterweights are always made to work together with cable pretension forces to get a reasonable finished state. To solve the optimization problem of the cable-stayed bridge considering the counterweights, the integrated optimization method (IO...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Journal of Advanced Transportation |
| Online Access: | http://dx.doi.org/10.1155/2021/6615746 |
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| author | Zhangming Wang Nan Zhang Xianting Du Shilei Wang Qikai Sun |
| author_facet | Zhangming Wang Nan Zhang Xianting Du Shilei Wang Qikai Sun |
| author_sort | Zhangming Wang |
| collection | DOAJ |
| description | In cable-stayed bridges, especially asymmetric bridges, counterweights are always made to work together with cable pretension forces to get a reasonable finished state. To solve the optimization problem of the cable-stayed bridge considering the counterweights, the integrated optimization method (IOM) for estimating cable forces and counterweights is proposed. In this method, the counterweights are proposed to act on the anchor points. After that, the summary of the minimum weighted total bending energy and the summary of the counterweights are considered as two objective functions of a multiobjective problem. Finally, the dynamic weighted coefficient method is used to solve this problem and realize the Pareto solution set. IOM presents detailed procedures in a simple numerical model and is then applied to the Yong-ding special-shaped cable-stayed bridge. The results show that not only IOM can realize the priority selection of the loading position of the counterweights but also get a better reasonable finish state because of the introduction of the counterweight dimension; the dynamic weighted coefficient method can quickly find the Pareto optimal solution set and be further screened by decision-makers; counterweight is very helpful to reduce torsion and other spatial effects in cable-stayed bridges. IOM can be used as a universal optimization method for cable-stayed bridges. |
| format | Article |
| id | doaj-art-5377c1bde1ef4cb5a9bac090b2a38aba |
| institution | OA Journals |
| issn | 0197-6729 2042-3195 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Advanced Transportation |
| spelling | doaj-art-5377c1bde1ef4cb5a9bac090b2a38aba2025-08-20T02:05:31ZengWileyJournal of Advanced Transportation0197-67292042-31952021-01-01202110.1155/2021/66157466615746Multiobjective Optimization of Cable Forces and Counterweights for Universal Cable-Stayed BridgesZhangming Wang0Nan Zhang1Xianting Du2Shilei Wang3Qikai Sun4Department of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaDepartment of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaDepartment of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaInfrastructure Inspection Research Institute, China Academy of Railway Sciences Group Co., Ltd., Beijing 100081, ChinaDepartment of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaIn cable-stayed bridges, especially asymmetric bridges, counterweights are always made to work together with cable pretension forces to get a reasonable finished state. To solve the optimization problem of the cable-stayed bridge considering the counterweights, the integrated optimization method (IOM) for estimating cable forces and counterweights is proposed. In this method, the counterweights are proposed to act on the anchor points. After that, the summary of the minimum weighted total bending energy and the summary of the counterweights are considered as two objective functions of a multiobjective problem. Finally, the dynamic weighted coefficient method is used to solve this problem and realize the Pareto solution set. IOM presents detailed procedures in a simple numerical model and is then applied to the Yong-ding special-shaped cable-stayed bridge. The results show that not only IOM can realize the priority selection of the loading position of the counterweights but also get a better reasonable finish state because of the introduction of the counterweight dimension; the dynamic weighted coefficient method can quickly find the Pareto optimal solution set and be further screened by decision-makers; counterweight is very helpful to reduce torsion and other spatial effects in cable-stayed bridges. IOM can be used as a universal optimization method for cable-stayed bridges.http://dx.doi.org/10.1155/2021/6615746 |
| spellingShingle | Zhangming Wang Nan Zhang Xianting Du Shilei Wang Qikai Sun Multiobjective Optimization of Cable Forces and Counterweights for Universal Cable-Stayed Bridges Journal of Advanced Transportation |
| title | Multiobjective Optimization of Cable Forces and Counterweights for Universal Cable-Stayed Bridges |
| title_full | Multiobjective Optimization of Cable Forces and Counterweights for Universal Cable-Stayed Bridges |
| title_fullStr | Multiobjective Optimization of Cable Forces and Counterweights for Universal Cable-Stayed Bridges |
| title_full_unstemmed | Multiobjective Optimization of Cable Forces and Counterweights for Universal Cable-Stayed Bridges |
| title_short | Multiobjective Optimization of Cable Forces and Counterweights for Universal Cable-Stayed Bridges |
| title_sort | multiobjective optimization of cable forces and counterweights for universal cable stayed bridges |
| url | http://dx.doi.org/10.1155/2021/6615746 |
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