A multi-objective genetic algorithm for optimal design of cable networks with external dampers and cross-ties
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Bibliographic Details
| Author(s): |
Fangdian Di
(Department of Bridge Engineering, Tongji University, Shanghai, China)
Lin Chen 
(Department of Bridge Engineering, Tongji University, Shanghai, China)
Limin Sun
(State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China)
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Structural Engineering for Future Societal Needs, Ghent, Belgium, 22-24 September 2021 | ||||
| Published in: | IABSE Congress Ghent 2021 | ||||
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| Page(s): | 893-900 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/ghent.2021.0893 | ||||
| Abstract: |
A hybrid technique combining cross-ties and external dampers has been successfully applied in several cable-stayed bridges. However, there is a lack of optimization design method in practical design of the hybrid system. Therefore, this study proposes an optimal design method to optimize the parameters of the cross-ties and external dampers for the cable vibration mitigation, using multi-objective genetic algorithm (MOGA). A two-cable hybrid system is studied in this paper and its characteristic equation is derived by using the complex modal analysis method. The optimal design method is introduced and its feasibility is demonstrated by analyzing a simple cable-damper system. Subsequently, the proposed method is used for optimal design of the cross-tie and external dampers of a two-cable hybrid system. The results indicate that the proposed method can be used for performance optimization of hybrid cable networks system in practice. |
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| Keywords: |
optimal design hybrid cable networks external damper multi-objective genetic algorithm (MOGA)
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| Copyright: | © 2021 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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