Cable Force Analysis of Extradosed Bridge Based on Comprehensive Optimization Method
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Bibliographic Details
| Author(s): |
Liming Zhu
(Nanjing Tech University, Nanjing, China)
Han Xiao (Nanjing Tech University, Nanjing, China) Qinyu Chen (Nanjing Tech University, Nanjing, China) Chenyang Yi (Nanjing Tech University, Nanjing, China) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Bridges and Structures: Connection, Integration and Harmonisation, Nanjing, People's Republic of China, 21-23 September 2022 | ||||
| Published in: | IABSE Congress Nanjing 2022 | ||||
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| Page(s): | 276-282 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/nanjing.2022.0276 | ||||
| Abstract: |
In order to determine the rational cable force of the extradosed bridge, a comprehensive optimization method of cable force is proposed. The method is based on the influence matrix method and adopts the data standardization method to change two or more different types of discrete data into dimensionless uniform data, with the objective of minimizing the combined displacement and bending moment of the structural control section. Relying on the extradosed bridge of Nanjing Intercity Rail Transit Ningju Line as an engineering example, the results show that the calculated cable force of the integrated optimization method can reduce the maximum compressive stress at the top and bottom edge of the main girder by 3.3 % and 3.8 %, respectively, compared with the original design cable force. |
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| Keywords: |
extradosed bridge numerical calculation cable force optimization influence matrix method rational bridge completion state
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| Copyright: | © 2022 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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