Effect of Initial Cable Tension on Cable-Stayed Bridge Performance and a New Construction Method
The tension forces of cables in cable-stayed bridges during their construction and operation may differ from initial conditions, which could affect the amount and distribution of internal forces on other parts of the bridge. If some bridge elements are loaded to their yield limits, alternating plast...
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| Format: | Article |
| Language: | English |
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Semnan University
2024-11-01
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| Series: | Journal of Rehabilitation in Civil Engineering |
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| Online Access: | https://civiljournal.semnan.ac.ir/article_8672_0631c45dbd114b640d3a44b295301333.pdf |
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| _version_ | 1832591997154623488 |
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| author | Hamid Dehghani Ehsan Dehghani Mehdi Sharifi Seyed Rohollah Hoseini Vaez |
| author_facet | Hamid Dehghani Ehsan Dehghani Mehdi Sharifi Seyed Rohollah Hoseini Vaez |
| author_sort | Hamid Dehghani |
| collection | DOAJ |
| description | The tension forces of cables in cable-stayed bridges during their construction and operation may differ from initial conditions, which could affect the amount and distribution of internal forces on other parts of the bridge. If some bridge elements are loaded to their yield limits, alternating plasticity and incremental collapse could occur under moving and repeated loading. This study investigated the effect of the initial tension force on the stiffness, strength, shakedown limit load, and alternating plasticity of cable-stayed bridges, which has not been studied so far. Two case study bridge models with cables having different initial forces were tested using nonlinear static analysis under gravitational force and nonlinear dynamic analysis under transient moving loads. The results showed that changes in the initial cable forces did not change the initial stiffness, ultimate strength, shakedown limit, alternating plasticity, or bridge reliability. These results were theoretically validated using plastic analysis theorems. This paper presents a new construction method for cable-stayed bridges based on the finding that adjusting the cable tension to the design value is not necessary during construction and operation. This method eliminates the need for tension adjustment and ensures that the final geometric shape of the bridge matches the expected profile. The proposed method offers a simpler and more efficient approach to constructing cable-stayed bridges without compromising the safety and durability of the structure. |
| format | Article |
| id | doaj-art-5f9edbe80d5440358cd747b94c24eb49 |
| institution | Kabale University |
| issn | 2345-4415 2345-4423 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Semnan University |
| record_format | Article |
| series | Journal of Rehabilitation in Civil Engineering |
| spelling | doaj-art-5f9edbe80d5440358cd747b94c24eb492025-01-21T20:47:46ZengSemnan UniversityJournal of Rehabilitation in Civil Engineering2345-44152345-44232024-11-0112413615410.22075/jrce.2024.33341.20028672Effect of Initial Cable Tension on Cable-Stayed Bridge Performance and a New Construction MethodHamid Dehghani0Ehsan Dehghani1Mehdi Sharifi2Seyed Rohollah Hoseini Vaez3Ph.D. Candidate, Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, IranAssociate Professor, Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, IranAssistant Professor, Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, IranProfessor, Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, IranThe tension forces of cables in cable-stayed bridges during their construction and operation may differ from initial conditions, which could affect the amount and distribution of internal forces on other parts of the bridge. If some bridge elements are loaded to their yield limits, alternating plasticity and incremental collapse could occur under moving and repeated loading. This study investigated the effect of the initial tension force on the stiffness, strength, shakedown limit load, and alternating plasticity of cable-stayed bridges, which has not been studied so far. Two case study bridge models with cables having different initial forces were tested using nonlinear static analysis under gravitational force and nonlinear dynamic analysis under transient moving loads. The results showed that changes in the initial cable forces did not change the initial stiffness, ultimate strength, shakedown limit, alternating plasticity, or bridge reliability. These results were theoretically validated using plastic analysis theorems. This paper presents a new construction method for cable-stayed bridges based on the finding that adjusting the cable tension to the design value is not necessary during construction and operation. This method eliminates the need for tension adjustment and ensures that the final geometric shape of the bridge matches the expected profile. The proposed method offers a simpler and more efficient approach to constructing cable-stayed bridges without compromising the safety and durability of the structure.https://civiljournal.semnan.ac.ir/article_8672_0631c45dbd114b640d3a44b295301333.pdfcable-stayed bridgeshakedown analysisalternating plasticityincremental collapseconstruction analysisnonlinear analysis |
| spellingShingle | Hamid Dehghani Ehsan Dehghani Mehdi Sharifi Seyed Rohollah Hoseini Vaez Effect of Initial Cable Tension on Cable-Stayed Bridge Performance and a New Construction Method Journal of Rehabilitation in Civil Engineering cable-stayed bridge shakedown analysis alternating plasticity incremental collapse construction analysis nonlinear analysis |
| title | Effect of Initial Cable Tension on Cable-Stayed Bridge Performance and a New Construction Method |
| title_full | Effect of Initial Cable Tension on Cable-Stayed Bridge Performance and a New Construction Method |
| title_fullStr | Effect of Initial Cable Tension on Cable-Stayed Bridge Performance and a New Construction Method |
| title_full_unstemmed | Effect of Initial Cable Tension on Cable-Stayed Bridge Performance and a New Construction Method |
| title_short | Effect of Initial Cable Tension on Cable-Stayed Bridge Performance and a New Construction Method |
| title_sort | effect of initial cable tension on cable stayed bridge performance and a new construction method |
| topic | cable-stayed bridge shakedown analysis alternating plasticity incremental collapse construction analysis nonlinear analysis |
| url | https://civiljournal.semnan.ac.ir/article_8672_0631c45dbd114b640d3a44b295301333.pdf |
| work_keys_str_mv | AT hamiddehghani effectofinitialcabletensiononcablestayedbridgeperformanceandanewconstructionmethod AT ehsandehghani effectofinitialcabletensiononcablestayedbridgeperformanceandanewconstructionmethod AT mehdisharifi effectofinitialcabletensiononcablestayedbridgeperformanceandanewconstructionmethod AT seyedrohollahhoseinivaez effectofinitialcabletensiononcablestayedbridgeperformanceandanewconstructionmethod |