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    Damage Identification of Tie-Down Cables in Cable-Stayed Bridges Using Vehicle-Induced Displacement

    Source: Journal of Performance of Constructed Facilities:;2021:;Volume ( 035 ):;issue: 003::page 04021011-1
    Author:
    Guang-Ming Wu
    ,
    Ting-Hua Yi
    ,
    Dong-Hui Yang
    ,
    Hong-Nan Li
    DOI: 10.1061/(ASCE)CF.1943-5509.0001590
    Publisher: ASCE
    Abstract: Tie-down cables are critical components of uplift-restraint bearings in bridges. Damage of a tie-down cable substantially affects the safety of a bridge and driving conditions. In this study, a damage identification method for the tie-down cable in cable-stayed bridges is developed by using vehicle-induced displacement. First, a vehicle-induced displacement is derived through theoretical mechanical analysis. By introducing an area reduction factor for the tie-down cable, a displacement-based damage index is proposed, and the changing regularity of the proposed damage index is comprehensively illustrated in different damage cases. Then, the numerical simulation with the corresponding area reduction of the tie-down cable is implemented for a cable-stayed bridge to validate the rationality of the damage index. The results demonstrate that the proposed damage index is not affected by the weight of the vehicles and is effective in detecting the area reduction of tie-down cables without the information of vehicle weights. The changing regularity of the damage index can reflect the damage cases of tie-down cables. For the actual application of the proposed method, the damage index possessing a minimum initial value, which is obtained when vehicles pass in the outermost lane of a bridge, is optimum.
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      Damage Identification of Tie-Down Cables in Cable-Stayed Bridges Using Vehicle-Induced Displacement

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4270935
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    contributor authorGuang-Ming Wu
    contributor authorTing-Hua Yi
    contributor authorDong-Hui Yang
    contributor authorHong-Nan Li
    date accessioned2022-02-01T00:06:43Z
    date available2022-02-01T00:06:43Z
    date issued6/1/2021
    identifier other%28ASCE%29CF.1943-5509.0001590.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4270935
    description abstractTie-down cables are critical components of uplift-restraint bearings in bridges. Damage of a tie-down cable substantially affects the safety of a bridge and driving conditions. In this study, a damage identification method for the tie-down cable in cable-stayed bridges is developed by using vehicle-induced displacement. First, a vehicle-induced displacement is derived through theoretical mechanical analysis. By introducing an area reduction factor for the tie-down cable, a displacement-based damage index is proposed, and the changing regularity of the proposed damage index is comprehensively illustrated in different damage cases. Then, the numerical simulation with the corresponding area reduction of the tie-down cable is implemented for a cable-stayed bridge to validate the rationality of the damage index. The results demonstrate that the proposed damage index is not affected by the weight of the vehicles and is effective in detecting the area reduction of tie-down cables without the information of vehicle weights. The changing regularity of the damage index can reflect the damage cases of tie-down cables. For the actual application of the proposed method, the damage index possessing a minimum initial value, which is obtained when vehicles pass in the outermost lane of a bridge, is optimum.
    publisherASCE
    titleDamage Identification of Tie-Down Cables in Cable-Stayed Bridges Using Vehicle-Induced Displacement
    typeJournal Paper
    journal volume35
    journal issue3
    journal titleJournal of Performance of Constructed Facilities
    identifier doi10.1061/(ASCE)CF.1943-5509.0001590
    journal fristpage04021011-1
    journal lastpage04021011-10
    page10
    treeJournal of Performance of Constructed Facilities:;2021:;Volume ( 035 ):;issue: 003
    contenttypeFulltext
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