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    Pretensioning Suspender System for Performance Improvement of a Tied-Arch Bridge with PC Stiff Hangers

    Source: Journal of Performance of Constructed Facilities:;2025:;Volume ( 039 ):;issue: 001::page 04024053-1
    Author:
    Xiaoming Wang
    ,
    Wenjie Yang
    ,
    Lu Deng
    ,
    Frederic Chardin Tchuente Nko’o
    ,
    Shengpeng Tang
    ,
    Runhan Wu
    ,
    Chenxi Li
    ,
    Xiaoyu Luo
    DOI: 10.1061/JPCFEV.CFENG-4755
    Publisher: American Society of Civil Engineers
    Abstract: This paper investigates the improvement method and evaluation process for the service performance of a prestressed concrete (PC)-stiffened tied-arch bridge, of which the bearing capacity can be easily degraded due to aging of its components. A reasonable and effective active retrofitting technology is proposed, and high-strength steel strands are used as new pretensioned flexible suspenders, which are added to the original bridge structure through a new connector design. To validate the performance of the retrofitting method, an efficient and stable retrofitting evaluation process is established based on the experimental data obtained from tests carried out on a typical damaged tie-arch bridge in China. To assess the effectiveness of the retrofitting method, the values of the static performance index, dynamic performance index, and pedestrian comfort index before and after retrofitting are compared. Analysis of the results for the static performance index indicate that the retrofitting method can achieve ideal effects and effectively improve the performance of the original concrete stiff hangers, which exhibit excessive tensile stress before retrofitting. The dynamic performance demonstrates that the retrofitting method can improve the structural stiffness and effectively alleviate the excessive dynamic response of the original bridge. Furthermore, the pedestrian comfort index is improved after retrofitting. Overall, the proposed approach of this paper can effectively aid in the management and maintenance of a PC-stiffened tied-arch bridge.
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      Pretensioning Suspender System for Performance Improvement of a Tied-Arch Bridge with PC Stiff Hangers

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    http://yetl.yabesh.ir/yetl1/handle/yetl/4303756
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    • Journal of Performance of Constructed Facilities

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    contributor authorXiaoming Wang
    contributor authorWenjie Yang
    contributor authorLu Deng
    contributor authorFrederic Chardin Tchuente Nko’o
    contributor authorShengpeng Tang
    contributor authorRunhan Wu
    contributor authorChenxi Li
    contributor authorXiaoyu Luo
    date accessioned2025-04-20T09:58:23Z
    date available2025-04-20T09:58:23Z
    date copyright10/23/2024 12:00:00 AM
    date issued2025
    identifier otherJPCFEV.CFENG-4755.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4303756
    description abstractThis paper investigates the improvement method and evaluation process for the service performance of a prestressed concrete (PC)-stiffened tied-arch bridge, of which the bearing capacity can be easily degraded due to aging of its components. A reasonable and effective active retrofitting technology is proposed, and high-strength steel strands are used as new pretensioned flexible suspenders, which are added to the original bridge structure through a new connector design. To validate the performance of the retrofitting method, an efficient and stable retrofitting evaluation process is established based on the experimental data obtained from tests carried out on a typical damaged tie-arch bridge in China. To assess the effectiveness of the retrofitting method, the values of the static performance index, dynamic performance index, and pedestrian comfort index before and after retrofitting are compared. Analysis of the results for the static performance index indicate that the retrofitting method can achieve ideal effects and effectively improve the performance of the original concrete stiff hangers, which exhibit excessive tensile stress before retrofitting. The dynamic performance demonstrates that the retrofitting method can improve the structural stiffness and effectively alleviate the excessive dynamic response of the original bridge. Furthermore, the pedestrian comfort index is improved after retrofitting. Overall, the proposed approach of this paper can effectively aid in the management and maintenance of a PC-stiffened tied-arch bridge.
    publisherAmerican Society of Civil Engineers
    titlePretensioning Suspender System for Performance Improvement of a Tied-Arch Bridge with PC Stiff Hangers
    typeJournal Article
    journal volume39
    journal issue1
    journal titleJournal of Performance of Constructed Facilities
    identifier doi10.1061/JPCFEV.CFENG-4755
    journal fristpage04024053-1
    journal lastpage04024053-17
    page17
    treeJournal of Performance of Constructed Facilities:;2025:;Volume ( 039 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
    نرم افزار کتابخانه دیجیتال "دی اسپیس" فارسی شده توسط یابش برای کتابخانه های ایرانی | تماس با یابش
    yabeshDSpacePersian