Experimental study on impact force factor during sudden cable loss in cable-stayed bridges

Vu Hoang, Osamu Kiyomiya, Tongxiang An

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Cable element plays an important role in cable structures including cable supported long span bridges. To increase structural robustness and prevent progressive collapse, cable in cable-stayed bridge is generally designed with sufficient redundancy. However, in some extreme events, the cable can be abruptly broken. Impact force factor of 2.0 is suggested by the PTI's "Recommendations for Stay Cable Design, Testing and Installation". This study seriously placed the cable loss phenomenon under consideration. Firstly, description of impact force factor and classification of cable loss event were discussed. Secondly, rod breaking experiment was carried out to determine the values of impact force factor in three breaking patterns; remarkable behaviours of the specimens were also highlighted via strain waves obtain from the tests. Finally, recommendations for appropriate impact factor and approach method for this relatively new field of study were issued.

    Original languageEnglish
    Title of host publicationSafety, Robustness and Condition Assessment of Structures
    PublisherInternational Association for Bridge and Structural Engineering (IABSE)
    Pages252-259
    Number of pages8
    Publication statusPublished - 2015
    EventIABSE Workshop on Safety, Robustness and Condition Assessments of Structures - Helsinki, Finland
    Duration: 2015 Feb 112015 Feb 12

    Other

    OtherIABSE Workshop on Safety, Robustness and Condition Assessments of Structures
    CountryFinland
    CityHelsinki
    Period15/2/1115/2/12

    Keywords

    • Cable loss
    • Cable-stayed bridge
    • Impact force factor
    • Rod breaking experiment
    • Structural redundancy

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Building and Construction
    • Safety, Risk, Reliability and Quality

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  • Cite this

    Hoang, V., Kiyomiya, O., & An, T. (2015). Experimental study on impact force factor during sudden cable loss in cable-stayed bridges. In Safety, Robustness and Condition Assessment of Structures (pp. 252-259). International Association for Bridge and Structural Engineering (IABSE).