Dynamic condition assessment of composite structures using different damage indices

X. Q. Zhu

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    Abstract

    ![CDATA[In aging structures, the condition of shear connectors may not be acceptable due to corrosion and/or overloading. Damage or failure of shear connectors will deteriorate the composite action, and therefore reduce the bridge load-carrying capacity. Before retrofitting/strengthening these existing structures, one may be required to detect the integrity of the existing shear connectors. The inaccessibility of the connection system makes direct inspection difficult. In addition, the huge number of shear connectors prevents any local non-destructive testing methods to access the connectors one by one. It is of practical importance to develop a new non-destructive assessment technique to detect the integrity of shear connectors. In this study, two different damage indices are used to evaluate the condition of the shear connection system. A scale composite bridge model has been tested in the laboratory. Different damage scenarios have been created by loosening different shear connectors. Experimental results illustrated that the method is effective and reliable to detect the damage in the connection system of steel-concrete composite structures.]]
    Original languageEnglish
    Title of host publicationProceedings of the 11th International Conference on Advances in Steel-Concrete Composite Structures (ASCCS 2015), December 3-5, 2015, Tsinghua University, Beijing, China
    PublisherASCCS
    Pages597-602
    Number of pages6
    Publication statusPublished - 2015
    EventInternational Conference on Advances in Steel-Concrete Composite Structures -
    Duration: 3 Dec 2015 → …

    Conference

    ConferenceInternational Conference on Advances in Steel-Concrete Composite Structures
    Period3/12/15 → …

    Keywords

    • composite construction
    • composite materials
    • reinforced concrete

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