Parametric study on shear capacity of circular-hole and long-hole perfobond shear connector

Shuangjie Zheng, Yuqing Liu*, Teruhiko Yoda, Weiwei Lin

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    101 Citations (Scopus)


    Perfobond connectors are a certain type of shear connectors used in steel and concrete composite structures. In composite bridges with narrow connector distances or shallow rib heights, it is unfavorable to enhance shear connection by using large circular-hole perfobond connectors. To solve this problem, an alternative perfobond connector was developed by making long-holes on steel rib plates. In this paper, 21 push-out specimens were fabricated and loaded to failure. The main objective was to compare the failure mode, shear capacity and slip behavior of perfobond connectors using circular-holes and long-holes. Furthermore, 87 nonlinear finite element simulations were performed to further study the effects of hole geometry and concrete strength. The parametric results were generated to evaluate the shear capacity equations for perfobond connectors. Finally, an analytical model was proposed to predict the shear strength of both circular-hole and long-hole perfobond connectors.

    Original languageEnglish
    Pages (from-to)64-80
    Number of pages17
    JournalJournal of Constructional Steel Research
    Publication statusPublished - 2016 Feb 1


    • Circular-hole
    • Composite bridge
    • Long-hole
    • Perfobond connector
    • Shear resistance

    ASJC Scopus subject areas

    • Building and Construction
    • Civil and Structural Engineering
    • Mechanics of Materials
    • Metals and Alloys


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