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    Seismic response of prestressed precast reinforced concrete beam-column joints assembled by steel sleeves

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    Publication date
    2023-02
    End of Embargo
    2023-12-05
    Author
    Xue, H.
    Ashour, Ashraf F.
    Ge, W.
    Cao, D.
    Sun, C.
    Cao, S.
    Keyword
    Beam-column joint
    Steel sleeve
    Prestressed precast
    Seismic performance
    Shear capacity
    Rights
    © 2022 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
    Peer-Reviewed
    Yes
    Open Access status
    embargoedAccess
    
    Metadata
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    Abstract
    A novel prestressed precast reinforced concrete (RC) beam-column joint, composed of prestressed tendons, stiffened steel sleeves, and high-strength bolts, having improved self-centring ability and assembly efficiency is proposed in this paper. Four prestressed precast RC joints assembled by steel sleeves and one cast-in-place RC joint were tested under cyclic loading to investigate the seismic response of the proposed joint. The main parameters studied are the axial compression ratio of columns, stirrup ratio in the core area of the proposed joint and effective prestress of tendons. The energy dissipation capacity, bearing capacity, and self-centring ability of the prestressed precast RC beam-column joints assembled by steel sleeves are higher than those measured for the cast-in-place RC joint. For the prestressed precast RC joints assembled by steel sleeves, both yield and ultimate displacements increase with the increase of the axial compression ratio, stirrup ratio and effective prestress, but the ductility decreases with the increase of the axial compression ratio and effective prestress. The increasing of axial compression ratio can lead to an increase in the energy dissipation capacity, shear capacity and residual displacement. Finally, formulae to predict the shear capacity of prestressed precast RC joint assembled by steel sleeves are proposed, being in good agreement with the experimental results.
    URI
    http://hdl.handle.net/10454/19203
    Version
    Accepted manuscript
    Citation
    Xue H, Ashour AF, Ge W et al (2023) Seismic response of prestressed precast reinforced concrete beam-column joints assembled by steel sleeves. Engineering Structures. 276: 115328.
    Link to publisher’s version
    https://www.sciencedirect.com/journal/engineering-structures
    Type
    Article
    Notes
    The full-text of this article will be released for public view at the end of the publisher embargo on 5th Dec 2023.
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    Engineering and Informatics Publications

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