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    Numerical studies on the seismic responses of bridge structures with precast segmental columns

    Access Status
    Fulltext not available
    Authors
    Zhao, L.
    Bi, Kaiming
    Hao, Hong
    Li, X.
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Zhao, L. and Bi, K. and Hao, H. and Li, X. 2017. Numerical studies on the seismic responses of bridge structures with precast segmental columns. Engineering Structures. 151.
    Source Title
    Engineering Structures
    DOI
    10.1016/j.engstruct.2017.08.018
    ISSN
    0141-0296
    School
    Department of Civil Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/DP150104346
    URI
    http://hdl.handle.net/20.500.11937/57673
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 Recently, extensive experimental and numerical studies have been carried out to understand the seismic behaviors of segmental columns. Very limited studies, however, focused on the seismic performances of a whole bridge system with precast segmental columns. This paper carries out numerical studies on the seismic responses of bridge structures with precast segmental columns. For comparison, the seismic responses of the bridge with conventional monolithic columns are also calculated. The two-dimensional (2 D) finite element (FE) models of these two bridge types are developed by using the FE code OpenSEES. The segmental column and monolithic column are simulated by the simplified lumped-mass model and fiber-based model respectively and validated by the previous experimental studies. The calibrated column models are then incorporated into the whole bridge structures to calculate the structural responses. The influences of pounding, frequency ratio and gap size on the structural responses are investigated and discussed. Numerical results show that the bridges supported by the segmental columns or monolithic columns have very different seismic responses.

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