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    Behaviours of circular CFDST with stainless steel external tube: Slender columns and beams

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    Publication date
    2021-01
    Author
    Zhao, H.
    Wang, R.
    Lam, Dennis
    Hou, C-C
    Zhang, R.
    Keyword
    Stainless steel
    Concrete filled double steel tubular
    Compression
    Bending
    Hollow ratio
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    In this work, experimental and numerical investigations were performed on the behaviours of circular concrete filled double steel tubular (CFDST) slender columns and beams, in which the external tube employed stainless steel tube. Eighteen specimens, 12 slender columns and 6 beams, were tested to obtain the failure patterns, load versus deflection relationships and strain developments of stainless steel tube. A finite element (FE) model was developed and verified by experimental results. The validated FE model was then employed to investigate the effects of key parameters, including hollow ratio, eccentric ratio and material strength, on the load-carrying capacity. The load distribution among the components and contact stress between steel tube and sandwiched concrete were also analyzed. Finally, the design methods for CFDST, hollow CFST and solid CFST members with carbon steel external tube respectively suggested by Han et al. (2018), Chinese GB 50936-2014 (2014) and AISC 360-16 (2016) were employed to evaluate their applicability for the circular CFDST slender columns and beams with stainless steel outer tube.
    URI
    http://hdl.handle.net/10454/18141
    Version
    No full-text in the repository
    Citation
    Zhao H, Wang R, Lam D et al (2021) Behaviours of circular CFDST with stainless steel external tube: Slender columns and beams. Thin-Walled Structures, 158: 107172.
    Link to publisher’s version
    https://doi.org/10.1016/j.tws.2020.107172
    Type
    Article
    Collections
    Engineering and Informatics Publications

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