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    An evaluation of modelling approaches and column removal time on progressive collapse of building

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    Lam_Journal_of_Constructional_Steel_Research.pdf (1.393Mb)
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    Publication date
    2019-02
    Author
    Stephen, D.
    Lam, Dennis
    Forth, J.
    Ye, J.
    Tsavdaridis, K.D.
    Keyword
    Progressive collapse
    Abnormal loads
    Modelling techniques
    Impact
    Explosions
    Structural response
    Sudden column loss
    Rights
    © 2018 Published by Elsevier Ltd. 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
    
    Metadata
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    Abstract
    Over the last few decades, progressive collapse disasters have drawn the attention of codified bodies around the globe; as a consequence, there has been a renewed research interest. Structural engineering systems are prone to progressive collapse when subjected to abnormal loads beyond the ultimate capacity of critical structural members. Sudden loss of critical structural member(s) triggers failure mechanisms which may result in a total or partial collapse of the structure proportionate or disproportionate to the triggering event. Currently, researchers adopt different modelling techniques to simulate the loss of critical load bearing members for progressive collapse assessment. GSA guidelines recommend a column removal time less than a tenth of the period of the structure in the vertical vibration mode. Consequently, this recommendation allows a wide range of column removal time which produces inconsistent results satisfying GSA recommendation. A choice of a load time history function assumed for gravity and the internal column force interaction affects the response of the structure. This paper compares different alternative numerical approaches to simulate the sudden column removal in frame buildings and to investigate the effect of rising time on the structural response.
    URI
    http://hdl.handle.net/10454/16642
    Version
    Accepted Manuscript
    Citation
    Stephen D, Lam D, Forth J et al (2018) An evaluation of modelling approaches and column removal time on progressive collapse of building. Journal of Constructional Steel Research. 153: 243-253.
    Link to publisher’s version
    https://doi.org/10.1016/j.jcsr.2018.07.019
    Type
    Article
    Collections
    Engineering and Informatics Publications

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