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  • Progressive Collapse Resistance Demand of Reinforced Concrete Frames Under Catenary Mechanism

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    Author(s)
    Li, Yi
    Lu, Xinzheng
    Guan, Hong
    Ye, Lieping
    Griffith University Author(s)
    Guan, Hong
    Year published
    2014
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    Abstract
    Progressive collapses are resisted by the catenary mechanism in reinforced concrete (RC) frame structures undergoing large deformations. Research to date has mainly focused on the nonlinear dynamic progressive collapse resistance demand of this type of structures under the beam mechanism (that is, for small deformations), and that the catenary mechanism is lacking. As a first attempt, this study establishes a dynamic amplification factor for evaluating the resistance demands of RC frames under the catenary mechanism. To achieve this, an energy-based, theoretical framework is proposed for calculating the aforementioned demands. ...
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    Progressive collapses are resisted by the catenary mechanism in reinforced concrete (RC) frame structures undergoing large deformations. Research to date has mainly focused on the nonlinear dynamic progressive collapse resistance demand of this type of structures under the beam mechanism (that is, for small deformations), and that the catenary mechanism is lacking. As a first attempt, this study establishes a dynamic amplification factor for evaluating the resistance demands of RC frames under the catenary mechanism. To achieve this, an energy-based, theoretical framework is proposed for calculating the aforementioned demands. Based on this framework, the analytical solution for the collapse resistance demands of regular RC frames under the catenary mechanism is readily obtained. Numerical validation indicates that the proposed equations can accurately describe the progressive collapse demand of RC frames undergoing large deformations.
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    Journal Title
    ACI Structural Journal
    Volume
    111
    Issue
    5
    Publisher URI
    http://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&i=51687029
    Copyright Statement
    © 2014 American Concrete Institute. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
    Subject
    Civil engineering
    Structural engineering
    Building
    Publication URI
    http://hdl.handle.net/10072/66342
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