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http://dx.doi.org/10.12989/csm.2018.7.2.111

A controlled destruction and progressive collapse of 2D reinforced concrete frames  

El houcine, Mourid (Universite de Tahri Mohamed-Bechar)
Said, Mamouri (Universite de Tahri Mohamed-Bechar)
Adnan, Ibrahimbegovic (Universite de Technologie Compiegne/Sorbonne universites)
Publication Information
Coupled systems mechanics / v.7, no.2, 2018 , pp. 111-139 More about this Journal
Abstract
A successful methodology for modelling controlled destruction and progressive collapse of 2D reinforced concrete frames is presented in this paper. The strategy is subdivided into several aspects including the failure mechanism creation, and dynamic motion in failure represented with multibody system (MBS) simulation that are used to jointly capture controlled demolition. First phase employs linear elasto-plastic analysis with isotropic hardening along with softening plastic hinge concept to investigate the complete failure of structure, leading to creation of final failure mechanism that behaves like MBS. Second phase deals with simulation and control of the progressive collapse of the structure up to total demolition, using the nonlinear dynamic analysis, with conserving/decaying energy scheme which is performed on MBS. The contact between structure and ground is also considered in simulation of collapse process. The efficiency of the proposed methodology is proved with several numerical examples including six story reinforced concrete frame structures.
Keywords
complete collapse; multibody system; plastic joint; geometrically exact beam; energy conserving/decaying scheme; contact;
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Times Cited By KSCI : 2  (Citation Analysis)
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