Progressive Collapse Potential of Ordinary Moment Resisting R/C Frames
Ahmed N. Khater, Fouad B. A. Beshara, Ahmed A. Mahmoud, Osama O. El-Mahdy
Journal of Engineering Research and Reports · pp. 1–13 · Published 22 Oct 2019
10.9734/jerr/2019/v7i416975Abstract
A nonlinear numerical procedure in joint with suitable constitutive concrete and steel models is proposed to simulate the structural behavior and progressive collapse potential of ordinary moment-resisting frames exposed to a middle column removal scenario. Previous experimental results are used to verify the proposed non-linear finite element modelling using ANSYS program. The geometrical discretization of the ANSYS in accordance with concrete and reinforcing steel bars constitutive models have been employed in the suggested approach. The proposed numerical model succeeded in simulating the pre-peak and post-peak behavior in addition to the catenary action stage until reaching the failure of ordinary frames specimens. Numerical predictions are given for the cracking patterns, load-deflection curves, and steel strain-deflection relations.
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