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Nonlinear Analysis of Reinforced Concrete Slabs atElevated Temperature
التحليل اللاخطي للسقوف الخرسانية المسلحة عند الدرجات الحرارية العالية

Authors: Ahmed Hadee Said --- . Ayad A. Abdul -Razzak
Journal: Iraqi Journal of Civil Engineering المجلة العراقية للهندسة المدنية ISSN: 19927428 Year: 2011 Volume: 7 Issue: 1 Pages: 42-51
Publisher: University of Anbar جامعة الانبار

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Abstract

Abstract
In this paper a nonlinear finite element analysis is presented to simulate the fire resistance of reinforced concrete slabs at elevated temperatures. An eight node layered degenerated shell element utilizing Mindlin/Reissner thick plate theory with initial stiffness technique is employed. The proposed model considered cracking, crushing, and yielding of concrete and steel at high temperatures. More complicated phenomena like concrete transient thermal strain and concrete spalling are excluded in the present analysis. The validation of the proposed model is examined against experimental data of previous researches and shows good agreement.

Keywords: Fire resistance, Material nonlinearity, Reinforced Concrete Slabs

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