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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Simplified Method to Analyze Continuous Reinforced Concrete Beams during Fire Exposure
Author(s): S. F. El-Fitiany and M. A. Youssef
Publication: Structural Journal
Appears on pages(s): 145-156
Keywords: elevated temperatures; fire analysis; flexural stiffness; sectional analysis; thermal expansion
Abstract:Structural engineers are in need of analytical tools to evaluate the performance of reinforced concrete (RC) structures during fire events. Existing numerical methods require extensive knowledge of heat transfer calculations and the finite element method. This paper proposes a rational method to track the fire performance of continuous RC beams during ASTM E119 standard fire exposure. The proposed method uses a simplified sectional analysis approach and is based on separating the effects of thermal deformations and vertical loads. The effective flexural stiffness and the thermal deformations of the beam are estimated using simple expressions that are developed based on a comprehensive parametric study.
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