Analysis of Biaxial Flexural-Compression Diagrams and Moment-Curvature Relationships for Reinforced Concrete Sections Using the Fiber Method

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Marco Cevallos Rosales

Abstract

The design of structural columns and walls subjected to axial loads and bending moments is a complex process prone to errors. To address these challenges, programmable numerical methods have been implemented using commercial programming languages. This study aims to analyze the flexural-compression behavior of reinforced concrete sections through the fiber method. Computational simulations were conducted using MATLAB, incorporating Mander's stress-strain curves for concrete and Park's model for steel, as well as simplified models such as the bilinear steel model and Whitney’s rectangular stress block for concrete. The results demonstrate that advanced material constitutive models more accurately represent the actual behavior of reinforced concrete sections compared to simplified design models.

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How to Cite
Cevallos RosalesM. (2025). Analysis of Biaxial Flexural-Compression Diagrams and Moment-Curvature Relationships for Reinforced Concrete Sections Using the Fiber Method. AXIOMA, 1(33), 9-23. https://doi.org/10.26621/ra.v1i33.986
Section
INGENIERÍA, INDUSTRIA Y CONSTRUCCIÓN

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