Experimental and numerical investigation the effect of concrete strength and area of steel reinforcement on mechanical performance of functionally graded reinforced concrete beams

IF 1.2 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Frattura ed Integrita Strutturale Pub Date : 2023-06-22 DOI:10.3221/igf-esis.65.18
Seleem S. E. Ahmad, Esraa Ali, M. Moawad, Hesham Elemam
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Abstract

In this work, an experimental and numerical program was designed to evaluate the role of compressive strength, Fc, and area of reinforcing steel, As, on the flexural behavior of functionally graded reinforced concrete beams. Eighteen layered sections of reinforced concrete beams were tested with different compressive strengths arrangement and area of main steel. The result showed that the minimum steel reinforcement with higher compressive strength in the compression zone increases load capacity and ductility. The average steel reinforcement with higher strength in the compression zone increases load capacity and decreases ductility. The results also approved that; higher strength in the compression zone can be used in beams with a high tensile steel ratio for decreasing compression steel as an economic side. 3D finite element was executed using ABAQUS to simulate experimental beams. The numerical result showed variation from the experimental but still, the behavior of numerical beams is the same as the experimental.
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试验和数值研究了混凝土强度和钢筋面积对功能级配混凝土梁力学性能的影响
在这项工作中,设计了一个实验和数值程序来评估抗压强度Fc和钢筋面积As对功能梯度钢筋混凝土梁弯曲性能的影响。采用不同的抗压强度布置和主筋面积对18层钢筋混凝土梁进行了试验研究。结果表明,压缩区内抗压强度越高的最小配筋,其承载力和延性越高。在压缩区具有较高强度的普通钢筋增加了承载能力并降低了延性。结果还证实:;在具有高抗拉钢比的梁中可以使用压缩区中的较高强度,以减少压缩钢作为经济方面。利用ABAQUS软件对实验梁进行了三维有限元模拟。数值计算结果与实验结果相比有所变化,但数值梁的行为与实验结果相同。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Frattura ed Integrita Strutturale
Frattura ed Integrita Strutturale Engineering-Mechanical Engineering
CiteScore
3.40
自引率
0.00%
发文量
114
审稿时长
6 weeks
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