Investigating the Influence of Transverse Reinforcement Configuration on the Torsional Behavior of GFRP-Reinforced Concrete Beams: An Experimental and Numerical Analysis

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-09-07 DOI:10.1007/s12205-024-2218-6

Dang Dung Le, Huy-Cuong Nguyen, Tuan-Anh Nguyen, Xuan Huy Nguyen

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Abstract

This study investigates the influence of various transverse reinforcement configurations on the torsional performance of glass fiber reinforced plastic (GFRP) reinforced concrete beams. A comprehensive experimental investigation includes five specimens, each characterized by unique transverse reinforcement designs in terms of stirrup spacing and inclination angles. The implementation of transverse torsional reinforcements within the beams exhibited a remarkable post-cracking hardening response, contributing to enhanced strength recovery. The experimental findings are subsequently compared with a reliable three-dimensional finite element model developed using the ABAQUS software. Finally, a parametric study is conducted to examine the influence of concrete and GFRP bar strength, along with longitudinal and transverse reinforcement ratios, on the torsional behavior of GFRP reinforced concrete beams. The results emphasize the significant impact of concrete tensile strength and transverse reinforcement on the cracking torque, while the parameters related to longitudinal reinforcement have only marginal effects.

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研究横向钢筋配置对 GFRP 加固混凝土梁扭转行为的影响：实验和数值分析

本研究探讨了各种横向加固配置对玻璃纤维增强塑料（GFRP）加固混凝土梁抗扭性能的影响。综合实验调查包括五个试样，每个试样在箍筋间距和倾斜角度方面都采用了独特的横向加固设计。在横梁中采用横向扭转加固后，出现了显著的开裂后硬化反应，有助于增强强度恢复。实验结果随后与使用 ABAQUS 软件开发的可靠三维有限元模型进行了比较。最后，进行了一项参数研究，以检验混凝土和 GFRP 钢筋强度以及纵向和横向配筋比对 GFRP 加固混凝土梁扭转行为的影响。研究结果表明，混凝土抗拉强度和横向配筋对开裂扭矩有显著影响，而与纵向配筋相关的参数则影响甚微。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.