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

IF 1.9 4区工程技术 Q3 ENGINEERING, CIVIL

KSCE Journal of Civil Engineering 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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引用次数: 0

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。

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

KSCE Journal of Civil Engineering ENGINEERING, CIVIL-

CiteScore

4.00

自引率

9.10%

发文量

329

审稿时长

4.8 months

期刊介绍： The KSCE Journal of Civil Engineering is a technical bimonthly journal of the Korean Society of Civil Engineers. The journal reports original study results (both academic and practical) on past practices and present information in all civil engineering fields. The journal publishes original papers within the broad field of civil engineering, which includes, but are not limited to, the following: coastal and harbor engineering, construction management, environmental engineering, geotechnical engineering, highway engineering, hydraulic engineering, information technology, nuclear power engineering, railroad engineering, structural engineering, surveying and geo-spatial engineering, transportation engineering, tunnel engineering, and water resources and hydrologic engineering