Spirally Confined Reinforcing Bar for Flexural Behavior of Glass Fiber-Reinforced Concrete Beam

被引：1

作者：

Mohammed, Nuria S. ^{[1
]}

Fadiel, Ashraf A. M. ^{[1
]}

Rahman, Ahmad Baharuddin Abdul ^{[2
]}

Ali, Esam Abu Baker ^{[3
]}

Abu-Lebdeh, Taher ^{[4
]}

Kantaros, Antreas ^{[5
]}

Petrescu, Florian Ion Tiberiu ^{[6
]}

机构：

[1] Omar Al Mukhtar Univ, Dept Civil Engn, POB 919, El Beida, Libya

[2] Univ Teknol Malaysia, Fac Civil Engn, Dept Struct & Mat, Johor Baharu 81310, Johor, Malaysia

[3] Univ Teknol Malaysia, Fac Mech Engn, Johor Baharu 81130, Johor, Malaysia

[4] North Carolina A&T State Univ, Dept Civil Architectural & Environm Engn, Greensboro, NC 27411 USA

[5] Univ West Attica, Dept Ind Design & Prod Engn, Athens 12244, Greece

[6] Natl Univ Sci & Technol POLYTECHN Bucharest, Dept Mech & Robots Theory, Bucharest 060042, Romania

来源：

JOURNAL OF COMPOSITES SCIENCE | 2025年 / 9卷 / 04期

关键词：

flexural; beams; GFRP bar; anchor system; confinement; ultimate strength; bond strength; BOND; PERFORMANCE; ANCHORAGE; CONNECTOR; STRENGTH; STIRRUPS; MEMBERS;

D O I：

10.3390/jcs9040149

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

This paper presents experimental results on the influence of the spiral anchor system on the flexural behavior of concrete beams reinforced with glass fiber-reinforced plastic (GFRP) bars. The experimental program consisted of eight beams with the spiral anchor system and two control fiber-reinforced concrete beams without any spiral anchor system. All specimens were tested under bending load. Rough and smooth surface textures of GFRP bars were considered. The test parameters were the diameter of spiral anchor and the condition of the GFRP reinforcement bars as either bonded or unbonded to the surrounding grout. The experimental results indicate that beams reinforced with a rough GFRP bar with an anchor system under flexural load had higher ultimate flexural strength, first crack strength, and stiffness as compared to the beams without an end anchor system. The success of the anchor system is attributed to the confining effect of the steel spiral in anchoring the reinforcement ends. This confining effect enhances the anchorage capacity of the anchor system and subsequently improves the overall flexural performance of the reinforced concrete beams.

引用

页数：19

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