Flexural behavior of UHPCbeam reinforced with steel-FRP composite bars

Ebrahim M.A. Abbas; Yue Ge; Zhiwen Zhang; Yiwen Chen; Ashraf Ashour; Wenjie Ge; Rong Tang; Zhongping Yang; Ebrahim Y. Khailah; Shan Yao; Chuanzhi Sun

Case Studies in Construction Materials (Jun 2022)

Flexural behavior of UHPCbeam reinforced with steel-FRP composite bars

Ebrahim M.A. Abbas,
Yue Ge,
Zhiwen Zhang,
Yiwen Chen,
Ashraf Ashour,
Wenjie Ge,
Rong Tang,
Zhongping Yang,
Ebrahim Y. Khailah,
Shan Yao,
Chuanzhi Sun

Affiliations

Ebrahim M.A. Abbas: College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China
Yue Ge: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China
Zhiwen Zhang: College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China
Yiwen Chen: College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China
Ashraf Ashour: School of Engineering, University of Bradford, Bradford BD7 1DP, UK
Wenjie Ge: College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China; Jiangsu Province Engineering Research Center of Prefabricated Building and Intelligent Construction, Suqian 223800, China; Corresponding author at: College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China.
Rong Tang: College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China
Zhongping Yang: Gansu Engineering Design Research Institute Co., LTD., Lanzhou 730030, China
Ebrahim Y. Khailah: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China
Shan Yao: Gansu Engineering Design Research Institute Co., LTD., Lanzhou 730030, China
Chuanzhi Sun: Jiangsu Province Engineering Research Center of Prefabricated Building and Intelligent Construction, Suqian 223800, China

Journal volume & issue: Vol. 16
p. e01110

Abstract

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This paper numerically investigates flexural performance of Ultra-High Performance Concrete (UHPC) beam reinforced with Steel-Fibre-Reinforced Polymer (FRP) Composite Bars (SFCBs) in terms of flexural stiffness, moment capacity, deflection, ductility and energy dissipation. The effect of various parameters, include the inner steel core area ratio of SFCB, yield strength of inner steel core, elastic modulus and ultimate strength of outer-wrapped FRP, reinforcement ratio, type and strength of concrete were studied. The results demonstrate that the inner steel core area ratio of SFCB, reinforcement ratio and the elastic modulus of SFCB's outer FRP have significant effect on the overall flexural performance of SFCB reinforced UHPC beam. The overall flexural performance of SFCB reinforced UHPC beam is slightly improved by increasing the yield strength of inner steel core of SFCB, but not affected by the ultimate strength of SFCB's outer FRP when specimen occurred compression failure. The results also exhibit that the flexural performance of UHPC beam reinforced with SFCBs is significantly improved when compared to those of reinforced high strength concrete (HSC) beam and normal strength concrete (NSC) beam. The flexural stiffness and the moment capacity of SFCB reinforced UHPC beam at the ultimate point were 2.0 and 2.4 times, respectively, of those of reinforced NSC counterpart.

Published in Case Studies in Construction Materials

ISSN: 2214-5095 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/case-studies-in-construction-materials

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