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EVALUATION OF THE BEHAVIOR OF HYBRID GFRP/STEEL BARS IN REINFORCED CONCRETE DEEP BEAMS

Article

Last updated: 05 Jan 2025

Subjects

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Tags

Hybrid reinforced concrete deep beams
Deep beam
Web reinforcement ratio of deep beam
Glass fiber reinforced polymer stirrups
EVALUATION OF THE BEHAVIOR OF HYBRID GFRP/STEEL BARS IN REINFORCED CONCRETE DEEP BEAMS
2nd International Conference on Civil Engineering: Recent Applications and Future Challenges
Structural and Construction Engineering

Abstract

In recent years, the use of glass fiber-reinforced polymer (GFRP) as an alternative reinforcing material in concrete structures has emerged as an innovative solution to overcome the corrosion problem. In addition to its non-corrodible nature, GFRP reinforcement presents many advantages such as a high strength-to-weight ratio, ease of handling, and immunity against electrochemical corrosion. This paper presents an experimental study to evaluates the behavior of reinforced concrete deep beams, the deep beams provided with glass fiber reinforced polymer (GFRP) with different ratios (0, 0.25%, 0.40%) as web reinforcement configuration rather than traditional steel web reinforcement. All reinforced concrete deep beams have the same span to depth ratio (a/d) 0.40. The shear behavior of the seven experimental concrete deep beams reinforced in shear with GFRP configuration or with/without steel web reinforcement was investigated in this paper. All top and bottom longitudinal reinforcement are steel bars with the same ratios in all tested beams. The deep beam capacity increased by web reinforcement ratio increase. The type of web reinforcement did not affect the number of bending cracks but affected shear cracks. The energy absorption, stiffness of beam, ductility index, and deformability factor decreases by web reinforcement increase. The results are compared with the traditional ACI design method, strut, and tie model to demonstrate the effect of web reinforcement ratio on capacity.

Categories

Structural and Construction Engineering

Keywords

Hybrid reinforced concrete deep beams, Deep beam, Web reinforcement ratio of deep beam, Glass fiber reinforced polymer stirrups

Volume

ICCE2021 Vol. 2

Issue Date

1 Jan 2021

Publish Date

4 Feb 2022

Link

https://icce2021.conferences.ekb.eg/article_1230.html

Order

39

Publication Type

Conference

Publication Title

2nd International Conference on Civil Engineering: Recent Applications and Future Challenges

Publication Link

https://icce2021.conferences.ekb.eg/

Details

Type

Article

Locale

en

Created At

13 Dec 2022