Influence of the proportion of FRP to steel reinforcement on the strength and ductility of hybrid reinforced concrete beams

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2023

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Taylor & Francis Ltd

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Civil Engineering
(2000)
The Atılım University Department of Civil Engineering was founded in 2000 as a pioneer for the Departments of Civil Engineering among the foundation schools of Ankara. It offers education in English. The Department of Civil Engineering has an academic staff qualified in all areas of the education offered. In addition to a high level of academic learning that benefits from learning opportunities through practice at its seven laboratories, the Department also offers a Cooperative Education program conducted in cooperation with renowned organizations in the construction sector. Accredited by MÜDEK (Association of Evaluation and Accreditation of Engineering Programs) (in 2018), our Department has been granted the longest period of accreditation to ever achieve through the association (six years). The accreditation is recognized by ENAEE (European Network for Accreditation of Engineering Education), and other international accreditation boards.
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Department of Civil Engineering
Civil Engineering Department of Atılım University, this opportunity can be attained by two Master of Science programs (with thesis or non-thesis). These programs are divided into the following subdivisions: 1) Construction Management, 2) Materials of Construction, 3) Geotechnical Engineering, 4) Hydromechanics and Water Resources Engineering, 5) Structural Engineering and Mechanics, and 6) Transportation Engineering. So, you can find among these alternatives, a subdiscipline that focuses on your interests and allows you to work toward your career goals. Civil Engineering Department of Atılım University which has a friendly faculty comprised of members with degrees from renowned international universities, laboratories for both educational and research purposes, and other facilities like computer infrastructure and classrooms well-suited for a good graduate education.

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Abstract

The present study pertains to the influence of variation of FRP (Fiber Reinforced Polymer) proportion in tension reinforcement on the flexural behavior of RC beams with FRP and steel reinforcing bars. A total of 25 beams, including FRP-, steel- and hybrid FRP-steel reinforced ones, were tested to failure under four-point bending. Two types of FRP bars, GFRP (Glass Fiber Reinforced Polymer) and BFRP (Basalt Fiber Reinforced Polymer), were used and both over- and under-reinforced beams were tested. The beams in each group were designed to have close flexural capacities to fully reveal the effect of FRP proportion in the tension zone on beam ductility for a fixed bending capacity. A new analytical model was developed for estimating the bending capacities of beams. Different deformation and curvature ductility definitions were adopted and an energy-based definition, revealing the expected tendency in beam ductility, was determined. The test results revealed that the presence of even a single FRP bar in the tension zone results in reductions up to 40% in beam ductility as compared to the beam with full steel reinforcement. Each additional replacement of a steel bar with FRP was found to cause a further decrease up to 20% in beam ductility.

Description

Baran, Eray/0000-0002-0240-803X

Keywords

FRP rupture, modulus of toughness, modulus of resilience, deformation ductility index, ultimate deflection, yielding of steel

Turkish CoHE Thesis Center URL

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0

WoS Q

Q3

Scopus Q

Q2

Source

Volume

27

Issue

12

Start Page

3546

End Page

3565

URI

https://doi.org/10.1080/19648189.2022.2143429
 https://hdl.handle.net/20.500.14411/2371

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