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Fiber Reinforced Polymer (FRP) is widely used as an external reinforcement in structural systems to meet flexure and shear strength requirements. However, the strengthening of members subjected to torsion has only recently been investigated. Torsion failure is an unfavorable brittle type of failure that should be avoided, particularly in earthquake-prone areas. The behavior and performance of rectangular reinforced concrete beams reinforced with externally bonded Glass Fibre Reinforced Polymer (GFRP) fabrics subjected to combined flexure and torsion are investigated experimentally in this work.
RC Rectangular beams that were externally connected with GFRP fabrics and were rectangular in shape were tested until they failed using a system that transferred torque to the central portion of the beam through two opposing cantilevers known as moment arms. During the experiment, an equal static loading is applied to each arm. For the study, a total of nine RC beams were cast and evaluated. Every beam was intended to fail in torsion. Eight beams were strengthened utilizing various configurations and GFRP fabric types, with one beam serving as a control beam. The investigation is limited to GFRP fabrics that have been continually wrapped.
Experimental information was gathered on the ultimate and initial cracking loads, twist angle, and failure modes of each of the beams. Investigated were the effects of various GFRP kinds and configurations on the first crack load, ultimate load carrying capability, and failure mode of the beams. Using ANSYS software, the experimental data were finite element analysis confirmed and found to be in good agreement with analytical values. According to the experimental findings, externally bonded GFRP can greatly boost the beam's torsional capability. The full-wrap of GFRP textiles appears to be the most efficient arrangement, according to the results. Additionally, GFRP applied in 45 degree with the beam's axis provides greater strength than GFRP applied in 90 degree with the beam's axis.
"A Study on RCC Beams wrapped with GFRP for torsional Behavior ", International Journal of Science & Engineering Development Research (www.ijrti.org), ISSN:2455-2631, Vol.7, Issue 9, page no.682 - 686, September-2022, Available :http://www.ijrti.org/papers/IJRTI2209090.pdf
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2456-3315 | IMPACT FACTOR: 8.14 Calculated By Google Scholar| ESTD YEAR: 2016
An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 8.14 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator