Behavior and Strength Prediction of Concrete Beams reinforced with GFRP Bars and subjected to High Temperature
Received: 31 October 2024 | Revised: 21 November 2024 | Accepted: 25 November 2024 | Online: 2 February 2025
Corresponding author: Maan Hatam Saeed
Abstract
The behavior and strength prediction of concrete beams reinforced with Glass Fiber-Reinforced Polymer (GFRP) bars at high-temperature conditions are examined in this work. Twelve beams burnt at 500°C and 700°C were reviewed as part of the experimental methods, and were contrasted with four more unburned beams. The parameters chosen in this study consist of the type of main bar material, protection type against fire, concrete cover thickness, and the burning temperature. The experimental results indicate that the stiffness of all samples diminishes with rising burning temperatures. This is attributable to the degradation of concrete during the fire being exposed to, leading to an increase in beam deflection under the same load. The plastering of 1 cm was better than the fire-resistant dye as a form of protection against burning, while All beams experienced flexural failure.
Keywords:
ASTM E119, plastering, fire resistant dye, elevated temperature, GFRP bars, burningDownloads
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