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Title |
Concrete Shear Strength of Lightweight Concrete Beam Reinforced with FRP Bar
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Authors |
진민호 ; 김충호 ; 손병락 ; 이승 ; 장희석 |
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Keywords |
FRP 바 ; 경량콘크리트 ; 콘크리트 전단강도 ; 전단강도보정계수 FRP bar ; lightweight concrete ; concrete shear strength ; shear strength correction factor |
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Abstract |
Recently, research of FRP bar as an alternative reinforcing material in reinforced concrete structures has increased to get an innovative solution to the corrosion problem. In addition to the noncorrosive nature of FRP materials, they also have a high strength-to-weight ratio. Therefore, when lightweight concrete reinforced with FRP bar is used in marine environment, for instance floating structures, some advantages can be expected. But researches for the lightweight concrete structure using FRP bar as a flexural reinforcement are limited to date. In this paper, the concrete shear contribution of the lightweight concrete beam reinforced with FRP bar was studied. Experiment for beams with varying concrete compressive strengths and flexural reinforcement ratios was conducted and analysed. The experimental results showed that 75% of values obtained from proposed equation in preceding research are well agreed with the test results and give better results than the ones predicted by the ACI 440.1R-06 and ISISMO3-01 codes.
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