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Steel and Composite Structures Volume 42, Number 3, February10 2022 , pages 289-298 DOI: https://doi.org/10.12989/scs.2022.42.3.289 |
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Structural behavior of steel beams strengthened with CFRP strips and cables |
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Donghwan Lim
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Abstract | ||
In the present study, structural behavior of steel beams strengthened with CFRP strips and cables was investigated by a series of experiments. For this purpose, two groups of experimental studies were carried out: one for the beam series strengthened only with CFRP strips and the other for the steel beam series strengthened with CFRP strips and prestressed wires. From this test, it is found that the flexural stiffness and strength of the steel beams strengthened with CFRP strips and cables were significantly improved comparing to the un-strengthened one. Three failure modes such as sudden de-bonding, splitting and rupturing of CFRP strips were observed. The ultimate tensile strains of attached CFRP strips on the steel beams were noticed in the range between 8,000µε and 11,000µε and this result disclose the perfect composite reaction CFRP strips and steel beams. | ||
Key Words | ||
carbon fiber reinforced plastic (CFRP) strips; prestressed cables; steel beam | ||
Address | ||
Department of Civil Engineering, Dongseo University, San 69-1, Churae 2 dong, Sasang ku, Busan 617-716, South Korea | ||