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Title |
Experimental Study on Reinforced Concrete Beams Using L-Shaped Steel
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Authors |
오석원(Seok-Won Oh) ; 이주성(Ju-Sung Lee) ; 김성훈(Sung-Hoon Kim) |
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DOI |
https://doi.org/10.4334/JKCI.2022.34.2.111 |
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Keywords |
L-형강; 강재거푸집; 휨강도; 무동바리 L-shaped steel; steel mold; bending strength; non-support |
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Abstract |
This study analyzed the structural behavior of beam members using L-shaped steel, which could be non-support and non-mold members; study also evaluated performance. This study used L-shaped steel as material for main bar and stirrups to improve workability of existing reinforced concrete beam members. Also, a steel plate form was wrapped around the beam and connected with the stirrup to make the whole member behave in an integrated manner. As a result, after analysis of the applicability of the design criteria used in Korea and abroad, the predicted design bending strength presented in the current design criteria was found to be about 5 % lower than the measured value of the bending strength of the target specimens that had the steel mold removed; the bending strength was about 15~18 % lower than that of the specimens that had retained the steel mold, showing a very conservative tendency.
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