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Title |
Shear Behavior of Reinforced Concrete Structural Walls Subjected to Eccentric Axial Compression
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Authors |
엄태성(Tae-Sung Eom) ; 박은진(Park, Eun-Jin) ; 이승제(Seung-Jae Lee) |
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DOI |
https://doi.org/10.4334/JKCI.2019.31.1.011 |
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Keywords |
전단실험 ; 구조벽 ; 전단강도 ; 편심하중 ; 철근콘크리트 shear test ; structural wall ; shear strength ; eccentric loads ; reinforced concrete |
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Abstract |
In this study, the results of an experimental investigation of the shear behavior of reinforced concrete structural walls subjected to eccentric compression loads are presented. Shear tests of six cantilever walls with a aspect ratio 2.0 were performed. The magnitude and eccentricity of the axial loads applied to the walls were considered as the test parameters. The tests showed that the failure mode and shear strength of the eccentrically loaded walls are significantly affected by the eccentricity. As the eccentricity increases, the failure mode changes from diagonal tension failure in the web to flexure-shear cracking failure, which results in a decrease in shear strength. The test strengths were compared with the shear strengths predicted in accordance with the provisions of ACI 318-14 and KCI 2012. Results indicate that the existing methods for walls and columns, based on diagonal tension and flexure-shear cracking failures, significantly underestimate the shear strengths of the eccentrically loaded walls.
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