2축 휨과 축력을 동시에 받는 철근 콘크리트 기둥의 2계 거동에 대한 실험적 연구An Experimental Study on the Second Order Behavior of Reinforced Concrete Columns under Biaxial Loading

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Studies on the second-order analysis of reinforced concrete columns have been chiefly dealt with symmetric section under uniaxial loading. In practical situations, however, columns are subjected to biaxial loadings. Therefore, for more accurate prediction of the behavior of concrete columns under biaxial loading, the interaction between bending moments of major and minor axes should be considered. Recently Kim & Lee proposed a numerical method of predicting the behavior of concrete columns under biaxial loading. In this paper, to investigate the behavior of concrete columns under biaxial loading and verify the validity of proposed method, a series of test were carried out for sixteen tied reinforced columns with 100100mm square and 200100mm rectangular sections under various loading conditions. The length of columns was 1,300mm and the concrete strength was 28MPa. The boundary conditions at the both ends were hinged and end eccentricities were equal(400mm). Proposed numerical analyses applied to the test piece were performed to predict behavior of concrete columns with square and rectangular sections under various loading conditions. Test results were also compared with those using the moment magnifier method in ACI code. The test results showed that the moment magnifier method is conservative.
Publisher
한국콘크리트학회
Issue Date
1997-10
Language
KOR
Citation

1997 한국콘크리트학회 가을 학술대회, pp.603 - 608

URI
http://hdl.handle.net/10203/125056
Appears in Collection
CE-Conference Papers(학술회의논문)
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