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http://dx.doi.org/10.4334/JKCI.2002.14.5.677

Modeling and Parametric Studies on Moment-Curvature Relation of a Reinforced Concrete Column Subject In Axial-toad and Bi-Axil Moment  

이차돈 (중앙대학교 건축공학과)
최기봉 (경원대학교 건축공학과)
차준실 (동양구조안전기술)
김성진 (중앙대학교 건축공학과)
Publication Information
Journal of the Korea Concrete Institute / v.14, no.5, 2002 , pp. 677-688 More about this Journal
Abstract
A analytical model is developed which can simulate a complete inelastic biaxial moment-curvature relations of a reinforced concrete column. The model can simulate sudden drop in moment capacity after peak moment and due to spalling of cover concrete. Parametric studies are performed examine the effects of constituent material properties as well as topological arrangement of reinforcements on moment-curvature relations and P-M interaction curve. It has been analytically observed that ductility of a reinforced concrete column is influenced mostly by magnitude of the axial load and spacings or the volume of lateral reinforcements. Compared to ACI P-M interaction curve, overall increase about 10％ in square root of sum of squares of axial force and moment, and about 20％ in peak load are observed for the columns reinforced according to ACI seismic design code.
Keywords
biaxial; column; confinement; modeling; parametric studies;
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