Abstract
This paper presents a new constitutive model of cracked RC plates subjected to combined axial and shear stress. First, we carried out reversed cyclic shear load test where reinforcement ratio of RC plates and axial stress values were set as parameters. Pre-cracks were generated by tensile stress, and reversed cyclic shear loads were applied under the specified axial stress. Then, based on the test results, we obtained the constitutive model for smeared crack model, where shear stiffness of the plate varied depending on shear strain and axial strain. By adopting proposed model into nonlinear FEM analysis program, analysis results were improved and the efficiency of the model was validated.
