Abstract：In order to investigate the seismic performance of steel reinforced concrete columns under tension-flexure-shear actions, a total of 13 specimens with varying parameters of shear span ratios, eccentricities and axial pull ratios were designed and tested under reversed cyclic loading.The failure process and pattern were observed.The load-displacement hysteretic loops and characteristic values were obtained.Based on the experimental data, bearing capacity, displacement ductility, energy dissipation, stiffness degradation and damage quantitative were analyzed.The experimental results demonstrate that the failure patterns of specimens present as bending failure, tension-bending failure and tension-bending-shear failure.The hysteretic curves were approximated as a plump spindle shape.The damage index of all specimens is between 0.804-0.963 at the state of failure.With the increment of shear span ratio, ductility and energy dissipation capacity increases, the ultimate bearing capacity decreases significantly and the damage index decreases by 11.55%. With the increment of the axial pull ratios and eccentricity, the ultimate bearing capacity increases, ductility and energy dissipation capacity decreases and the damage index increases.It is concluded that the steel reinforced concrete columns under tension-flexure-shear action have good seismic performance.
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