Experimental tests on reinforced concrete columns under biaxial quasi-static loading

Seven specimens of reinforced concrete column subjected to biaxial loading were investigated in this paper. The strength and stiffness degradation under different load path is analyzed, and the accumulative hysteresis dissipated energy and damage indexes were calculated on the basis of test results. Six types of biaxial load path commonly used nowadays were selected and applied for the specimens. Displacement control was adopted as the loading mode in this study.