Experimental Study on Cumulative Damage Behavior of Steel-Reinforced Concrete Columns

Table 4

P₃/P₁ and P₁₀/P₁ of specimens with different displacement angles.

Specimen	Displacement angle (%)	P3/P1	P10/P1
SRC1	1.0	0.984	0.984
	1.5	0.973	0.940
	2.0	0.940	0.877
	2.5	0.941	0.786
SRC2	1.0	0.964	0.950
	1.5	0.967	0.945
	2.0	0.965	0.924
	2.5	0.962	0.885
	3.0	0.944	—
SRC3	1.0	0.967	0.964
	1.5	0.971	0.951
	2.0	0.981	0.973
	2.5	0.984	0.936
	3.0	0.973	0.703
SRC4	1.0	0.989	0.976
	1.5	0.985	0.963
	2.0	0.983	0.937
	2.5	0.974	0.739
SRC5	1.0	0.989	0.997
	1.5	0.990	0.991
	2.0	0.977	0.956
	2.5	0.968	0.907
	3.0	—	—
SRC6	1.0	0.993	0.993
	1.5	0.986	0.984
	2.0	0.973	0.952
	2.5	0.949	0.847
	3.0	—	—
SRC1-2	1.0	0.972	—
	1.5	0.965	—
	2.0	0.950	—
	2.5	0.942	—
	3.0	0.935	—
SRC4-2	1.0	0.980	—
	1.5	0.964	—
	2.0	0.954	—
	2.5	0.951	—
	3.0	0.962	—

Note. Specimen SRC3 is cycled for 8 times at the displacement angle of 3%, and in the table 0.703 = P₈/P₁.