Experimental Evaluation of Effect Factors on Seismic Performance of Concrete Columns Reinforced with HTRB630 High-Strength Steel Bars

International Journal of Concrete Structures and Materials

Table 1 Parameters of specimens.

Specimen		Concrete grade	Axial load ratio n	Axial force N (kN)	Shear-span λ	A_s	Longitudinal reinforcement ratio ρ (%)	A_sv	Stirrup ratio ρ_sv (%)
Number	Name	Concrete grade	Axial load ratio n	Axial force N (kN)	Shear-span λ	A_s	Longitudinal reinforcement ratio ρ (%)	A_sv	Stirrup ratio ρ_sv (%)
1	T45-1	C45	0.10	201	5.58	4D14	0.985	C8@100(2)	1.100
2	T60-1	C60	0.25	641	5.58	4D14	0.985	C8@100(2)	1.100
3	T45-2	C45	0.25	502	5.58	4D14	0.985	C8@100(2)	1.100
4	H45-1	C45	0.10	201	5.63	4C18	1.630	C8@100(2)	1.160
5	H45-2	C45	0.25	502	5.63	4C18	1.630	C8@100(2)	1.160
6	H60-1	C60	0.25	641	5.63	4C18	1.630	C8@100(2)	1.160
7	T45-3	C45	0.10	201	5.58	4D14	0.985	D8@150(2)	0.736
8	T45-4	C45	0.25	502	5.58	4D14	0.985	D8@150(2)	0.736
9	T60-2	C60	0.25	641	5.58	4D14	0.985	D8@150(2)	0.736
10	T45-5	C45	0.25	502	5.58	4D14	0.985	D8@100(2)	1.100
11	T60-3	C60	0.25	641	5.58	4D14	0.985	D8@100(2)	1.100
12	T60-4	C60	0.25	641	5.58	4D14	0.985	C8@50(2)	2.210
13	T60-5	C60	0.25	641	5.58	4D14	0.985	D8@75(2)	1.470