Comparative Study of CFRP-Confined CFST Stub Columns under Axial Compression

Table 1

Comparison of calculations and test results.

Types	Specimens	(mm)	(MPa)	(mm)	(mm^2)	(MPa)	(MPa)	(kN)	(kN)	(kN)	(kN)	/	/	NCFST (kN)	(%)	Sources
a	1–2.5	0.17	1260	2.5	1013.2	350	40.15	1294	859.2	1176.5	1293.7	0.92	1.00	1060.5	22.0	[30]
	1–3.5	0.17	1260	3.5	1440.4	310	40.15	1348	959.1	1285.4	1408.0	0.95	1.04	1175.5	14.7
	1–4.5	0.17	1260	4.5	1880.2	310	40.15	1698	1103.6	1446.2	1575.6	0.85	0.93	1341.7	26.0
	2–2.5	0.34	1260	2.5	1013.2	350	40.15	1506	859.2	1293.3	1430.9	0.86	0.95	1060.5	42.0
	2–3.5	0.34	1260	3.5	1440.4	310	40.15	1593	959.1	1395.0	1540.1	0.86	0.97	1175.5	35.5
	2–4.5	0.34	1260	4.5	1880.2	310	40.15	1846	1103.6	1505.4	1702.0	0.82	0.92	1341.7	37.6
b	SC41	0.167	1500	4	2400	295	53.6	2215	1850.5	2175.8	2341.1	0.98	1.06	2090.1	5.9	[13]
	SC42	0.334	1500	4	2400	295	53.6	2275	1850.5	2261.3	2443.7	0.99	1.07	2090.1	8.8
	SC51	0.167	1500	5	3000	295	53.6	2485	2011.9	2326.4	2477.8	0.94	0.99	2244.0	10.7
	SC52	0.334	1500	5	3000	295	53.6	2585	2011.9	2407.9	2356.7	0.93	0.91	2244.0	15.2
	SC61	0.167	1500	6	3600	295	53.6	2710	2173.4	2472.8	2801.1	0.91	1.03	2394.3	13.2
	SC62	0.334	1500	6	3600	295	53.6	2775	2173.4	2550.0	2677.3	0.92	0.96	2394.3	15.9
c	A-1	0.111	4900	3.5	1960	300	22.3	1107	982.5	1166.3	1110.7	1.05	1.00	1015.9	9.0	[31]
	A-2	0.222	4900	3.5	1960	300	22.3	1129	982.5	1272.3	1192.6	1.13	1.06	1015.9	11.1
	A-3	0.333	4900	3.5	1960	300	22.3	1222	982.5	1380.2	1285.4	1.13	1.06	1015.9	20.3
	B-1	0.111	4900	3.5	1960	300	26.4	1200	1055.0	1260.5	1228.5	1.05	1.02	1111.3	8.0
	B-2	0.222	4900	3.5	1960	300	26.4	1237	1055.0	1365.7	1266.3	1.10	1.02	1111.3	11.3
	B-3	0.333	4900	3.5	1960	300	26.4	1294	1055.0	1472.6	1305.6	1.14	1.01	1111.3	16.4
	C-1	0.111	4900	3.5	1960	300	32.8	1204	1168.2	1409.3	1297.1	1.17	1.08	1261.1	−4.5
	C-2	0.222	4900	3.5	1960	300	32.8	1300	1168.2	1513.8	1352.5	1.16	1.04	1261.1	3.1
	C-3	0.333	4900	3.5	1960	300	32.8	1400	1168.2	1619.8	1405.9	1.16	1.00	1261.1	11.0
	D-1	0.111	4900	3.5	1960	300	40	1601	1295.6	1578.0	1502.1	0.99	0.94	1430.5	11.9
	D-2	0.222	4900	3.5	1960	300	40	1742	1295.6	1682.2	1655.4	0.97	0.95	1430.5	21.8
	D-3	0.333	4900	3.5	1960	300	40	1815	1295.6	1787.8	1797.6	0.99	0.99	1430.5	26.9