The Experimental Studies on Behavior of Ultrahigh-Performance Concrete Confined by Hybrid Fiber-Reinforced Polymer Tubes

Table 5

Comparison of confinement models for predicting compressive strength.

Specimen group		Samaan model [18]		Toutanji model [12]		Lam-Teng model [19]		Pham model [27]
		(MPa)		(MPa)		(MPa)		(MPa)
		A1B1	0.13	127.42	1.02	133.96	0.97	104.33	1.25	91.65	1.42
A2B2	0.26	163.71	1.03	175.02	0.96	125.86	1.33	112.33	1.50
A3B3	0.39	197.25	1.06	212.97	0.98	147.38	1.41	133.02	1.56
B1G1	0.16	136.15	0.90	143.84	0.85	109.30	1.12	95.09	1.29
B2G2	0.32	179.44	0.92	192.82	0.86	135.79	1.22	119.22	1.39
B3G3	0.48	219.46	0.93	238.09	0.86	162.29	1.26	143.34	1.42
C1B1	0.12	124.45	0.89	130.60	0.85	102.67	1.08	89.29	1.24
C2B2	0.25	161.04	1.01	172.00	0.94	124.20	1.31	107.63	1.51
C3B3	0.37	192.21	1.11	207.27	1.03	144.07	1.48	125.96	1.69
C1G1	0.15	133.27	1.16	140.58	1.10	107.64	1.43	92.85	1.66
C2G2	0.29	171.64	1.12	183.99	1.04	130.82	1.47	114.73	1.68
C3G3	0.44	209.67	1.24	227.02	1.15	155.66	1.67	136.62	1.90
C2A1G1	0.23	155.64	0.83	165.89	0.78	120.89	1.06	104.98	1.22
C2A2G2	0.38	194.74	1.04	210.13	0.96	145.73	1.38	128.94	1.56
C2B1G1	0.21	150.18	0.93	159.71	0.87	117.58	1.19	102.60	1.36
C2B2G2	0.37	182.02	1.02	207.27	0.94	144.07	1.36	126.90	1.54
Average	N/A	N/A	1.01	N/A	0.95	N/A	1.31	N/A	1.50