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

Table 8

The strain fitting model for each group of specimens.

Specimen group
		β	γ	(με)
A1B1	3.69	2.44	1.48	13383	0.95	0.83
A2B2				16877	1.07
A3B3				20371	0.97
B1G1	2.88	2.53	1.44	11595	0.96	0.89
B2G2				15471	1.08
B3G3				19347	0.98
C1B1	2.42	2.23	1.48	8548	1.02	0.84
C2B2				10610	0.98
C3B3				12672	1.01
C1G1	1.92	2.79	1.64	9957	1.02	0.98
C2G2				14769	0.99
C3G3				19581	0.97