Nonlinear Analysis for the Crack Control of SMA Smart Concrete Beam Based on a Bidirectional B-Spline QR Method

Table 4

The recovery situation of maximum crack width with different depth-span ratios.

Temperature of SMA wires (°C)	Maximum crack width (mm)			Recovery rate of maximum crack width (%)
	20	0.1002	0.2098	0.3500	0.00	0.00	0.00
40	0.0996	0.2090	0.3491	0.59	0.39	0.27
60	0.0886	0.1940	0.3315	11.61	7.54	5.29
80	0.0821	0.1851	0.3211	18.10	11.77	8.26
100	0.0780	0.1795	0.3146	22.20	14.44	10.11
120	0.0768	0.1779	0.3128	23.40	15.22	10.64

Depth-span ratios : 1 : 8, 1 : 10, and = 1 : 12.