Experimental and Numerical Studies on the Negative Flexural Behavior of Steel-UHPC Composite Beams

Table 7

Calculation of the critical crack width for the test beams.

Beam	Rebar stress (MPa)	Calculation result ① (mm)	Test result ② (mm)	(① − ②)/② (%)
CB-1	134.51	0.0571	0.05	14.2
CB-2	151.39	0.0548	0.05	9.6
CB-3	193.57	0.0512	0.05	2.4