Shear Stress-Relative Slip Relationship at Concrete Interfaces

Table 2

Comparisons of normalized root mean square error obtained from each shear stress-relative slip curve.

Statistical value	Monolithic joints		Smooth construction joints
	This study	Xu et al.	This study	CEB-FIP
	0.41	1.85	0.52	1.98
	0.16	0.49	0.36	0.32

Note: normalized root mean square error, , where is the mean stress in the measured shear stress-relative slip curve, and are the experimental and predicted shear stresses, respectively, and is the number of points in the experimental curve.
(i) and are the mean and standard deviation, respectively, of the values calculated for each curve.