Experimental Study and Numerical Simulation Analysis on Reinforcement of Mortise-Tenon Joints with Flat Steel Strips

Table 7

Comparison of stiffness before and after reinforcement.

Mortise-tenon type	Specimen no	Reinforcement method	Initial stiffness	Average secant stiffness	Secant stiffness covariance, Cov (JD-1X, JD-2X), X = a, b, c
Tou mortise-tenon joints	JD-1a	Unreinforced	34.44	4.01	63.55
	JD-2a	Reinforced	126.74	11.86
Ban mortise-tenon joints	JD-1b	Unreinforced	35.14	2.04	10.18
	JD-2b	Reinforced	81.07	2.83
Dovetail mortise-tenon joints	JD-1c	Unreinforced	18.37	1.47	8.75
	JD-2c	Reinforced	36.08	3.94