The Influence of the Number of Joints on the Size Effect of Shear Strength and Characteristic Strength

Table 6

Values of parameters a and b.

Parameter	Size of structural plane l/mm
	200	400	600	800	1000	1200
a	221.037	114.563	72.704	55.979	44.656	35.662
b	−2.963	−2.147	−0.96	−0.833	−0.528	−0.37