Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Characteristic values of each wood specimen

From: Evaluation method for embedment stiffness of metal washers in bolted timber joints using torque gradient and nut factor

Specimen		K_ew [kN/mm]	K_pw [kN/mm]	P_y [kN]	F_max (= 0.7 × P_y) [kN]
Japanese cedar	Avg	18.1	1.01	4.36	3.05
Japanese cedar	S.D	4.58	0.25	0.61	3.05
Hiba	Avg	25.3	2.13	6.63	4.64
Hiba	S.D	0.62	0.42	0.73	4.64
Japanese cypress	Avg	29.8	2.13	13.5	9.43
Japanese cypress	S.D	1.53	0.11	0.67	9.43

Avg.: Average, S.D.: Standard deviation, K_pw: Secondary embedment stiffness of washer into timber member

Back to article page