Official Journal of the Japan Wood Research Society
Table 2 Results of pull-out tests
From: Relationship between clamp force and pull-out strength in lag screw timber joints
Conifer species | P max (kN) | P max-L (kN/mm) | P 5%-pull (kN/mm) |
|---|---|---|---|
Cryptomeria japonica | |||
 Max. | 9.12 | 0.198 | 0.142 |
 Min. | 7.52 | 0.159 | |
 Ave. | 8.32 | 0.179 | |
 SD | 0.67 | 0.016 | |
Chamaecyparis obtusa | |||
 Max. | 11.83 | 0.252 | 0.204 |
 Min. | 9.92 | 0.216 | |
 Ave. | 11.13 | 0.239 | |
 SD | 0.81 | 0.015 | |
Pseudotsuga menziesii | |||
 Max. | 16.53 | 0.329 | 0.272 |
 Min. | 13.37 | 0.294 | |
 Ave. | 14.93 | 0.312 | |
 SD | 1.03 | 0.017 | |