Official Journal of the Japan Wood Research Society
Table 4 Experimental results evaluated by the method shown in Fig. 4b
From: Effective lateral resistance of combined timber joints with nails and bolts
t (mm) | K (kN/mm) | U (kN mm) | P max (kN) | δ P (mm) | P δa (kN) | δ a (mm) | P u (kN) | μ | 0.2P u (2μ − 1)0.5 (kN) | 2/3P max (kN) | P a (kN) |
|---|---|---|---|---|---|---|---|---|---|---|---|
Nailed joints | |||||||||||
 60 | 8.5 | 260 | 22.0 | 5.5 | 16.9 (14.3) | 2.00 | 21.3 | 5.35 | 13.3 (11.1) | 14.7 (13.2) | 11.1 |
 90 | 8.1 | 231 | 21.0 | 4.8 | 16.1 (12.1) | 2.00 | 20.2 | 5.18 | 12.3 (11.2) | 14.0 (12.1) | 11.2 |
 120 | 7.4 | 256 | 21.6 | 7.0 | 14.8 (13.2) | 2.00 | 20.5 | 4.98 | 12.3 (9.6) | 14.4 (12.1) | 9.6 |
Bolted joints | |||||||||||
 60 | 8.9 | 185 | 21.8 | 7.5 | 17.8 (12.5) | 2.00 | 21.6 | 4.10 | 11.4 (6.9) | 14.5 (7.2) | 6.9 |
 90 | 8.2 | 397 | 34.8 | 13.8 | 16.5 (12.8) | 2.00 | 29.7 | 4.34 | 16.3 (12.6) | 23.2 (14.3) | 12.6 |
 120 | 7.6 | 586 | 40.7 | 19.4 | 15.3 (11.4) | 2.00 | 32.6 | 5.04 | 19.6 (15.1) | 27.1 (24.6) | 11.4 |
Combined joints | |||||||||||
 60 | 8.5 | 518 | 43.0 | 8.9 | 17.0 (10.8) | 2.00 | 43.1 | 2.93 | 18.7 (15.4) | 28.7 (21.3) | 10.8 |
 90 | 8.9 | 799 | 53.6 | 14.8 | 17.9 (9.9) | 2.00 | 51.0 | 3.25 | 23.7 (16.7) | 35.7 (27.9) | 9.9 |
 120 | 8.2 | 982 | 55.2 | 16.1 | 16.4 (13.5) | 2.00 | 52.3 | 3.46 | 25.4 (21.4) | 36.8 (33.0) | 13.5 |