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From [Institution name]
Grade |
Bending, FbFootnote (4) MPa (psi) |
Tension Parallel to Grain FtFootnote (5) MPa (psi) |
Compression Parallel to Grain, Fc║ MPa (psi) |
Compression Perpendicular to Grain, Fc┴ MPa (psi) |
Horizontal Shear, Fv MPa (psi) |
Apparent MOE, Eapparent MPa (× 106 psi) |
Shear-free MOE, Eshear-freeFootnote (7) MPa (× 106 psi) |
||
---|---|---|---|---|---|---|---|---|---|
OrientationFootnote (6) |
|||||||||
Joist |
Axial |
Axial |
Joist |
Plank |
Joist |
Plank |
Joist |
Joist |
|
2580Fb − 1.55Eapparent (1.6Eshear-free) |
32.9 (4 768) |
22.7 (3 289) |
26.1 (3 791) |
6.4 (928) |
3.3 (473) |
3.2 (465) |
2.0 (291) |
10 687 (1.55) |
11 032 (1.6) |
2700Fb − 1.8E apparent (1.9Eshear-free) |
34.4 (4 990) |
25.5 (3 696) |
26.1 (3 791) |
6.4 (928) |
2.5 (364) |
3.2 (465) |
2.0 (291) |
12 411 (1.8) |
13 101 (1.9) |
3000Fb − 1.9E apparent (2.0Eshear-free) |
38.2 (5 544) |
25.5 (3 696) |
26.1 (3 791) |
6.4 (928) |
2.5 (364) |
3.2 (465) |
2.0 (291) |
13 101 (1.9) |
13 790 (2.0) |
3100Fb − 2.0Eapparent (2.1Eshear-free) |
39.50 (5 729) |
25.5 (3 696) |
28.6 (4 150) |
6.5 (947) |
2.5 (364) |
3.7 (539) |
2.3 (329) |
13 790 (2.0) |
14 479 (2.1) |
Grade |
Equivalent Specific Gravity (SG) |
|||||
---|---|---|---|---|---|---|
Nails |
Bolts |
|||||
Withdrawal Load |
Lateral Load |
Lateral Load |
||||
Installed in edge |
Installed in face |
Installed in edge |
Installed in face |
Installed in face |
||
Parallel to grain |
Perpendicular to grain |
|||||
2580Fb − 1.55E apparent (1.6Eshear-free) |
Hemlock-fir north (0.46) |
Red pine (0.44) |
Spruce-pine-fir (S-P-F) (0.42) |
Hemlock-fir north (0.46) |
(0.33) |
Western white pine (0.40) |
2700Fb − 1. 8Eapparent (1.9Eshear-free) |
Western white pine (0.40) |
Western white pine (0.40) |
Spruce-pine-fir (S-P-F) (0.42) |
Hemlock-fir north (0.46) |
(0.33) |
Western white pine (0.40) |
3000Fb − 1.9Eapparent (2.0Eshear-free) |
Western white pine (0.40) |
Western white pine (0.40) |
Spruce-pine-fir (S-P-F) (0.42) |
Hemlock-fir north (0.46) |
(0.33) |
Western white pine (0.40) |
3100Fb − 2.0Eapparent(2.1Eshear-free) |
Western white pine (0.40) |
Western white pine (0.40) |
Spruce-pine-fir (S-P-F) (0.42) |
Hemlock-fir north (0.46) |
Hemlock-fir (0.43) |
Hemlock-fir (0.43) |
Nail Size |
Nails Installed in Edge |
|
---|---|---|
On centre (o.c.) Spacing |
End Distance |
|
63.5 mm |
75 mm |
63.5 mm |
75 mm |
75 mm |
63.5 mm |
82.5 mm |
75 mm |
63.5 mm |
89 mm |
150 mmFootnote (6) |
75 mm |