Table 2: Calculations for Selected Test Angles with Double-Bolt End Connections.

No. Angle Size (mm) Fy
(MPa)
Length L (mm) Area A
(mm2)
rz
(mm)
L/rz Fa
(MPa)
PT
(kN)
ke LC* LCM*
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11)
1 38 x 38 x 3.2 260 1264 232 7.52 168 134.2 31.1 0.721 0.139 0.096
2 38 x 38 x 4.8 260 1226 340 7.45 165 161.3 54.7 0.672 0.164 0.099
3 51 x 51 x 3.2 260 1645 313 10.1 163 105.8 33.4 0.836 0.082 0.073
4 51 x 51 x 3.2 260 2153 313 10.1 213 100.0 31.1 0.661 0.169 0.056
5 64 x 64 x 4.8 265 1988 582 12.6 158 118.9 69.4 0.815 0.092 0.061
6 64 x 64 x 4.8 265 2610 582 12.6 207 95.4 55.6 0.694 0.153 0.046
7 76 x 76 x 6.4 322 2379 927 15.0 158 113.1 105 0.835 0.082 0.0051
8 76 x 76 x 6.4 322 3169 927 15.0 211 80.7 74.7 0.752 0.124 0.038
9 76 x 76 x 7.9 249 3118 1150 15.0 208 81.4 93.4 0.749 0.125 0.039
10 76 x 76 x 7.9 249 3867 1150 15.0 258 69.0 79.2 0.656 0.172 0.031
11 89 x 89 x 6.4 260 3626 1090 17.6 206 71.7 78.3 0.808 0.096 0.033
12 89 x 89 x 6.4 260 4502 1090 17.6 256 43.4 47.6 0.835 0.083 0.027
Average 0.753 0.123 0.054

* As a fraction of total length L, at each end
Bolt spacing ‘s’ = 57.2 mm (2¼ in.)
End distance ‘e’ of all specimens = 31.8 mm (1¼ in.)
Edge distance ‘f’ of specimens = 20.6 mm to 38.1 mm (13/16 in. to 1½ in.)