Table 2.3.2 Torsion Properties -- Steel Sections 1887-1952 Normalized Warping Warping Constant (ECw/GJ)1/2= Constant Cw a Wno in.6 in. in.2 13.7 15.1 3.87 11.2 13.0 3.57 10.9 12.9 3.57 9.6 18.1 3.74 6.60 22.6 3.62
Warping Statical Moment Sw in.4 1.36 1.31 1.31 0.99 0.72
Statical Moment Qf in.3 1.24 1.24 1.24 0.94 0.69
Statical Moment Qw in.3 3.09 2.99 2.99 2.31 1.71
BS4 H1 4x4 BS4, CB41 BS4
Torsional Constant J in.4 0.16 0.17 0.17 0.08 0.03
12BL, B12L CBL12 BJ12 12BL, B12L CBL12 BJ12 12BL, B12L CBL12 12BJ, BJ12 CBJ12 Jr12 Jr12
0.30 0.29 0.28 0.19 0.18 0.18 0.11 0.11 0.07 0.07 0.05 0.05
161 161 149 128 128 114 96.0 96.0 76.8 76.8 34.0 34.0
37.5 37.8 37.2 42.1 42.5 40.9 46.5 47.2 52.4 53.3 40.8 40.9
12.0 12.0 12.2 11.8 11.8 12.0 11.7 11.7 11.6 11.6 9.01 9.02
5.12 5.12 5.04 4.14 4.14 3.99 3.16 3.16 2.58 2.58 1.55 1.55
4.75 4.75 4.58 3.89 3.89 3.64 2.97 2.97 2.47 2.47 1.92 1.91
14.4 14.4 13.8 12.2 12.2 11.6 10.1 10.1 8.48 8.48 6.98 6.98
Jr11
0.04
21.8
36.8
7.67
1.17
1.55
5.60
10BL, B10L CBL10 BJ10 10BL, B10L CBL10 BJ10 10BL, B10L CBL10 10BJ, BJ10 CBJ10 Jr10
0.24 0.23 0.26 0.16 0.16 0.16 0.11 0.10 0.05 0.05 0.03
102 102 92.9 82.7 82.7 70.8 66.0 66.0 46.9 46.9 14.6
33.4 33.7 30.6 36.7 37.2 33.8 40.0 40.6 48.8 49.9 33.7
9.91 9.91 9.79 9.82 9.82 9.68 9.73 9.73 9.55 9.55 6.58
3.92 3.92 3.91 3.24 3.24 3.08 2.62 2.62 1.92 1.92 0.92
3.66 3.66 3.66 3.04 3.04 2.90 2.47 2.47 1.86 1.86 1.29
10.6 10.6 10.5 9.14 9.14 8.80 7.81 7.81 5.91 5.91 4.51
Jr9
0.02
7.56
28.4
5.23
0.60
0.95
3.37
BJ8 8BL, B8L CBL8 BJ8 8BL, B8L CBL8 8BJ, BJ8 CBJ8 Jr8
0.21 0.14 0.14 0.14 0.09 0.09 0.04 0.04 0.02
49.6 50.3 50.3 40.3 39.3 39.3 29.5 29.5 5.19
25.0 30.5 31.0 26.9 33.7 34.3 41.5 42.5 26.1
7.50 7.84 7.84 7.44 7.75 7.75 7.58 7.58 4.45
2.73 2.47 2.47 2.28 1.97 1.97 1.52 1.52 0.48
2.64 2.31 2.31 2.20 1.85 1.85 1.48 1.48 0.79
7.26 6.64 6.64 6.33 5.55 5.55 4.29 4.29 2.66
Designation
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