Modular Supports System Product Technical Guide June 2026 | Seite 68

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.1.2 MT Beam and Column Load Tables
Table 101- MT Beam Load Reduction Factors for Laterally Unbraced Angles and Channels 1, 2, 3, 4
Span In
MT-20
MT-30
MT-50
MT-50 U
MT-60
( cm)
x-axis
y-axis
x-axis
y-axis
x-axis
y-axis
x-axis
y-axis
x-axis
y-axis
12
( 30.5)
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
24
( 61.0)
1.00
1.00
1.00
1.00
0.93
1.00
0.99
1.00
0.91
1.00
36
( 91.4)
0.98
1.00
0.86
0.90
0.79
0.95
0.90
1.00
0.89
1.00
48
( 121.9)
0.90
1.00
0.86
0.81
0.75
0.90
0.82
0.98
0.76
1.00
60
( 152.4)
0.83
1.00
0.83
0.71
0.70
0.69
0.76
0.91
0.64
1.00
72
( 152.4)
0.77
0.95
0.81
0.62
0.66
0.69
0.71
0.88
0.54
1.00
84
( 213.3)
--
--
0.78
0.53
0.63
0.69
0.66
0.83
0.46
0.99
96
( 243.8)
--
--
0.76
0.45
0.59
0.69
0.63
0.79
0.41
0.97
108
( 274.3)
--
--
0.74
0.40
0.57
0.69
0.59
0.74
0.37
0.94
120
( 304.8)
--
--
0.72
0.35
0.54
0.67
0.56
0.69
0.35
0.92
144
( 365.8)
--
--
0.69
0.29
0.49
0.60
0.50
0.60
0.31
0.86
168
( 426.7)
--
--
0.65
0.25
0.44
0.53
0.46
0.51
0.28
0.79
192
( 487.7)
--
--
0.61
0.22
0.41
0.46
0.42
0.45
0.26
0.73
216
( 548.6)
--
--
0.58
0.19
0.38
0.41
0.39
0.39
0.24
0.68
240
( 609.6)
--
--
0.54
0.17
0.35
0.36
0.36
0.35
0.23
0.62
1. Linear interpolation is not permitted.
2. Reduction factors in the table are based on loading through the centroid of the cross-section.
3. Reduction factors are to be applied to the tabulated beam load values for fully braced spans. Additional reduction factors based on loading and support conditions may
apply per Table 14 on page 36.
4. Tabulated values conservatively assume a value for the lateral-torsional buckling modification factor, Cb, of 1.0.
Table 102- MT Beam Load Reduction Factors for Laterally Unbraced Double Channels 1, 2, 3, 4
Span in
MT-30D
MT-40D
MT-50D
MT-50D U
MT-60D
( cm)
x-axis
y-axis
x-axis
y-axis
x-axis
y-axis
x-axis
y-axis
x-axis
y-axis
24
( 61.0)
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
36
( 91.4)
1.00
0.97
1.00
1.00
1.00
1.00
1.00
1.00
1.00
1.00
48
( 121.9)
1.00
0.90
0.96
1.00
0.98
1.00
0.98
1.00
1.00
1.00
60
( 152.4)
0.97
0.82
0.90
0.99
0.93
1.00
0.94
0.99
1.00
1.00
72
( 152.4)
0.93
0.75
0.84
0.95
0.88
0.97
0.89
0.97
0.95
1.00
84
( 213.3
0.89
0.68
0.77
0.91
0.84
0.94
0.84
0.94
0.86
1.00
96
( 243.8)
0.86
0.60
0.70
0.86
0.79
0.91
0.80
0.91
0.76
1.00
108
( 274.3)
0.82
0.53
0.63
0.82
0.74
0.88
0.75
0.88
0.67
1.00
120
( 304.8)
0.78
0.47
0.57
0.78
0.70
0.85
0.71
0.83
0.59
1.00
144
( 365.8)
0.71
0.39
0.45
0.70
0.60
0.79
0.62
0.79
0.47
1.00
168
( 426.7)
0.64
0.33
0.38
0.62
0.51
0.73
0.53
0.74
0.39
1.00
192
( 487.7)
0.57
0.29
0.32
0.54
0.45
0.67
0.46
0.68
0.34
0.96
216
( 548.6)
0.51
0.25
0.29
0.47
0.40
0.61
0.41
0.62
0.30
0.92
240
( 609.6)
0.45
0.23
0.26
0.42
0.35
0.56
0.36
0.57
0.26
0.88
1. Linear interpolation is not permitted.
2. Reduction factors in table are based on loading through the shear center of the cross-section. The impact of torsion is not accounted for in these values.
3. Reduction factors are to be applied to the tabulated beam load values for fully braced spans. Additional modification factors based on loading and support conditions
may apply per Table 14 on page 36.
4. Tabulated values conservatively assume a value for the lateral-torsional buckling modification factor, Cb, of 1.0.
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