Modular Supports System Product Technical Guide June 2026 | Página 156

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.8 MT Clamps and Channel Ties
MT-CC-40 / 50
Description
Clamp for connecting MT-50 to channel or girder. Meant to be installed with the Twist Lock and Twist Lock Bolt.
Material Specifications
Standard 1 Grade 1 F y, ksi( MPa) F u, ksi( MPa)
GB / T 700 Q235 B 34.08( 235) 53.66( 370)
1 Mechanical properties of GB / T 700 Grade Q235 B meet or exceed the mechanical properties of ASTM A1011 SS Grade 33.
Corrosion Protection
Description
Environmental Conditions
MT-CC-40 / 50
Dry indoor conditions( C1)
Indoor with temporary condensation( C2)
MT-CC-40 / 50 OC
Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information
Description
Weight Per
Piece, lbs( kg)
Quantity
Piece( s)
Item No.
MT-CC-40 / 50
0.70( 0.32)
20
2322429
MT-CC-40 / 50 OC 0.70( 0.32) 20 2322391 mm( in)
Figure 121 – Channel-to-Channel Connection
Table 341- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
A. B.
MT-50 MT-30 / 50 / 60 / 40D
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
1,010
( 4.50)
1,685
( 7.50)
1,120
( 5.00)
1 Minimum safety factor, Ω, for tabulated values is 2.6.
2 Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD) values.
3 See Figure 121.
4 Loading in the negative Z-direction is not recommended for this connector.
Table 342- Limit State Design( LSD) Load Data 1, 2, 3
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
1,405
( 6.26)
2,345
( 10.44)
1,560
( 6.96)
1 Maximum resistance factor, φ, for tabulated values is 0.55.
2 See Figure 121.
3 Loading in the negative Z-direction is not recommended for this connector.
Figure 122 – Channel-to-Girder Connection
Table 343- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
1,010
( 4.50)
2,035
( 9.06)
1,645
( 7.33)
1 Minimum safety factor, Ω, for tabulated values is 2.35.
2 Multiply tabulated values by 1.5 to obtain minimum LRFD values.
3 See Figure 122.
4 Loading in the negative Z-direction is not recommended for this connector.
Table 344- Limit State Design( LSD) Load Data 1, 2, 3
A. MT-50 B. MT-70 / 80 / 90 / 100
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
1,405
( 6.26)
2,645
( 11.78)
2,140
( 9.53)
1 Maximum resistance factor, φ, for tabulated values is 0.55.
2 See Figure 122.
3 Loading in the negative Z-direction is not recommended for this connector.
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