Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.5 MT Angle Braces and Fittings
MT-AB-LL2 45
Description
Angle brace for MT-50 and channel-to-channel 45-degree connections. Meant to be installed with 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 MT-AB-LL2 45
Environmental Conditions
Dry indoor conditions( C1) Indoor with temporary condensation( C2)
MT-AB-LL2 45 OC Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information
Description
Weight Per Piece, lbs( kg)
Quantity Piece( s)
Item No. MT-AB-LL2 45 1.32( 0.60) 10 2272115 MT-AB-LL2 45 OC 1.32( 0.60) 10 2273585
mm( in)
Figure 92 – MT Channel-to-Channel Connection
Table 286- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fr lb( kN) 1,300( 5.79)
1 Minimum safety factor, Ω, for tabulated values is 3.0. 2 Multiply tabulated values by 1.5 to obtain minimum Load and
Resistance Factor Design( LRFD) values. 3 See Figure 92.
A. B.
MT-50 MT-50 / 50U / 50D / 60 / 60D / 40D
Table 287- Limit State Design( LSD) Load Data 1, 2
Fr lb( kN) 1,640( 7.33)
1 Maximum resistance factor, φ, for tabulated values is 0.45.
2 See Figure 92.
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