Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.5 MT Angle Braces and Fittings
MT-AB-L 45
Description
Angle brace for MT-50 channel to concrete and channelto-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 |
Environmental Conditions |
MT-AB-L 45 |
Dry indoor conditions( C1)
Indoor with temporary condensation( C2)
|
MT-AB-L 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-L 45 |
1.06( 0.48) |
10 |
2272113 |
MT-AB-L 45 OC 1.06( 0.48) 10 2272114 mm( in)
Figure 90 – MT Channel Anchorage to Base
A. MT-50
Figure 91 – MT Channel-to-Channel Connection
A. MT-50 B. MT-30 / 50 / 50U / 50D / 60 / 60D / 40D
Table 282- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
Fr lb( kN) 975( 4.34)
1 Minimum safety factor, Ω, for tabulated values is 4.00. 2 Multiply tabulated values by 1.5 to obtain minimum Load and
Resistance Factor Design( LRFD) values. 3 Load values are for base connector only. The design professional is responsible for checking concrete and anchor bolt strength. 4 See Figure 90.
Table 283- Limit State Design( LSD) Load Data 1, 2, 3
Fr lb( kN) 1,230( 5.48)
1 Maximum resistance factor, φ, for tabulated values is 0.34.
2 Load values are for base connector only. The design professional is responsible for checking concrete and anchor bolt strength.
3 See Figure 90.
Table 284- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fr lb( kN) 975( 4.34)
1 Minimum safety factor, Ω, for tabulated values is 2.6. 2 Multiply tabulated values by 1.5 to obtain minimum LRFD values. 3 See Figure 91.
Table 285- Limit State Design( LSD) Load Data 1, 2
Fr lb( kN) 1,230( 5.48)
1 Maximum resistance factor, φ, for tabulated values is 0.55.
2 See Figure 91.
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