Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.5 MT Angle Braces and Fittings
MT-AB-A
Description
Adjustable angle brace for anchoring MT-50 channel into concrete.
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-A
Environmental Conditions
Dry indoor conditions( C1) Indoor with temporary condensation( C2)
MT-AB-A OC Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information
Description
Weight Per Piece, lbs( kg)
Quantity Piece( s)
Item No. MT-AB-A 0.97( 0.44) 12 2346395 MT-AB-A OC 0.97( 0.44) 12 2346396
mm( in)
Figure 89 – MT Channel Base Anchorage
Table 280- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
Fr lb( kN) 2,060( 9.17)
1 Minimum safety factor, Ω, for tabulated values is 3.5. 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 base and anchor strength. 4 See Figure 89.
Table 281- Limit State Design( LSD) Load Data 1, 2, 3
A. MT-50
Fr lb( kN) 3,090( 13.75)
1 Maximum resistance factor, φ, for tabulated values is 0.4 2 Load values are for base connector only. The design professional is responsible for checking base and anchor strength. 3 See Figure 89.
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