Modular Support Systems Technical Guide, Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.6 MT ANGLE BRACES AND FITTINGS MT-B-GS AB OC
Description
Angle brace base connector for MT-70 girder to MT, concrete, or steel( X-BT / S-BT / F-BT).
Material Specifications
Standard 1 Grade 1 F y, ksi( MPa) F u
, ksi( MPa) GB / T 1591 Q355 B 51.49( 355) 68.17( 470)
1. Mechanical properties of GB / T 1591 Grade Q355 B meet or exceed the mechanical properties of ASTM A1011 SS Grade 50.
Corrosion Protection
Hot-Dipped Galvanized( HDG)
MT-B-GS AB OC
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Ordering Information
Description
Weight Per Piece lbs( kg)
Quantity Piece( s)
Item No. MT-B-GS AB OC 3.62( 1.64) 8 2332787
Figure 74- MT Girder-to-Concrete Table 205- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
A. MT-70
F r lb( kN)
3,795( 16.90)
1. Safety factor, Ω, for tabulated values is 3.4. 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. Design professional is responsible for checking concrete and fastener strength. 4. See Figure 74.
Table 206- Limit State Design( LSD) Load Data 1, 2, 3
F r lb( kN)
5,280( 23.50)
1. Resistance factor, ϕ, for tabulated values is 0.4. 2. Load values are for base connector only. Design professional is responsible for checking concrete and fastener strength. 3. See Figure 74.
Figure 75- MT Girder-to-Girder Table 207- Allowable Strength Design( ASD) Load Data 1, 2, 3
A. MT-70 B. MT-80( long side)/ MT-90 / MT-100
F r lb( kN)
2,940( 13.10)
1. Safety factor, Ω, for tabulated values is 2.5. 2. Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD) values. 3. See Figure 75.
Table 208- Limit State Design( LSD) Load Data 1, 2
F r lb( kN)
4,180( 18.60)
1. Resistance factor, ϕ, for tabulated values is 0.6. 2. See Figure 75.
2023
105