Modular Support Systems Technical Guide, Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.3 MT SYSTEM CONNECTORS MT-C-GSP L A OC
Description
Adjustable gusset plate for L-shaped connections with MT-70 and MT-80 girders.
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.
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Corrosion Protection
Hot-Dipped Galvanized( HDG)
MT-C-GSP L A OC
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Ordering Information
Description
Weight Per Piece lbs( kg)
Quantity Piece( s)
Item No. MT-C-GSP L A OC 1.02( 0.46) 10 2332786
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mm( in)
Figure 57- MT Girder Connection
Table 171- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
F x lb( kN)
F y lb( kN)
F z lb( kN)
M y ft lb( kN m)
M z ft lb( kN m)
4,460 |
575 |
3,115 |
360 |
360 |
( 19.84) |
( 2.57) |
( 13.86) |
( 0.49) |
( 0.49) |
1. Minimum safety factor, Ω, for tabulated values is 2.25. 2. Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD) values. 3. Tabulated values are based on plates being installed in pairs. 4. See Figure 57.
Table 172- Limit State Design( LSD) Load Data 1, 2, 3
A. MT-70 / 80
F x lb( kN)
F y lb( kN)
F z lb( kN)
M y ft lb( kN m)
M z ft lb( kN m)
6,405 |
865 |
4,290 |
505 |
545 |
( 28.50) |
( 3.86) |
( 19.10) |
( 0.69) |
( 0.74) |
1. Maximum resistance factor, ϕ, for tabulated values is 0.7. 2. Tabulated values are based on plates being installed in pairs. 3. See Figure 57.
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