Modular Support Systems Technical Guide, Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.3 MT SYSTEM CONNECTORS MT-C-GSP T A OC
Description
Adjustable gusset plate for T-shaped connections with MT-70 and MT-80 girders.
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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 T A OC
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mm( in)
Ordering Information
Description |
Weight Per Piece lbs( kg) |
Quantity Piece( s) |
Item No. |
MT-C-GSP T A OC 1.04( 0.47) 10 2332785
Figure 55- MT Girder Connection
Table 167- 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) |
7,420 |
455 |
3,725 |
505 |
485 |
( 33.02) |
( 2.04) |
( 16.59) |
( 0.69) |
( 0.66) |
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 55.
Table 168- Limit State Design( LSD) Load Data 1, 2, 3
F x lb( kN) |
F y lb( kN) |
F z lb( kN) |
M y ft lb( kN m) |
M z ft lb( kN m) |
A. MT-70 / 80( long side)
10,535 |
690 |
5,290 |
720 |
690 |
( 46.87) |
( 3.07) |
( 23.55) |
( 0.98) |
( 0.94) |
1. Maximum resistance factor, ϕ, for tabulated values is 0.65. 2. Tabulated values are based on plates being installed in pairs. 3. See Figure 55.
Figure 56- MT Girder Connection
Table 169- 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) |
7,495 |
1,250 |
4,605 |
940 |
715 |
( 33.34) |
( 5.57) |
( 20.49) |
( 1.28) |
( 0.97) |
1. Minimum safety factor, Ω, for tabulated values is 2.0. 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 56.
Table 170- Limit State Design( LSD) Load Data 1, 2, 3
A. MT-70 / 80( long side)
F x lb( kN)
F y lb( kN)
F z lb( kN)
M y ft lb( kN m)
M z ft lb( kN m)
9,740 |
1,885 |
6,535 |
1,320 |
1,010 |
( 43.34) |
( 8.39) |
( 29.08) |
( 1.79) |
( 1.37) |
1. Maximum resistance factor, ϕ, for tabulated values is 0.75. 2. Tabulated values are based on plates being installed in pairs. 3. See Figure 56.
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