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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