Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM |
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3.2.3 MT SYSTEM CONNECTORS |
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MT-C-GSP T OC |
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Description |
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Gusset plate for T-shaped connections with MT-70 and MT-80 girders . |
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Material Specifications |
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Standard 1 Grade 1 F y , ksi ( MPa ) F u
, ksi ( MPa )
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GB / T 1591 Q355 B 51.49 ( 355 ) 68.17 ( 470 ) |
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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 )
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MT-C-GSP T OC |
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Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No .
MT-C-GSP T OC 0.95 ( 0.43 ) 10 2272074
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mm ( in ) |
Figure 48 - MT Girder Connection
Table 153 - 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 )
10,250 |
1,300 |
1,575 |
600 |
280 |
( 45.60 ) |
( 5.80 ) |
( 7.01 ) |
( 0.82 ) |
( 0.38 ) |
1 . Minimum safety factor , Ω , for tabulated values is 2.2 . 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 48 .
Table 154 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
A . MT-70 B . 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 )
13,375 |
1,955 |
2,365 |
855 |
420 |
( 59.50 ) |
( 8.71 ) |
( 10.54 ) |
( 1.16 ) |
( 0.57 ) |
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 48 .
Figure 49 - MT Girder Connection
Table 155 - 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 )
9,440 |
1,660 |
3,170 |
905 |
530 |
( 42.00 ) |
( 7.39 ) |
( 14.11 ) |
( 1.23 ) |
( 0.72 ) |
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 49 .
Table 156 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
A . MT-70 B . MT-70 / 80 ( long side )
2023
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y ft lb ( kN m )
M z ft lb ( kN m )
13,400 |
2,495 |
4,415 |
1,280 |
800 |
( 59.62 ) |
( 11.10 ) |
( 19.64 ) |
( 1.74 ) |
( 1.09 ) |
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 49 .
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