Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.3 MT SYSTEM CONNECTORS MT-C-GL A OC
Description
Adjustable connector for MT-80 ( long side ), MT-90 , and MT-100 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 )
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MT-C-GL A OC
Ordering Information
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Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No .
MT-C-GL A OC 2.53 ( 1.15 ) 10 2272069
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Figure 45 - MT Single Angle Connection
Table 147 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
2,995 |
2,620 |
3,000 |
( 13.33 ) |
( 11.66 ) |
( 13.36 ) |
1 . Minimum safety factor , Ω , for tabulated values is 2.1 . 2 . Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD ) values . 3 . See Figure 45 .
Table 148 - Limit State Design ( LSD ) Load Data 1 , 2
A . MT-80 ( long side )/ 90 / 100 ( short side )
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
4,495 |
3,935 |
4,510 |
( 20.00 ) |
( 17.52 ) |
( 20.08 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.7 . 2 . See Figure 45 .
Figure 46 - MT Double Angle Connection
Table 149 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y ft lb ( kN m )
6,560 |
5,275 |
5,615 |
1,320 |
( 29.20 ) |
( 23.47 ) |
( 24.99 ) |
( 1.79 ) |
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 . See Figure 46 .
Table 150 - Limit State Design ( LSD ) Load Data 1 , 2
A . MT-80 ( long side )/ 90 / 100 ( short side )
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y ft lb ( kN m )
8,530 |
7,635 |
7,970 |
1,870 |
( 37.96 ) |
( 33.97 ) |
( 35.47 ) |
( 2.54 ) |
1 . Maximum resistance factor , ϕ , for tabulated values is 0.65 . 2 . See Figure 46 .
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