Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.3 MT SYSTEM CONNECTORS MT-C-GS A OC
Description
Adjustable angle bracket for girder-to-girder connections .
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 .
Corrosion Protection
Hot-Dipped Galvanized ( HDG )
MT-C-GS A OC
Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No . MT-C-GS A OC 0.86 ( 0.39 ) 10 2272068
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mm ( in )
Figure 43 - MT Single Angle Connection
Table 143 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
990 |
535 |
2,070 |
( 4.42 ) |
( 2.40 ) |
( 9.23 ) |
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 . See Figure 43 .
Table 144 - Limit State Design ( LSD ) Load Data 1 , 2
A . MT-70 / 80 ( short side ) B . MT-70 / 80 / 90 / 100
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
1,445 |
810 |
2,675 |
( 6.44 ) |
( 3.61 ) |
( 11.91 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.7 . 2 . See Figure 43 .
Figure 44 - MT Double Angle Connection
Table 145 - 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 )
3,295 |
1,585 |
5,965 |
1,045 |
( 14.66 ) |
( 7.07 ) |
( 26.54 ) |
( 1.42 ) |
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 . See Figure 44 .
Table 146 - Limit State Design ( LSD ) Load Data 1 , 2
A . MT-70 / 80 ( short side ) B . MT-70 / 80 / 90 / 100
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y ft lb ( kN m )
4,280 |
2,385 |
8,685 |
1,525 |
( 19.06 ) |
( 10.63 ) |
( 38.65 ) |
( 2.07 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.75 . 2 . See Figure 44 .
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