Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.3 MT SYSTEM CONNECTORS MT-C-GS OC
Description
Angle connector for girder and channel connections . Use as base for attachment to concrete or steel ( X-BT / S-BT / F-BT compatible ).
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 OC
Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No . MT-C-GS OC 0.88 ( 0.40 ) 10 2272064
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Figure 39 - MT Channel Connection to Girder
Table 135 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
1,230 |
310 |
950 |
( 5.50 ) |
( 1.37 ) |
( 4.21 ) |
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 39 .
Table 136 - Limit State Design ( LSD ) Load Data 1 , 2
A . MT-30 / 50 / 60 / 40D B . MT-70 / 80 / 90 / 100
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
1,860 |
465 |
1,230 |
( 8.27 ) |
( 2.07 ) |
( 5.47 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.70 . 2 . See Figure 39 .
Figure 40 - MT Double Angle Connection
Table 137 - 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 )
1,970 |
250 |
2,130 |
715 |
( 8.78 ) |
( 1.13 ) |
( 9.49 ) |
( 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 . See Figure 40 .
Table 138 - Limit State Design ( LSD ) Load Data 1 , 2
A . MT-40D B . MT-70 / 80 / 90 / 100
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y ft lb ( kN m )
2,785 |
380 |
3,205 |
925 |
( 12.39 ) |
( 1.70 ) |
( 14.27 ) |
( 1.26 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.70 . 2 . See Figure 40 .
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