3.0 MODULAR SUPPORT SYSTEM 3.2.8 MT CLAMPS AND CHANNEL TIES MT-CC-70 OC
Description
Clamp for girder-to-channel or girder-to-girder connections . Material Specifications
Standard 1 Grade 1 F y , ksi ( MPa ) F u
, ksi ( MPa ) GB / T 700 Q235 B 34.08 ( 235 ) 53.66 ( 370 )
1 . Mechanical properties of GB / T 700 Grade Q235 B meet or exceed the mechanical properties of ASTM A1011 SS Grade 33 .
Modular Support Systems Technical Guide , Edition 1
Corrosion Protection
Hot-Dipped Galvanized ( HDG )
MT-CC-70 OC ∅11
( 7 / 16 ")
∅11
( 7 / 16 ")
50
( 1-15 / 16 ")
47.5
( 1-7 / 8 ")
|
Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No .
MT-CC-70 OC 0.79 ( 0.36 ) 16 2322404
|
42.5
( 1-11 / 16 ")
|
4
( 3 / 16 ")
|
51
( 2 ")
mm ( in )
|
155
( 6-1 / 8 ")
|
Figure 90 - Girder-to-Channel Connection Table 229 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3 , 4
A . MT-70 B . MT-30 / 50 / 60 / 40D
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
700 |
2,105 |
1,120 |
( 3.12 ) |
( 9.38 ) |
( 5.00 ) |
1 . Minimum safety factor , Ω , for tabulated values is 2.6 . 2 . Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD ) values . 3 . See Figure 90 . 4 . Loading in the negative Z-direction is not recommended for this connector .
Table 230 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
975 |
2,930 |
1,560 |
( 4.35 ) |
( 13.05 ) |
( 6.96 ) |
1 . Maximum resistance factor , ϕ , for tabulated values is 0.55 . 2 . See Figure 90 . 3 . Loading in the negative Z-direction is not recommended for this connector .
Figure 91 - Girder-to-Girder Connection Table 231 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3 , 4
B
A . MT-70 B . MT-70 / 80 / 90 / 100
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
2,545 |
2,035 |
2,055 |
( 11.33 ) |
( 9.06 ) |
( 9.16 ) |
1 . Minimum safety factor , Ω , for tabulated values is 2.35 . 2 . Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD ) values . 3 . See Figure 915 . 4 . Loading in the negative Z-direction is not recommended for this connector .
Table 232 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
3,310 |
2,645 |
2,675 |
( 14.73 ) |
( 11.78 ) |
( 11.91 ) |
1 . Maximum resistance factor , ϕ , for tabulated values is 0.55 . 2 . See Figure 91 . 3 . Loading in the negative Z-direction is not recommended for this connector .
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