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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