3.0 MODULAR SUPPORT SYSTEM 3.2.1 MT CONNECTION MECHANISMS MT-CTAB
Description
Screw for channel connections. MT-CTAB screw is fastened using the TX-50 or an 11 / 16 "( 17 mm) diameter socket.
Material Specifications
Standard 1 Grade 1 F y, ksi( MPa) F u
, ksi( MPa) EN-10025-2 S235 JR 34.08( 235) 53.66( 370)
1. Mechanical properties of EN-10025-2 Grade S235 JR meet or exceed the mechanical properties of ASTM A1011 SS Grade 33.
Modular Support Systems Technical Guide, Edition 1
Corrosion Protection
Electro-Galvanized( EG)
MT-CTAB
Hot-Dipped Galvanized( HDG)
��
������“)
�����“)
�
MT-CTAB OC
Ordering Information
Description
Weight Per Piece lbs( kg)
Quantity Piece( s)
Item No.
MT-CTAB 0.11( 0.05) 100 2332797 MT-CTAB OC 0.11( 0.05) 100 2332788
Figure 4- MT Channel Connection
���
mm( in)
Table 65- Allowable Strength Design( ASD) Load Data 1, 2, 3
F x lb( kN)
F y lb( kN)
F z lb( kN)
415 |
505 |
1,405 |
( 1.86) |
( 2.26) |
( 6.25) |
1. Minimum safety factor, Ω, for tabulated values is 2.3. 2. Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD) values. 3. See Figure 4.
Table 66- Limit State Design( LSD) Load Data 1, 2
A. MT-30 / 50 / 60 B. MT-40D C. MT-CTAB D. MT-TL
F x lb( kN)
F y lb( kN)
F z lb( kN)
525 |
810 |
1,850 |
( 2.35) |
( 3.61) |
( 8.23) |
1. Maximum resistance factor, Φ, for tabulated values is 0.6. 2. See Figure 4.
Figure 5- MT Channel Connection Table 67- Allowable Strength Design( ASD) Load Data 1, 2, 3
A. MT-30 / 50 / 60 B. MT-50 / 60 C. MT-CTAB
F x lb( kN)
F y lb( kN)
F z lb( kN)
505 |
505 |
1,405 |
( 2.26) |
( 2.26) |
( 6.25) |
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 5.
Table 68- Limit State Design( LSD) Load Data 1, 2
2023
F x lb( kN)
F y lb( kN)
F z lb( kN)
810 |
810 |
1,850 |
( 3.61) |
( 3.61) |
( 8.23) |
1. Maximum resistance factor, Φ, for tabulated values is 0.75. 2. See Figure 5.
53