Product Technical Guides : CA-EN Modular Systems Product Technical Guide | Page 59

Modular Support Systems Technical Guide, Edition 1
3.0 MODULAR SUPPORT SYSTEM
3.2.2 MT BASE CONNECTORS
MT-B-O4
Description
4-hole base plate for back-to-back channel 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 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.
Corrosion Protection
Electro-Galvanized( EG)
MT-B-O4
Hot-Dipped Galvanized( HDG)
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MT-B-O4 OC
Ordering Information
Description
Weight Per Piece lbs( kg)
Quantity Piece( s)
Item No.
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mm( in)
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MT-B-O4 7.28( 3.3) 4 2272098
MT-B-O4 OC 7.28( 3.3) 4 2272099
Figure 11- MT Channel Anchoring to Concrete
Table 79- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
F x lb( kN)
F y lb( kN)
F z lb( kN)
M y lb ft( kN m)
M z lb ft( kN m)
3,030
700
3,590
3,485
1,860
( 13.50)
( 3.12)
( 15.98)
( 4.73)
( 2.53)
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 11. 4. Load values are for base connector only. Design professional is responsible for checking concrete and fastener strength.
Table 80- Limit State Design( LSD) Load Data 1, 2, 3
A. MT-40D
F x lb( kN)
F y lb( kN)
F z lb( kN)
M y lb ft( kN m)
M z lb ft( kN m)
4,095
945
4,665
5,015
2,645
( 18.23)
( 4.21)
( 20.77)
( 6.80)
( 3.59)
1. Maximum resistance factor, Φ, for tabulated values is 0.75. 2. See Figure 11. 3. Load values are for base connector only. Design professional is responsible for checking concrete and fastener strength.
2023
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