Product Technical Guides : CA-EN Modular Systems Product Technical Guide | Page 69

Modular Support Systems Technical Guide, Edition 1
3.0 MODULAR SUPPORT SYSTEM
3.2.2 MT BASE CONNECTORS
MT-B-G AS OC
Description
Base connector for MT-70 and MT-80 girder-to-concrete or girder-to-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)
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MT-B-G AS OC
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Ordering Information
Description
Weight Per Piece lbs( kg)
Quantity Piece( s)
Item No.
MT-B-G AS OC 1.24( 0.56) 10 2332781
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mm( in)
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Figure 25- MT Girder Anchoring to Concrete
Table 107- 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)
9,660
1,570
5,360
1,665
( 42.99)
( 7.00)
( 23.86)
( 2.26)
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 25. 4. Load values are for base connector only. Design professional is responsible for checking concrete and fastener strength.
Table 108- Limit State Design( LSD) Load Data 1, 2, 3
A. MT-70 / 80( long side)
F x lb( kN)
F y lb( kN)
F z lb( kN)
M y lb ft( kN m)
13,240
2,360
8,045
2,505
( 58.90)
( 10.52)
( 35.80)
( 3.40)
1. Maximum resistance factor, Φ, for tabulated values is 0.65. 2. See Figure 25. 3. Load values are for base connector only. Design professional is responsible for checking concrete and fastener strength.
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