Product Technical Guides : US-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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