Product Technical Guides : CA-EN Modular Systems Product Technical Guide | Page 62

Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM
3.2.2 MT BASE CONNECTORS
MT-B-GS O4U OC
Description
4-hole base plate for MT-70 and MT-80 girder to concrete .
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 )
MT-B-GS O4U OC
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Ordering Information
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Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No .
MT-B-GS O4U OC 10.36 ( 4.7 ) 4 2272101
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mm ( in )
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Figure 15 - MT Girder Anchoring to Concrete
Table 87 - 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 )
12,115
2,610
3,005
1,010
830
( 53.89 )
( 11.62 )
( 13.38 )
( 1.37 )
( 1.13 )
1 . Minimum safety factor , Ω , for tabulated values is 2.5 . 2 . Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD ) values . 3 . See Figure 15 . 4 . Load values are for base connector only . Design professional is responsible for checking concrete and fastener strength .
Table 88 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
A . MT-70 / 80
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y lb ft ( kN m )
M z lb ft ( kN m )
15,750
3,395
3,910
1,435
1,080
( 70.06 )
( 15.11 )
( 17.40 )
( 1.95 )
( 1.47 )
1 . Maximum resistance factor , Φ , for tabulated values is 0.6 . 2 . See Figure 15 . 3 . Load values are for base connector only . Design professional is responsible for checking concrete and fastener strength .
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