Product Technical Guides : CA-EN Modular Systems Product Technical Guide | Page 63

Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM
3.2.2 MT BASE CONNECTORS
MT-B-GL O4 OC
Description
4-hole base plate for MT-90 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-GL O4 OC
Ordering Information
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Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No .
MT-B-GL O4 OC 30.86 ( 14 ) 1 2272103
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mm ( in )
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Figure 16 - MT Girder Anchoring to Concrete
Table 89 - 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 )
27,175
12,265
12,265
5,560
5,560
( 120.9 )
( 54.56 )
( 54.56 )
( 7.54 )
( 7.54 )
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 16 . 4 . Load values are for base connector only . Design professional is responsible for checking concrete and fastener strength .
Table 90 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
A . MT-90
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y lb ft ( kN m )
M z lb ft ( kN m )
38,505
17,375
17,375
7,845
7,845
( 171.3 )
( 77.29 )
( 77.29 )
( 10.64 )
( 10.64 )
1 . Maximum resistance factor , Φ , for tabulated values is 0.75 . 2 . See Figure 16 . 3 . Load values are for base connector only . Design professional is responsible for checking concrete and fastener strength .
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