Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.2 MT BASE CONNECTORS MT-B-GL O4C OC
Description
4-hole productivity base plate for MT-90 for 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 O4C OC
Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No . MT-B-GL O4C OC 15.05 ( 6.83 ) 2 2343282
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Figure 26 - MT-90 Anchoring to Concrete Table 109 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3 , 4
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 )
9,835 |
2,250 |
3,255 |
2,300 |
1,125 |
( 43.76 ) |
( 10.01 ) |
( 14.50 ) |
( 3.12 ) |
( 1.53 ) |
1 . Minimum safety factor , Ω , for tabulated values is 2.75 . 2 . Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD ) values . 3 . Load values are for base connector only . The design professional is responsible for checking concrete and fastener strength . 4 . See Figure 26 .
Table 110 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y lb ft ( kN m )
M z lb ft ( kN m )
13,965 |
3,380 |
4,560 |
2,905 |
3,190 |
( 62.12 ) |
( 15.04 ) |
( 20.30 ) |
( 3.94 ) |
( 4.33 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.6 . 2 . Load values are for base connector only . The design professional is responsible for checking concrete and fastener strength . 3 . See Figure 26 .
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