Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.2 MT BASE CONNECTORS MT-B-O2B
Description
2-hole base plate for back-to-back channel-to-concrete or channel-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 700 Q235 B 34.08 ( 235 ) 53.66 ( 370 )
1 . Mechanical properties of GB / T 700 Grade Q235 B meet or exceed the mechanical properties of ASTM A1011 SS Grade 33 .
Corrosion Protection
Electro-Galvanized ( EG )
MT-B-O2B
Hot-Dipped Galvanized ( HDG )
MT-B-O2B OC
Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No .
MT-B-O2B 4.54 ( 2.06 ) 6 2282212 MT-B-O2B OC 4.54 ( 2.06 ) 6 2282213
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Figure 12 - MT Channel Anchoring to Concrete
Table 81 - 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 )
3,030 |
700 |
3,590 |
600 |
( 13.50 ) |
( 3.12 ) |
( 15.98 ) |
( 0.82 ) |
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 12 . 4 . Load values are for base connector only . Design professional is responsible for checking concrete and fastener strength .
Table 82 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
A . MT-40D
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y lb ft ( kN m )
4,095 |
945 |
4,665 |
815 |
( 18.23 ) |
( 4.21 ) |
( 20.77 ) |
( 1.11 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.65 . 2 . See Figure 12 . 3 . Load values are for base connector only . Design professional is responsible for checking concrete and fastener strength .
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