Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM 3.2.2 MT BASE CONNECTORS
MT-B-L
Description
1-hole base plate for channel-to-concrete or channel-tosteel ( 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-L
Hot-Dipped Galvanized ( HDG )
MT-B-L OC
Ordering Information
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Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No .
MT-B-L 0.27 ( 0.12 ) 20 2272086 MT-B-L OC 0.27 ( 0.12 ) 20 2272088
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Figure 6 - MT Channel Anchoring to Concrete
Table 69 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3 , 4
F x lb ( kN )
F z lb ( kN )
975 |
975 |
( 4.35 ) |
( 4.35 ) |
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 6 . 4 . Load values are for base connector only . Design professional is responsible for checking concrete and fastener strength .
Table 70 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
A . MT-30 / 50 / 60 / 40D
F x lb ( kN )
F z lb ( kN )
1,290 |
1,290 |
( 5.74 ) |
( 5.74 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.6 . 2 . See Figure 6 . 3 . Load values are for base connector only . Design professional is responsible for checking concrete and fastener strength .
2023
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