Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.2 MT Base Connectors
MT-B-T FL / MT-B-T FL OC
Description
‘ T’ shaped base plate preassembled with Fast-Lock for 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
Description |
Environmental Conditions |
MT-B-T FL |
Dry indoor conditions( C1)
Indoor with temporary condensation( C2)
|
MT-B-T FL OC |
Outdoor, low to moderate pollution( C3 / C4- low) |
Ordering Information
Description
Weight Per Piece, lbs( kg)
Quantity Piece( s)
Item No. MT-B-T FL 1.25( 0.57) 16 2399639 MT-B-T FL OC 1.25( 0.57) 16 2399674 mm( in)
Figure 14 – MT Concentric Channel Connection Table 130- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
A. MT-30 / 30D / 40D / 50 / 50U / 50D / 50DU / 60 / 60D
Fx lb( kN)
1,400( 6.24)
Fy lb( kN)
725( 3.23)
Fz lb( kN)
225( 1.01)
1 Minimum safety factor, Ω, for tabulated values is 3.0. 2 Multiply tabulated values by 1.5 to obtain minimum Load and Resistance
Factor Design( LRFD) values. 3 See Figure 14. 4 Load values are for base connector only. Design professionals are responsible for checking concrete and fastener strength.
Table 131- Limit State Design( LSD) Load Data 1, 2, 3
Fx lb( kN)
1,890( 8.42)
Fy lb( kN)
1,005( 4.49)
Fz lb( kN)
310( 1.40)
1 Maximum resistance factor, φ, for tabulated values is 0.45. 2 See Figure 14.
3 Load values are for base connector only. Design professionals are responsible for checking concrete and fastener strength.
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