Modular Support Systems Technical Guide , Edition 1
3.0 MODULAR SUPPORT SYSTEM |
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3.2.4 MT SPLICE CONNECTORS |
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MT-ES-70 OC |
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Description |
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Splice connector for coupling MT-70 or MT-80 girders end-to-end . |
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Material Specifications |
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Standard 1 Grade 1 F y , ksi ( MPa ) F u
, ksi ( MPa )
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GB / T 1591 Q355 B 51.49 ( 355 ) 68.17 ( 470 ) |
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1 . Mechanical properties of GB / T 1591 Grade Q355 B meet or exceed the mechanical properties of ASTM A1011 SS Grade 50 . |
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Corrosion Protection
Hot-Dipped Galvanized ( HDG )
MT-ES-70 OC
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Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No . MT-ES-70 OC 4.03 ( 1.83 ) 4 2272078
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mm ( in )
Figure 65 - MT Splice Connection
Table 187 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
10,180 |
1,100 |
1,795 |
( 45.30 ) |
( 4.90 ) |
( 8.00 ) |
1 . Minimum safety factor , Ω , for tabulated values is 2.05 . 2 . Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD ) values . 3 . See Figure 65 .
Table 188 - Limit State Design ( LSD ) Load Data 1 , 2
A . MT-70
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
13,240 |
1,435 |
2,335 |
( 58.90 ) |
( 6.40 ) |
( 10.40 ) |
1 . Maximum resistance factor , ϕ , for tabulated values is 0.75 . 2 . See Figure 65 .
Figure 66 - MT Splice Connection
Table 189 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y ft lb ( kN m )
20,360 |
2,200 |
3,595 |
3,340 |
( 90.60 ) |
( 9.80 ) |
( 16.00 ) |
( 4.53 ) |
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 66 .
Table 190 - Limit State Design ( LSD ) Load Data 1 , 2
A . MT-80 ( long side )
F x lb ( kN )
F y lb ( kN )
F z lb ( kN )
M y ft lb ( kN m )
26,480 |
2,875 |
4,675 |
4,340 |
( 117.80 ) |
( 12.80 ) |
( 20.80 ) |
( 5.89 ) |
1 . Maximum resistance factor , ϕ , for tabulated values is 0.6 . 2 . See Figure 66 .
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