Modular Supports System Product Technical Guide June 2026 | Page 122

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.3 MT System Connectors
MT-C-GSP L OC
Description
L-shaped angle gusset plate connector for MT-70 and MT- 80 girders.
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
Description
Environmental Conditions MT-C-GSP L OC Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information
Description
Weight Per
Piece, lbs( kg)
Quantity
Piece( s)
Item No.
MT-C-GSP L OC
0.93( 0.42)
10
2272073
mm( in)
Figure 64 – MT Girder Connection
Table 230- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN cm)
Mz lb ft( kN m)
3,040( 13.52)
785( 3.50)
2,420( 10.76)
560( 0.76)
300( 0.41)
1 Minimum safety factor, Ω, for tabulated values is 2.1.
2 Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD) values.
3 Tabulated values are based on plates being installed in pairs.
4 See Figure 64.
Table 231- Limit State Design( LSD) Load Data 1, 2, 3
A. MT-70 / 80
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN cm)
4,310
1,180
3,435
815
( 19.19)
( 5.25)
( 15.28)
( 1.11)
1 Maximum resistance factor, φ, for tabulated values is 0.7.
2 Tabulated values are based on plates being installed in pairs.
3 See Figure 64.
Mz lb ft( kN m) 455( 0.62)
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