Modular Supports System Product Technical Guide June 2026 | Page 129

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.3 MT System Connectors
MT-C-GSP L A OC
Description
T-shaped adjustable 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 A 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 A OC
1.02( 0.46)
10
2332786
mm( in)
Figure 76 – MT Girder Connection
Table 254- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN m)
Mz lb ft( kN m)
4,460( 19.84)
580( 2.57)
3,115( 13.86)
360( 0.49)
360( 0.49)
1 Minimum safety factor, Ω, for tabulated values is 2.25.
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 76.
Table 255- Limit State Design( LSD) Load Data 1, 2, 3
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN m)
6,405
865
4,290
505
( 28.50)
( 3.86)
( 19.10)
( 0.69)
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 76.
Mz lb ft( kN m) 545( 0.74)
A. MT-70 / 80
128 Modular Support Systems Technical Guide Edition 2 | Installation Systems Hilti, Inc. 1-800-879-8000 | en español 1-800-879-5000 | www. hilti. com | Hilti( Canada) Corporation | 1-800-363-4458 | www. hilti. ca