Modular Supports System Product Technical Guide June 2026

Modular Support Systems Technical Guide, Edition 2

3.0 Modular Support System

3.2.3 MT System Connectors

MT-C-GS A OC

Description

Adjustable angle bracket for girder-to-girder connections. 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-GS A OC	Outdoor, low to moderate pollution( C3 / C4- low)
MT-C-GS A US OC	Outdoor, low to moderate pollution( C3 / C4- low)

MT-C-GS A US OC 0.86( 0.39) 10 2487453 mm( in)

Figure 56 – MT Single Angle Connection

Table 214- Allowable Strength Design( ASD) Load Data 1, 2, 3

Fx lb( kN)	Fy lb( kN)	Fz lb( kN)
1,025( 4.56)	535( 5.40)	2,075( 9.23)
1 Minimum Safety Factor, Ω, for tabulated values is 2.0.
2 Multiply tabulated values by 1.5 to obtain minimum Load
and Resistance Factor Design( LRFD) values.
3 See Figure 56.

A.	MT-70 / 80( short side)
B.	MT-70 / 80 / 90 / 100

Figure 57 – MT Double Angle Connection

Table 215- Limit State Design( LSD) Load Data 1, 2

Fx lb( kN)	Fy lb( kN)	Fz lb( kN)
1,445( 6.44)	810( 3.61)	2,675( 11.91)
1 Maximum Resistance Factor( φ) used for LSD is 0.7.
2 See Figure 56.

Table 216- Allowable Strength Design( ASD) Load Data 1, 2, 3

Fx Fy

lb( kN)	lb( kN)	lb( kN)	lb ft( kN m)
3,295	1,590	6,120	1,075
( 14.66)	( 7.07)	( 27.23)	( 1.46)
1 Minimum Safety Factor( Ω) used for ASD is 2.0.
2 Multiply tabulated values by 1.5 to obtain( LRFD) values.
3 See Figure 57.

Table 217- Limit State Design( LSD) Load Data 1, 2

Fz My

Fx Fy

lb( kN)	lb( kN)	lb( kN)
4,280	2,385	8,685
( 19.06)	( 10.63)	( 38.65)
1 Maximum Resistance Factor( φ) used for LSD is 0.75.
2 See Figure 57.

My lb ft( kN m) 1,525( 2.07)

A.	MT-70 / 80( short side)
B.	MT-70 / 80 / 90 / 100

Modular Supports System Product Technical Guide June 2026 | Page 117