Modular Supports System Product Technical Guide June 2026 | Page 120

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.3 MT System Connectors
MT-C-GL HA OC
Description
Angle connector for MT-90H, MT-90 and MT-100 girders. Used as base for attachment to concrete or steel( X-BT / S- BT / F-BT compatible).
Material Specifications
Description
Standard
Grade
F y, ksi
( MPa)
MT-C-GL A OC
( GB / T 1591)
( Q355 B)
51.49
( 355)
MT-C-GL A US OC ASTM A1011 1
HSLAS-F
Grade 50 MOD 1
51.49
( 355)
F u, ksi( MPa) 68.17( 470) 68.17( 470)
1 ASTM A1011 HSLAS Grade 50 MOD is an enhanced version of ASTM A1011 HSLAS Grade 50 with Fu >= 355MPa and Fy >= 470MPa.
Corrosion Protection
Description
Environmental Conditions MT-C-GL HA OC Outdoor, low to moderate pollution( C3 / C4- low)
MT-C-GL HA US OC Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information
Description
Weight Per Piece, lbs( kg)
Quantity Piece( s)
Item No. MT-C-GL HA OC 2.71( 1.23) 10 2430759 MT-C-GL HA US OC 2.71( 1.23) 10 2487861
mm( in)
Figure 62 – MT Single Angle Connection Table 226- Allowable Strength Design( ASD) Load Data 1, 2, 3
A. MT-90H
Fx Fy
lb( kN)
lb( kN)
lb( kN)
2,290
595
1,180
( 10.2)
( 2.66)
( 5.26)
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 62.
Table 227- Limit State Design( LSD) Load Data 1, 2
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
3,235( 14.4)
895( 3.98)
1,675( 7.46)
1 Maximum Resistance Factor φ, for tabulated values is 0.75.
2 See Figure 62.
Fz
Figure 63 – MT Double Angle Connection
Table 228- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fx
Fy
lb( kN)
lb( kN)
lb( kN)
lb ft( kN m)
3,260
2,050
4,425
1,395
( 14.5)
( 9.13)
( 19.7)
( 1.89)
1 Minimum Safety Factor Ω, for tabulated values is 2.02.
2 Multiply tabulated values by 1.5 to obtain minimum LRFD values.
3 See Figure 63.
Table 229- Limit State Design( LSD) Load Data 1, 2
Fz
My
A
A.
MT-90H
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN m)
4,630( 20.6)
2,515( 11.2)
5,395( 24.0)
1,975( 2.68)
1 Maximum Resistance Factor φ, for tabulated values is 0.70.
2 See Figure 63.
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