Modular Supports System Product Technical Guide June 2026 | 页面 118

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.3 MT System Connectors
MT-C-GS HA OC
Description
Angle connector for MT-90H, MT-90, MT-80 and MT-70 girders. Used as a base for attachment to concrete or steel( X- BT / S-BT / F-BT compatible).
Material Specifications
Description
Standard
Grade
F y, ksi
( MPa)
F u, ksi
( MPa)
MT-C-GS HA OC
( GB / T 1591)
( Q355 B)
51.49
( 355)
68.17
( 470)
MT-C-GS HA US OC ASTM A1011 1
HSLAS-F
Grade 50 MOD 1
51.49
( 355)
68.17
( 470)
1 ASTM A1011 HSLAS Grade 50 MOD is an enhanced version of ASTM A1011 HSLAS Grade
50 with Fu >= 470MPa and Fy >= 355MPa.
Corrosion Protection
Description
Environmental Conditions MT-C-GS HA OC Outdoor, low to moderate pollution( C3 / C4- low) MT-C-GS 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-GS HA OC 0.93( 0.42) 10 2430775 MT-C-GS HA US OC 0.93( 0.42) 10 2487870
mm( in)
Figure 58 – MT Single Angle Connection B
A
A.
MT-90H
B.
MT-70, MT-80( short side)
Figure 59 – MT Double Angle Connection B
Table 218- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fx Fy
lb( kN)
lb( kN)
lb( kN)
790
225
645
( 3.53)
( 1.02)
( 2.87)
1 Minimum safety factor Ω, for tabulated values is 2.32.
2 Multiply tabulated values by 1.5 to obtain minimum Load
and Resistance Factor Design( LRFD) values.
3 See Figure 58.
Table 219- Limit State Design( LSD) Load Data 1, 2
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
1,120( 5.00)
325( 1.45)
910( 4.06)
1 Maximum resistance factor φ, for tabulated values is 0.74.
2 See Figure 58.
Table 220- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN m)
2,830( 12.6)
470( 2.1)
1,145( 5.09)
630( 0.857)
1 Minimum safety factor Ω, for tabulated values is 2.0.
2 Multiply tabulated values by 1.5 to obtain minimum LRFD values.
3 See Figure 59.
Fz
Table 221- Limit State Design( LSD) Load Data 1, 2
Fx Fy
lb( kN)
lb( kN)
lb( kN)
lb( kN m)
4,890
670
1,660
890
( 21.7)
( 3.0)
( 7.4)
( 1.21)
1 Maximum resistance factor φ, for tabulated values is 0.75.
2 See Figure 59.
Fz My
A.
MT-90H
B.
MT-70, MT-80( short side)
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