Modular Supports System Product Technical Guide June 2026 | Page 95

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.2 MT Base Connectors
MT-B-GL O4C OC
Description
4-hole productivity base plate for MT-90 / MT90H for girder-toconcrete.
Material Specifications
Description
Standard
Grade
F y, ksi
( MPa)
MT-B-GL O4C OC
( GB / T 1591)
( Q355 B)
51.49
( 355)
MT-B-GL O4C US OC
( ASTM A1011 /
ASTM A1018) 1
HSLAS-F
Grade 50 MOD 1
51.49
( 355)
F u, ksi( MPa) 68.17( 470) 68.17( 470)
1 ASTM A1011 / ASTM A1018 HSLAS Grade 50 MOD is an enhanced version of ASTM A1011 / ASTM A1018 HSLAS Grade 50 with Fu >= 470MPa and Fy >= 355MPa. mm( in)
Corrosion Protection
Description
Environmental Conditions
MT-B-GL O4C OC
Outdoor, low to moderate pollution( C3 / C4- low)
MT-B-GL O4C US OC
Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information
Description
Weight Per
Piece, lbs( kg)
Quantity
Piece( s)
Item No.
MT-B-GL O4C OC
15.05( 6.83)
2
2343282
MT-B-GL O4C US OC 15.05( 6.83) 2 2487860
Figure 34 – MT-90 Anchoring to Concrete Table 170- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
A. MT-90 / 90H
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN m)
Mz lb ft( kN m)
9,840( 43.76)
2,250( 10.01)
3,215( 14.50)
2,240( 3.04)
2,330( 3.16)
1 Minimum safety factor, Ω, for tabulated values is 2.75.
2 Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD) values.
3 Load values are for base connector only. The design professional is responsible for
checking concrete and fastener strength.
4 See Figure 34.
Table 171- Limit State Design( LSD) Load Data 1, 2, 3
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN m)
Mz lb ft( kN m)
13,965
( 62.12)
3,380
( 15.04)
4,560
( 20.30)
2,905
( 3.94)
3,190
( 4.33)
1 Maximum resistance factor, φ, for tabulated values is 0.6.
2 Load values are for base connector only. The design professional is responsible for
checking concrete and fastener strength.
3 See Figure 34.
94 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