Product Technical Guides : CA-EN Modular Systems Product Technical Guide | Page 63

Modular Support Systems Technical Guide, Edition 1
3.0 MODULAR SUPPORT SYSTEM
3.2.2 MT BASE CONNECTORS
MT-B-GL O4 OC
Description
4-hole base plate for MT-90 girder-to-concrete.
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
Hot-Dipped Galvanized( HDG)
MT-B-GL O4 OC
Ordering Information
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Description
Weight Per Piece lbs( kg)
Quantity Piece( s)
Item No.
MT-B-GL O4 OC 30.86( 14) 1 2272103
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Figure 16- MT Girder Anchoring to Concrete
Table 89- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4
F x lb( kN)
F y lb( kN)
F z lb( kN)
M y lb ft( kN m)
M z lb ft( kN m)
27,175
12,265
12,265
5,560
5,560
( 120.9)
( 54.56)
( 54.56)
( 7.54)
( 7.54)
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 16. 4. Load values are for base connector only. Design professional is responsible for checking concrete and fastener strength.
Table 90- Limit State Design( LSD) Load Data 1, 2, 3
A. MT-90
F x lb( kN)
F y lb( kN)
F z lb( kN)
M y lb ft( kN m)
M z lb ft( kN m)
38,505
17,375
17,375
7,845
7,845
( 171.3)
( 77.29)
( 77.29)
( 10.64)
( 10.64)
1. Maximum resistance factor, Φ, for tabulated values is 0.75. 2. See Figure 16. 3. Load values are for base connector only. Design professional is responsible for checking concrete and fastener strength.
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