Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.6 MT Elevator Divider Beam( EDB) Connectors
MT-B-EDB A OC
Description
Parallel beam wall connector for MT-80 and MT-90 girders.
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-B-EDB A OC Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information |
Description |
Weight Per
Piece, lbs( kg)
|
Quantity
Piece( s)
|
Item No. |
MT-B-EDB A OC |
1.01( 0.46) |
10 |
2353810 |
Figure 112 – MT Girder Connection
A. MT-90
Table 330- Allowable Strength Design( ASD) Load Data 1, 2, 3, 4, 5, 6, 7
Fx Fy Fz Mx
My
Mz lb( kN) lb( kN) lb( kN) lb ft( kN m) lb ft( kN m) lb ft( kN m) 1,820 1,055 3,190 80
420 2,665( 8.11)( 4.70)( 14.21)( 0.11)( 0.57)( 3.62)
1 Tabulated values are for elevator divider beam applications only. 2 Tabulated values must be used in conjunction with the stiffness values shown in Table 346. 3 Minimum safety factor, Ω, for tabulated values is 2.1. 4 Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD) values. 5 Tabulated values represent the total allowable load on a pair of base connectors. Connectors must be installed in pairs. 6 Tabulated values are for base connector only. Design professional is responsible for checking concrete and fastener strength. 7 See Figure 112.
Table 331- Limit State Design( LSD) Load Data 1, 2, 3, 4, 5, 6
Fx Fy Fz Mx
My
Mz lb( kN) lb( kN) lb( kN) lb ft( kN m) lb ft( kN m) lb ft( kN m) 2,915 1,690 5,110 125
435 1.110( 12.97)( 7.52)( 22.74)( 0.17)( 0.59)( 1.51)
1 Tabulated values are for elevator divider beam applications only. 2 Tabulated values must be used in conjunction with the stiffness values shown in Table 346. 3 Maximum resistance factor, φ, for tabulated values is 0.7. 4 Tabulated values represent the total factored design load on a pair of base connectors.
Connectors must be installed in pairs. 5 Tabulated values are for base connector only. Design professional is responsible for checking concrete and fastener strength. 6 See Figure 112.
Table 332 – EDB Connection Stiffness Data 1
kMz
Connector lb ft / rad( kN m / rad) 29,330
MT-B-EDB A
( 39.76) 1 Spring stiffness values are to be used in elevator divider beam applications.
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