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MidWall™ |
Partial Wall Framing and Base Connection |
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Product Application
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MidWall™ is designed to support out-of-plane loading in partial
wall systems that are unsupported at the top track. The out-of-plane loads are transferred
to the floor system through a ˝” thick plate nested in the flanges of the member
with two 3/8” diameter fasteners used for the connection. Available in two lengths,
24” and 48”. MidWall™ may be used in place of standard framing members, or in conjunction
with them to frame the wall.
Material
Composition
MidWall™: ASTM A1003/A 1003M, ASTM A653/A653M, Grade 50 (340),
50ksi (340MPa) minimum, 65ksi (450MPa) minimum yield strength, G-90 (Z275) hot-dipped
galvanized coating. Material Thickness = 118mil (10 gauge, 0.1017” design thickness)
MidWall™ Plate: ASTM A36/A36M 08, 36ksi (250MPa) minimum yield
strength, 58-80ksi (400-500MPa) tensile strength, ˝” thick.
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MidWall™ Value:
- Replaces labor/coordination of placing embedded angle into the floor system
- Provides guide holes for attachment of MidWall™ to the stud (more
efficient attachments compared with tube steel)
- Reduces the number of anchors used (2 in MidWall™ vs. 4 in other
methods)
- Creates flexibility as two sizes of MidWall™ are available (24” and 48”) to enable
adjustable wall heights
- current code requirements for handrails and partial walls
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MidWall™
Nomenclature
MidWall™ is currently available in two lengths (24” and 48”) and
one depth (3.625”). Product nomenclature lists the member depth first followed by
the height in inches.
- For 24” MidWall™, designate 362MW-24
- For 48” MidWall™, designate 362MW-48
MidWall™
Ordering Information
MidWall™ is available by the box or in pallet (skid) quantities
through your local dealer. Each MidWall™ product will be shipped with a separate
base plate.
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Designation
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Pcs/Box
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Lbs/Pc
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Pcs/Skid
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Lbs/Skid
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362MW-24
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8
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7.5
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160
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1200
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362MW-48
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4
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13.5
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120
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1500
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MidWall™
Installation
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MidWall™
24” Assembly Example
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MidWall™
48” Assembly Example
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MidWall™ 24” is generally used in interior half walls of less than
48” in height. Attach MidWall 24" to stud with #12 screws through all pre-drilled
guide holes. Maximum spacing between MidWall™ connectors is 36”
o.c. (see table below). Contact TSN Technical Services at (888) 474-4876 for design
recommendations.”
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MidWall™ 48" is used in interior half walls equal to 48" in height.
Use one MidWall 48" as a substitute for a stud at the specified spacing. Maximum
spacing between MidWall™ connectors is 36" o.c. (see table below).
Contact TSN for technical support regarding use in exterior or 6" wide walls.
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MidWall™
Design Information
Criteria
IBC 2003 & 2006
Refer to Section 1607.7.1
Worst case of A or B:
A: 50 lb/ft applied in any direction at the top of wall
B: 200 lbs applied in any direction at any point at the top of the wall
Procedure
A point load at a MidWall™ support is distributed to an adjacent
MidWall™ support based on top track stiffness. Refer to the diagram
at right for an example of the distribution of the point load, P, to adjacent MidWall™
supports.
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MidWall™
Spacing1
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Min. Top Track
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Max. Tension in Anchor2 (lbs.)
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Anchorage Options2(4,000 psi minimum concrete strength)
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24" o.c.
(End of Wall requires two MidWall spaced 12")
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362T150-54
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2685
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3/8" HAS Super with HY-150 Max Adhesive, 3-1/2" Embed. (Hilti)
3/8" ASTM A93 GR. B7 Threaded Rod w/ A7 Adhesive, 3-3/8" Embed. (Red Head)
3/8" IXP Anchor w/ Set-XP Epoxy, 3-3/8" Embed. (Simpson)
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30" o.c.
(End of Wall requires two MidWall spaced 16")
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362T200-54
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2890
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3/8" HAS Super with HY-150 Max Adhesive, 3-3/8" Embed. (Hilti)
3/8" IXP Anchor w/ Set-XP Epoxy, 3-3/8" Embed. (Simpson)
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32" o.c.
(End of Wall requires two MidWall spaced 16")
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362T200-54
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2976
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3/8" HAS Super with HY-150 Max Adhesive, 3-3/8" Embed. (Hilti)
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36" o.c.
(End of Wall requires two MidWall spaced 16")
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362T200-54
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3166
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3/8" HAS Super with HVA Capsule Adhesive, 5-1/4" Embed. (Hilti)
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1 At the end of the wall, MidWall™ is required at adjacent stud spacings.
Spacing given begins after two adjacent end supports.
2 All design data and anchorage options based on 48” maximum wall height.
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