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# RE: Perforated shear wall design

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• To: <seaint(--nospam--at)seaint.org>
• Subject: RE: Perforated shear wall design
• From: "Schwan, Martin K." <SchwanMK(--nospam--at)ci.anchorage.ak.us>
• Date: Tue, 2 Dec 2003 13:09:44 -0900

```The tension chord force is calculated at each end of the perforated
shear wall (T = Vh/[Co x sum Li]) NOTE I FORGOT h in my earlier
post...sorry.  Compression chord force is provided at each end of each
perforated shear wall segment.  C = Vh/[Co x sum Li]

-----Original Message-----
From: Roberto salinas [mailto:salinas_roby(--nospam--at)hotmail.com]
Sent: Tuesday, December 02, 2003 12:35 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Perforated shear wall design

Do i need to consider the tension and compression on each of the
internal
segments that make up the total full height sheething (SUM Li). or just
the
ends?

>From: "Schwan, Martin K." <SchwanMK(--nospam--at)ci.anchorage.ak.us>
>Reply-To: <seaint(--nospam--at)seaint.org>
>To: <seaint(--nospam--at)seaint.org>
>Subject: RE: Perforated shear wall design
>Date: Tue, 2 Dec 2003 12:21:14 -0900
>
>You must consider what are the tension and compression forces.  Each
end
>of each perforated shear wall segment shall be designed for a
>compression force = tension force.  The compression chord force at the
>end of each perforated shear wall segment is T = C = Vh/[Co x sum Li],
>Where Co = shear resistance adjustment factor and sum Li = sum of the
>widths of perforated shear wall segments (full height sheathing).
>
>-----Original Message-----
>From: Roberto salinas [mailto:salinas_roby(--nospam--at)hotmail.com]
>Sent: Tuesday, December 02, 2003 11:48 AM
>To: seaint(--nospam--at)seaint.org
>Subject: Perforated shearwall design
>
>I have a perforated shearwall question see if some one can help me out.
>If
>i design a perforated shearwall instead of two standard shear wall
>separated
>by a window, i only need to provide hold-downs at both ends.  My
>question
>is, in designing the supporing Element(Beam), do i still consider the
>tension and compression forces at the ends of the oppening in the
middle
>of
>my shear wall or just the forces at the ends of the perforated shear
>wall?
>
>Roberto Salinas, PE
>San Jose, CA
>
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