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RE: Shear Wall Design / Bill@AllenDesigns

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Hey Bill...

What's the deal w/ the last comment?  What does "daddy" and a raise have to
do w/ the question he asked?  He seemed earnest enough when he asked the it a problem to ask for insight or help on a problem?
Especially if you aren't as experienced as yourself?

Seems like perhaps you haven't had all of your fun yet...Why don't you check
w/ your accountant (if its not you) and ask for a raise yourself...then
EVERYBODY will have some fun...

		-----Original Message----
		From:	Bill Allen [mailto:Bill(--nospam--at)]
		Sent:	Wednesday, November 17, 1999 2:53 PM
		To:	seaint(--nospam--at)
		Subject:	RE: Shear Wall Design / Bill@AllenDesigns

		O.K., now that I have had my fun, I'll try to answer your

		I don't know about "insight", but I can tell you how I
design shear walls,
		and you may not like the answer because it is not

		First of all, I check my budget. If the budget is tight, I
don't worry about
		using the DL to resist the hold down forces. I just
calculate f-sub-v * h
		and go from there. If I have the budget, yes, I will use
either .85 (now
		0.90 or 2/3 for WL cases) * DL to resist overturning forces
and not bump up
		the shear wall stresses. Why? Well, number one, that's the
way I was taught.
		Two, I have not seen widespread documentation where shear
walls have failed
		because the design engineer neglected this facet in his/her
free body
		diagram. From what I understand, much to the disappointment
of those
		"clinical" structural engineers (i.e., academians), plywood
shear wall
		assemblies do not behave according to strict structural
mechanics. You would
		get a glimpse of this by reading APA Report 157. From my
point of view, I
		try (again, when I have the budge to work with) to be
economical with
		regards to hold downs but ensure I have a LOAD PATH FROM
		More structures fail because an element was left out than if
that element
		was undersized.

		Now, go ask daddy for a raise.


		Bill Allen, S.E.
		Laguna Niguel, CA

		||-----Original Message-----
		||From: BDWOLF123(--nospam--at) [mailto:BDWOLF123(--nospam--at)]
		||Sent: Wednesday, November 17, 1999 10:01 AM
		||To: seaint(--nospam--at)
		||Subject: Re: Shear Wall Design / Bill@AllenDesigns
		||Hey Bill,
		||Think for a minute how that could happen.  I am no
		||however my
		||father is the owner and one of the principal engineers at
		||firm.  Now, do
		||you have any insight on the question or not?
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