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RE: Wind Load on Wood Fence

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God help me—I can picture a committee writing a lunar engineering standard and debating how conservative the design loads should be on a lunar fence.


I’ve either spent too much time at standards committees and building code hearings, or read too much science fiction.


Quite possibly both. 8-)



Gary J. Ehrlich, PE
Program Manager, Structural Codes & Standards
National Association of Home Builders (NAHB)
1201 15th Street, NW, Washington, DC 20005
ph: 202-266-8545  or 800-368-5242 x8545
fax: 202-266-8369

Attend the 2009 International Builders' Show
January 20-23, 2009, Las Vegas, NV


From: Rhkratzse(--nospam--at) [mailto:Rhkratzse(--nospam--at)]
Sent: Wednesday, December 17, 2008 9:35 PM
To: sch.tectonic(--nospam--at); seaint(--nospam--at)
Subject: Re: Wind Load on Wood Fence


Okay, I'll admit that I just glanced at 6.5.14 and looked at a couple of the referenced equations and it struck me that there actually is *no* end result, that it's just a never-ending chain of references to references.  Reminded me of Alice in the Looking Glass, or falling into the rathole. 

Perhaps if I dug into it I would find that much of it is intended only for space shuttles, or fences on the moon (yes, I know there's no air pressure on the moon; don't bother reminding me. :).


In a message dated 12/17/08 6:26:06 PM, sch.tectonic(--nospam--at) writes:

Its not really that bad is it? Admittedly ASCE7-05 does seem more cumbersome to get at a pressure coefficient than AS1170.2, and mixes up dynamic and static, where as AS1170.2 has clear and distinct sections for static and dynamic.
I would say the gust effect factor has its default value, and not relevant to static analysis of simple structures. But maybe ASCE7-5 does require it. Seems unreasonable though for simple structure.
Conrad Harrison
B.Tech (mfg & mech), MIIE, gradTIEAust

South Australia

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