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Re: OSHA stairs

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Harold Sprague wrote:
> 
> Bill,
> 
> I consulted our local OSHA safety guru.  OSHA has a web site that can be
> used to pose questions such as this.  I did not go through that, but our
> guru said that paragraph (a) limits the scope and excludes egress stairs.
> 
> To say that the paragraph is ambiguous is an understatement.  You could make
> the case that the 1000 pound load is over a 3'-6" square area making the 100
> psf case govern.  You could also make the case that paragraph c is headed by
> "Stair strength" and take it to ultimate.  You could also claim that any of
> these stairs are for emergency egress and technically dodge this bullet.
> 
> (Help me!  I am sounding like a lawyer!)
> 
> As many industrial stairs as I have designed, I have never designed for the
> OSHA provision that you have sited.
> 
> Any other structural industrial types care to wade in?
> 
> Regards,
> Harold Sprague
> The Neenan Company
> harold.sprague(--nospam--at)neenan.com
> .........................................................................Harold:

In designing and altering industrial structures for AlliedSignal in the
last 7 years I have never deviated from 100 psf LL or 300 pounds
concentated load on any tread, stringer, rung, landing, ramp, etc., with
no rejections!!!


Donn Wooldridge  RA/SE
Phoenix AZ