To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
Subject: RE: handrail vert. spacing
From: Nicholas Blackburn <nblackburn(--nospam--at)fdgoak.com>
Date: Thu, 8 Mar 2001 08:28:02 -0800
We typically use 4'oc in concrete unless there is room to provide a good
embed, ie not near an edge, plenty of depth.
The posts do not typically calc out at anything over 4'oc due to
architectural size constraints.
I remember a discussion on the list six months or more ago about post
spacing. One of the list indicated familiarity with testing that had been
done to see what the limits were. I don't recall exactly what the results
were but it seemed that the systems tested performed in excess of what the
posts calc'd out at.
Subjectively, The handrail/guardrail systems I have examined deflect
considerably less than a simple calc of the post and post/embed connection
Nick Blackburn, PE
From: Jim Kestner [mailto:jkestner(--nospam--at)somervilleinc.com]
Sent: Thursday, March 08, 2001 8:02 AM
Subject: Re: handrail vert. spacing
For pipe rail, meeting the 50 plf load requirement, I do not believe the
6 foot spacing will work. For the 200# load only, a 6 foot maximum
spacing should be OK.
Green Bay, WI