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RE: Bar Joists

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12ft  292 plf
13ft  248 plf
14ft  214 plf
15ft  187 plf
16ft  164 plf
17ft  145 plf
18ft  130 plf
19ft  116 plf
20ft  105 plf

w = 8 M /l^2 also works (don't forget to watch your R max too).


Charles F. Espenlaub, III, P.E.
Martin-Espenlaub Engineering



-----Original Message-----
From: Michael Zaitz [mailto:mzaitz(--nospam--at)hgbd.com]
Sent: Thursday, January 11, 2001 1:16 PM
To: seaint(--nospam--at)seaint.org
Subject: Re: Bar Joists


Roger and Charles

Thanks for the help.  Last question, what if the span is 13'-0"?

Mike

Roger Davis wrote:

> According to a 1930 Steel Joist Institute table, a SJ102 could carry
214 plf
> at 14'-0".  The maximum end reaction was 1900 # and the resisting
moment was
> 63000 inch-pounds.
>
> Roger C. Davis
> Architect
> SDS Architects, Inc.
>