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Re: Bar Joists

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Michael,

SJ102
Depth = 10"
Mr = 63,000 in-lbs
Rmax = 1900 lbs
and for a 14'-0", span Allowable Load = 214 plf

The steel designation is A9-29 w/ a max tensile stress = 18 ksi

The possible chord sizes may be 1 x 1 x 1/8 or 1/2 dia. bars.

These values are from SJI Technical Digest No. 7 "50-Year Steel Joist
Digest, 1928 - 1978".  This book is pretty valuable if you deal with alot of
older buildings.

Hope this helps.

Alden Manipula
Structural E.I.T.
www.novagroupinc.net


----- Original Message -----
From: "Michael Zaitz" <mzaitz(--nospam--at)hgbd.com>
To: "Structural Engineers Association" <seaint(--nospam--at)seaint.org>
Sent: Thursday, January 11, 2001 9:09 AM
Subject: Bar Joists


> Good Morning All
>
>  I have a building built in 1936 concrete columns and beams supporting
> bar joists with a 2 " concrete slab and flooring.  The existing plans
> show S.J.. 102 at 23 1/2" o.c.  spanning 14'-0".  Can anyone give me any
> information on these?  I have not gone to look at them but I plan too in
> the near future.  Based on my experience with joists (fairly limited)
> these are 10" deep joists and the 2 stands for the chord sizes (am I
> correct in this)?
>
> Thanks,
>
> Mike