Sheffield Joists

I have a joist tag from a 14 inch open-web bar joist that reads "1678  146-195F" and which was made by the Sheffield Steel Corporation.  The joist chords are hot-rolled angles.

 

I don't know when the structure (a mezzanine floor) was built; a reasonable guess would be the 1970's or 1980's, but it is an addition to a much older building and we have no drawings.

 

I've looked through the SJI 50 Year Digest, but without knowing when it was built, I don't get very far.

 

Does anyone know how to determine what type of joist (S, H, J, etc.) this tag comes from?  I have some old Sheffield tables, but again without more information I come up short.

 

Thanks for any help.

 

Mike Hemstad

MBJ

Minneapolis, Minnesota

 

Michael Hemstad, P.E.

 

 

Meyer, Borgman and Johnson, Inc.

 

12 South Sixth Street

Suite 810

Minneapolis, MN 55402

(612) 338-0713 (main)

(612) 604-3621 (direct)

(612) 337-5325 (fax)
www.mbjeng.com