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Re: Steel Joist Table Cutoff

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Title: Steel Joist Table Cutoff
Yes....I've had it explained to me but I do not fully recall the details.  It has to do with a limitation SJI has, (I believe), whereby the maximum length in feet is twice the joist depth in inches.

 
Bobby Jenkins, PE
Jenkins Engineering, Inc.
PO Box 2101
218 S Thomas St  Suite 209
Tupelo, MS  38803
(662) 840.1233 vocal
(662) 840.1103 fax
E-Mail: 
jei(--nospam--at)netbci.com
----- Original Message -----
Sent: Wednesday, July 17, 2002 3:23 PM
Subject: Steel Joist Table Cutoff

Does anybody know why the cutoff for the steel joist tables in the SJI manual is where it is?
I am looking at a 41' span that I want to use a 20K series joist, but the table stops at 40'.
Is there some kind of limit they use to stop the load values?  Has anybody encountered this before?

Zachary Goswick, P.E.
Structural Engineer
Angus-Young Associates, Inc.
555 South River Street
Janesville, WI  53545-4827
Phone: (608)756-2326
Fax: (608)756-0464
Email: zachg(--nospam--at)angusyoung.com