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RE: Open web steel joists

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Are you changing the span length as well once you have added back your new half such that the new midspan is offset from the original midspan?

 

If so, you may have to strengthen web member where tension members have become compression in the remaining half.

 

Matthew Stuart

Structural Dept. - Manalapan

732-577-9889 x1283

 

 

-----Original Message-----
From: James Cohen [mailto:jccpc(--nospam--at)msn.com]
Sent: Wednesday, September 21, 2005 2:57 PM
To: seaint(--nospam--at)seaint.org
Subject: Open web steel joists

 

Does anyone know if (and if so, how) the load tables for open web steel joist size 20LH06 have changed since 1979? I have a project where they need to be cut in half, half removed, the other half temporarily supported and then a new piece spliced back on. Right now I am considering a "like for like" replacement, but first want to know if these have been downgraded in any way over the last 25 years. Thanks for any help.

 

James Cohen, PE
James Cohen Consulting, PC
http://expertpages.com/jccpc