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Q: Trimming Down a PSL Beam
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- Subject: Q: Trimming Down a PSL Beam
- From: "Bill Polhemus" <bill(--nospam--at)polhemus.cc>
- Date: Tue, 27 Jul 2004 08:01:28 -0500
I have a question from a builder friend of mine. He
inadvertently installed a 17.25” deep PSL beam where he should have put
an 11.25” deep PSL. He wants to know if he can cut the portion of the
beam sticking up 6” too high, essentially making an 11.25” deep PSL
out of the existing 17.25” PSL. I was leery of answering this question because I’m
aware that this is an engineered item, and I am not familiar enough with the
design of the beam itself to know if this “cut-down” beam would be equivalent
in strength to a PSL beam that was ordered the right depth. So my question is: 1) Is there
indeed and equivalent strength? And 2) If not, is
there any way to determine a “strength adjustment factor” (<
1.0) that could be used to determine if the cut-down beam is adequate or not? Thanks. [N.B.: I also submitted this email to the APA’s
helpdesk, but I’m not sure if it’s the kind of question they could
answer so I’m posting it here as well.] |
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