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RE: Question regarding GLB

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Janelle:

When we run into this situation, we shore the beam, pressure inject epoxy
into the break and bolt a channel to each side.  It doesn't look too pretty,
but it seems to work okay.

If reinforcing it doesn't work because of architectural concerns, you might
have to replace it.

Joseph M. Otto, P.E.
Ireland Engineering
Fremont, CA

-----Original Message-----
From: JANELLE L. PERRY [mailto:jlp(--nospam--at)schneiderassoc.com]
Sent: Wednesday, December 08, 1999 2:25 PM
To: seaint(--nospam--at)seaint.org
Subject: Question regarding GLB


I have been asked to design a repair for a Glue-Lam beam approx. 20-30
years old.

The beam seems to have failed in tension at a finger-joint in the bottom
lamination and delaminated up from the failure 3' and above the failure
at the center of the beam. (or vice versa, I suppose).

The beam is in an exposed condition, which makes the fix more difficult.
It is a 5 1/8" x 18" beam spanning 30' with the failure occurring about
10' from the face of support.  The beam holds about 15' of tributary
tile roof, sloped at approx. 4:12.

I would appreciate any help or guidance.

Thanks.

Janelle