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RE: Sawn Beam Repair?[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: "'seaoc '" <seaoc(--nospam--at)seaoc.org>
- Subject: RE: Sawn Beam Repair?
- From: "Sprague, Harold O." <SpragueHO(--nospam--at)bv.com>
- Date: Wed, 1 Oct 1997 12:12:00 -0500
Bill, Some years ago, I had a similar problem on a structure. We elected to: 1. Epoxy inject the crack. 2. Lag bolt on small steel WT sections near the ends of the wood member 3. Install a guy cable and post tension the cable to a point where the wood bottom fibers did not go into tension. You must account for the additional post-tension compression load and the wood beam must be properly braced to resist beam column action. But in our application, it was not a problem. Generally you can provide additional bracing to avoid a problem with combined compression and bending. The member also must be checked for post-tension and wind uplift loading if it is a roof beam. Regards, Harold Sprague Black & Veatch ---------- From: Bill Allen To: 'seaoc(--nospam--at)seaoc.org' Subject: Sawn Beam Repair? Date: Wednesday, October 01, 1997 10:12AM I am working on a project that is currently in construction. This is a single family residence. I have specified a 4x12 #2DF beam supporting some ceiling framing at the second floor. According to the contractor, the beam had a slight crown (upward camber) when installed. Near the midspan of the beam, there exists a knot near the bottom edge of the beam near the midspan. A crack has developed at the knot and the beam is sagging. Short of replacing the beam, is anyone aware of a practical technique to repair this beam? Thanks, Bill Allen
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