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RE: Cost Effective Mechanical Lap Splice?[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: <seaint(--nospam--at)seaint.org>
- Subject: RE: Cost Effective Mechanical Lap Splice?
- From: "Paul Feather" <PFeather(--nospam--at)se-solutions.net>
- Date: Wed, 3 Dec 2008 15:53:08 -0800
The Erico Lenton threaded couplers are the very best, and we use them as well as the Formsavers and Terminators regularly in new construction. The tapered thread system on the Erico couplers is superb and will fully develop the bars. I believe Dayton Superior went to a system where they provide the lap dowel with an upset end for their threaded coupler because of what you are saying, but we never specify the threaded Dayton Superior couplers and no-one asks for a substitution.
The Dayton Bar-Lock is actually a non-threaded coupler with a series of interior deformations and then special fasteners that when tightened mold the coupler onto the bar. The Erico Lenton Lock is similarly a non-threaded alternative coupler. Since the dowels are existing but insufficient length, a non-threaded solution will be better than trying to thread the bars in the field. For non-threaded applications we see the Dayton product regularly. We do not specify non-threaded couplers for typical new construction because they are much bigger and bulkier than the threaded couplers, but for a wall fix they would work quite nicely.
Paul Feather PE, SE
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