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Old 10-25-2010, 01:48 PM   #1
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bolting joists together


what are the guidlines for bolting 2x10 lumber together to create a beam?

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Old 10-25-2010, 03:31 PM   #2
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bolting joists together


The bolts, spacing, and placement should be on the plans from the Engineer.

If just a built-up header: 14. Continuous header, two pieces 16d at 16" (406 mm) o.c. along each edge.

If you need more strength: http://www.finehomebuilding.com/how-...-up-beams.aspx

What is the application?

Gary

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Old 10-25-2010, 04:35 PM   #3
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bolting joists together


it is a exsisting condition I found there are 6 2x10's bolted with 5/8" bolts top and bottom every 16" inches
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Old 10-25-2010, 05:23 PM   #4
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bolting joists together


Sounds as if it may have been inspected or designed by an Engineer. We do have some resident Engineers on here, maybe they will chime in............ Did you try the county records to check for the permit number? It may be on file unless very long ago.

Is something settling or another concern? The bolt spacing, size, and placement would be designed for the loads, span, etc. for each particular case. I know the bolts stay out of the top and bottom 1-1/2" or so of the wood. If just verifying for piece of mind you would hire a local S.E. for an on site visit and consultation.

Gary
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Old 10-25-2010, 05:29 PM   #5
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bolting joists together


Quote:
Originally Posted by artmark View Post
it is a exsisting condition I found there are 6 2x10's bolted with 5/8" bolts top and bottom every 16" inches
Is there a Problem,..??

It sounds Waay overbuilt...
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Old 10-25-2010, 09:42 PM   #6
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bolting joists together


I do not beleive there is a problem but thought it was excessive and was concerned about so much wood being displaced it is also side loaded with 6 joists bolted together the same from foundation to a joist hanger with 26 nails?
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Old 10-25-2010, 11:26 PM   #7
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bolting joists together


Here one with 72 nails, for a glu-lam: http://www.strongtie.com/products/co...U-HGU-HHGU.asp
Work around here for yours; look on the hanger bottom for the #’s: http://www.strongtie.com/products/al...?source=topnav

Gary
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Old 10-26-2010, 09:12 AM   #8
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bolting joists together


it is a hhus? I know that to few bolts would be a bad thing are to many bolts a bad thing?
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Old 10-26-2010, 04:18 PM   #9
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bolting joists together


Can you give us a close-up picture of the bottom and one of the hanger from 2' away?

Gary
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Old 10-26-2010, 08:45 PM   #10
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bolting joists together


they are hgus 7.25x10 removed more sheetrock my wife is going to kill me the beam is 5 2x10's double bolted at the ends only. the bolts in the feild are alternating top and bottom same with side load, side load holds up 5 joists grouped together running same direction attatched with same hgus and 3 additional joists so my mane concern does that many bolts weaken the wood? and will have failure sometime in future?

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