hanging open web floor joist
Last Post 02 Jan 2008 02:02 PM by Cattail Bill. 10 Replies.
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mewldgydUser is Offline
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28 Dec 2007 03:24 PM
I want to use open web trimmable floor joist to support the 2nd story of an ICF single family home. I would like some ideas on how i Might hang these joist from the wall. problem ,both ends of the joist must be cut at angles on site
Chris JohnsonUser is Offline
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28 Dec 2007 03:31 PM
When you say cut at angles I am assuming you need to cut on a say 45 degree angle for say a 45 degree wall? Is so attach at ledger to the ICF with either anchor bolts or the Simpson hanger, apply a joist hanger to meet your angle and set joist in place. If it is an oddball angle you may need to have a welding shop make up the brackets to carry the floor joist. Also you can embed the floor joists in the ICF wall prior to pour, you need a temp. support below until after the pour.



Chris Johnson - Pro ICF<br>North of 49
mewldgydUser is Offline
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28 Dec 2007 03:38 PM
these are odd ball angles , installing the joist before the pour may be the way to go, where can I find details on how this is done.
Chris JohnsonUser is Offline
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28 Dec 2007 05:31 PM
You will need an engineer to write the spec for the building department. I have a generic one showing TJI's going into Nudura ICF's. Even though the principal is the same, you need to have one that is site specific to your projects.

Chris Johnson - Pro ICF<br>North of 49
Chris JohnsonUser is Offline
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28 Dec 2007 05:32 PM
or start by asking your ICF distributor if they or the block manufacturer have something.

Chris Johnson - Pro ICF<br>North of 49
alaskabuilderUser is Offline
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28 Dec 2007 08:53 PM

Really decent pictorial/informative article at

LINK

and more on page 2 icf forum titled 'no ledger', a thread from November?

I love open webs for a number of reasons, but they can tend to get tall (the last set was 24"). The engineers often make up for open-web structural drawbacks with very specific and sometimes weird bracing requirements. Preplanning for the ICF wall is all-important, and whether you go with top- or bottom- chord bearing joists, make you plan on anchor locations/attach points for bracing non-bearing portions if required by the joist engineering.

eric monkmanUser is Offline
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28 Dec 2007 10:34 PM
James EggertUser is Offline
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29 Dec 2007 09:12 AM
you can also look into LINK
they have 45 degree skewed brackets, that may be somewhat adjustable to your conditions, however, review closely the attachment required within the tight part of the angle!
Take Care<br>Jim<br><br>Design/Build/Consulting<br>"Not So Big" Design Proponent
irnivekUser is Offline
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31 Dec 2007 12:12 AM
We've used the Simpson hangers to install ledgers 3 ft. or so in length to do radius walls.
Be sure to embed the Simpsons in "pairs" for the start and stop of each short ledger board.

Kevin
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02 Jan 2008 10:32 AM
I use a USP IFH-Series Connectors that are non-ledger connectors, very similar to the picture at the top of this link (LINK).  The problem with these is in your situation is that the joists have to be perpendicular to the ICF.  Where I have had radius walls or angles, my truss designer can design the floor joists to accomodate this requirement.  The non-ledger connectors are much less forgiving than the Simpson Connectors, you better have a good truss template.
Cattail BillUser is Offline
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02 Jan 2008 02:02 PM
I have used the ones that James is refering to on several occasions for 45deg connections they work very well.

We place them where we need to and then have the truss built to fit them
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