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Forums >> Revit Building >> Technical Support >> floor joist layout
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Joined: Tue, Jun 29, 2004
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I've been reading some posts here about this and it looks like I'm going to strike out on this but I'll give it a shot. I'm laying out a floor joist system, wood TJI's 16" oc, I'm at structural>beam system. It seems that Revit will only snap 2 3/8" from the core face and it appears that this is a wishlist fix. Anyone got a good, quick workaround? Second, is there a way to start my 16" OC layout at a certain wall? I'm not looking for joist direction though.Align was the best I could come up with. And third, is there a reason why no rim boards show up? Do I have to manually place these? Thanks
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Joined: Mon, Jan 12, 2004
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You can edit individual beams of a beam system by unpinning them... Is this what your after? Also check the family category and parameters of the beam to ensure the appropriate structural material is selected is this controls how the beams connect to other structural elements such as walls.
HTH.
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Sorry, I do know about the pins. It's a fix, but with 60 joists, that's alot of individual moving. I guess I was more curious as to why in structural mode, it only snaps to the core center of the wall. The structural members are the standard ones that came with Revit. I'm trying to figure a way to extend the joists in the family editor, but there will still be a difference in length between the 2x4 walls and 2x6 walls. Not good there either. So far, I've got a reference plane to extend the joists to. It works, but it still seems kinda slow. And I'm installing individual beams for the rim joists which is realy slow. Just wondering if there are any better ways.
Post edited on 2005-12-21 21:01:55
Post edited on 2005-12-21 21:02:31
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Read what i wrote about checking the structural material of the beam. If you set this to wood for instance all the structural beams will then attach to the face of the wall as opposed to an inch off it. Also make sure your wall properties don't intersect the line of the beams if they don't need to.
Say for instance you have a wall that has been drawn on a certain level and offset say 500mm from its base. If the beams pass through this 500mm zone they will still attach to the wall as, as far as revit is concerned the wall is still there. The solution in this case would be to make the wall offset from a level above this as opposed to drawing it on the base level.
HTH.
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"I'm installing individual beams for the rim joists which is realy slow. Just wondering if there are any better ways."
I gave up on using structural beams for rim joists and just make them with the wall tool. Way easier and the corner joins are a snap.
On my structural joists I have added extension parameters to each end to control the connection location. Once I adjust one joist I use the match tool to quickly change the rest in the same string.
I saw another post a while back where a workaround (this one really defeats true modeling) was to pick the floor system up a tad from the wall plate line so the system does not recognize the wall and get all steel connection crazy. I plan on giving this method a test drive next time I'm there.
Structural wood connections for some reason (resies to the back seat) does not carry much priority with Revit. I have been told they are aware of the issues and are working on it. I can only hope to see it up to par in the near future. The wood framing issues do not stop with the floors. Roof rafters, hips, valleys and ridge beams are in the same condition - "NO" - they're worse.
I know there are programs way cheaper out there that cater to residential construction, but I'm not going to miss out on what Revit has to offer and I'm still confident the wood framing will come.
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Every time I hear how someone does something different, like the wall tool for rim joists, I sit back and say, WHOA! Man this program is great. I'm just starting out, I did all the tutorials and started doing my own house plans and trying to figure things out along the way. I can't stop. I'm addicted. I have SoftPlan and it can't hold a candle to Revit. Mr. Spot and Rhytmick, thanks for your help, you don't know how much I appreciate it. Thanks and Merry Cristmas.
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