Truss graphics

[ron.sanpedro]

The new structural tools are nice, but seemingly more "diagramatic" than the "presentation" that an Architect would want. I suspect the only time the Architect would use a truss tool is when said trusses will be exposed and we need the client to understand what that looks like. And yet, the truss Revit gives us looks nothing like reality and we are back to a Generic Model and a lot of fussing about it seems. Or is there actually a way to get the truss members to clean up in a way that is at least remotely like the truss will actually be built?

EDIT: Sadly, it looks like you can't even place a truss in a generic model family and use it to trace your cleaned up model. So the workflow is create a truss in Revit, export view to DWG, Import DWG into Generic Model family, trace from there. Hmm.... Not what I had hoped for. ;)
And then there is that end condition. Shouldn't the bearing member (bottom chord in this case) run long while the non bearing member at least runs to the extent of the vertical member?

Thanks,
Gordon

[Scott D Davis]

In Revit Structure, there is the capability to remove the underlying truss pattern (the dashed line framework the members stick to) leaving behind the individual members as structural components. These can then be coped to meet up with each other nicely. In RAC, we can cope structural members now, too. I'm just not sure about removing the truss "pattern" on RAC...I'll need to test when I get a chance.

(Edit: You can remove the Truss System in RAC 2011, but still haven't tried coping)
(Edit 2: Yes, Coping works. You may have to play around with the beam extension parameters and coping distances, but it does work once you remove the System. There is a Contextual modify button when a Truss System is selected to remove it)

[cliff collins]

Gordon,

check this out:

http://www.ideateinc.com/ideas/videos/RevitArch/ideate/tools/RA11%20-%20Tagging%20Links_StrucTools.html

perhaps the section about trusses will help.

cheers

[ron.sanpedro]

My bad. I should have known not to hope that the truss generator would just make a truss that looks right. ;)
I still can't get the non-bearing chord to meet the last vertical right, and I have no clue how I would get a paired member chord to work, like two 2X12s for the chord on either side of 4X4 web members and web members extending to the far side of the chords. Will bang on that tonight a bit.

Thanks,
Gordon