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Forums >> Revit Building >> Technical Support >> Building Pad Errors
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Joined: Fri, Dec 4, 2009
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I am trying to create a terraced landscape in a hillside using building pads offset 4' vertically. I would like it to be flat with vertical steps between them. It gives the error that pads can share edges but can't overlap. That is all I'm trying to do, have them share edges! Please help!
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Joined: Mon, Jan 12, 2004
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Pads are temperamental. Especially if you have a lot. The lapping issue is a known bug that can occur if you have a few. Personally I would split surface and drop them using the move command rather than using the pad tool (if it wasn't behaving...)
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Joined: Fri, Dec 4, 2009
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Thanks for the work around! But how do I split surface? I can put a split line in a floor but that option doesn't exist for pads.
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Joined: Fri, Sep 22, 2006
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Mr. Spot is referring to site topo surface you can split is and then move it up and down at will.
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Joined: Thu, Feb 24, 2011
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Mr. Spot,
I've taken your advice and set out to create my roads and sidewalks using the split surface command and then dropping the split surface to a lower lever. However, upon dropping the split portion, I am able to see a gap between the original toposurface and the newly split & dropped surface (see image). Is there a way to fill in that gap so it doesn't look like the split surface is floating below the original toposurface?
Thanks!
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Joined: Tue, May 16, 2006
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Mr Spots advice was for PADS where you would never see this gap.....You have found out why you should not do this for roads and walks...
On flat sites you can do this for parking areas if you add a curb. Obviously sidewals should be higher - not lower and on flat sites, we use slabs for walks.
For sloping lots.... you have a lot more work if you really want to model this grade change rather than just changing the surface material. You can do it by editing your topo before spliiting and adding apprpriate elevations at the split line.
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Joined: Thu, Feb 24, 2011
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Gotcha, I've had moderate success using building pads for roads and sidewalks but I have inevitably run into some problems, so I thought I would try the split surface method.
Just out of curiosity, and speaking as a relative revit beginner, in what sort of instance would splitting and modifying the elevation of the surface be useful?
Edited on: Thu, Feb 2, 2012 at 4:56:16 PM
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Why model the thickness of the pavement? If that is part of your "BIM" neads then maybe I would but in most cases, I only need to show the surface so splitting the topo and applying the correct material is an easy solution for plans and 3D images. If I cut a section, then I just add detail elements to show the pavement thickness.
If you really need to better model site elements, then I would look into the site add-ins.
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This is a useful way to build a nice road. It is a little time consuming but you can see the results.
The first is using ramp the curbs are railings.
Edited on: Fri, Feb 3, 2012 at 11:38:07 AM
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mbsteve,
Thank you for your suggestion. I actually came across another post of yours where you suggested this method, but quite frankly, it made my head spin. It's probably not as difficult as I'm making it out to be but with my limited experience, it's a little more than I want to tackle right now.
Thank you though, I appreciate your help.
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for models where i have been required to quantify curbs and gutters I use floor slabs and slab edges as the curb. I havent had to do that in a while but from what I remember I had to put on the curb and gutter prior to sloping the road(floor slab)
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102687_Revit_Street_Work.pdf