Forums >> Revit Building >> Technical Support >> Can you tell a building pad to cut multiple toposurfaces? Revit 2014

thinktank

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Joined: Sun, Jun 15, 2008
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Hi, 

I often use 2 toposurfaces to show both the natural ground level and the surveyed ground levels. I would like to then use a building pad to cut in the basement, but when I add the pad it is only cutting through one of the toposurfaces (the one I modelled first). Is there a way to make a building pad cut through multiple toposurfaces? Revit Architecture 2014

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WWHub

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It will cut only the one surface.

Not sure what the difference would be between "... natural ground level and the surveyed ground levels..."  Seems to me they are the same thing.  Or do you mean proposed instead of one of these?  If so, then you should be using graded regions.

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thinktank

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The Natural Ground Levels are the levels that council have recorded  - also called the Original Ground Levels - what the ground was doing before anyone built on it. We have to measure building height from these levels. But then the Surveyed Ground Levels are what the site looks like now, often filling has taken place, and we need the surveyed ground levels to work out the site access, driveway grades, floor levels etc. Just would be handy if the building pad could cut multiple toposurfaces. 

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ronmalit

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Joined: Thu, Mar 29, 2012
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your natural ground level, if cut, is already your new surveyed ground levels. so why would you show natural ground level with cut?

if you really must do this way:

what i normally do is copy the topo side by side, and having a reference line as my copy basepoint, i now copy all building pad.

this way i will have multiple topo with same building pad.

in the attached photo. i have one revit file, 3 exactly same topo, and copies of building pad in different formation level.

hope this gives u idea.

Attached Images

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working with Pads and toposurfaces

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