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Forums >> Revit Building >> Tips & Tricks >> topography, building, levels organization and method of work

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Thu, Jan 12, 2017 at 1:58:11 PM | topography, building, levels organization and method of work

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ramikhedira


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Hello,I am working for the first time with topography in revit and i am a bit lost in how to organize all the levels because i sarted by creating a pad under the houses that i would later build but they appear to be very deep into the ground and not at the topo surface...So i am lost in the way i should work on it, if anyone can help me out by telling me how they usually work when they have a topography, I would really appreciate it!Thanks a lot in advance.

 

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Thu, Jan 12, 2017 at 2:23:53 PM | topography, building, levels organization and method of work

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Beaucoupnice


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Joined: Mon, Nov 19, 2007
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Here is what I do.

1) Figure our your ground floor level first and set a level to it based on RL levels.

1) Create toposurface based on survey levels provided by surveyor. Either import DWG & use 3d points to create toposurface or pick each point manually or use cvs file (most accurate) Ensure it is correct in the XYZ. That is in plan the Northing & Easting Coordinates should match the site and the vertical point levels should match those onsite. Make a copy of this and place it separately for future reference.2) Work out your floor level and place in your floor slab with correct slab thickness. If you have a structural engineer doing their model, they will later model up the structural part of the slab and when it is imported into your model, you will delete the structural part of your slab and leave the finishes layer/s on top.

3) Place a pad directly below the floor slab. Make it very thin. I use 2mm. It serves no purpose other than flattening out the toposurface below the floor slab. You could also edit the toposurface points below the slab and make them all the same level as below the slab to drop the surface.

4) From an external wall to ground detail sketch, determine what your external ground ( earth levels ) are doing directly outside your external wall face. (default is typically 150mm below internal finished floor level) Edit toposurface all around the perimeter and edit each point and add more points to ensure the external levels flow properly. You may need to add higher points at external doorways to ensure a flush entrance.If your levels are wrong read up on the following:- Specify Coordinates at a point.

- Relocate Project.


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Thu, Jan 12, 2017 at 4:15:27 PM | topography, building, levels organization and method of work

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ramikhedira


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Hello, I have a pretty basic level in revit so i have difficulties understanding all the steps...So what do you mean in the first step because it's a village i am modeling and there are a lot of houses so i am not sure what would be the ground floor as it isn't just one building (they are at different elevations as some are higher up the hill than others?And i have the topography already done now my aim is to reproduce the village there. Thank you


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Sat, Jan 14, 2017 at 11:49:37 AM | topography, building, levels organization and method of work

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WWHub


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Ah ... more information.

 

A village?   Your individual buildings should all be in their own file.  Then you also need a seperate site file.  This site file would have all of your structures linked in (preferrably, each in its own workset.).  The complicated part here is the location of your buildings. 

 

In each building file, you would link in the site file so you can see that.   The hardest problem for you will be learning how to locate your buildings in relation to the site.  Not an easy task for even more experienced users.  Once your structure is located correctly in relation to the site and this location is transfered back to the sit, you would create pads for the buildings and do your grading in the site file.

 

Now for a combined view, you woul open your site and turn on all the linked building files.


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