site elevations

[MikeJarosz]

My building is stuck in the mud!

I'm trying to place my building onto a topo generated from a Civil 3D file. By itself the topo looks right. We are near the seacoast and our top elevation is +10.00'. To start, I want to put my ground floor level at +10.50'.


The project base point elevation is set to 0.00' and the survey base point elevation is set to 10.50'.
The contours use the project base point and read correctly. The high point contour reads +10.00
The floor levels in elevation use the survey base point and read correctly. The ground floor reads 10.50'


Unfortunately, the ground floor in all views appears to be stuck at +0.00 not +10.50, putting my first floor under ground! What am I missing?

http://forums.augi.com/attachment.php?attachmentid=100184&stc=1

[CAtDiva]

A few questions on the Civil 3D import:

1) Did you import contours exported to DWG or a triangulated surface or ???
2) When you imported the file generated by Civil 3D, did you have the option to place it on a level

This is a basic example why I generally maintain a separate site model for my projects. The base information can then be 0'-0" and the linked building model can be placed up or down as necessary and shared coordinates established between the two files. I think we've exchanged notes in other threads (I remember the +10.50'), so it's worth noting that where I am sea level is 6500 feet ± below grade, so it makes sense to set a reasonable datum at a defined elevation. But with my site files, I let sea level be 0'-0" and create a separate level at the elevation that equals first floor finish floor. When I initially bring in my building model at origin to origin, the model ends up at 100'-0" above sea level (since 100'-0" is my typical datum level used for the first floor). After I locate it correctly in plan, I switch to an elevation view and Move the building model up to the true elevation. Then I set shared coordinates and life moves on with little trouble (unless some bozo decides to move the building, then I have to fix it all). Even though the difference between sea level and your finish floor is only 10.50 feet, I'd still do them separate. But that's just my 2 cents.

Back to my initial questions ... I think your topo needs to be moved down by 10.50' feet. I suspect it's base is related to your ground floor level. If the topo has a level associated with it, I would create a "sea level" level and re-assign it. Or just move it down in an elevation view.

[crullier]

Hi there, on the project where the building is, turn on the project survey point and while it is clipped just chance the Z value from 0 to +10.x'
this will mover your project to the correct elevation. Don't move the civil file.