topic Re: Slab Thickness Transitions in Modeling

Slab Thickness Transitions

Anonymous — Thu, 25 May 2023 15:55:44 GMT

I am working on a project that has a massive concrete mat foundation and need some help.

For Example:

There are portions of the Slab that are 96" in depth and other Portions that are 78" deep. Between the 2 different depths there is a portion of the slab in which the bottom edge of the slab ramps up to transition between the 2 depths smoothly instead of having a vertical step.

How can I make this portion of the slab in which one the bottom edges is -96" and the oposite edge is -78" and the top of slab at both edges is +0"?

Thanks for any help in advance.

Re: Slab Thickness Transitions

Gerald Hoffman — Fri, 27 Jul 2007 17:10:54 GMT

You can place a roof plane where you want the slope, putting this on a layer which you can hide, I make a special layer for these SEO objects. If you use a section tool through the area you can adjust the elevation of your roof to where you want it and adjust the slope until it is correct. Then use SEO to subtract everything below this roof plane.

Cheers,

Re: Slab Thickness Transitions

Anonymous — Fri, 27 Jul 2007 18:15:05 GMT

Well I have the roof slab in there, but what do you mean by:

Then use SEO to subtract everything below this roof plane.

Re: Slab Thickness Transitions

TomWaltz — Fri, 27 Jul 2007 19:07:54 GMT

SEO are Solid Element Operations, a command in Archicad that allows you to add/subtract shapes from one another.

Re: Slab Thickness Transitions

Anonymous — Fri, 27 Jul 2007 23:01:47 GMT

Thanks, I figured it out. This method is really tough when you have 3 or 4 different slab thickness blending together like i need but I think I can get it to work.

Re: Slab Thickness Transitions

Gerald Hoffman — Fri, 27 Jul 2007 23:21:12 GMT

zaigram wrote:
This method is really tough when you have 3 or 4 different slab thickness blending together like i need ....

You might try using the top surface of a Mesh then as your SEO surrface.

Re: Slab Thickness Transitions

Anonymous — Fri, 27 Jul 2007 23:37:08 GMT

zaigram

You could also use a Comlpex Profile wall with the same cut fill as your slab.

Brian

Re: Slab Thickness Transitions

Anonymous — Tue, 07 Aug 2007 16:30:41 GMT

Gerald wrote:
zaigram wrote:
This method is really tough when you have 3 or 4 different slab thickness blending together like i need ....
You might try using the top surface of a Mesh then as your SEO surrface.

I used this method, a little tedious but the out come was perfect. thanks for the advice.

Re: Slab Thickness Transitions

vfrontiers — Thu, 09 Aug 2007 03:52:30 GMT

Why would you not slip in a little COMPLEX PROFILED wall at this junction... Just the shape of the triangle with the two slabs abutting one another. Should clean up all the way around.