Renovation Tool - Demolishing part of slab and show on demolition plan

[Zendrix]

Hello!

Trying to demolish part of a slab to make way for new construction, happening where part of the slab existed, as in the pictures. How can i go about taking a chunk of the slab and show it as demolition? (actually its 3 slabs cause there are levels that i created with 3 slabs on top of eachother)

Cheers,

Z

[Laszlo Nagy]

There is an ongoing discussion about almost exactly the same topic in another thread:

https://community.graphisoft.com/t5/Documentation/Demolish-only-top-layer-of-slab/td-p/645718

[Zendrix]

Hi Laszlo!

It was me actually who posted that. I know its similar, but in my understanding there are some subtle differences that make it a different case to solve, in my view:

In the other topic we can just make a top layer of ceramic (for example) independent from the slab, assign it to be demolished, and make a copy of the previous layer with another material, lets say wood, and i can have a demolished ceramic floor and a new wood floor working fine on the renovation tool.

In this example i need to subtract part of the slab and flooring layers, (probably through SOE?) and somehow assign the chunk i just subtracted to "demolished", so i can have that chunk showing up on the demotions...

If the process is the same i am sorry to be duplicating it, but i thought it would be a different process, maybe involving SOE.

Cheers,

Z

[David Maudlin]

Zendrix:

What I do is create a copy of the slab, create a hole in the original slab that is assigned to Existing, then edit the copy of the slab to fit the demolished part and assign it to Demolition. This gives me the correct display on the Existing, Demolition and New filters.

You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.

David

[Zendrix]

Hi David,

I see, that will work, even though i would think having overlapped copies wouldn't be ideal.

Still i see one flaw: if you create a hole in the slab marked as "existing", when you go for the "existing" filter the hole will be showing up, right? so you would need to:

1. fill that hole with a piece of slab marked as existing, as well.

2. make a copy of that piece of existing slab and mark it as "demolished".

Am i missing something?

Cheers,

Z

[Laszlo Nagy]

You can also model the demolished part, assign the "To be Demolished" Reno Status to it, use it as an Operator, and perform a Subtraction SEO on the existing Slab. They will be correctly displayed in the various Renovation Filters.

 

[Barry Kelly]

Just thinking out loud here as I haven't tried it (I don't work with renovations).

What about using the opening tool to mark that part of the slab to be demolished.

Existing slab and new opening  - then you can see the portion of the slab to be demolished and in the constructed model you will see the opening.

Barry.

[David Maudlin]

Zendrix:

The slabs shouldn't overlap, the Demo slab fits inside the Existing one. Also check your MVO settings, there is an option for slabs to eliminate the line between slabs in 2D. My suggestion was mainly for getting the 3D model correct, 2D may involve some additional notation depending on your standards.

Thanks for adding your signature.

David

[Zendrix]

Thank you guys for all your inputs. They are are similar but little different approaches, which gives me already enough material to get it going in a workable way.

Cheers!

Z