composite walls / composite slabs intersection problem

[Anonymous]

Hi all,

There is same nonsense object behavior continues in AC 14 unfortunately.
Why don't they fix this?
I read something about this problem on forum. There are some ways to do it correctly. (SEO, complex profiles... etc). But should we play like this?

When you're creating the slab you can select the "core" but it doesn't work in section correctly. Also intersections are same.

There MUST be a fix or improvement! In my opinion this is a big shame of AC.

[Erika Epstein]

This is a long outstanding wish.

[Anonymous]

Unfortunately it is.

So what should we do to tell them it must be fixed as soon as possible?

It is the simple drawing mistake which an architecture student learns it in 1st year

Graphisoft team! i love you ! pleeeeeeeeease fix it. ^_^

->And add "composite beams" property for drawing right concrete structural systems. ( for adding to beam plasters )

[Anonymous]

In the mean time, the solution is simple - extend the wall up until it hits the underside of the core in the slab, then use SEO to subtract the wall away from the slab.

Rather than just doing this one by one, it's even quicker to just model all the walls, select all of them at once, then SEO with them at the same time.

This should also display correctly if you use the partial structure display function.

[Anonymous]

This is not the correct way to showing the right drawing. There remains slab's horizontal line at the intersection after SEO. And working with this technique is very exhausting.
This may be correct for brick wall/concrete slab intersection but not true for shear wall/concrete slab intersection.

[Anonymous]

Can you show an example of the correct way? I don't understand what you mean.

Edited to add -

There remains slab's horizontal line at the intersection after SEO

Actually I see what you mean about this. I don't know how to overcome this shortcoming other than by using a complex profile with the concrete core extended up by a tiny amount.

I have to agree that this sort of detailing needs improving in ArchiCAD. You often get situations like this where things don't *quite* work as they should, both in section and plan.

[Anonymous]

This is what i mean. True representation is drawn in detail window.

[Durval]

I'm an old user who was away from ArchiCAD world for some time. Now I am gradually returning, hoping that this issue would have been fixed by now.
Apparently, my old solution still applies.
I created the attached parametric 2D GDL object (AC9) to be placed above wall/slab/beam intersections in ArchiCAD sections.
It's specially useful for masonry walls and concrete slab buildings, but it can be adapted. It draws a 2d concrete beam inside the wall, correctly merging with slabs, if needed (then you don't necessarily need to create them in 3D, since they are totally inside the walls).
It has parameters for pens, fills, lines, thicknesses of core and one layer of covering for each element and each side (internal & external). If you know some GDL coding, it's not hard to add more layers if you need. The object could be further developed to have a parametric number of layers per element, instead of the current maximum of 3 layers.
You can turn on and off every element: internal/external slab, upper floor/lower floor walls, and beam. The script then manages the correct lines and fills to be showed.
These parameters are organized in pop-up menus containing the default values that I use most.
You can edit them if you modify the Master and Parameters scripts. Instructions for changing variables are provided in comments, but they are written in portuguese. You should use the same settings you have in your composite walls and slabs.
Once you have your defaults set, it is quite fast to spread it around in sections.
But my "Arremate_VLP" do not solve another problem related to these intersections: the 3D.
If you have walls with 2 different materials placed in the same slab, the vertical edges of slabs will match only one material, and the external perspectives will show a stripe dividing stories. The problem also occurs if you have holes in the slab and the internal material of your walls does not match the external.

[Anonymous]

Thank you Durval,

Your method works in Archicad for 2D in simple sections. If you have a big section with complex geometries you can't use your GSM file too.
And when you export your project with another CAD application like Autocad the problem continues.

Still hope that Graphisoft Team will solve this problem...

Is there any Graphisoft Team member hearing me?

[Anonymous]

silence ... will be a storm?