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Modeling
About Archicad's design tools, element connections, modeling concepts, etc.

Triangle in a Wall Intersection

Luca Ancorati
Contributor

Good morning everyone,
I have been having a problem for a while now with intersections between three walls with different characteristics or thicknesses.
When I intersect three walls creating a T, a triangle is formed at the center of the intersection, as shown in the attached file.

Can someone help me solve the problem?
Thanks

Ps. The material priorities are already correct

Screenshot 2025-03-13 alle 09.25.39.png

4 REPLIES 4
Xandros
Advisor

Good morning

have you tried different junction orders for the walls?

https://help.graphisoft.com/AC/28/int/_AC28_Help/040_ElementsVB/040_ElementsVB-272.htm#XREF_41668_Wa...

 

for example like this

Xandros_0-1741856907196.png

 

ArchiCAD 27 GER / Win10
Intel i9-9900K / 64GB RAM / nVidia GeForce RTX 2080 Ti

Yes I tried, but the result is this

Screenshot 2025-03-13 alle 10.16.13.png

rakurs
Booster

Check to see whether your wall core has the highest building material intersection priority number. The easiest way to do this is to select all the walls that you need in the intersection (all three of them) and then go to Options -> Element Attributes -> Building Materials. Then, disable the folder view and after that sort by "check mark" and all your used Building Materials should be on top and highlighted. Now, check their intersection priorities and try to fiddle with them.

 

Be wary. The actions you do here can have unforeseen consequences on other parts of the model, so be sure to take notes of default intersection priorities if you mess something up.

 

Screenshot 2025-03-13 135734.png

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Good luck and let us now if it's fixed.


ArchiCAD 28 | INT - Cro | Forward | WIN 10 / 11

Thanks for the reply but, unfortunately I have already checked the material priorities several times and the rest of the project has no problem.

This triangle appears only when 3 walls with different material thicknesses are intersected.

I just can't get out of it...

 

Screenshot 2025-03-13 alle 09.25.39.png