Composite Walls and Slab intersection (intersecting on the slab's edge)

[Wlad222]

Issue with Archicad's Priority Based Connections Feature

I'm experiencing a challenge with Archicad's Priority Based Connections feature, specifically when a wall is positioned at the edge of a slab. Despite ensuring that both the wall and slab are using identical building materials and intersection priorities, the automatic connections are not functioning as anticipated.

Observed Behavior

1. In Image 1, I expected to see the same connection as in Image 3, given that concrete has a higher priority than insulation. However, when the wall is placed on the slab's edge, the outside insulation appears to override the priority connection. Is this behavior intentional?
2. A similar issue is observed in Image 2. When the wall's height is extended, the slab's finish priority seems to be superseded. This occurs only when the wall is positioned precisely on the slab's edge.

Questions and Clarification Needed

1. Can someone explain the rationale behind this behavior?
2. Are there any workarounds available to address this issue?
3. How can I ensure that the wall and slab interact solely based on material priorities, regardless of their relative positioning?

I would greatly appreciate any insights or solutions the community can provide regarding this matter. Thank you in advance for your assistance.

Operating system used: Windows

[Lingwisyer]

I am assuming the grey cross hatch is defined as Core while the cladding is Finish. Core layers will not penetrate Finish layers unless the Reference Line extends beyond that of the intersecting wall / slab. They will either terminate on the intersection with the matching BM on the intersecting wall, as displayed in your 1st intersection, or with the intersecting Core by Intersection Priority if there are none that match. Due to this, in some niche cases, you can squiff the intersection by using zero thickness layers that match those of the intersecting wall. This will often mess up other intersections, hence it being a niche operation.

If you are needing your Core to extend to the face, you will be best off using a Complex Profile column. You can Copy & Paste your 3rd intersection into the CP Editor then clean it up to achieve your Photoshopped intersection.

Ling.