ᐅ Reinforced concrete columns at the corners of the bay window

Hello,

On the ground floor, the structural engineer has planned reinforced concrete columns in the (inner) corners of the bay window. Both the energy consultant and the shell builder have never seen anything like this before. Is this necessary? Has anyone else encountered this?

We don’t like the mixing of materials (aerated concrete versus reinforced concrete with insulation).

Thank you in advance!

Could it be that the columns are structurally insufficient, meaning not able to withstand compressive forces? You should ask the structural engineer why these supports are necessary, as they should know.

Is this still about the house from this https://www.hausbau-forum.de/threads/efh-grundriss-mit-keller-version-2.15596/?

Could the side walls of the dormer gable possibly end there (the drawing is not very clear)?

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https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

It's still the house, at least the exterior walls still fit.

The reinforced concrete columns are planned for the inner corners, not the outer ones. Unfortunately, I can't upload a picture right now, but it may be provided later.

I meant this:

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https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/

We also have a bay window, and in our case, an internal support was cast from concrete. There is a steel beam resting in the ground floor ceiling that connects the living room wall with the kitchen. The steel beam was necessary for structural reasons.

Best regards
Sabine