Construction drawing, load-bearing interior walls

[EJHermansson]

I come to a smaller deformation with 90x405 than what your calculation shows. But 90x405 is an impossible dimension in this context. You can replace it with 140x360 or 190x315. It suffices with 90x90 columns from a load-bearing perspective, but the columns should have a width dimension in common with the beam. You need to check with the detailed sections through the foundation slab that the columns are correctly positioned so that there is reinforcement to take up the column loads.

Those are solid beams and columns to build in.

If instead, you consider keeping a column at the end of the wall as it is today and just open up in between, i.e., replace the beam already recessed there today and new columns.

Alternative 3 to place a laminated beam all the way that is dimensioned to handle the opening for 2500mm with a post remaining in the middle. Just to have a beam all the way (Maybe nicer than it ending in the middle of the ceiling). Since the open section today is already load-bearing, it doesn’t need additional stabilization, right?




Is it important to also have laminated posts, or can it be replaced with other timber?

 

[justusandersson]

Option 3 is clearly the best from a constructive viewpoint. The beam should be continuous throughout. 90x225 is a better dimension than 56x270. The central post must be glue-laminated timber.

 

[EJHermansson]

Have received contact and quotes from various structural engineers to create new construction drawings for load transfer. Price range from 8000-21,000 SEK, a mix between time allocations of 8 hours and up to 15 hours to complete this. Does anyone know what a reasonable time estimate is for such a calculation and drawing production?

The difference was quite large between the provided price estimates.