In connection with my kitchen renovation/reconstruction, I am going to tear down a wall that might be load-bearing.
The house is a 1 1/2-story villa built in 1975. The wall runs perpendicular to the rafters/floor joists roughly in the middle of the house, and the floor joists rest directly on the wall construction. The wall construction consists of a horizontal 70x70 stud against the floor joists (50x220 beams) supported by 70x70 studs at s600. This suggests that it is load-bearing.
The reason I am uncertain is the construction of the two openings of 2130 and 1780 that already exist in this wall. Here, beneath the horizontal 70x70 stud, there is a 70x115 stud and two 33x115 studs that are freely supported on 70x70 studs at the ends.
In a calculation tool for glued laminated beams, I would need a 66x315 glued laminated beam for my new opening of 3270. Not directly comparable to what is in the existing openings.
I am attaching some sketches to make it a bit clearer.
Can anyone offhand say if the wall is load-bearing or not? If it is load-bearing, can it be generalized as was done in the calculation tool where only the type of building, the span of the floor joists, the placement of the wall, and the width of the opening were considered? It feels like every building should be a bit more unique than that in terms of the loads acting on the load-bearing interior wall.
Thankful for help.
