Hi, another beam calculation question!
We have a single-family house from 1959, 1½ stories with a basement. The basement has concrete in the floor, walls, and ceiling, and the attic is furnished.
We are going to remove the wall between the kitchen and dining room on the mid-level, about 3 meters. The house has an extension so the wall goes from the old exterior wall to the chimney, across the rafters. There are currently 5 posts from the concrete in the floor directly to each individual floor joist. The plan is to replace them with a beam.
Our builder has been very busy, so any tips are greatly appreciated!
/Per
We have a single-family house from 1959, 1½ stories with a basement. The basement has concrete in the floor, walls, and ceiling, and the attic is furnished.
We are going to remove the wall between the kitchen and dining room on the mid-level, about 3 meters. The house has an extension so the wall goes from the old exterior wall to the chimney, across the rafters. There are currently 5 posts from the concrete in the floor directly to each individual floor joist. The plan is to replace them with a beam.
Our builder has been very busy, so any tips are greatly appreciated!
/Per
Welcome to the forum!
Do you have no more construction drawings for the house, e.g., a construction drawing?
They might be available at the municipality's building office if you don't have them yourself.
Experts usually ask about the snow zone as well.
Do you have no more construction drawings for the house, e.g., a construction drawing?
They might be available at the municipality's building office if you don't have them yourself.
Experts usually ask about the snow zone as well.
A glulam beam of approximately 90x315 mm on two columns, also made of glulam, 90x90 mm, should suffice. Each column represents a point load on the concrete of about 30 kN. Since the columns, according to the sectional drawing, do not sit directly above the basement load-bearing wall, someone with construction expertise should check that the concrete slab can handle these point loads. I do not know what requirements Finnish authorities have for calculation documentation.
Thank you for your response, yes the foundation wall in the basement is not directly under this wall for some strange reason. The basement wall runs along the "other corner" of the chimney. It is indeed tricky how much the concrete can withstand in point load because of this.
What the concrete can withstand depends on its dimensions and reinforcement as well as the distance from the support. I think it works, but it needs to be checked.
