How can I tell what is a load-bearing wall?

[jennebenne]

I live in a newly purchased concrete house from 1954 and am considering taking down 1.5-2 meters of the wall that runs between the kitchen and dining room. (about 80 cm of the wall will remain) The walls in the house are made of thicker concrete/blocks (siporex). Can anyone tell from the following drawings if this wall is load-bearing or not? A more thorough investigation will of course be conducted, but I would appreciate your input!

 

[Tomture61]

Load-bearing walls are usually located across the rafters. Intermediate floors can only support a certain distance, typically 4-4.5 m, after which they need to be supported by load-bearing walls, for example. Glulam can be used to replace load-bearing walls, requiring an engineer to calculate the correct dimensions/execution + building permit.

 

[justusandersson]

The wall is load-bearing. This can be determined from the section drawing. It needs to be replaced by a glulam beam (preferably). You have a lightweight concrete house, not a concrete house. There is a big difference.

 

[BirgitS]

The wall is load-bearing. This can be read from the sectional drawing. It needs to be replaced by a glulam beam (suggestively). You have a lightweight concrete house, not a concrete house. There is a big difference.

What about that wall in the garage that seems to have been removed?
It is also drawn on the sectional drawing.

 

[justusandersson]

I am quite sure that it is a concrete slab over the basement where the reinforcement over the garage runs across the length direction. The removed basement wall was therefore certainly not load-bearing. I never fully trust that sections are consistently drawn.

 

[jennebenne]

The wall is load-bearing. You can tell from the sectional drawing. It needs to be replaced with a glulam beam (preferably). You have a lightweight concrete house, not a concrete house. It's a big difference.

The plan is to install an I-beam since we have one available. Could you enlighten me, how do I deduce that from the sectional drawing?

Or is it simply because it's included in the sectional drawing?

 

[justusandersson]

One must start with the type of house, in this case, a 1½-story frame house. Then one knows that the intermediate floor requires support at about halfway. In a frame house, the floor beams run parallel to the roof trusses. The year of construction often says a lot about the type of house.

 

[jennebenne]

Man måste utgå från hustypen, i det här fallet ett regelhus i 11/2 plan. Då vet man att mellanbjälklaget behöver ett upplag på ca halva sträckan. I ett regelhus ligger bjälklagets bjälkar parallellt med takstolarna. Byggåret säger oftast mycket om hustypen.[/QUOvvvvvvTE]

Okej . Förstår jag dig rätt om vi då säger att husets längd är säg 12 meter att mellanbjälklaget behöver minst 6 meter bärande vägg?