Help with beam calculation

[Hemmasmurfen]

Hello.

First thread, so please bear with me

We are planning to tear down a load-bearing wall between the kitchen/hallway and the living room to open up the space. The wall is load-bearing and needs to be replaced with a beam. I've concluded that glulam will be too tall, so we'll be using a steel beam. I would like help calculating the size of the beam and whether it's best to use an HEA or HEB beam. The idea is that the beam will rest on two standing wooden posts. We can assume the beam needs to be 4.5 meters long to have some margin. If the beam needs to be excessively tall, there is an option to place a post in the middle, but we would like to avoid that if possible.

I'm attaching various drawings, and if anything is missing, just let me know.
We live in snow zone 2 (Uppsala), and according to another drawing, the roof angle is 30 degrees, and the roof consists of concrete tiles.

Thanks in advance

 

[Hemmasmurfen]

Unfortunately, I can't manage the other drawing files, but I'm working on it.

 

[Hemmasmurfen]

Now I believe it should be resolved. I hope the resolution is sufficient.

 

[BirgitS]

Currently, there is a shortage of knowledgeable structural engineers in the forum, so you should hire one. That way, you also get good documentation for the construction notification that needs to be sent to the municipality.

 

[Hemmasmurfen]

Thank you for the response, I'll take it from here.

 

[Lennart12]

Hi, assuming that it is the wall on the second floor directly under the roof truss. I don't think the wall is load-bearing for the roof truss. The roof truss has reasonable dimensions to span 10 m without intermediate support. There are tables as shown below on TräGuiden under 4.2.2 Roof Truss Dimensions. But it probably doesn't hurt to take it further, I would have wanted to do some check calculations to be sure.

 

[Hemmasmurfen]

Hi, assuming it's the wall on the second floor directly under the roof truss. I don't think the wall is load-bearing for the roof truss. The roof truss has reasonable dimensions to span 10 m without intermediate support. There are tables as below in the Wood Guide under 4.2.2 Truss Dimensions. But it probably doesn't hurt to take it further, would like to run some control calculations to be sure.

[image]

Hi.

It's the wall on the first floor (ground floor).

// Oskar