Tear down load-bearing wall, install HEA Beam at 6 meters?

[bivven]

Has it been resolved for you? There were many posts, so I couldn't read through everything. If you haven't received an answer, you can write to me about spännvidd, and any loads if you have, or we can take a look at the drawings you have so I can help you with dimensioning.

 

[Bjorx]

500 SEK excl. VAT is half the price if the beam is 3.5 meters long, so it's a bargain. The question is whether IPE 160 can handle the task. I think you should check that first.

I'm thinking it's over-dimensioned at the neighbor's place. Such a high beam at 3.5 m is very strong. Now steel and wood work differently, but say a 2cm deflection under load in the middle is acceptable. What kind of forces are we talking about? Is it comparable to a glulam beam at 270*66?

 

[justusandersson]

A 3.5-meter long IPE 160 will have a maximum deflection of about 11 mm if subjected to a distributed load of 11 kN/m (equivalent to just over 1100 kg/m). I don't think you should allow for a greater deflection. To assess whether it is reasonable, one needs to know the roof structure and its dimensions as well as the current snow zone. Glulam 66x270 more closely corresponds to IPE 140. I don't think one should guess in a case like this; it's very easy to calculate what is needed.

 

[Bjorx]

A 3.5-meter-long IPE 160 will have a maximum deflection of about 11 mm if it is loaded with a distributed load of 11 kN/m (= just over 1100 kg/m). Larger deflection is not advisable. To assess whether it is reasonable, one must be familiar with the roof construction and its dimensions as well as the current snow zone. Glulam 66x270 corresponds more to IPE 140. I don't think one should guess in a case like this; it's very easy to calculate what's needed.

Well, it's not that easy to calculate. There is no wind access on these low sloped terraced houses from -64, and the drawings show no dimensions of the roof trusses or how closely they are spaced.

 

[justusandersson]

Do you have some kind of drawing?

 

[Bjorx]

You do have some form of drawing, right?

Only floor plans. No measurements, no details.

 

[justusandersson]

Upload a floor plan and complement it with a photo taken outdoors.

 

[Bjorx]

All I have unfortunately.

 

[Bjorx]

Has it been resolved for you? There were many posts, so I didn't feel like reading through everything. If you haven't received a response, you can write to me about the span, and any loads if you have, or we can take a look at the drawings you have, and I can help you with the sizing.

Thanks 🙏 unfortunately, there are no decent drawings. I only have what the neighbor used.

 

[Bjorx]

Post a floor plan and include a photo taken outdoors.

 

[justusandersson]

You can get quite far with that material. Where is the house located?

 

[Bjorx]

You can get quite far with that material. Where is the house located?

You are thinking about the snow load Kristinehamn.
By the way, there is already an opening of 180 cm into the room, and there is no switching there, so an increase of 170 cm cannot be that drastic.

 

[Bjorx]

You can get quite far with that material. Where is the house located?

I broke up a bit more above the existing opening, there's a 20 cm wooden beam there. Will close that opening which is 160 cm.

 

[justusandersson]

The span, i.e., the opening measurement, is crucial. The deflection increases exponentially with the span. There is an extremely large difference between 180 cm and 350 cm!

 

[Bjorx]

The span, i.e., the opening dimension, is crucial. Deflection increases exponentially with the span. There's an extremely big difference between 180 cm and 350 cm!

That's true, but Ipe160 is quite sturdy. What kind of snow load per sqm can we expect here?
I've started removing a couple of studs in the partition wall nearest the exterior wall, and the roof has no support at all now in that section along the entire length of the house, but there was no load at all on the standing studs. The saw doesn't get stuck during cutting, you know. Good sign, but now I'll set up supports and continue.