How wide house can be built without interior walls?

[surfarn]

What is the maximum span for the intermediate floor if you want to build a house with an open living room and kitchen across the entire width of the house? Without using steel beams. The idea is that a second floor is to be accommodated above the kitchen and living room.

 

[anaitis]

Wooden beams can be made very long, you don't always need to use steel. It's only a matter of sizing.

If you mean the longest span you can have with just sawn (planed) lumber without using built-up beams, you probably wouldn't get further than about 4 meters. You probably can't find sufficiently high dimensions in the hardware store to achieve longer spans.

 

[byggare henke]

it will be a long narrow house if you want it without steel beams or laminated timber.
do you think beams are so ugly??

 

[surfarn]

it will be a long narrow house if you want it without steel beams or glulam.
do you think it's so ugly with beams??

It might be necessary to have a steel beam in the middle. Saw another thread where this was discussed and that solution looked nice (wasn't visible)

 

[barajag]

How large a span can one have on the intermediate floor if you want to build a house with an open living room and kitchen across the entire width of the house? Without resorting to steel beams. It's worth mentioning that there is intended to be an upper floor above the kitchen and living room.

The Central Station in Stockholm is built of wood, so it is definitely possible to have a long span.

 

[byggare henke]

just me.
yeah but do you have beams there??
I'm not familiar with that building

 

[surfarn]

If you look at the houses on arkitekthus.se, many of them have, in my opinion, very large areas without walls, how have they solved this? Take, for instance, this house, admittedly single-story but with a flat roof http://www.arkitekthus.se/_pdf-ritningar/002-114.pdf. Or this large house http://www.arkitekthus.se/_pdf-ritningar/020- 258.pdf. These are enormous areas that need to be supported without sagging. What techniques are there to solve similar problems? I’ve looked around a bit, and it seems that if you want to use wood, you need to go to enormous dimensions of, for example, glulam and kerto if you want it to span over 5 meters. Then there are steel I-beams. But even these have their limitations. Does anyone have links to calculations of I-beams together with wooden floors?

 

[barajag]

just me.
yes, but do you have beams there??
I don't have an eye on that building

Yes, it's glulam.

Ts's question was if it was possible with a long span, everyone knows which building is being referred to when you use the central station as an example, a bit extreme in itself, but it is possible.

Didn't find a good picture, but here's one if you look closely.

http://byggkatalogen.byggtjanst.se/moelven_toreboda_ab/c102303/

 

[byggare henke]

the surfer
some type of beam. glulam or steel beam

 

[Hemmakatten]

Our house is somewhat similar to the first house (single-story house) that "surfarn" links to. We have no load-bearing interior walls or columns at all, nor any visible beams in the ceiling. Kertobalkar is used in our house, the longest being 11 meters (if I remember correctly, they are 50cm high). A structural engineer was, of course, hired.

 

[surfarn]

Our house is a bit like the first house (the single-story house) that "surfarn" links to. We don't have any load-bearing interior walls or pillars inside at all, nor any visible beams in the ceiling. Kertobalkar is used in our house, the longest being 11 meters (I believe they are 50cm high). Of course, a structural engineer was hired.

Interesting, is it a single-story house with a flat roof or two stories? I'm a bit curious about your house, I've read many of your posts and it would be fun to see some pictures of it.