New floor plan requires demolition of walls

[Tagg]

I have a house built in 1875 but completely renovated in 1980. I don't have all the drawings so I have now drawn up the house as well as I could. I now want to tear down one load-bearing wall (at least I believe it is load-bearing) to be able to make our kitchen significantly larger. Do you see any problems with tearing down this wall and how should I proceed with the calculation of a new beam? Should one use glulam or I/H-beam? The length of the load-bearing wall today is 5.6 meters.

Best regards,
Anders

 

[Enk Projektet]

Is there an upstairs in the house?

 

[Tagg]

Yes, there is an upper floor. Sorry, I forgot to mention it earlier. I am attaching a layout of the upper floor with the floor/ceiling between the floors removed, as well as a layout of the entire house so you can get a sense of the house's entirety.

 

[Enk Projektet]

Ok, removing a 5.6m long load-bearing wall is not easy, I think you can rule out glulam.
What is the ceiling height?
What are the dimensions of the other length?

 

[Tagg]

Thank you for taking the time, Erik.
Which wall do you mean the length of?
Ahh, I'll include most of the measurements, so I don't take too much of your time.

 

[Fixar_Krille]

It is impossible to answer based on this information. It all depends on how the loads are distributed, since the loads from the domes are distributed onto the last full trusses on both sides. But it is not obvious that your wall is load-bearing for that. It may also be possible to relieve the load with a glulam beam on the second floor.

 

[Enk Projektet]

I believe that TS wants to demolish the wall that is 5570mm long and replace it with a glue-laminated or I/H beam.
I quickly checked here to get an idea
http://www.moelven.com/se/Produkter-och-tjanster/Limtra/lagerbalksprogram/
Glue-laminated beams become quite high with such a solution (405 or 450mm)
H-beam will be lower, but someone who can calculate it needs to do that (and can take responsibility for it)
Then, of course, there are other, but slightly more complicated solutions to consider, but I would contact a structural engineer for that.

 

[Tagg]

Yes, that's right, it's the one at 5570 that I want to take down. The idea is to use an H-beam instead of wood. I wonder if they might have already used a steel beam where no support is visible! Attaching a picture of where I mean.

 

[btg308]

If you/you can imagine a post somewhere that can help with the load, I think it will be significantly easier to calculate a reasonable size for the beam.

But the basic tip here is probably to bring in a good structural engineer to see how it looks in reality. The cost of that service should be easy to justify compared to the deductible when the house has to be restored after the upper floor has collapsed. ;-)

 

[Alfredo]

The cost of that service should pay for itself just compared to the deductible when the house needs to be restored after the upper floor has collapsed. ;-)

Then there's also the rumor that it might hurt if an upper floor falls on your head...:wow: