HEA100 Beam for offsetting

[Alex husbyggare]

generally speaking, beams deflect more than you think. A beam that is only 100mm will sag quite a bit just under its own weight at that length. For large openings and modifications, it is not uncommon with 2-300mm beams that are partially recessed into the ceiling.

I tore down a load-bearing wall and replaced it with a 315x90 glued laminated timber beam last year. But this HEA beam that's going to be used has a floor above it, which without the HEA beam would have a free-hanging length of 4M. It will also be restructured to cc30 and braced with cross bridging. I know that floor already sags, but I still want to be on the safe side with the addition of the HEA beam that will replace the wall in the basement.

And since the HEA beam will be 1M away from the outer wall where the floor is attached, the total weight of the floor is spread over 3 supports.

The only thing I'm really wondering about is whether I should go up to HEA 120 or 140 instead.

I can handle a deflection of a few cm without worrying, as I can correct that.

 

[Alex husbyggare]

Go with a hea140 instead, just as good, so it's good from the start

but thanks for all the tips and help, that's what byggahus.se is for