I'm sketching a garage construction with an attic. 6x8 meters. I wouldn't really mind a post in the middle (on both floors) but at the same time, a steel beam isn't a bad idea to potentially use it for a winch or something like that.
In my sketch, I've just guessed some sizes (set the height so that the floor joists could possibly fit into it from each side), and I've built it as a portal. It's quite possible it would be better to skip HEA on the sides and use wood here.
Regarding the other beams, it should match according to the guide from Svenskt Trä (https://www.svenskttra.se/siteassets/5-publikationer/pdfer/svt_lathunden_2018.pdf) but I haven't found anything about the steel beam.
How can I find out what type of steel beam/HEA I would need, and do you have any tips on how it should be attached/suspended?
Data for those who might want to calculate something:
8x6 meters (on the slab), snow zone 2.5, roof slope 27-28 degrees. The upper floor joists are 70x220 cc60 (same for the roof joists but cc1200) and wall studs are 45x145 (cc60 everywhere).
In my sketch, I've just guessed some sizes (set the height so that the floor joists could possibly fit into it from each side), and I've built it as a portal. It's quite possible it would be better to skip HEA on the sides and use wood here.
Regarding the other beams, it should match according to the guide from Svenskt Trä (https://www.svenskttra.se/siteassets/5-publikationer/pdfer/svt_lathunden_2018.pdf) but I haven't found anything about the steel beam.
How can I find out what type of steel beam/HEA I would need, and do you have any tips on how it should be attached/suspended?
Data for those who might want to calculate something:
8x6 meters (on the slab), snow zone 2.5, roof slope 27-28 degrees. The upper floor joists are 70x220 cc60 (same for the roof joists but cc1200) and wall studs are 45x145 (cc60 everywhere).
An HEA beam in the ridge needs to be of type HEA 320 to withstand the large span. It will weigh over 800 kg and cost around 20,000 kr. I'm quite doubtful about that solution. You can place a post directly under the ridge beam in the attic and support it with a cross beam so you avoid posts on the lower level. You will significantly reduce the dimensions and can use glulam, making it much easier to construct. I am also doubtful about the way you have planned the elevated wall life with beams on the sides. It will not be stable. Instead, try increasing the roof pitch and skip side beams and elevated wall life.
Ridge is intended glued-laminated timber in the sketch, 115x495. HEA/steel beam is (for now) only under the floor. In the attic, it's perfectly fine to have a post in the middle to brace. It's okay in the garage too, but if you can kill two birds with one stone by avoiding a post in the middle of the garage floor and have a steel beam for a winch on wheels, then that's a win/win, I think. And it's primarily this cross beam (6 meters) that I'm wondering about in terms of dimension. But I'm, of course, happy to take inputs on the ridge and other solutions as well.J justusandersson said:
I have some new sketches underway where the "portal" of the steel beam is scrapped.
Then I am awaiting these sketches. An HEA beam spm that will carry a telfer does not need to be particularly rough.
1. = (wall studs) 45x145Violina said:
Depends a bit on how much you want to lift with the hoist too
2. = (floor joists and ceiling beams) 70x220
3. = (ridge beam, glulam) 115x495
B = HEA/steel beam I'm not sure which dimension I should be looking at.
Likely to have two standing studs (45x145) underneath instead of one as now.
No super weights, maybe an engine or when you need to support-lift the bike or something. Max 200 kilos can probably be said with certainty.It also depends on how much you want to lift with the hoist