Garage made of steel profiles and sandwich panels - calculations.

Hi, I am planning to build a 5x7m garage with something like a mezzanine, with the rest I am enclosing a sketch:
garaz.jpg Download (327.89 kB) garaz1.jpg Download (260.11 kB)
And I wonder if I should go for a sandwich panel instead of classic blocks, bricks, etc. I want, among other things, that there are no hornets or other locusts anywhere, and it seems to me that in the case of sandwich panels, joints, etc., are so tight that it should be successful, and with boards or blocks it can be different. Well, the time to erect something from the boards is a few days, not counting the foundation, and bricklaying, insulation, plastering of classic buildings six months in my edition
The problem, however, is that all ready-made projects on the net are made in 90% on porotherm - you know, the architect does not have to make any effort because a skyscraper can be placed on such a 25 cm wall. I even asked in 3 places how much to do the project, but they wrote to me that they didn't, so I assume that if I went to a specialist with it, he would cut me like a lock of Steven Segal's hair.
So the question is, is anyone able to tell me what profiles to make such a garage from?
The weight of a square meter of the sandwich panel is about 10-15 kg and on this mezzanine in gusts I would like to load, say, 2 tons. And on the purple beam, I would like to have an I-section for extracting the engine, e.g.
Anyone can help or should I fall on a tree?

Say what plate you want to make the garage from. Plate with a polyurethane core - very durable and quite expensive, a plate with a polystyrene core - light and the cheapest, a plate with a hard glass wool core - hard, fire resistant and the most expensive. Then you need to choose the thickness of the plates 50, 75, 100, 150, 200, 250 mm. Two years ago, we were building a garage with display windows and a reinforced 3m x 7m checker plate floor, 4mm steel skeleton, cost about 30,000.

I will let go of the polystyrene because it is not so cheaper, when you look at the heat transfer coefficient, it is the same as polyurethane and I did not even ask about wool and I think it is about mineral wool? I am not going to hang out there in winter, so in my opinion, even a 40mm PIR on the walls and ceiling will satisfy me.

We use mineral wool boards where there are chimney passages, boiler rooms meet the health and safety requirements, construction supervision inspectors always check such rooms. It is important whether you will attach something to the walls - hang something? The entire load-bearing structure must be welded. On the purple beam, add this I-section as it is to be attached. With a width of 5m, additional reinforcements or trusses must be used. On the sides of the garage in the middle you need to strengthen the structures. Check what is the cost of steel in your area and whether they will bend you according to the design. Designing and building from scratch is not simple and cheap.

I don't plan to hang anything on the walls. In fact, I was thinking that the purple beam would be just an I-section in its entirety? In my company, I have seen winches on such frames that are about 10 meters long and cranes with a load of 500 kg - how would I install a 180mm I-section in this place, for example, it would not be able to withstand?
I have steel for about PLN 3.5 gross per kilogram. Bending? Where would it be bent?
And when it comes to strengthening the sides, it can extend the orange beam to the very top and make such reinforcements for the purple and yellow ones?

the sandwich panel is cheap by the meter, but the accessories already cost a bit.
But I would go to aerated concrete + ready-made trusses from the net. Almost flat, single-pitched roof

If you stick to the slab ... think about a mono-pitched roof. It will be cheaper and tighter.

Siporex will be the cheapest and the best solution. It is full inside, you can drill in it and put a lot of weight on it compared to the board.
Roof - prefabricated trusses.

But the aerated concrete needs to be plastered and finished, and it will not be cheaper and, above all, will take a lot of time. I want to do it myself, with the help of my family. I'm not talking about digging a foundation or pouring concrete because it's too hard work for me to tire
Well, a garage made of a record, if I would like to dismantle and move it; P

aerated concrete is put straight. You can even use foam. You don't even have to warm it - and you can always do it later. You can also just paint it or plaster it from a homemade aggregate.
Ready trusses from the net can even be removed for 120 PLN and a plate for it.
The foundation - it can be made of plates - is easy to make.

Added after 1 [minutes]:

the most important question .... what amounts are you thinking about in total for construction?

And you have not thought to make 8 m 14x14 logs from wood, you can easily buy it in a sawmill.

a te belki ... what for?

Sometimes it is worth going to a scrap yard, they have sections in unusual dimensions that no one wants - a very affordable price for a specific steel.

Sure, aerated concrete is placed straight and you can use foam, but it's still a lot of work and I can't imagine leaving it unplastered. It would look tragic even for my low sense of aesthetics. And if I didn't plaster it right away, then I don't know if I would like it because the environment is rather humid and it would never dry out.
Amounts I don't know, I think 15,000-20,000 I can do it.

Well, and these 8m 14x14 beams for what? :P

Gentlemen, I am not worried about the purchase of raw materials, I have my channels as if I am talking about durability

Sandwich panel is mainly used for insulation, filling the space between, for example, pillars. Using it as, for example, a load-bearing wall is an own homicide.
Either you brick or weld - or screw the metal structure together. I don't see any other way out.

The plate is self-supporting. Depending on the type, there are different sizes of "buildings" that can be erected without construction.

jalop wrote:

Sandwich panel is mainly used for insulation, filling the space between, for example, pillars. Using it as, for example, a load-bearing wall is an own homicide.
Either you brick or weld - or screw the metal structure together. I don't see any other way out.

After all, I say from the very beginning that I want to make a steel structure and screw the plates to it. The boards are not only for insulation, because they build halls 20 meters up.

Art.B wrote:

Doominus wrote:

The board of appropriate thickness is self-supporting. Depending on the type, there are different sizes of "buildings" that can be erected without construction.

I agree in 100%. In the case of a garage, with a single-pitched roof, the structure will be completely self-supporting, with a gable roof, you only need to tension the walls at the top with anything, even with 10mm rods, so that it does not push them apart. Folding the boards on the foam and donit or bolt the sheet metal workings. In the cold stores there are self-supporting chambers made of sandwich panels without a skeleton, over 12m high, where a flat roof with a span of several meters is suspended on 10-12mm threaded rods to the hall roof structure. It's just fun walking in the attic of the hall, bending under your feet.

In my life I have never seen a hall made of a sandwich panel without a structure and I would not want to enter such a hall in my life After all, the plate is not connected with the plate, but it is screwed to the structure. How would you like to join the two tiles in the corner of the building? And how to anchor them?

Let's not produce legends.
The building must have a steel or wooden structure and the boards are screwed to it, there is no other option. And if I am wrong, I am asking for a specific example of such a building, then I will go and see - although I will not enter it

A house with a gable roof made of Obornicka slabs? It sounds interesting. Are you able to show photos?

I have seen separate chambers in buildings made of panels, but never in the way you say
I would not risk building my garage without at least four beams in the corners, maybe it is possible, but I would not want to.
And a house with a slab roof:
http://master-dach.pl/wp-content/uploads/2016/10/p%C5%82yta-wwienowa.jpg
I think that you have seen such a thing more than once, it does not stand out with anything and it did not catch your eye

When I had an annex to do it, I was looking for info about these albums.
It turned out that a self-supporting structure could be erected 6x6m.

And I called today a company that builds such constructions and sells CDs and the guy said that he would not have built something like this without a skeleton. So I come back to the main thread, will someone tell me with a clear conscience what profiles to make the structure from?

Roof like in the first post?

This is how I want a gable, because a cowshed will look like a cowshed cut in half too high a building for one slope in my aesthetic opinion. As for the angle of the roof, I do not insist on anything, I would like to have two meters left on this mezzanine to stand there freely and the regulations say a maximum of 5m upwards and only this limits me.

But I think I will come back to the concept of a wooden structure
For now, I have such a nuisance, are there any hinges for the garage door that would be hidden inside and the door would still open to the outside?

That's what I mean.

I would have made of steel. For the main structure, I would use an I-section 80 or 100. I-section also for the roof spans and you do not want to make a truss, because with this span it will be unnecessary. For the battens, a 40x60 profile with a 2mm wall is more than enough, and you can even think of a smaller one.

How was the construction successful, because I would like to put up something similar, i.e. a steel structure, 5x7m, flat roof, all in a slab.

Mr. moderator - how can I write with Polish characters if I don't have a system with Polish characters at hand?

Polish letters are under engineering symbols.

michallodz wrote:

And I called today a company that builds such constructions and sells CDs and the guy said that he would not have built something like this without a skeleton. So I come back to the main thread, will someone tell me with a clear conscience what profiles to make the structure from?

This information can be found in the technical documentation that is available free of charge by most manufacturers. Because self-supporting cooling cabins made of sandwich panels can be built under a roof in an existing hall, but never as stand-alone facilities. They must have the roof structure calculated for the snow load, and the wall surfaces with the wind load.
All data for these calculations are provided by manufacturers, usually the spacing between wall or roof profiles, the type of these profiles, their lengths, etc., etc. There is one condition, you have to buy sandwich panels from them, cut to size.
In the past, all data was given in advertising materials, but I had the last contact with this industry several years ago. Perhaps, however, it is worth visiting the website of a manufacturer of sandwich panels?

Producers on the website do not write anything, not all of them even have a paid design service - some of them simply sell and not without restrictions such as the minimum quantity, not every color, etc.
As for my construction, it has not been created so far, because we live in PL, where a flail and a loser from the municipal office sets up a spatial development plan for himself and you, citizen, have to live with it. There is no appeal form or anything you can just apply to change it, but it takes up to 5 years and they don't have to change it at all
If something changes, I will let you know

michallodz wrote:

If something changes, I will let you know

What's your problem with the construction?