Sketching a garage and came across the garage door at 5m and the carport at 6.5m needing a beam. Initially considered glulam but it seems to add quite a bit to the height and then I realized I have some steel beams lying around. Free, so to speak.

The beam in question is an H-beam 14x14 with 10mm thickness.
Can I weld two of these together vertically and handle an opening of 6.5m and 5m?

What factors are needed to determine what they can support?
 
You need to know if it is an HEA or an HEB beam as they have different strength values. But you can always calculate using the lower value to be on the safe side. There are also 3 different strength values for the steel itself. I don't have any tables with me at home, otherwise I might be able to calculate it for you.
 
Matti_75 said:
You need to know if it's a HEA or HEB beam as they have different strength values. But you can always calculate based on the lower one, to be on the safe side. There are also 3 different strength values for the steel itself. I don't have any tables with me at home, otherwise, I might be able to calculate it for you.
How do you find that out?

It's about a building that is 8.5x17m with about 3.5m wall height, a roof with a 20-degree roof angle, concrete tiles.

I was looking at a similar support structure today, and he had a 300mm I-beam. I don't know the flange thickness.

Is it an advantage or disadvantage to weld together two beams of this type that I have?
 
Is it on the gable you are going to have the gate?
 
Ola78
Matti_75 said:
You need to know if it is an HEA or an HEB beam as they have different strength values. But you can always calculate using the lower value to be on the safe side. There are also 3 different strength values for the steel itself. I don't have any tables with me at home, otherwise, I might be able to calculate it for you.
Do you know if these tables you have can be found online somewhere? I'm soon going to help someone install a steel beam and it would be good to be able to calculate it.
 
S
as you get completely different properties when you possibly weld together two I/H beams
you may get reduced strength.
 
Spontaneously, I don't believe in this about splicing.
If the roof trusses are to lie on the steel beam, I think it's too weak.
Check with an engineer regarding this so you avoid having problems.
 
Matti_75 said:
Is it on the gable you will have the gate?
Long side. So the trusses will rest on this beam. And I don't mean to splice the length, I plan to take 2 pieces of 14x14 and lay them on top of each other and weld them together to get something more durable.

A small floor plan. To the left will be a large gate about 5m w x 3m h. To the right will be a large opening into the carport. Just over 6.5m opening.

garagemedbalkar.jpg
 
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5 m is long. Can't you imagine a post in the middle?

To calculate the beam, you must first know the loads, i.e.:

1. Roof weight
2. Max snow load
3. Max wind load
4. Safety factor

This should be evident from the drawings from the roof truss manufacturer. Then you can size the beams.
 
I now have most of the measurements clear, so I'm going to try sending them to a truss manufacturer and see what I get back. I'm thinking of A-trusses to get good interior height.
 
Ola78 said:
Do you know if you can find these tables you have online somewhere? I'm going to help someone install a steel beam soon, so it would be good to be able to calculate it.
Bröderna Edstrand (Be-group) has a handbook online called the red handbook (or similar) online. It contains all the necessary data. One must know if it is I, HEA, or HEB beam (measurements are in that catalog).
 
Ola78
jarlen84 said:
Bröderna Edstrand (Be-group) has an online handbook called the red handbook (or similar) online. There is all the data needed. You need to know if it's I, HEA or HEB beam you have (dimensions are in that catalog).
Thanks for the answer jarlen84, I will check it out immediately.
 
Ola78
Thank you so much, now I don't have to search. I've been quite busy, so I haven't had time to check it out since you first suggested it. It's a lot sometimes:cool:
 
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