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StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 6638
Experience:  Structural Engineer
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I want to know how thick of a steel beam I need 40

Customer Question

Hi I want to know how thick of a steel beam I need for a 40 ft span
JA: OK. Tell me a bit more about what's going on so we can help you best.
Customer: its a building and the span I need is holding up the 3rd fllor
JA: Is there anything else the Structural Engineer should be aware of?
Customer: not really
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Structural Engineer about your situation and then connect you two.
Submitted: 5 months ago.
Category: Structural Engineering
Expert:  StructuralEng replied 5 months ago.
Hello. I can help
Expert:  StructuralEng replied 5 months ago.
What kind of building is it?
What is the framing length on each side of the beam (perpendicular to it)?
What is the existing floor construction?
Customer: replied 5 months ago.
HiSo i'm designing a boat shed which has some angled floors that cross each other like a 'X' but the problem is that I can place a column in the intersecting 'X' SO I would have to have steel columns at some point on the '/' and '\' . but the span is about 45 each where I want to place it(Max). and this part is holding up the 3rd floor which is a erg training room / multi purpose room. Currently this is a student project so the load weights don't have to be super accurate. It should be thought to the minimum for floor to ceiling room height.
Expert:  StructuralEng replied 5 months ago.
Do you have a framing plan you can share so I can see exactly what is going on?
Customer: replied 5 months ago.
So i'm working on my plans but here are some image
Customer: replied 5 months ago.
So just a little better... The Red Columns are on the some line and the orange is the beam and the purple columns are aligned with the magenta Beam but I can't place a column where they meet. Is this structure wise possible /?
Customer: replied 5 months ago.
so here are some other view angle
Expert:  StructuralEng replied 5 months ago.
So the floors are flat and at a single elevation, but the beams supporting them make an X in plan, correct? The beams and floors are not sloping?
Customer: replied 5 months ago.
Yes they are not sloping.
Expert:  StructuralEng replied 5 months ago.
I will need to know quite a bit more about the structure. I have a lot of questions I will ask tomorrow evening.

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