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StructuralEng, Consultant
Category: Structural Engineering
Satisfied Customers: 6941
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: 12 months ago.
Category: Structural Engineering
Expert:  StructuralEng replied 12 months ago.
Hello. I can help
Expert:  StructuralEng replied 12 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 12 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 12 months ago.
Do you have a framing plan you can share so I can see exactly what is going on?
Customer: replied 12 months ago.
So i'm working on my plans but here are some image
Customer: replied 12 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 12 months ago.
so here are some other view angle
Expert:  StructuralEng replied 12 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 12 months ago.
Yes they are not sloping.
Expert:  StructuralEng replied 12 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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