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walkereng
walkereng, Consultant
Category: Structural Engineering
Satisfied Customers: 2468
Experience:  Over 30 years of Structural Engineering experience.
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I'm want to remove 6 support posts in my shop that support

Customer Question

I'm want to remove 6 support posts in my shop that support the up stairs floor, roof etc. The shop is 40' x 70' and the up stairs is 16'x 70', centered. The up stairs has 2 existing I Beams spanning 70 ft with 2x12 floor joists between them.The six posts and exterior walls support the entire up stairs and roof. I would like to replace posts with Steel I beams that would run perpendicular to existing Ibeams with a clear span of 40 Ft. So when completed, the up stairs will be supported by 3 steel beams and the exterior walls of the shop. The proposed Ibeams will only be loaded in the middle 16 ft and can only have the top flange lateral support at the ends and at existing I beams that support the upper level. The proposed beams will be space with one beam in the middle and the other two will be about 17 ft from exterior walls, This up stairs is stick framed with interior walls and sheet rocked.
I need some help on sizing these three proposed I beams please
Submitted: 1 year ago.
Category: Structural Engineering
Expert:  StructuralEng replied 1 year ago.

Hello

Customer: replied 1 year ago.
Hello
Customer: replied 1 year ago.
Can you under stand what I want to do
Customer: replied 1 year ago.
I found some w16 x45 that could save some big money, would this work
Expert:  StructuralEng replied 1 year ago.

Yes. Can I get back to you in a couple hours?

Customer: replied 1 year ago.
You bet
Expert:  StructuralEng replied 1 year ago.

I'm trying to visualize your description, but it's not perfectly clear. Can you please post a sketch of your framing so I can give you the best answer possible?

Expert:  StructuralEng replied 1 year ago.

What is the city and state so I can look at snow loading?

Customer: replied 1 year ago.
City and state
Dolores, Colorado
Customer: replied 1 year ago.
Exterior pic
Customer: replied 1 year ago.
Interior pic , see posts supporting upper level , see existing I beams on each side of upper level
Customer: replied 1 year ago.
With pics and this sketch, hoping it makes it clear
Customer: replied 1 year ago.
One more sketch , let me know if it is clear to you now
Customer: replied 1 year ago.
Pic showing posts to be removed , exterior wall
Customer: replied 1 year ago.
Pic showing exterior wall with existing beam resting in existing beam pocket , this is the se on both exterior walls
Expert:  StructuralEng replied 1 year ago.

Thank you for the additional information. I'm looking through it now

Customer: replied 1 year ago.
when do you think you will have a answer for me
Expert:  StructuralEng replied 1 year ago.

Hello. I posted a bunch of information a couple days ago. I see it didn't take and I will have to repost it.

Customer: replied 1 year ago.
Can you please repost the I beam sizing information, I would like to move forward with this project, I need to order steel by friday morning
Customer: replied 1 year ago.
Are you done, are you going to respond back at all

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