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walkereng, Consultant
Category: Structural Engineering
Satisfied Customers: 2571
Experience:  Over 30 years of Structural Engineering experience.
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What is the nearest size without going under a 34' A992

Customer Question

What is the nearest size without going under a 34' long A992 steel beam needs to be to support 800lb per square foot when supported with 1' on either end when beams are spaced 4' apart?
Submitted: 2 years ago.
Category: Structural Engineering
Expert:  StructuralEng replied 2 years ago.

What deflection limit do you need?

Customer: replied 2 years ago.
Whatever it takes to appear straight and not collapse into a room below it.
Expert:  StructuralEng replied 2 years ago.

Will it support any ceramic tile?

Customer: replied 2 years ago.
800lb/sqft is the load it would need to support.
Expert:  StructuralEng replied 2 years ago.

But ceramic tile requires smaller deflection than wood.

Customer: replied 2 years ago.
It would be supporting reinforced concrete with a pool on top. 4ft of water rounded up is 252lb/ft^3 so I multiplied by 3 to get 756lb/sqft for safety's sake then rounded up again to account for a cubic foot of concrete and rebar per sqft.