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SF and LF

SF and LF

SF and LF

(OP)
Hi everyone

First I am trying to find a quoted reference to use when creating a point load into a distributed load (e.g. a parking garage and the wheels of the vehicle(s)). Also, is there a minimum thickness that the composite concrete can be.

Second I am trying to distinguish between SF (square feet) and LF (linear feet). For example lets say there's a point load of 5k on a concrete slab of area 6SF (2'x3'). What would the LF be to analyze the bending moment of the concrete slab (assuming a one way continuous slab supported at the edges). Could I just use 5k/6SF=0.833k/SF=0.833k/LF? why or why not?

Thanks in advance

eng741

RE: SF and LF

I answered your other question. But this one is a little more daunting. So I'll give you the same advice. These are questions that you should run by your supervisor. These are design choices that require experience to make, not appropriate for a forum question.
For example, if your slab is 100 feet long, there's no need to worry about the load distribution. You could just use the point load. But if it's 10 feet long, you do. And as far as how much width to apply it to, once again, you need to factor in thickness, support conditions and length.

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