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Fwd: Re: Distribution of Concentrated Load on Concrete Joist

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Bill Polhemus wrote:
> We're designing a concrete joist in the form of a T-Beam "array" to carry
> LARGE concentrated loads on a cargo-ship wharf.
> The load is 350-Kip from outrigger on a loading crane, applied to a 42"
> outrigger pad.
> The joist will have a 10" thick composite deck on top of it.
> I know that this load can be distributed amongst more than one T-Beam, but
> unsure as to how to approach it.  Does anyone have any suggestions,
> backed up with references?
> Thanks much.

If you want to share the load between various Tee-beams, you have to
provide transverse beams with adequate stiffness. This stiffness depends
on the span of the main tee-beams. For the analysis, you could use a
grid model on any computer program.

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Richard Lewis, P.E.
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