Structural Engineering: RE: Westergaard Formula for Point Loads on One-Way Slab

Not an answer but it's handy to keep in mind that truck tire pressures
are on the order of 60 to 100 psi. Convenient for figuring loaded areas
from weights.

-----Original Message-----
From: Jeremy White [mailto:admin@structuralae.com]
Sent: Friday, May 01, 2009 7:06 AM
To: seaint@seaint.org
Subject: Westergaard Formula for Point Loads on One-Way Slab

Does anyone happen to have a pdf of an explanation of the Westergaard
formula for the effective width of point loads on one-way slabs? I am
looking for a credible resource for finding the effective width of a
one-way slab for point loads. I read in the Eng-Tips Forum that the
AASHTO equations are adapted from the Westergaard formula for
application to truck loading. If I am applying the code prescribed
point loads to a slab on a 4.5 in x 4.5 in square area I think the
AASHTO equations are too liberal. The contact area for a truck tire
is much larger than the 4.5x4.5 contact area.

Thanks,
Jeremy

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Friday, May 1, 2009

RE: Westergaard Formula for Point Loads on One-Way Slab