AASHTO's Standard Specifications for Highway Bridges has a foundation
section with charts and equations for mats that involve bi-directional
bending that is quick and easy for small mat foundations loaded at a single
point, and includes solutions for load cases that involve mat uplift. I
don't know what you mean by "large" exactly. For a really big mat with
multiple loads and large column spacings, you really ought to be looking at
a mat-on-elastic-foundation approach, which requires some software.
From: Chanel1096(--nospam--at)aol.com [mailto:Chanel1096(--nospam--at)aol.com]
Sent: Wednesday, March 01, 2000 9:45 AM
Subject: Mat Foundations
Does anyone know a good source for information on the design of large mat
foundations subject to overturning moments?
-Bill King, EIT