To: "INTERNET:seaint(--nospam--at)seaint.org" <seaint(--nospam--at)seaint.org>
Subject: RE: Foundation design for seismic
From: Mark Gilligan <MarkKGilligan(--nospam--at)compuserve.com>
Date: Thu, 20 May 1999 01:56:50 -0400
What is the R factor for a system where energy is dissipated through uplift
of the foundation?
I believe that this is a fairly common situation which occurs when you have
the minimum dead load required and at the same time when you have some
extra elastic capacity in the lateral system.
Is it appropriate to use the R factor for an eccentrically braced frame
when the frame never yields because there isn't enough dead load to resist
Is anybody familiar with the studies done on foundation uplift?