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- To: <seaint(--nospam--at)seaint.org>
- Subject: ASCE 31-03
- From: "Michelle Motchos" <mmotchos(--nospam--at)sw-sc.com>
- Date: Tue, 15 Sep 2009 15:02:54 -0400
A potential upcoming
project will require evaluation be ASCE 31-03 at both the Tier 1 and Tier 2
levels. A quick glance of the plans and it would be a "C3" concrete frame
with unreinforced masonry and rigid diaphragms. There are irregularities that I
believe will require the application of the Linear Dynamic Procedure during the
Tier 2. Does anyone know of a good reference for how to model and
analyze this system for the evaluation? ASCE indicates they behave as
a shear wall thru the development of compression struts in the
wall for a period until the wall is destroyed and then it transitions to
frame frame behavior but I am not sure how to capture this behavior
numerically or in a 3d model for the dynamic analysis.