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ASCE 31-03 part 2
- To: <seaint(--nospam--at)seaint.org>
- Subject: ASCE 31-03 part 2
- From: "Michelle Motchos" <mmotchos(--nospam--at)sw-sc.com>
- Date: Thu, 17 Sep 2009 16:38:04 -0400
I know I must not have properly included the magic word
since I did not get a single response the first time so I'll make sure to
include it in this follow up:
For a C3 building would you typically consider removing
the URM as decreasing the overall lateral capacity of the building or
improving the frame's performance?
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.