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RE: Seismic - Isolating CMU-Captivity Problems

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On the same line of thought.  Is there any known detail to deal with the
captivity column problem.  Instead of trying to deal with modeling the CMU
wall can a solution be found approaching the problem in some other way, like
avoiding restraining the column by means of using lower strength grout or a
polymer mix, mechanical solution, etc.  Sometimes you cannot avoid this
problem.

Any help is appreciated,  Thanks

Jose M. Mendez, P.E.

-----Original Message-----
From: ASQUILALA(--nospam--at)aol.com [mailto:ASQUILALA(--nospam--at)aol.com]
Sent: Tuesday, June 22, 1999 10:40 PM
To: seaint(--nospam--at)seaint.org
Subject: Re: Seismic - Isolating CMU infill wall


CHB is concrete hollow block.  In the Philippines, sometimes they are mixed
at the site, sometimes they are sold by enterprising individuals.  But their
strength are not known because there is no testing involved.  They are
mostly
used for infill rather than structural elements.

Alfonso S. Quilala Jr., P.E.