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[Cob] Stanley Park Popcorn Stand Seismic Test

Kathy Dunster unfoldinglandscapes at gmail.com
Thu Mar 25 10:09:48 CDT 2010


For some really great photos and descriptions of the shake test at UBC go
to:

http://www.stanleyparkecology.ca/programs/cob/journal/journal.htm

The UBC Earthquake Engineering Lab is at
http://www.civil.ubc.ca/research/specializations/earthquake.php
The faculty member that performed the tests on the popcorn stand is Carlos
Ventura, his weblink is
http://www.civil.ubc.ca/people/faculty/faculty-ventura.php  If you go down
his list of publications you might find something useful - just email him
and ask if he has a pdf. He does a fair bit of testing on unreinforced
masonry.

Hope this helps.

Kathy Dunster
-------------------------------------------------------




On 24 March 2010 12:00, <coblist-request at deatech.com> wrote:

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> Today's Topics:
>
>   1. How to extend an urbanite foundation and drainage trench?
>      (Brian Liloia)
>   2. Re: official psi samples (Dulane)
>   3. Re: extending drainage and rubble trench (Mary Lou McFarland)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 23 Mar 2010 21:00:34 -0500
> From: Brian Liloia <evacindustry at gmail.com>
> Subject: [Cob] How to extend an urbanite foundation and drainage
>        trench?
> To: coblist at deatech.com
> Message-ID:
>        <b5fa84221003231900g45cd9c4dpf4e308586d604df at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi all:
>
> I am hoping to add a very small addition to my cob home this year: an
> extension to the doorway to create something of a mini mud room (or
> airlock). It will mostly consist of extending the foundation (and drainage
> as well, I presume) by about four or five feet.
>
> However, I'm not sure how to best go about this. How would you extend a
> drainage trench without disrupting what is already there? (My trench is 18"
> deep, filled with gravel and 4" perf pipe at the bottom).
>
> Any suggestions? What would be the best way to dig the extended trench
> without mucking stuff up?
>
> (Here's a photo of the entrance - the wall will be extended to kiss up
> against the exterior post:
> http://www.flickr.com/photos/smallape/3531827579/in/set-72157604714762643/
> )
>
> - ziggy
>
> --
> _________________
> I live at http://dancingrabbit.org
> I write at http://small-scale.net/stash
> and this is the Year of Mud http://small-scale.net/yearofmud
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 23 Mar 2010 21:06:36 -0700
> From: "Dulane" <silkworm at spiderhollow.com>
> Subject: Re: [Cob] official psi samples
> To: <coblist at deatech.com>
> Message-ID: <mailman.2.1269457202.11324.coblist at deatech.com>
> Content-Type: text/plain;       charset="us-ascii"
>
> Here's one of the links. Look for the Cob Code project link at the bottom:
>
> http://www.buildinggreen.com/live/index.cfm/2008/4/1/Earthen-Architecture-in
> -Earthquakes<http://www.buildinggreen.com/live/index.cfm/2008/4/1/Earthen-Architecture-in%0A-Earthquakes>
>
> -----Original Message-----
> From: coblist-bounces at deatech.com [mailto:coblist-bounces at deatech.com] On
> Behalf Of Damon Howell
> Sent: Monday, March 22, 2010 1:02 PM
> To: coblist at deatech.com
> Subject: Re: [Cob] official psi samples
>
> Janet,
>        I greatly appreciate what you're doing. All this code talk may bore
>
> some people, but I see it as absolutely necessary that we get
> approval for every building we erect with cob or we're just blowing
> in the wind (not the exact phrase that came to mind). So, about the
> samples; you said they're "official," does that mean they will be
> tested using the same machine they test concrete with? What we need
> is actual numbers for when it fails during any given test. Someone
> done the seismic test (University of British Columbia I believe), but
> I be ____ if I can't find the results which would be pretty darn
> useful to all of us! I would like to believe that the strength of
> concrete is overkill for most residential buildings. We generally
> don't need such compressive resistance (depends on the design, of
> course). I looked at the photos on Kevin McCabe's site and noticed
> that all his interior walls are cob, which distributes the weight of
> the roof across a bigger footprint.
>
> Damon in North Georgia
>
>
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>
> ------------------------------
>
> Message: 3
> Date: Wed, 24 Mar 2010 08:18:59 -0500
> From: Mary Lou McFarland <louiethefifth at hotmail.com>
> Subject: Re: [Cob] extending drainage and rubble trench
> To: <coblist at deatech.com>
> Message-ID: <SNT120-W2A87A20BA63F2642A8888B9250 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> I watched your complete  "year of mud" slideshow..... very nice!  I am
> assuming that the large window and the door both face south.  Have you
> considered bypassing this whole problem and making a little greenhouse
> entrance.  It would help out your solar gain in the winter.  It would be
> light enough you could just get some really weather resistant wood like
> hedge as your foundation piece instead of trenching.  Plexi is kind of
> expensive right now but maybe you could recycle some glass... though plexi
> would be safer in a mud room situation.  In the summer you might want to
> trellis some zucchini over it or something to keep it cool.  the main thing
> is that it would keep your drainage and foundation intact.  I'm a firm
> believer in K.I.S.S. (keep it simple, stupid).
> Mary Lou
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