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Re: Overhead Electric Crane & Runway in Chile

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There are 6 UBC Seismic zones: 0, 1, 2a, 2b, 3, and 4.  Each zone has a
published ground acceleration factor and specific detailing requirements.
Zone 0 has "no" seismic and zone 4 has the highest loads and detailing
requirements.  Zone 4 also has "near-source" factors for sites located near
seismic sources.

In the USA, zone 4 is on the west coast, lots of the Rocky Mountains, and
lots of Alaska.

For comparison purposes, I'd use the worst-case in your building code.

----
Jason Kilgore
Leigh & O'Kane, L.L.C.
816-444-3144
816-444-9655 (FAX)
----- Original Message ----- 
From: "Gary Hodgson & Associates" <ghodgson(--nospam--at)vaxxine.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Friday, December 05, 2003 12:40 PM
Subject: Overhead Electric Crane & Runway in Chile


> Greetings,
>
> I wonder if there's anyone out there who can help me.  I am quoting
> for a job to design an overhead electric crane and runway in Chile.
> The end customer has specified that it be designed for UBC Seismic
> Zone 4.  We don't use the UBC here in Canada, so this doesn't mean
> anything to me.  Can somebody tell me what the effect of this will be
> on the crane and its runway or point me to any online resources?  As
> it is for a quote and time does not allow, I'm limited in the time I
> have to research this.
>
> thanks all,
> Gary Hodgson, P.Eng.
> Niagara Falls, ON
>
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