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RE: Relationship Between Av and Z

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Thank you very much for your reply.

The site for our project is located at Liaocheng in Shandong province,
China. We believe that a site between Zone 1 and 2A of UBC 97 corresponds
the basic design earthquake accelerationof 0.1g of the site. We also believe
that according to UBC 97, the seismic performance category for our structure
is Category B and as such no special seismic requirements are applicable and
that the design could be carried out in accordance with solely the AISC
Specification ( LRFD, Part 6).

Many thanks for your interest.


From: Harold Sprague
To: 'Zhang, Zhigang'
Subject: RE: Relationship Between Av and Z
Date: 1999Äê2ÔÂ2ÈÕ 15:33PM

The problem that we have is that the derivation of Z was as much political
as it was scientific.  I have information of seismicity throughout the world
including China.  If you send me the location of your site I will be able to
give you a reasonable estimation of Z and Av.

Harold Sprague, P.E., Chief Structural Engineer
The Neenan Company
2620 E. Prospect Ave., Suite 100
Fort Collins, CO 80525
voice 970-416-7298
fax 970-493-5869