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<TITLE>Subject: RE: [CEUS-earthquake-hazards] Question-</TITLE>
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<P><FONT SIZE=2 FACE="Courier New">Laurence:</FONT>
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<P><FONT SIZE=2 FACE="Courier New">It sounds like the blood processing center may be considered to be a "lifeline" structure and therefore depending on the need for this service (I am assuming for the purpose of this exercise it is high since it provides 10 percent of the nations blood supply) may want to be designed for a higher level ground motion than the IBC standard. </FONT></P>
<P><FONT SIZE=2 FACE="Courier New">I would start with the 2,475 year return period event per the code and I would also look at the Amax. mean plus 1 (84th percentile) event using a deterministic approach. I would then review those results and sit down with the structural engineer and see what impacts (design and construction costs) are associated with these anticipated ground motions. Often times the difference in cost for the two are not as high as initially estimated. Ductile detailing and material properties have</FONT></P>
<P><FONT SIZE=2 FACE="Courier New">improved and are avialable at lower costs these days. For this type of</FONT>
<BR><FONT SIZE=2 FACE="Courier New">structure, generally a geologic hazards assessment should also be performed similar to Title 24 in CA which would include, flooding, landsliding, faulting, ground shaking, liquefaction, seiche, tsunami, etc. </FONT></P>
<P><FONT SIZE=2 FACE="Courier New">Larry </FONT>
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<P><FONT SIZE=2 FACE="Courier New">Lawrence P. Goldfarb, P.E.</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Sr. Geotechnical Engineer, Group Leader</FONT>
<BR><FONT SIZE=2 FACE="Courier New">3130 Fairview Park Drive</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Falls Church, VA 22042-4517</FONT>
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<P><FONT SIZE=2 FACE="Courier New">Phone: (703) 485-8500</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Direct: (703) 485-8434</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Cell: (703) 408-7282</FONT>
<BR><FONT SIZE=2 FACE="Courier New">Fax: (703) 698-1250</FONT>
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<P><FONT SIZE=2 FACE="Courier New">E-mail: goldfarblp@cdm.com</FONT>
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<P><FONT COLOR="#0080C0" SIZE=6 FACE="Arial Black">CDM</FONT>
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<BR><B><FONT SIZE=2 FACE="Arial">Lawrence P. Goldfarb, P.E.</FONT></B><BR>
<FONT SIZE=2 FACE="Arial">Sr. Geotechnical Engineer</FONT><FONT FACE="Times New Roman"> , Group Leader</FONT>
<BR><FONT COLOR="#000000" SIZE=2 FACE="Arial">3130 Fairview Park Drive</FONT><BR>
<FONT COLOR="#000000" SIZE=2 FACE="Arial">Falls Church, VA 22042-4517</FONT><BR>
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<P><FONT COLOR="#000000" SIZE=2 FACE="Arial">Phone: (703) 485-8500</FONT>
<BR><FONT COLOR="#000000" SIZE=2 FACE="Arial">Direct: (703) 485-8434</FONT>
<BR><FONT SIZE=2 FACE="Arial">Cell: (703) 408-7282</FONT>
<BR><FONT SIZE=2 FACE="Arial">Fax: (</FONT><FONT SIZE=2 FACE="Arial">703) 698-1250</FONT><BR>
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<P><FONT SIZE=2 FACE="Arial">E-mail: goldfarblp@cdm.com</FONT>
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<P><FONT FACE="Arial" SIZE=2 COLOR="#000000"> <<Goldfarb, Lawrence.vcf>> </FONT>
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