Friday, July 13, 2007

RE: Spectral Acceleration using 2006 IBC

I believe the 10%POE in 50 years ( = 475 yr return period) is your design
earthquake. The 2% in 50 is the Max considered earthquake.
The design is 2/3 of MCE.

David A. Topete, SE
-----Original Message-----
From: Larry Hauer [mailto:lrhauer@hotmail.com]
Sent: Friday, July 13, 2007 3:03 PM
To: seaint@seaint.org
Subject: Spectral Acceleration using 2006 IBC

To get the long and short spectral accelerations for designing earthquake
forces I have gone to the USGS website with the required latitude and
longitude. However, the website lists 2 values for each, a 10%PE in 50 yrs.
and a 2%PE in 50 years. Which of these sets of values am I to use when
designing to the 2006 IBC?

Thanks in Advance,

Larry Hauer S.E.

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n_HM_mini_2G_0507


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