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RE: Site Accelerations

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Oh and don't forget the FEMA P-750 for a really good right-up and 
justification.  They ran a lot of examples from all over the US.

Regards, Harold Sprague

> From: spraguehope(--nospam--at)
> Date: Wed, 28 Nov 2012 21:56:52 -0600
> Subject: RE: [SEAINT-SEAOSC] Site Accelerations
> To: seaint-seaosc(--nospam--at)
> Tarek,
> You REALLY want to put me on the spot.
> This was a point of major consernation, debate, cussing and discussing in
> the ASCE 7 process. This is one of those connection issues. The various
> sections of the IBC invoke various sections and issues of the ASCE 7. The
> ASCE 7 draws from the NEHRP various documents. There was a huge change
> that came into the ASCE 7-10. (Preview: There will be more subtile 
> changes in teh ASCE 7-10 Suppliment)
> The ASCE 7-10 changed from the Maximum Considered Earthquake (MCE) to the
> Maxium Considered Earthquake Risk Targeted (MCER). The probability went
> from a 2% chance of exceedance in 50 years for the MCE in the ASCE 7-05 
> to a 1% chance of exceedance in 50 years for the MCER in the ASCE 7-10.

Truncated 1628 characters in the previous message to save energy.

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