Quantcast Criteria - std102395_reaf0011

 

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Applicable DOE Documents
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Natural Phenomena Hazards Assessment Criteria - index
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Development of Seismic Hazard Curves Based on Existing PSHA


DOE-STD-1023-95
3. CRITERIA
3.1 Detailed Criteria for Seismic Hazard Assessment
3.1.1 General
a.
This Standard provides criteria for determining ground motion parameters for the Design/Evaluation
Basis Earthquake (DBE). It also provides criteria for determining the acceptable design response
spectral shape.
b.
Seismic design and evaluation criteria for Department of Energy facilities are provided by DOE-
STD-1020-2002. In accordance with DOE-STD-1020-2002, DBE spectra shall be determined and
used for the design/evaluation process.
c.
In accordance with DOE-STD-1020-2002 the DBE spectra shall be a site-specific shape anchored to
the appropriate ground motion parameters following the provisions of Sections 3.1.3 and 3.1.5.
When a site-specific response spectrum shape is unavailable, a standardized spectrum shape is
acceptable.
d.
The seismic hazard assessment shall consider all effects of earthquakes including not only earthquake
ground shaking, but also earthquake-induced ground failure modes such as fault offset (see Section
3.1.4).
e.
For sites containing facilities with SSCs in only Performance Category (PC) 1 or 2, it is sufficient to
utilize seismic hazard maps from the current version of model building codes or national consensus
standards if no site-specific probabilistic seismic hazard assessment (PSHA) has been conducted for
the sites. For sites which have site-specific probabilistic seismic hazard assessments, the SSCs in
Performance Category 1 or 2 shall be evaluated or designed for the greater of the site-specific values
or the model code values unless lower site-specific values are approved by DOE. Limitations on use
of site specific probabilistic natural phenomena assessments contained within model building codes
shall be complied with.
f.
For sites containing facilities with SSCs in Performance Category 3 or 4, a site-specific PSHA shall
be conducted to determine the DBE.
g.
DOE O 420.1 requires that site-specific seismic hazard assessment methodology be reviewed at least
every 10 years.
3.1.2 Development of Site-Specific Seismic Hazard Curves (SHC)
a.
Two options are acceptable for the development of SHC. The first option is to utilize existing
probabilistic seismic hazard assessment (PSHA) studies. This option is addressed in Section 3.1.2.1.
The second option is to conduct a new site-specific PSHA, as described in Section 3.1.2.2.
b.
Any new site-specific seismic hazard assessment to generate seismic hazard curves shall consider
available site-specific geologic and seismic data in conformance with DOE-STD-1022-94.
3


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