Savannah River Site disaggregated seismic spectra

Technical Report · Mon Feb 01 04:00:00 EST 1993

DOI:https://doi.org/10.2172/10165069· OSTI ID:10165069

Stephenson, D E

The objective of this technical note is to characterize seismic ground motion at the Savannah River Site (SRS) by postulated earthquakes that may impact facilities at the site. This task is accomplished by reviewing the deterministic and probabilistic assessments of the seismic hazard to establish the earthquakes that control the hazard to establish the earthquakes that control the hazard at the site and then evaluate the associated seismic ground motions in terms of response spectra. For engineering design criteria of earthquake-resistant structures, response spectra serve the function of characterizing ground motions as a function of period or frequency. These motions then provide the input parameters that are used in the analysis of structural response. Because they use the maximum response, the response spectra are an inherently conservative design tool. Response spectra are described in terms of amplitude, duration, and frequency content, and these are related to source parameters, travel path, and site conditions. Studies by a number of investigators have shown by statistical analysis that for different magnitudes the response spectrum values are different for differing periods. These facts support Jennings` position that using different shapes of design spectra for earthquakes of different magnitudes and travel paths is a better practice than employing a single, general-purpose shape. All seismic ground motion characterization results indicate that the PGA is controlled by a local event with M{sub w} < 6 and R < 30km. The results also show that lower frequencies are controlled by a larger, more distant event, typically the Charleston source. The PGA of 0.2 g, based originally on the Blume study, is consistent with LLNL report UCRL-15910 (1990) and with the DOE position on LLNL/EPRI.

• Research Organization: Westinghouse Savannah River Co., Aiken, SC (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC09-89SR18035
• OSTI ID: 10165069
• Report Number(s): WSRC-TR--93-102; ON: DE93016174
• Country of Publication: United States
• Language: English

Related Subjects

053004
054000
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
DESIGN BASIS AND HYPOTHETICAL ACCIDENTS
EARTHQUAKES
EPRI
GROUND MOTION
HAZARDS
HEALTH AND SAFETY
LAWRENCE LIVERMORE LABORATORY
RISK ASSESSMENT
SAVANNAH RIVER PLANT
SEISMIC EFFECTS
SEISMOLOGY
US DOE