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Acceleration amplifications in nif structures subjected to earthquake base motions

Description: NIF technical staff have questioned the possibility of obtaining acceleration amplifications (i.e. amplification of the ground acceleration values) in a structure which are significantly higher than the acceleration amplification exhibited across the period range in the input response spectrum. This note utilizes a simple example to illustrate that the acceleration amplification resulting from the dynamic response of a structural system can indeed be significantly higher than the amplifications… more
Date: November 29, 1999
Creator: McCallen, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual Hanford Seismic Report for Fiscal Year 2008

Description: The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The HSAP is responsible for locating and identifying sources of seismic activity and monitoring changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural pheno… more
Date: December 29, 2008
Creator: Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E. & Devary, Joseph L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development of the seismic input for use in the seismic safety margins research program

Description: This paper briefly outlines the overall systems approach being developed for the Seismic Safety Margins Research Program. The unique features of the approach being taken to reduce the uncertainty in the seismic input for this program are discussed. These unique features will include extensive use of expert opinion, earthquake rupture simulation studies and the way in which the seismic hazard is incorporated into the overall systems analysis. Some very preliminary results are also given for the … more
Date: January 29, 1980
Creator: Bernreuter, D.L. & Chung, D.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Displacement Based Seismic Design Criteria

Description: The USNRC has initiated a project to determine if any of the likely revisions to traditional earthquake engineering practice are relevant to seismic design of the specialized structures, systems and components of nuclear power plants and of such significance to suggest that a change in design practice might be warranted. As part of the initial phase of this study, a literature survey was conducted on the recent changes in seismic design codes/standards, on-going activities of code-writing organ… more
Date: March 29, 1999
Creator: Costello, J. F.; Hofmayer, C. & Park, Y. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DISPLACEMENT BASED SEISMIC DESIGN CRITERIA

Description: The USNRC has initiated a project to determine if any of the likely revisions to traditional earthquake engineering practice are relevant to seismic design of the specialized structures, systems and components of nuclear power plants and of such significance to suggest that a change in design practice might be warranted. As part of the initial phase of this study, a literature survey was conducted on the recent changes in seismic design codes/standards, on-going activities of code-writing organ… more
Date: March 29, 1999
Creator: HOFMAYER,C.H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

First Quarter Hanford Seismic Report for Fiscal Year 2010

Description: The Hanford Seismic Network and the Eastern Washington Regional Network consist of 44 individual sensor sites and 15 radio relay sites maintained by the Hanford Seismic Assessment Team. The Hanford Seismic Network recorded 81 local earthquakes during the first quarter of FY 2010. Sixty-five of these earthquakes were detected in the vicinity of Wooded Island, located about eight miles north of Richland just west of the Columbia River. The Wooded Island events recorded this quarter is a continuat… more
Date: March 29, 2010
Creator: Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E. & Devary, Joseph L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Japanese Nuclear Incident: Technical Aspects

Description: Japan’s nuclear incident has engendered much public and congressional concern about the possible impact of radiation on the Japanese public, as well as possible fallout on U.S. citizens. This report provides information on technical aspects of the nuclear incident, with reference to human health.
Date: March 29, 2011
Creator: Medalia, Jonathan
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Protected air-cooled condenser for the Clinch River Breeder Reactor Plant

Description: The long term residual heat removal for the Clinch River Breeder Reactor Plant (CRBRP) is accomplished through the use of three protected air-cooled condensers (PACC's) each rated at 15M/sub t/ following a normal or emergency shutdown of the reactor. Steam is condensed by forcing air over the finned and coiled condenser tubes located above the steam drums. The steam flow is by natural convection. It is drawn to the PACC tube bundle for the steam drum by the lower pressure region in the tube bun… more
Date: May 29, 1981
Creator: Louison, R. & Boardman, C. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Quantification of seismic liquefaction risk

Description: Explicit goals of acceptable risk for natural phenomena hazards (earthquake, extreme wind, and flood) have been established by the Department of Energy (DOE) 1994. Closely associated to the earthquake risk is the issue of seismically-induced liquefaction. Because deterministic methods currently available to answer the question to whether a site is liquefiable or not are incapable of providing a clue as to the likelihood or risk of liquefaction, the application of the criteria to a given facilit… more
Date: February 29, 1996
Creator: Arango, I.; Ostadan, F.; Lewis, M. R. & Gutierrez, B. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Real-time earthquake alert system for the greater San Francisco Bay Area: a prototype design to address operational issues

Description: This paper describes a prototype for this EAS (real time) in the Bay area. Approach is pragmatic, attempting to establish a prototype system at a low cost and quickly. A real-time warning system can protect the public and mitigate earthquake damage. The proposed system is a distributed network of real-time strong-motion monitoring stations that telemetered data in real time to a central analysis facility which could transmit earthquake parameter information to an area before elastic wave energy… more
Date: May 29, 1996
Creator: Harben, P.E.; Jarpe, S. & Hunter, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Safety assessment of discharge chute isolation barrier preparation and installation

Description: The safety assessment is made for the activities for the preparation and installation of the discharge chute isolation barriers. The safety assessment includes a hazard assessment and comparison of potential accidents/events to those addressed by the current safety basis documentation. No significant hazards were identified. An evaluation against the USQ evaluation questions were made and the determination made that the activities do not represent a USQ. Hazard categorization techniques were us… more
Date: September 29, 1994
Creator: Meichle, R. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Third Quarter Hanford Seismic Report for Fiscal Year 2010

Description: The Hanford Seismic Assessment Program (HSAP) provides an uninterrupted collection of high-quality raw and processed seismic data from the Hanford Seismic Network for the U.S. Department of Energy and its contractors. The HSAP is responsible for locating and identifying sources of seismic activity and monitoring changes in the historical pattern of seismic activity at the Hanford Site. The data are compiled, archived, and published for use by the Hanford Site for waste management, natural pheno… more
Date: September 29, 2010
Creator: Rohay, Alan C.; Sweeney, Mark D.; Hartshorn, Donald C.; Clayton, Ray E. & Devary, Joseph L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Verifying seismic design of nuclear reactors by testing. Volume 2: appendix, theoretical discussions

Description: Theoretical discussions on seismic design testing are presented under the following appendix headings: system functions, pulse optimization program, system identification, and motion response calculations from inertance measurements of a nuclear power plant.
Date: July 29, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Y-12 site-specific earthquake response analysis and soil liquefaction assessment

Description: A site-specific earthquake response analysis and soil liquefaction assessment were performed for the Oak Ridge Y-12 Plant. The main purpose of these studies was to use the results of the analyses for evaluating the safety of the performance category -1, -2, and -3 facilities against the natural phenomena seismic hazards. Earthquake response was determined for seven (7), one dimensional soil columns (Fig. 12) using two horizontal components of the PC-3 design basis 2000-year seismic event. The c… more
Date: September 29, 1995
Creator: Ahmed, S.B.; Hunt, R.J. & Manrod, W.E. III
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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