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Recommendations for Revision of Seismic Damping Values in Regulatory Guide 1.61 (NUREG/CR-6919)On this page: Download complete document The following links on this page are to documents in Adobe Portable Document Format (PDF). See our Plugins, Viewers, and Other Tools page for more information. For successful viewing of PDF documents on our site please be sure to use the latest version of Adobe. Publication InformationManuscript Completed: September 2006
Prepared by
Brookhaven National Laboratory H.L. Graves, NRC Program Manager
Prepared for AbstractThis report provides recommendations developed by Brookhaven National Laboratory (BNL) for revision of the damping values in U.S. Nuclear Regulatory Commission (NRC) Regulatory Guide 1.61, "Damping Values for the Seismic Design of Nuclear Power Plants," Rev. 0, issued October 1973. The recommendations included herein are based on the results of various damping studies, as well as NRC licensing actions related to the resolution of damping issues. Recommendations of the NRC Damping Task Force, and additional work performed by BNL to address staff questions have been incorporated into the final recommendations. The recommendations in this document considered recently published guidance on damping for seismic analysis included in ASCE Standard 43-05, "Seismic Design Criteria For Structures, Systems, and Components in Nuclear Facilities" and ASME Boiler and Pressure Vessel Code, Section III, Division 1, Non-Mandatory Appendix N, "Dynamic Analysis Methods", 2004 Edition. |
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