Evaluation of soil damping techniques used in soil structure interaction analysis of a nuclear power plant

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A prediction of dynamic soil properties at the site of a nuclear power plant plays a very important role in the seismic analysis of the facility. Conventional modal analysis procedures can accommodate virtually any range of equivalent elastic soil stiffness which is used to characterize the site. However, high radiation damping associated with energy dissipation in the soil half-space is difficult to accommodate in an elastic modal solution to the dynamic problem. Several methods are available to combine the soil damping with the structural damping in a composite modal damping coefficient. However, even with this convenient representation, the resulting large … continued below

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15 pages

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Nelson, T.A. February 24, 1982.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 84 times. More information about this article can be viewed below.

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Description

A prediction of dynamic soil properties at the site of a nuclear power plant plays a very important role in the seismic analysis of the facility. Conventional modal analysis procedures can accommodate virtually any range of equivalent elastic soil stiffness which is used to characterize the site. However, high radiation damping associated with energy dissipation in the soil half-space is difficult to accommodate in an elastic modal solution to the dynamic problem. Several methods are available to combine the soil damping with the structural damping in a composite modal damping coefficient. However, even with this convenient representation, the resulting large fractions of critical damping can make modal solutions to the problems suspect. This paper is based on experience gained in this area during studies performed for the Nuclear Regulatory Commission involving seismic analyses of power plants.

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15 pages

Notes

NTIS, PC A02/MF A01.

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  • International conference on soil dynamics and earthquake engineering, Southampton, UK, 13 Jul 1982

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  • Other: DE82009014
  • Report No.: UCRL-86217
  • Report No.: CONF-820707-1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5070464
  • Archival Resource Key: ark:/67531/metadc1059612

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 24, 1982

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • July 3, 2019, 12:10 p.m.

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Nelson, T.A. Evaluation of soil damping techniques used in soil structure interaction analysis of a nuclear power plant, article, February 24, 1982; California. (https://digital.library.unt.edu/ark:/67531/metadc1059612/: accessed June 11, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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