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Wednesday, July 8, 2020 | History

1 edition of Assessment of seismic margin calculation methods found in the catalog.

Assessment of seismic margin calculation methods

Assessment of seismic margin calculation methods

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  • 28 Currently reading

Published by Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission in Washington, D.C .
Written in English

    Subjects:
  • Nuclear power plants -- Earthquake effects -- Mathematical models.,
  • Earthquake resistant design.

  • Edition Notes

    Statementprepared by R.P. Kennedy ... [et al.].
    ContributionsKennedy, R. P., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering., Lawrence Livermore National Laboratory.
    The Physical Object
    Pagination1 v. (various pagings) :
    ID Numbers
    Open LibraryOL15360095M

    Photograph of a seismic refraction survey Seismic refraction tomogram of a salt diapir in central Utah. Hot colors correspond to higher velocities, i.e., salt. Cool colors delineate shale. SEISMIC METHODS Introduction: Seismic techniques are commonly used to determine site geology, stratigraphy, and rock quality. These techniques provide detailed. Basic principles of the seismic method In this chapter we introduce the basic notion of seismic waves. In the earth, seismic waves can propagate as longitudinal (P) or as shear (S) waves. For free space, the one-dimensional wave equation is derived. The wave phenomena occurring at a boundary between two layers are discussed, such as Snell’s.

    For seismic safety evaluation method of nuclear power plant, nuclear power plant seismic margin analysis (SMA) and nuclear power plant seismic probability safety assessment (SPSA) are the most widely used methods. SMA is a method base on deterministic theory. Seismic capacity is valued by high confidence and low failure probability (HCLPF). ASSESSMENT OF SEISMIC MARGIN CALCULATION METHODS active, Most Current Buy Now. Details. History. Organization: NRC/NUC: Status: active: Page Count: Document History. NUREG CR ASSESSMENT OF SEISMIC MARGIN CALCULATION METHODS A description is not available for this item. Advertisement. STAY CONNECTED WITH US .

    and provided a framework for the seismic design of under-ground tanks. The recommendation has accordingly included a new response displacement method and a new earth pressure calculation method, taking into account the design methods adopted by . However, details of both methods will not be presented because these details are readily available in the referenced publication. For example, Refs. 1 through 4 provide details on the SPRA Method with the emphasis of Refs. 3 and 4 being on seismic fragility assessment. Similarly, Refs. 5 through 10 provide details on the Seismic Margin Method.


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Assessment of seismic margin calculation methods Download PDF EPUB FB2

@article{osti_, title = {Assessment of seismic margin calculation methods}, author = {Kennedy, R P and Murray, R C and Ravindra, M K and Reed, J W and Stevenson, J D}, abstractNote = {Seismic margin review of nuclear power plants requires that the High Confidence of Low Probability of Failure (HCLPF) capacity be calculated for certain components.

Get this from a library. Assessment of seismic margin calculation methods. [R P Kennedy; U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering.; Lawrence Livermore National Laboratory.;].

@article{osti_, title = {Assessment of seismic margin calculation methods}, author = {Kennedy, R.P. and Murray, R.C. and Ravindra, M.K. and Reed, J.W. and Stevenson, J.D.}, abstractNote = {Seismic margin review of nuclear power plants requires that the High Confidence of Low Probability of Failure (HCLPF) capacity be calculated for certain components.

Strong expertise and references in seismic design and margin evaluation of nuclear power plants Accurate assessment of the margins required to document safety authorities´ expectations Synergies between involved technical disciplines, combining analytical experience with know-how specific to individual component classes.

Book: Assessment of seismic margin calculation methods. NUREG/CR - UCID KENNEDY RP, MURRAY RC, RAVINDRA MK, REED JW, STEVENSON JD By continuing to browse on our website, you give to Lavoisier the permission to add.

Seismic Margin Assessment Assess the safety of the plant and the margins in case of earthquake The challenge In many countries, the Safety Authorities have reviewed their requirements with respect to seismic assumptions, either to reevaluate the design require-ments or to request analysis of the consequences.

traditional design methods cannot explicitly depict the plant seismic margin over the design basis earthquake. To demonstrate the plant seismic margin and to seek out “weak link” components that limit the plant seismic margin, Seismic Margin Assessment (SMA) was proposed and has been implemented in nuclear power industry since mids [].

They are the seismic margin assessment and the seismic probabilistic risk assessment. The former is deterministic, and the latter probabilistic. Fundamentally, both methodologies use the same input data from past reports on the seismic activity in the vicinity of the facility, state of soil, materials used in construction of facility, pipes.

The seismic-response and seismic-failure-correlation coefficients of the emergency diesel generators installed within the units are successfully derived via the proposed method. In addition, the distribution of the seismic-response-correlation coefficient was observed as a function of the distance between SSCs of various dynamic characteristics.

Books and summary papers. 68 References 4. 5 Section 1 An overview of PSHA “The language of probability allows us to speak quantitatively about some situation which mathematical approach for performing this calculation is known as Probabilistic Seismic Hazard Analysis, or PSHA.

Inan earthquake and subsequent tsunami hit the Fukushima Daiichi Nuclear Power Plant, causing simultaneous accidents in several reactors. This.

Implementation of a Probabilistic Risk Assessment-Based Seismic Margin Analysis for New Reactors,” dated Mato provide a clear process for the implementation and the safety review of PRA-based seismic margin assessments.

This paper discusses key elements of DC/COL-ISG with respect to DC applications and. Seismic margin studies Methods in use to assess events greater than the SSE are typically similar to those adopted for seismic margins Kunar, C.R.

Smith / Seismic design in the U.K. studies in the United States [7], although for PWR projects several differences in emphasis have arisen because the assessment has been required at the pre. @article{osti_, title = {A methodology for assessment of nuclear power plant seismic margin}, author = {Reed, J W and Kennedy, R P and Buttemer, D R and Idriss, I M and Moore, D P and Barr, T and Wooten, K D and Smith, J E}, abstractNote = {EPRI's seismic margin methodology enables utility engineers to quantify a nuclear power plant's ability to withstand.

A seismic interpretation study should access the following data sets. 2D or 3D seismic data cube. • Well data are gotten from rock samples and measurements at depth from a wellbore. Well data required for interpretation are wire-line logs (gamma ray logs, resistivity logs, porosity log, sonic logs, density logs and neutron logs) or equivalent rock property model.

Seismic analysis is a subset of structural analysis and is the calculation of the response of a building (or nonbuilding) structure to is part of the process of structural design, earthquake engineering or structural assessment and retrofit (see structural engineering) in regions where earthquakes are prevalent.

As seen in the figure, a building has the potential to. Seismic methods involve measuring the propagation of seismic waves through earth materials. In seismic surveys, seismic waves radiate outward from a sound source at the surface, which can be an explosive charge or a mechanical impact.

The refraction technique uses a long array of geophones to sense refracted waves, and the reflection technique uses a condensed array. Abstract: The objective of a seismic margin review of a plant is to determine if the plant can safely withstand an earthquake larger than the design-basis earthquake (DBE), namely the safe shutdown earthquake (SSE).

In the mids, two different methodologies for the seismic margin assessment (SMA) of nuclear power plants were developed. One was. Instructional Material Complementing FEMADesign Examples Seismic Load Analysis 9 - 2 Topic Objectives •Selection of method of analysis •Description of analysis techniques •Modeling considerations •System regularity •Load combinations •Other considerations •Drift computation and acceptance criteria •P-delta effects.

Seismic Refraction Method •The first seismic method utilized in the field of exploration. • It was used in seismology for determining the Mohorovicic discontinuity, and to discover the nuclei of earth.

• The Description of the geometry of refracted. Earthquake Load Calculation (base shear method) The 3-story standard office building is located in Los Angeles situated on stiff soil. The structure of the building is steel special moment frame. All moment-resisting frames are located at the perimeter of the building.

Determine the earthquake force on each story in North-South direction.Order online or call: Americas: +1 | Asia Pacific: + | Europe, Middle East, Africa: +44 Prices subject to change without notice.SEISMIC MARGIN ASSESSMENT A review level earthquake (RLE) for the Pickering site was selected at the 84th percentile, 10,4 per annum probability level, described by a uniform hazard response spectrum produced by the seismic hazard assessment.

With a zero period acceleration of g, the RLE is bounded by the EPRI Seismic Qualification Utility.