ML20195F196

Rev 0 to Calculation 93C1783-13, Seismic Fragility (SPRA) Analysis,Beaver Valley Unit 1,Reactor Coolant Pump

ML20195F196
Person / Time
Site:	Beaver Valley
Issue date:	01/31/1994
From:	STEVENSON & ASSOCIATES
To:
Shared Package
ML20195F186	List: L-98-218, Forwards Response & Calculations in Response to 980728 NRC Ltr Which Requested Addl Info Re IPEEE for Bvps,Unit 2 ML20195F196 ML20195F211 ML20195F232 ML20195F244 ML20195F251
References
93C1783-13, 93C1783-13-R, 93C1783-13-R00, NUDOCS 9811190209
Download: ML20195F196 (14)

Text

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Client: D n r ., ,, e Llgl,4!fL6.J.,c_ Calculation No. 9 c i7 s?- #7 1 i

Title:

CEIS AtrC FM A C I L IT Y (SPPA) A 4 zvioj @ r A vc a up le c y uppy

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l Acceptance Criteria:

Remarks:

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l ATTACHMENT C i

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! Description of Stevenson & Associates l Program TANKV

s 1 Computer Software Systems and Services TANKV Software System The TANKV software system calculates the seismic response of vertical cylindrical liquid storage tanks and estimates their seismic capacity in terms of seismic margins. These calculations give a High-Confidence-Low-Probability-of-Failure Seismic Margin Earthquake (HCLPF SME) capacity of the tank following the Conservative Deterministic Failure Margin (CDFM) approach. The results can also be used to estimate seismic fragility capacity and design code capacity of the tank. TANKV is designed to perform an interactive analysis of vertical cylindrical liquid storage tanks subjected to base seismic excitations. Some -

Program Features and Capabilities include:

a SuppliedDatabase Containing:

a ASME Materials and Material Propertles m Anchorage Materials andDetalls

, a Various Types ofInput Response Spectra n Properties forMany Common Llquids l

a a Ability for USER Additions to the Database m Capability to Evaluate Anchored or Unanchored Tanks l a Capability to Evaluate Bottom Vollft andLiquidHold-down Forces e

= Consideration of Flexible Founaation and Tank Interaction l

, a Capability to Evaluate Roofed and Unroofed Tanks

" #A# Y' " # # "' # # "0 y  ?.C *.* t :py}

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The following provides a basic description of the program technical basis. The seismic analysis of vertical cylindrical liquid storage tanks consists of two phases: a seismic response analysis and a seismic capacity assessment. The response analysis in TANKV is mostly based on works of Veletos and Haroun and Housner. The capacity assessment is primarily based on the work of Kennedy. For anchored tanks small displac3 ment theory is used to compute the liquid hold-down forces. For tanks with minimum anchorage and for unanchored tanks, the use of small displacement theory to evaluate liquid hold-down forces will result in excessively conservative HCLPF's. Therefore for these tanks a more appropriate upper bound theory is used for the evaluation.

The program is presently operable on PC under DOS (version 2.0 or higher) and Microsoft Windows. The program is highly user friendly, with a screen menu driven input system.

, for more information.........

4 Write....

Stevenson and Associates 9217 Midwest Avenue Cleveland, Ohio 44125 Call....(216) 587-3805 Fax....(216) es2-6273

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f i ATTACHMENT D i

e l HCLPF Calculations for BVPS-2

Flat Bottom Tanks i

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