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Title: Standardization of the cumulative absolute velocity

Abstract

EPRI NP-5930, A Criterion for Determining Exceedance of the Operating Basis Earthquake,'' was published in July 1988. As defined in that report, the Operating Basis Earthquake (OBE) is exceeded when both a response spectrum parameter and a second damage parameter, referred to as the Cumulative Absolute Velocity (CAV), are exceeded. In the review process of the above report, it was noted that the calculation of CAV could be confounded by time history records of long duration containing low (nondamaging) acceleration. Therefore, it is necessary to standardize the method of calculating CAV to account for record length. This standardized methodology allows consistent comparisons between future CAV calculations and the adjusted CAV threshold value based upon applying the standardized methodology to the data set presented in EPRI NP-5930. The recommended method to standardize the CAV calculation is to window its calculation on a second-by-second basis for a given time history. If the absolute acceleration exceeds 0.025g at any time during each one second interval, the earthquake records used in EPRI NP-5930 have been reanalyzed and the adjusted threshold of damage for CAV was found to be 0.16g-set.

Authors:
;  [1]
  1. Yankee Atomic Electric Co., Bolton, MA (United States)
Publication Date:
Research Org.:
Electric Power Research Inst., Palo Alto, CA (United States); Yankee Atomic Electric Co., Bolton, MA (United States)
Sponsoring Org.:
EPRI; Electric Power Research Inst., Palo Alto, CA (United States)
OSTI Identifier:
6086416
Report Number(s):
EPRI-TR-100082
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; NUCLEAR POWER PLANTS; SEISMIC EFFECTS; ACCELERATION; DESIGN BASIS ACCIDENTS; EARTHQUAKES; GROUND MOTION; ACCIDENTS; MOTION; NUCLEAR FACILITIES; POWER PLANTS; REACTOR ACCIDENTS; SEISMIC EVENTS; THERMAL POWER PLANTS; 220900* - Nuclear Reactor Technology- Reactor Safety; 220200 - Nuclear Reactor Technology- Components & Accessories

Citation Formats

O'Hara, T F, and Jacobson, J P. Standardization of the cumulative absolute velocity. United States: N. p., 1991. Web.
O'Hara, T F, & Jacobson, J P. Standardization of the cumulative absolute velocity. United States.
O'Hara, T F, and Jacobson, J P. 1991. "Standardization of the cumulative absolute velocity". United States.
@article{osti_6086416,
title = {Standardization of the cumulative absolute velocity},
author = {O'Hara, T F and Jacobson, J P},
abstractNote = {EPRI NP-5930, A Criterion for Determining Exceedance of the Operating Basis Earthquake,'' was published in July 1988. As defined in that report, the Operating Basis Earthquake (OBE) is exceeded when both a response spectrum parameter and a second damage parameter, referred to as the Cumulative Absolute Velocity (CAV), are exceeded. In the review process of the above report, it was noted that the calculation of CAV could be confounded by time history records of long duration containing low (nondamaging) acceleration. Therefore, it is necessary to standardize the method of calculating CAV to account for record length. This standardized methodology allows consistent comparisons between future CAV calculations and the adjusted CAV threshold value based upon applying the standardized methodology to the data set presented in EPRI NP-5930. The recommended method to standardize the CAV calculation is to window its calculation on a second-by-second basis for a given time history. If the absolute acceleration exceeds 0.025g at any time during each one second interval, the earthquake records used in EPRI NP-5930 have been reanalyzed and the adjusted threshold of damage for CAV was found to be 0.16g-set.},
doi = {},
url = {https://www.osti.gov/biblio/6086416}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Dec 01 00:00:00 EST 1991},
month = {Sun Dec 01 00:00:00 EST 1991}
}

Technical Report:
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