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Structural seismic upgrading of NPPs in Czech and Slovak republics

Abstract

Several Nuclear Power Plants of the VVER type has been constructed during the past years in former Czechoslovak Republic. Some of them has been already put in operation and some of them are under construction. Nuclear Power Plants V1(2 units of VVER 440/230), V2(2 units of VVER 440/213) in Slovak and NPP Dukovany (4 units of VVER 440/213) in Czech republic are in operation. NPP Mochovce (4 units of VVER 440/213) in Slovak and NPP Temelin (4 units reduced now to 2 units VVER 1000) have been already almost completed, but still under construction. All above cited NPPs have not been either explicitly designed against earthquake or the design against earthquake or its input data must be upgraded to be compatible with present requirements. The upgrading of seismic input as well the seismic upgrading of all structures and technological equipments for so many NPPs has involved a lot of comprehensive work in Czech as well as in Slovak republics. The upgrading cannot be completed in a short time and as a rule the seismic upgrading has been usually performed in several steps, beginning with the most important arrangements against seismic hazard. The basic principles and requirements for seismic upgrading has  More>>
Authors:
David, M [1] 
  1. DAVID Consulting, Engineering and Design Office, Prague (Czech Republic)
Publication Date:
Mar 01, 1997
Product Type:
Conference
Report Number:
INIS-JP-074; CONF-9703113-
Reference Number:
SCA: 210200; PA: JPN-97:009181; EDB-97:143751; SN: 97001867085
Resource Relation:
Conference: International symposium on seismic safety relating to nuclear power plants, Kobe (Japan), 3-6 Mar 1997; Other Information: PBD: Mar 1997; Related Information: Is Part Of International symposium on seismic safety relating to nuclear power plants; PB: 583 p.
Subject:
21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; EARTHQUAKES; DESIGN; WWER TYPE REACTORS; CZECH REPUBLIC; RETROFITTING; RECOMMENDATIONS; SAFETY ENGINEERING; BUILDINGS; REACTOR COMPONENTS; EXPERIMENT PLANNING; STRUCTURAL MODELS; OSCILLATION MODES; THREE-DIMENSIONAL CALCULATIONS
OSTI ID:
545220
Research Organizations:
Ministry of International Trade and Industry, Tokyo (Japan); Nuclear Power Engineering Corp., Tokyo (Japan)
Country of Origin:
Japan
Language:
English
Other Identifying Numbers:
Other: ON: DE97764431; TRN: JP9709181
Availability:
OSTI as DE97764431
Submitting Site:
JPN
Size:
pp. S3/6/50-S3/6/68
Announcement Date:
Dec 09, 1997

Citation Formats

David, M. Structural seismic upgrading of NPPs in Czech and Slovak republics. Japan: N. p., 1997. Web.
David, M. Structural seismic upgrading of NPPs in Czech and Slovak republics. Japan.
David, M. 1997. "Structural seismic upgrading of NPPs in Czech and Slovak republics." Japan.
@misc{etde_545220,
title = {Structural seismic upgrading of NPPs in Czech and Slovak republics}
author = {David, M}
abstractNote = {Several Nuclear Power Plants of the VVER type has been constructed during the past years in former Czechoslovak Republic. Some of them has been already put in operation and some of them are under construction. Nuclear Power Plants V1(2 units of VVER 440/230), V2(2 units of VVER 440/213) in Slovak and NPP Dukovany (4 units of VVER 440/213) in Czech republic are in operation. NPP Mochovce (4 units of VVER 440/213) in Slovak and NPP Temelin (4 units reduced now to 2 units VVER 1000) have been already almost completed, but still under construction. All above cited NPPs have not been either explicitly designed against earthquake or the design against earthquake or its input data must be upgraded to be compatible with present requirements. The upgrading of seismic input as well the seismic upgrading of all structures and technological equipments for so many NPPs has involved a lot of comprehensive work in Czech as well as in Slovak republics. The upgrading cannot be completed in a short time and as a rule the seismic upgrading has been usually performed in several steps, beginning with the most important arrangements against seismic hazard. The basic principles and requirements for seismic upgrading has been defined in accordance with the international and particularly with the IAEA recommendations. About the requirements for seismic upgrading of NPPs in Czech and Slovak republics will be reported in other contribution. This contribution is dealing with the problems of seismic upgrading of NNPs civil engineering structures. The aim of this contribution is to point out some specific problems connected firstly with very complicated concept of Versa structures and secondly with the difficult task to increase the structural capacity to the required seismic level. (J.P.N.)}
place = {Japan}
year = {1997}
month = {Mar}
}