Development of a seismic evaluation system (SES) for HANARO

HANARO is a multi-purpose research reactor with a thermal power of 30 MW. Systems and structures related to the safety of the HANARO are classified as a seismic category I. When an earthquake occurs, it is necessary to take prompt action to obtain the seismic response information of the reactor building and the safety related systems of the HANARO. A Seismic Evaluation System(SES) has been newly developed to evaluate promptly the seismic safety of the reactor building and the safety related systems of the HANARO. After an earthquake, using the seismic signal obtained from the field sensors, the SES can perform a 3-D seismic analysis of the reactor building and a local analysis of the safety related systems in the HANARO building. In addition, the SES has the capability of a graphical monitoring and document reporting of these seismic analysis and safety evaluation results. The SES is used in the HANARO for the safety evaluation and analysis of an earthquake. (authors)