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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 102
Edited by: B.H.V. Topping and P. Iványi
Paper 91

Earthquake Damage Indicators for Nuclear Power Plants

T.J. Katona1 and L. Tóth2,3

1MVM Nuclear Power Plant Paks Ltd., Paks, Hungary
2Institute of Geodesy and Geophysics
Research Centre for Astronomy and Earth Sciences
Hungarian Academy of Sciences, Budapest, Hungary
3GeoRisk Earthquake Engineering Ltd, Budapest, Hungary

Full Bibliographic Reference for this paper
T.J. Katona, L. Tóth, "Earthquake Damage Indicators for Nuclear Power Plants", in B.H.V. Topping, P. Iványi, (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 91, 2013. doi:10.4203/ccp.102.91
Keywords: nuclear power plant, instrumental intensity, cumulative absolute velocity, peak ground acceleration, response spectra, earthquake damage, damage indicator, post-event assessment.

After an earthquake, the condition of systems, structures and equipment at nuclear power plants has to be assessed since this information is needed for accident management and to make decisions concerning the continuation of the operation. The damaging potential of the earthquake can be characterised by maximum horizontal acceleration of the ground motion, response spectra, cumulative absolute velocity and different instrumental intensity values. These quantities can be correlated to the earthquake characteristics, magnitude, distance, etc. Some of the indices are related to the damage mechanism and can be correlated to load-bearing features of the structures. Different indicators of the damaging potential of earthquakes are analysed in this paper from the point of view of applicability for post-event condition assessment at nuclear power plants and for use as criteria for the restart of operations.

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