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ASSESSMENNT OF LATEST MOST SERIOUS EARTHQUAKES IMPACT ON RILA MONASTERY HERITAGE SITE
Abstract
As a world heritage site Rila monastery is continuously monitored, including seismically, ensuring proper maintenance and preservation for future generations. Th? instrumental data is acquired by the monastery?s accelerograph stations that are local units of the National Strong Ground Motion (SGM) Network run by the NIGGG-BAN. Considering the seismic history of our lands, it is indispensable to assess periodically the characteristics of significant earthquake impacts on important sites as this one. The current seismic monitoring system of Rila monastery records earthquakes in the form of accelerograms. The latest decade most serious seismic attacks of 2012 and 2013 on the heritage site were recorded in the course of respective earthquake events. Then the selected raw data is initially processed, classified and put through homogeneous SGM data processing. The produced corrected accelerograms are analysed and subjected to derivative processing to obtain earthquake engineering relevant characteristics, followed by a process of assessment. The outcome is presented in adequate numerical and graphic layout. The results obtained are essential for earthquake/structural engineers and architects that are expected to keep and protect the integrity of the building structures on the site, preventing damages by applying advanced earthquake resistance design methods and relevant retrofit.
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References4
Simeonov S., Hadjiyski K., Botev E., On the seismic vulnerability of Pernik region (West Bulgaria), Proceedings of the 7-th Congress of Balkan Geophysical society, Albania, CD, art. N. 18667, ISBN 978-90-73834-55-2, ISSN 2214-4609, 2013.
Botev E., Babachkova B., Dimitrov B., Velichkova S., Tzoncheva I., Donkova K., Dimitrova S., Data and analysis of the seismic events recorded by NOTSSI in 2012. Bulg. Geophys. J., Vol. 30, 2013.
Hadjiyski K., Simeonov S., Botev E., The May 22, 2012 Mw = 5.6 Pernik Earthquake – Local Effects and Seismic Impact on Sofia city, International Conference SE-50EEE, May, 2013, Skopje, Macedonia, CD, art. N. 607. ISBN 978-608-65185-2-3.
Simeonov S., Hadjiyski K., Seismic monitoring of Rila Monastery, Special Reports for Ministry of Culture, Archives NIGGG, 2013.
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