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Quantitative archaeoseismological study of a Roman mausoleum in Pinara (Turkey); testing seismogenic and rockfall damage scenarios

Klaus G. Hinzen, Helen Kehmeier and Stephan Schreiber
Quantitative archaeoseismological study of a Roman mausoleum in Pinara (Turkey); testing seismogenic and rockfall damage scenarios
Bulletin of the Seismological Society of America (April 2013) 103 (2A): 1008-1021

Abstract

A Roman mausoleum located in the ancient city of Pinara, southwest Turkey, shows traces of strong dynamic forces. Considering the seismotectonic potential of the area, earthquake ground motions are a potential cause of damage. On the other hand, the mausoleum is located at the foot of an almost 100-m-high steep cliff imposing rockfall hazard to the building. We constructed a 3D model of the mausoleum based on 90 million points from nine laser scans. From this model the shape and size of the construction was measured and the displacements of all visible block vertices have been derived. Based on the 3D model and examples of similar structures a fully reconstructed virtual discrete-element model of the mausoleum with 180 individual blocks was constructed. This model was exposed to earthquake ground motions and the impact of falling rocks. The impact velocity of the latter was estimated with a site-specific rockfall model. The earthquake ground motion was estimated from local earthquake scenarios and quantified with 3D synthetic strong-motion seismograms. In addition, analytic ground-motion signals were used to study the general dynamic behavior of the mausoleum and the vulnerability of its columns. Comparison of the in situ measured block displacements and the damage pattern with the results of the rockfall and earthquake models clearly favor coseismic displacement as the cause of the damage. A local earthquake with moment magnitude 6.3 is sufficient to produce the observed damage.


ISSN: 0037-1106
EISSN: 1943-3573
Coden: BSSAAP
Serial Title: Bulletin of the Seismological Society of America
Serial Volume: 103
Serial Issue: 2A
Title: Quantitative archaeoseismological study of a Roman mausoleum in Pinara (Turkey); testing seismogenic and rockfall damage scenarios
Affiliation: University of Cologne, Institute for Geology and Mineralogy, Earthquake Geology and Archaeoseismology, Bergisch Gladbach, Germany
Pages: 1008-1021
Published: 201304
Text Language: English
Publisher: Seismological Society of America, Berkeley, CA, United States
References: 35
Accession Number: 2013-035188
Categories: Quaternary geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 3 tables, geol. sketch maps
N36°30'00" - N36°30'00", E29°15'00" - E29°15'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Seismological Society of America. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201322
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