Seismic risk assessment of architectural heritages in Gyeongju considering local site effects

A seismic risk assessment is conducted for cultural heritage sites in Gyeongju, the capital of Korea's ancient Silla Kingdom. Gyeongju, home to UNESCO World Heritage sites, contains remarkable artifacts of Korean Buddhist art. An extensive geotechnical survey including a series of in situ tests...

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Main Authors: H.-J. Park, D.-S. Kim, D.-M. Kim
Format: Article
Language:English
Published: Copernicus Publications 2013-02-01
Series:Natural Hazards and Earth System Sciences
Online Access:http://www.nat-hazards-earth-syst-sci.net/13/251/2013/nhess-13-251-2013.pdf
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author H.-J. Park
D.-S. Kim
D.-M. Kim
author_facet H.-J. Park
D.-S. Kim
D.-M. Kim
author_sort H.-J. Park
collection DOAJ
description A seismic risk assessment is conducted for cultural heritage sites in Gyeongju, the capital of Korea's ancient Silla Kingdom. Gyeongju, home to UNESCO World Heritage sites, contains remarkable artifacts of Korean Buddhist art. An extensive geotechnical survey including a series of in situ tests is presented, providing pertinent soil profiles for site response analyses on thirty cultural heritage sites. After the shear wave velocity profiles and dynamic material properties were obtained, site response analyses were carried out at each historical site and the amplification characteristics, site period, and response spectrum of the site were determined for the earthquake levels of 2400 yr and 1000 yr return periods based on the Korean seismic hazard map. Response spectrum and corresponding site coefficients obtained from site response analyses considering geologic conditions differ significantly from the current Korean seismic code. This study confirms the importance of site-specific ground response analyses considering local geological conditions. Results are given in the form of the spatial distribution of bedrock depth, site period, and site amplification coefficients, which are particularly valuable in the context of a seismic vulnerability study. This study presents the potential amplification of hazard maps and provides primary data on the seismic risk assessment of each cultural heritage.
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spelling doaj.art-d1dcbbdb133147b28b42ba562cd84e082022-12-22T01:22:50ZengCopernicus PublicationsNatural Hazards and Earth System Sciences1561-86331684-99812013-02-0113225126210.5194/nhess-13-251-2013Seismic risk assessment of architectural heritages in Gyeongju considering local site effectsH.-J. ParkD.-S. KimD.-M. KimA seismic risk assessment is conducted for cultural heritage sites in Gyeongju, the capital of Korea's ancient Silla Kingdom. Gyeongju, home to UNESCO World Heritage sites, contains remarkable artifacts of Korean Buddhist art. An extensive geotechnical survey including a series of in situ tests is presented, providing pertinent soil profiles for site response analyses on thirty cultural heritage sites. After the shear wave velocity profiles and dynamic material properties were obtained, site response analyses were carried out at each historical site and the amplification characteristics, site period, and response spectrum of the site were determined for the earthquake levels of 2400 yr and 1000 yr return periods based on the Korean seismic hazard map. Response spectrum and corresponding site coefficients obtained from site response analyses considering geologic conditions differ significantly from the current Korean seismic code. This study confirms the importance of site-specific ground response analyses considering local geological conditions. Results are given in the form of the spatial distribution of bedrock depth, site period, and site amplification coefficients, which are particularly valuable in the context of a seismic vulnerability study. This study presents the potential amplification of hazard maps and provides primary data on the seismic risk assessment of each cultural heritage.http://www.nat-hazards-earth-syst-sci.net/13/251/2013/nhess-13-251-2013.pdf
spellingShingle H.-J. Park
D.-S. Kim
D.-M. Kim
Seismic risk assessment of architectural heritages in Gyeongju considering local site effects
Natural Hazards and Earth System Sciences
title Seismic risk assessment of architectural heritages in Gyeongju considering local site effects
title_full Seismic risk assessment of architectural heritages in Gyeongju considering local site effects
title_fullStr Seismic risk assessment of architectural heritages in Gyeongju considering local site effects
title_full_unstemmed Seismic risk assessment of architectural heritages in Gyeongju considering local site effects
title_short Seismic risk assessment of architectural heritages in Gyeongju considering local site effects
title_sort seismic risk assessment of architectural heritages in gyeongju considering local site effects
url http://www.nat-hazards-earth-syst-sci.net/13/251/2013/nhess-13-251-2013.pdf
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