File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Deterministic seismic hazard parameters and engineering risk implications for the Hong Kong region

TitleDeterministic seismic hazard parameters and engineering risk implications for the Hong Kong region
Authors
KeywordsDeterministic
Engineering
Ground
Hazard
Motion
Risk
Seismic
Issue Date2001
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaes
Citation
Journal Of Asian Earth Sciences, 2001, v. 20 n. 1, p. 59-72 How to Cite?
AbstractThe paper reviews and compares recent regional studies evaluating the seismic hazard parameters required to assess the seismic risk to engineering construction in the Coastal Region of South China (CRSC) including Hong Kong (HK). The review establishes that the CRSC, and in particular the offshore seismic belt, has mean earthquake magnitude recurrence intervals (MRIs) or return periods that are 2-3 times shorter than those in the eastern United States (EUS), with which the HK region has been compared. An ensemble of realistic design-level earthquake events suitable for defining the regional seismic hazard and for undertaking engineering risk assessment is then formulated, in the form of deterministic magnitude-distance pairs associated with earthquake magnitudes having a range of MRIs, and the significance of the maximum credible earthquake (MCE) magnitude is highlighted. Next, the scenario earthquake events have been used to predict the expected levels of peak design ground motions (for bedrock) in the HK region. The approximate method proposed here indicates that peak (effective) ground accelerations may reasonably be estimated to be around 10% g for 500-year earthquake events and 15-20% g for 1000-year events. However, the predicted ground motions arising from design-level earthquake events indicate large uncertainties arising from the attenuation equations. The uncertainties arise from both epistemic (event-to-event) and aleatory (site-to-site) considerations. These uncertainties represent the greatest source of errors in defining the seismic hazard for engineering design purposes. Further research is required to define the attenuation characteristics of ground motions for the CRSC, across a range of parameters including ground displacement and velocity as well as acceleration. It is further found that the Chinese earthquake building code gives a reasonably conservative estimate of seismic demand for the region, and is quite consistent with results from both probabilistic and pseudo-probabilistic seismic hazard analysis carried out herein, and by other researchers over the past 7 years. Finally, a discussion is presented of some key issues related to earthquake-resistant design and performance in Hong Kong, including the necessity to consider a range of design-level events with different MRIs when implementing acceptable structural design for earthquake effects. © 2001 Elsevier Science Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/151068
ISSN
2015 Impact Factor: 2.647
2015 SCImago Journal Rankings: 1.393
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorChandler, AMen_US
dc.contributor.authorChan, LSen_US
dc.contributor.authorLam, NTKen_US
dc.date.accessioned2012-06-26T06:16:43Z-
dc.date.available2012-06-26T06:16:43Z-
dc.date.issued2001en_US
dc.identifier.citationJournal Of Asian Earth Sciences, 2001, v. 20 n. 1, p. 59-72en_US
dc.identifier.issn1367-9120en_US
dc.identifier.urihttp://hdl.handle.net/10722/151068-
dc.description.abstractThe paper reviews and compares recent regional studies evaluating the seismic hazard parameters required to assess the seismic risk to engineering construction in the Coastal Region of South China (CRSC) including Hong Kong (HK). The review establishes that the CRSC, and in particular the offshore seismic belt, has mean earthquake magnitude recurrence intervals (MRIs) or return periods that are 2-3 times shorter than those in the eastern United States (EUS), with which the HK region has been compared. An ensemble of realistic design-level earthquake events suitable for defining the regional seismic hazard and for undertaking engineering risk assessment is then formulated, in the form of deterministic magnitude-distance pairs associated with earthquake magnitudes having a range of MRIs, and the significance of the maximum credible earthquake (MCE) magnitude is highlighted. Next, the scenario earthquake events have been used to predict the expected levels of peak design ground motions (for bedrock) in the HK region. The approximate method proposed here indicates that peak (effective) ground accelerations may reasonably be estimated to be around 10% g for 500-year earthquake events and 15-20% g for 1000-year events. However, the predicted ground motions arising from design-level earthquake events indicate large uncertainties arising from the attenuation equations. The uncertainties arise from both epistemic (event-to-event) and aleatory (site-to-site) considerations. These uncertainties represent the greatest source of errors in defining the seismic hazard for engineering design purposes. Further research is required to define the attenuation characteristics of ground motions for the CRSC, across a range of parameters including ground displacement and velocity as well as acceleration. It is further found that the Chinese earthquake building code gives a reasonably conservative estimate of seismic demand for the region, and is quite consistent with results from both probabilistic and pseudo-probabilistic seismic hazard analysis carried out herein, and by other researchers over the past 7 years. Finally, a discussion is presented of some key issues related to earthquake-resistant design and performance in Hong Kong, including the necessity to consider a range of design-level events with different MRIs when implementing acceptable structural design for earthquake effects. © 2001 Elsevier Science Ltd. All rights reserved.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaesen_US
dc.relation.ispartofJournal of Asian Earth Sciencesen_US
dc.subjectDeterministicen_US
dc.subjectEngineeringen_US
dc.subjectGrounden_US
dc.subjectHazarden_US
dc.subjectMotionen_US
dc.subjectRisken_US
dc.subjectSeismicen_US
dc.titleDeterministic seismic hazard parameters and engineering risk implications for the Hong Kong regionen_US
dc.typeArticleen_US
dc.identifier.emailChan, LS:chanls@hku.hken_US
dc.identifier.authorityChan, LS=rp00665en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S1367-9120(01)00024-4en_US
dc.identifier.scopuseid_2-s2.0-0035192267en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035192267&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume20en_US
dc.identifier.issue1en_US
dc.identifier.spage59en_US
dc.identifier.epage72en_US
dc.identifier.isiWOS:000172354800005-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridChandler, AM=7102635839en_US
dc.identifier.scopusauthoridChan, LS=7403540528en_US
dc.identifier.scopusauthoridLam, NTK=7101750717en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats