Supplementing VS30 with H/V Spectral Ratios for Predicting Site Effects
DC Field | Value | Language |
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dc.contributor.author | Kwak, Dong Youp | - |
dc.contributor.author | Stewart, Jonathan P. | - |
dc.contributor.author | Mandokhail, Saeed-ullah J. | - |
dc.contributor.author | Park, Duhee | - |
dc.date.accessioned | 2021-06-22T13:41:55Z | - |
dc.date.available | 2021-06-22T13:41:55Z | - |
dc.date.created | 2021-01-21 | - |
dc.date.issued | 2017-10 | - |
dc.identifier.issn | 0037-1106 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/8959 | - |
dc.description.abstract | Site amplification models using relatively simple site proxies (e.g., averaged shear-wave velocity and soil depth) do not capture site-specific resonance effects observed at soil sites having a high shear-wave velocity impedance contrast. We present a model to supplement ergodic site amplification equations to consider these effects (i.e., our model is additive to ergodic equations in a natural log sense). The model is conditional on properties of horizontal-to-vertical (H/V) spectral ratios recorded at the site of interest and consists of a frequency-domain pulse function parameterized by site period, pulse amplitude, and pulse width. H/V spectral ratio peaks are observed in 97% of sites in our data set. When no appreciable H/V spectral ratio peak is present, we provide a broadband adjustment to the ergodic model. Because H/V spectral ratios are typically measured under small-strain (effectively viscoelastic) conditions but applied in engineering practice for stronger shaking conditions, our model modifies site period for nonlinear site-response effects. The model adapts in an empirical manner H/V spectral ratio attributes measured from Fourier amplitude spectral ratios to horizontal response spectral amplification using a data set from Japan composed of sites having sufficient recordings to produce stable mean H/V spectral ratios. Compared to an ergodic model that does not consider H/V spectral ratios, application of the proposed model reduces natural log within-event standard deviation by an average of 0.04. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | SEISMOLOGICAL SOC AMER | - |
dc.subject | SHALLOW CRUSTAL EARTHQUAKES | - |
dc.subject | VALLEY DOWNHOLE ARRAY | - |
dc.subject | GROUND-MOTION | - |
dc.subject | RESPONSE SPECTRA | - |
dc.subject | HORIZONTAL COMPONENTS | - |
dc.subject | SOUTHERN CALIFORNIA | - |
dc.subject | AMPLIFICATION | - |
dc.subject | MICROTREMORS | - |
dc.subject | EQUATIONS | - |
dc.subject | PERIOD | - |
dc.title | Supplementing VS30 with H/V Spectral Ratios for Predicting Site Effects | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kwak, Dong Youp | - |
dc.identifier.doi | 10.1785/0120160353 | - |
dc.identifier.scopusid | 2-s2.0-85030867781 | - |
dc.identifier.wosid | 000412920500005 | - |
dc.identifier.bibliographicCitation | BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, v.107, no.5, pp.2028 - 2042 | - |
dc.relation.isPartOf | BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA | - |
dc.citation.title | BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA | - |
dc.citation.volume | 107 | - |
dc.citation.number | 5 | - |
dc.citation.startPage | 2028 | - |
dc.citation.endPage | 2042 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Geochemistry & Geophysics | - |
dc.relation.journalWebOfScienceCategory | Geochemistry & Geophysics | - |
dc.subject.keywordPlus | SHALLOW CRUSTAL EARTHQUAKES | - |
dc.subject.keywordPlus | VALLEY DOWNHOLE ARRAY | - |
dc.subject.keywordPlus | GROUND-MOTION | - |
dc.subject.keywordPlus | RESPONSE SPECTRA | - |
dc.subject.keywordPlus | HORIZONTAL COMPONENTS | - |
dc.subject.keywordPlus | SOUTHERN CALIFORNIA | - |
dc.subject.keywordPlus | AMPLIFICATION | - |
dc.subject.keywordPlus | MICROTREMORS | - |
dc.subject.keywordPlus | EQUATIONS | - |
dc.subject.keywordPlus | PERIOD | - |
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