Topographic gradient based site characterization in India complemented by strong ground-motion spectral attributes

Handle URI:
http://hdl.handle.net/10754/563122
Title:
Topographic gradient based site characterization in India complemented by strong ground-motion spectral attributes
Authors:
Nath, Sankar Kumar; Thingbaijam, Kiran Kumar ( 0000-0002-2415-2266 ) ; Adhikari, M. D.; Nayak, Avinash; Devaraj, N.; Ghosh, Soumalya K.; Mahajan, Arun K.
Abstract:
We appraise topographic-gradient approach for site classification that employs correlations between 30. m column averaged shear-wave velocity and topographic gradients. Assessments based on site classifications reported from cities across India indicate that the approach is reasonably viable at regional level. Additionally, we experiment three techniques for site classification based on strong ground-motion recordings, namely Horizontal-to-Vertical Spectral Ratio (HVSR), Response Spectra Shape (RSS), and Horizontal-to-Vertical Response Spectral Ratio (HVRSR) at the strong motion stations located across the Himalayas and northeast India. Statistical tests on the results indicate that these three techniques broadly differentiate soil and rock sites while RSS and HVRSR yield better signatures. The results also support the implemented site classification in the light of strong ground-motion spectral attributes observed in different parts of the globe. © 2013 Elsevier Ltd.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Publisher:
Elsevier BV
Journal:
Soil Dynamics and Earthquake Engineering
Issue Date:
Dec-2013
DOI:
10.1016/j.soildyn.2013.09.005
Type:
Article
ISSN:
02677261
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorNath, Sankar Kumaren
dc.contributor.authorThingbaijam, Kiran Kumaren
dc.contributor.authorAdhikari, M. D.en
dc.contributor.authorNayak, Avinashen
dc.contributor.authorDevaraj, N.en
dc.contributor.authorGhosh, Soumalya K.en
dc.contributor.authorMahajan, Arun K.en
dc.date.accessioned2015-08-03T11:36:17Zen
dc.date.available2015-08-03T11:36:17Zen
dc.date.issued2013-12en
dc.identifier.issn02677261en
dc.identifier.doi10.1016/j.soildyn.2013.09.005en
dc.identifier.urihttp://hdl.handle.net/10754/563122en
dc.description.abstractWe appraise topographic-gradient approach for site classification that employs correlations between 30. m column averaged shear-wave velocity and topographic gradients. Assessments based on site classifications reported from cities across India indicate that the approach is reasonably viable at regional level. Additionally, we experiment three techniques for site classification based on strong ground-motion recordings, namely Horizontal-to-Vertical Spectral Ratio (HVSR), Response Spectra Shape (RSS), and Horizontal-to-Vertical Response Spectral Ratio (HVRSR) at the strong motion stations located across the Himalayas and northeast India. Statistical tests on the results indicate that these three techniques broadly differentiate soil and rock sites while RSS and HVRSR yield better signatures. The results also support the implemented site classification in the light of strong ground-motion spectral attributes observed in different parts of the globe. © 2013 Elsevier Ltd.en
dc.publisherElsevier BVen
dc.subjectHorizontal-to-Vertical Response Spectral Ratioen
dc.subjectHorizontal-to-Vertical Spectral Ratioen
dc.subjectIndiaen
dc.subjectResponse spectra shapeen
dc.subjectSite classificationen
dc.subjectTopographic gradienten
dc.titleTopographic gradient based site characterization in India complemented by strong ground-motion spectral attributesen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalSoil Dynamics and Earthquake Engineeringen
dc.contributor.institutionDepartment of Geology Geophysics, Indian Institute of Technology Kharagpur, Indiaen
dc.contributor.institutionSchool of Information Technology, Indian Institute of Technology Kharagpur, Indiaen
dc.contributor.institutionWadia Institute of Himalayan Geology, Dehradun, Indiaen
kaust.authorThingbaijam, Kiran Kumaren
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