Investigation of site properties in Adapazari, Turkey, using microtremors and surface waves

Basit Öğe Kaydı
dc.authorid0000-0002-5134-0625en_US
dc.contributor.authorSilahtar, Ali
dc.contributor.authorBudakoglu, Emrah
dc.contributor.authorHorasan, Gunduz
dc.contributor.authorYıldırım, Eray
dc.contributor.authorKuyuk, H. Serdar
dc.contributor.authorYavuz, Evrim
dc.date.accessioned2021-03-20T20:14:25Z
dc.date.available2021-03-20T20:14:25Z
dc.date.issued2016
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, İnşaat Mühendisliği Bölümüen_US
dc.description.abstractDetermination of suitable areas for new residential buildings is crucial to increase the resilience of buildings against earthquake hazards. After the 1999 Izmit earthquake M-w 7.4, the city of Sakarya has been expanding rapidly in terms of both the population and number of superstructures. Despite the fact that Sakarya suffered several large earthquakes in the last two decades, the geophysical properties of the region have not been adequately investigated. In this study, the site properties of Sakarya University, Esentepe Campus, and its surrounding Serdivan district, which is one of the important parts of the city, are determined using microtremor measurements and surface wave analysis. Nakamura's spectral ratio method (spectral ratio between the horizontal and vertical components, H/V or HVSR) was used to determine the fundamental frequency and site amplification values. The shear wave velocity profiles of the studied sites were determined using the multichannel analysis of surface waves method. Seismic measurements were performed at 34 locations to record the surface waves in the area. The fundamental frequency and site amplification values are determined as 1.02-11.68 and 1.33-5.96 Hz, respectively, from the microtremor measurements. The fundamental frequency is between 4.0 and 11.5 Hz in the campus area and between 1.3 and 2.0 Hz near the D-100 intercity highway. The site amplification was determined to be 1-2.5 in the campus area. The greatest site amplification (6) is obtained at thick alluvium deposits in the valley between hills. The average shear wave velocity values are within the range of 300 and 1120 m/s. Some parts located on the hill area have better soil condition (B) categories, according to the National Earthquake Hazard Reduction Program, and have comparatively high shear wave velocities in the range of 740-1080 m/s, whereas low velocity values are found at the thick alluvium deposits (D). We found that the geological properties and topographies play very important roles on the shear wave velocity and the amplification factors in the investigated area.en_US
dc.description.sponsorshipSakarya University Research FundSakarya University [2010-01-14-004]en_US
dc.description.sponsorshipThis study was partly supported by the Sakarya University Research Fund (Project Number: 2010-01-14-004). We thank the Geophysical Engineering students at Sakarya University for their valuable support. We also thank the anonymous reviewers for their constructive reviews and suggestions.en_US
dc.identifier.doi10.1007/s12665-016-6151-yen_US
dc.identifier.issn1866-6280
dc.identifier.issn1866-6299
dc.identifier.issue20en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttp://doi.org/10.1007/s12665-016-6151-y
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1049
dc.identifier.volume75en_US
dc.identifier.wosWOS:000386578200017en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorYıldırım, Eray
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofEnvironmental Earth Sciencesen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMicrotremoren_US
dc.subjectSurface wavesen_US
dc.subjectV(s)30en_US
dc.subjectAdapazarien_US
dc.titleInvestigation of site properties in Adapazari, Turkey, using microtremors and surface wavesen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
İnşaat Mühendisliği Bölümü Yayın Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu