PGA estimates for deep soils atop deep geological sediments-An example of Osijek, Croatia(Article)
- aFaculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, Novi Sad, 21000, Serbia
- bFaculty of Civil Engineering and Architecture Osijek, Josip Juraj Strossmayer University of Osijek, Vladimira Preloga 3, Osijek, 31000, Croatia
Abstract
In this study, the city of Osijek is used as a case study area for low to medium seismicity regions with deep soil over deep geological deposits to determine horizontal PGA values. For this reason, we propose new regional attenuation equations for PGA that can simultaneously capture the effects of deep geology and local soil conditions. A micro-zoning map for the city of Osijek is constructed using the derived empirical scaling equations and compared to all prior seismic hazard estimates for the same area. The findings suggest that the deep soil atop deep geological sediments results in PGA values that are only 6 percent larger than those reported at rock soil sites atop geological rocks. Given the rarity of ground motion records for deep soils atop deep geological layers around the world, we believe this case study is a start toward defining more reliable PGA estimates for similar areas. © 2022 Techno-Press, Ltd.
Indexed keywords
| Engineering controlled terms: | GeologyMapsSoils |
|---|---|
| Engineering uncontrolled terms | Attenuation equationCase-studiesCroatiaDeep geological sedimentDeep soilsGeological depositsHorizontalMicrozoningPGAStudy areas |
| Engineering main heading: | Sediments |
- ISSN: 2005307X
- Source Type: Journal
- Original language: English
- DOI: 10.12989/gae.2022.30.3.233
- Document Type: Article
- Publisher: Techno-Press
Bulajić, B.Đ.; Faculty of Technical Sciences, University of Novi Sad, Trg Dositeja Obradovića 6, Novi Sad, Serbia;
© Copyright 2022 Elsevier B.V., All rights reserved.
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