Deep soil seismic hazard assessment: analyzing the impact of local site effects by stochastic site response analysis—a comparative approach
Incorporating local site effects into seismic hazard analysis, especially for deep soil sites, is crucial. This study describes probabilistic seismic hazard analysis (PSHA) incorporating site effects for a deep soil site in Pakistan. Bedrock hazard is assessed in FRISK88M using a rigorous logic tree...
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Veröffentlicht in: | Bulletin of engineering geology and the environment 2024-06, Vol.83 (6), p.237, Article 237 |
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creator | Ali, Muhammad Salman Saeed, Kashif Jianxun, Ma Dong, Luo Ali, Liaqat |
description | Incorporating local site effects into seismic hazard analysis, especially for deep soil sites, is crucial. This study describes probabilistic seismic hazard analysis (PSHA) incorporating site effects for a deep soil site in Pakistan. Bedrock hazard is assessed in FRISK88M using a rigorous logic tree. Equivalent linear site response analysis (SRA) is performed in STRATA and captured the soil variability properties via Monte Carlo simulations. We proposed a hybrid approach in this study which utilizes the outcomes of Random Vibration Theory (RVT) and multiple Time Histories (TH) approach to assess the site-specific amplifications. Incorporating site amplifications transforms rock ground motion models into site-specific then we performed soil PSHA in FRISK88M. The analysis revealed that RVT overpredicts (3–17%) while TH underpredict (1–6%) hazard as compared to the hybrid approach at all return periods. The hybrid approach proposed in this study provides an innovative, effective and reliable estimates. |
doi_str_mv | 10.1007/s10064-024-03720-y |
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This study describes probabilistic seismic hazard analysis (PSHA) incorporating site effects for a deep soil site in Pakistan. Bedrock hazard is assessed in FRISK88M using a rigorous logic tree. Equivalent linear site response analysis (SRA) is performed in STRATA and captured the soil variability properties via Monte Carlo simulations. We proposed a hybrid approach in this study which utilizes the outcomes of Random Vibration Theory (RVT) and multiple Time Histories (TH) approach to assess the site-specific amplifications. Incorporating site amplifications transforms rock ground motion models into site-specific then we performed soil PSHA in FRISK88M. The analysis revealed that RVT overpredicts (3–17%) while TH underpredict (1–6%) hazard as compared to the hybrid approach at all return periods. 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Saeed, Kashif ; Jianxun, Ma ; Dong, Luo ; Ali, Liaqat</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c298t-a64907b14f976fdadbb8ab2548767da80a6f443a480905c41df91dab1f1ce1183</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Amplification</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Earthquakes</topic><topic>Foundations</topic><topic>Geoecology/Natural Processes</topic><topic>Geoengineering</topic><topic>Geological hazards</topic><topic>Geotechnical Engineering & Applied Earth Sciences</topic><topic>Ground motion</topic><topic>Hazard assessment</topic><topic>Hydraulics</topic><topic>Impact analysis</topic><topic>Monte Carlo simulation</topic><topic>Nature Conservation</topic><topic>Original Paper</topic><topic>Random vibration</topic><topic>Response analysis</topic><topic>Seismic hazard</topic><topic>Soil</topic><topic>Soil properties</topic><topic>Soils</topic><topic>Vibration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ali, Muhammad Salman</creatorcontrib><creatorcontrib>Saeed, Kashif</creatorcontrib><creatorcontrib>Jianxun, Ma</creatorcontrib><creatorcontrib>Dong, Luo</creatorcontrib><creatorcontrib>Ali, Liaqat</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Bulletin of engineering geology and the environment</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ali, Muhammad Salman</au><au>Saeed, Kashif</au><au>Jianxun, Ma</au><au>Dong, Luo</au><au>Ali, Liaqat</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Deep soil seismic hazard assessment: analyzing the impact of local site effects by stochastic site response analysis—a comparative approach</atitle><jtitle>Bulletin of engineering geology and the environment</jtitle><stitle>Bull Eng Geol Environ</stitle><date>2024-06-01</date><risdate>2024</risdate><volume>83</volume><issue>6</issue><spage>237</spage><pages>237-</pages><artnum>237</artnum><issn>1435-9529</issn><eissn>1435-9537</eissn><abstract>Incorporating local site effects into seismic hazard analysis, especially for deep soil sites, is crucial. This study describes probabilistic seismic hazard analysis (PSHA) incorporating site effects for a deep soil site in Pakistan. Bedrock hazard is assessed in FRISK88M using a rigorous logic tree. Equivalent linear site response analysis (SRA) is performed in STRATA and captured the soil variability properties via Monte Carlo simulations. We proposed a hybrid approach in this study which utilizes the outcomes of Random Vibration Theory (RVT) and multiple Time Histories (TH) approach to assess the site-specific amplifications. Incorporating site amplifications transforms rock ground motion models into site-specific then we performed soil PSHA in FRISK88M. The analysis revealed that RVT overpredicts (3–17%) while TH underpredict (1–6%) hazard as compared to the hybrid approach at all return periods. 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subjects | Amplification Earth and Environmental Science Earth Sciences Earthquakes Foundations Geoecology/Natural Processes Geoengineering Geological hazards Geotechnical Engineering & Applied Earth Sciences Ground motion Hazard assessment Hydraulics Impact analysis Monte Carlo simulation Nature Conservation Original Paper Random vibration Response analysis Seismic hazard Soil Soil properties Soils Vibration |
title | Deep soil seismic hazard assessment: analyzing the impact of local site effects by stochastic site response analysis—a comparative approach |
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