Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Surface topography and site stratigraphy effects on the seismic response of a slope in the Achaia-Ilia (Greece) 2008 Mw6.4 earthquake
AbstractFollowing an overview of the state of knowledge on the effects of slope topography on the seismic ground response, the results of numerical analyses of the response of a 28° slope, with a height of 24m, located in the meizoseismal area of the Achaia-Ilia (Greece) 2008Mw6.4 earthquake, are presented. The 2-D and 1-D FEM equivalent-linear analyses were based on the results of an extensive geotechnical investigation and on input motions estimated on the basis of recorded acceleration time histories in the broader area of the slope. The results of analyses were (a) found to be in a good agreement with the observed distribution of structural damages in the area of the town, (b) used to separate the effects of pure topography from the effects of soil stratigraphy, and (c) used to check the validity of a simplified prediction of topography effects, by superimposing the decoupled 1-D and 2-D amplification of motions.
HighlightsConcentration of damaged buildings in the vicinity of the crest of K. Achaia slope.SASW measurements were used effectively for characterizing local soil conditions.1-D & 2-D Equivalent Linear response analyses.Topographic amplification of ground motion (Horizontal & Vertical).Simplified Prediction of Topography Effects tends to be un-conservative.
Surface topography and site stratigraphy effects on the seismic response of a slope in the Achaia-Ilia (Greece) 2008 Mw6.4 earthquake
AbstractFollowing an overview of the state of knowledge on the effects of slope topography on the seismic ground response, the results of numerical analyses of the response of a 28° slope, with a height of 24m, located in the meizoseismal area of the Achaia-Ilia (Greece) 2008Mw6.4 earthquake, are presented. The 2-D and 1-D FEM equivalent-linear analyses were based on the results of an extensive geotechnical investigation and on input motions estimated on the basis of recorded acceleration time histories in the broader area of the slope. The results of analyses were (a) found to be in a good agreement with the observed distribution of structural damages in the area of the town, (b) used to separate the effects of pure topography from the effects of soil stratigraphy, and (c) used to check the validity of a simplified prediction of topography effects, by superimposing the decoupled 1-D and 2-D amplification of motions.
HighlightsConcentration of damaged buildings in the vicinity of the crest of K. Achaia slope.SASW measurements were used effectively for characterizing local soil conditions.1-D & 2-D Equivalent Linear response analyses.Topographic amplification of ground motion (Horizontal & Vertical).Simplified Prediction of Topography Effects tends to be un-conservative.
Surface topography and site stratigraphy effects on the seismic response of a slope in the Achaia-Ilia (Greece) 2008 Mw6.4 earthquake
Pelekis, Panagiotis (Autor:in) / Batilas, Anastasios (Autor:in) / Pefani, Eleni (Autor:in) / Vlachakis, Vasileios (Autor:in) / Athanasopoulos, George (Autor:in)
Soil Dynamics and Earthquake Engineering ; 100 ; 538-554
31.05.2017
17 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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