Consideraciones para evaluar la amplificacion topografica en 3 dimensiones [Considerations to assess topographic amplification in three dimensions]
File(s)
Author(s)
Solans Roa, D
Pollak, D
Campana, J
Type
Conference Paper
Abstract
It is widely known that the destructive effect of seismic events can be strongly conditioned by the "local geotechnical context", which involves thicknesses of strata, rigidity of the soils present, depth of the bedrock and the conditions topography of the study area. This article presents the results of the analysis carried out to quantify the effect of topographic amplification, on the top of a hill of rock for different seismic records, verifying the significant increase in the accelerations recorded on slopes and peaks, compared to the valley area. The results obtained showed that there could be important variations in the magnitude of the amplification and main frequency of the seismic movement at the top of the hill, depending on the characteristics of the earthquake used and the predominant period of this, concluding that a bad selection of the earthquake could underestimate the response and designs associated with it. The earthquakes used correspond to two real records and one artificial record, which were scaled at the same acceleration in free field.
Date Issued
2012-09-26
Online Publication Date
2023-07-10T11:51:16Z
Date Acceptance
2012-07-01
Journal / Book Title
VII Chilean Geotechnical Conference
Copyright Statement
© 2012 The Author(s)
Source
VII Chilean Geotechnical Conference 2012
Publication Status
Published
Start Date
2012-09-26
Country
Concepcion, Chile