Imperial College London
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DrStavroulaKontoe

Faculty of Engineering, Department of Civil and Environmental Engineering

Visiting Reader
 
 
 
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Contact

 

+44 (0)20 7594 5996stavroula.kontoe Website

 
 
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Location

 

535Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Skiada:2017,
author = {Skiada, E and Kontoe, S and Stafford, P and Potts, D},
publisher = {ISSMGE},
title = {Ground motion amplification for canyon topographies with different input motions},
url = {http://hdl.handle.net/10044/1/48623},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - It is widelyknown that topographic irregularities influence the surfaceground motions, typically with anenhancement of the response close to convex topographic features,such as ridges and slope crests.  Several studies have investigatedthe  ground  motion at  the  surface  of  filled  valleys  and  empty  canyons,  focusingmainly onthe  geometry  and  the  soil characteristics  rather  than  the  input  excitation.Further  investigation  of  the  impact  of  the  input  excitation  to  the  ground surface response is needed in order to modifyexisting ground motion prediction models to account for topographic effects. The response of canyons has been previously examined; but mainly focusing on simple wavelet input. This paper considers a fully weathered canyon (i.e., without any in-fill material) aiming to investigate the influence of the input excitationon the surface ground motion through a parametric time-domain finite element (FE) study. A two-dimensional plane-strain model of an idealisedcanyon is considered for vertically propagating SV waves, using both wavelets and recorded earthquakes as input excitation. The model consists of two step-like slopes with slope height (H), in a homogeneous linear elastic soil layer overlying rigid bedrock. Topographic aggravation is presented for several points along the canyon ground surface aiming to derive a pattern of its distribution considering input excitation with different characteristics.
AU  - Skiada,E
AU  - Kontoe,S
AU  - Stafford,P
AU  - Potts,D
PB  - ISSMGE
PY  - 2017///
TI  - Ground motion amplification for canyon topographies with different input motions
UR  - http://hdl.handle.net/10044/1/48623
ER  -
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