Impact of modelling assumptions for assessing the seismic response of twin bridges considering soil-strcuture-interaction in 3D space

A. G. Sextos*, P. Faraonis, E. I. Katsanos

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

The scope of this paper is to investigate the importance of various modelling assumptions on the overall seismic response of twin bridges (i.e. bridges constructed with two, almost identical branches) considering the coupling and dynamic interaction of the deck-abutment-backfill-embankment and superstructure-foundation-subsoil system, as well as different earthquake input scenarios, in terms of selected ground motion records. For this purpose, a real bridge already constructed in Greece is studied and a parametric analyses scheme is developed for different finite element models of increasing analysis complexity. It is shown that at least for the particular bridge studied, the most critical links in the chain of analysis reliability is the definition of a 'reasonable' earthquake scenario and the appropriate modelling of the abutment-embankment dynamic stiffness.

Original languageEnglish
Title of host publication9th US National and 10th Canadian Conference on Earthquake Engineering 2010
Subtitle of host publicationProceedings of a meeting held 25-29 July 2010, Toronto, Ontario, Canada. Including Papers from the 4th International Tsunami Symposium
PublisherEarthquake Engineering Research Institute
Pages3926-3935
Number of pages10
Volume5
ISBN (Print)9781617388446
Publication statusPublished - Oct 2010
Event9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium - Toronto, ON, United Kingdom
Duration: 25 Jul 201029 Jul 2010

Conference

Conference9th US National and 10th Canadian Conference on Earthquake Engineering 2010, Including Papers from the 4th International Tsunami Symposium
CountryUnited Kingdom
CityToronto, ON
Period25/07/1029/07/10

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