Influence of Non-Uniform Movements and Soft Soil on Seismic Responses

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Abstract:

Relative responses can strongly determine damages of bridge structures, e.g. due to pounding and unseating of girders as observed in many major earthquakes in the past. In the investigations often uniform ground excitation and pounding at only one location are considered. Studies on the influence of spatially varying ground excitation on bridge responses are still very limited, and they are restricted to flat ground-surface condition. Influence of multi-sided pounding is also not much investigated. If the impediment effect of abutments is considered at all, so far fixed-base movements are assumed. The consequence of non-uniform movement and pier-support movements for the force development in bridge structures is not investigated yet. It is the subject of our current study.

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2419-2422

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May 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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