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Importance of Soil-Bridge Interaction Modelling in Seismic Analysis of Seismic Isolated Bridges
Date
2004-08-01
Author
Dicleli, Murat
Mansour, Mohamad
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The effect of soil-structure interaction on the seismic performance of seismic-isolated bridges is studied. For this purpose, two typical seismically isolated bridges are selected. The selected bridges have distinct features to represent those bridges with (i) heavy superstructure and light substructure and (ii) light superstructure and heavy substructure. Detailed structural models of both bridges excluding and including the soil-structure interaction effects are first constructed. Iterative multi-mode response spectrum analyses of the bridges are then conducted considering the nonlinear behavior of the isolation bearings. The analyses results have revealed that soil-structure interaction effects may be neglected in the seismic analysis of seismic-isolated bridges with heavy superstructure and light substructure constructed on stiff soil. However, the soil-structure interaction effects need to be considered for bridges with light superstructure and heavy substructures regardless of the stiffness of the foundation soil. In soft soil conditions, soil structure interaction effects need to be considered regardless of the bridge type.
URI
https://hdl.handle.net/11511/84119
Conference Name
13th World Conference on Earthquake Engineering (2004)
Collections
Department of Engineering Sciences, Conference / Seminar
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M. Dicleli and M. Mansour, “Importance of Soil-Bridge Interaction Modelling in Seismic Analysis of Seismic Isolated Bridges,” presented at the 13th World Conference on Earthquake Engineering (2004), Vancouver, Canada, 2004, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84119.