Seismic Analysis And Design Of R/C Bridge Including SS1 Effects
Author(s)
A.J. Kappos, G.D. Manolis, I.F. Moschonas
Abstract
Seismic analysis and design of R/C bridge
including SSI effects
A.J. Kappos, G.D. Manolis and IF. Moschonas
Department of Civil Engineering, Aristotle University ofThessaloniki,
Greece
Abstract
This work investigates the soil-structure-interaction (SSI) phenomenon manifested
during the seismic response of a reinforced concrete (R/C) bridge. We focus on a
four-span highway bridge with piers of unequal height crossing a mountain valley.
The bridge and its foundation system are modelled by finite elements (FE) plus
the spring/dashpot/added mass discrete parameter system. A hierarchy of FE
meshes is developed, starting with shell elements and ending with linear elements.
Also, two basic types of foundations are examined, namely spread footings versus
pile groups. Following a preliminary design of the bridge, a series of time history
analyses of the combined deck-pier-foundation system are performed, the results
of which are used in assessing the role of the foundation's compliance. The
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