Abstract
In the current study, a coupled acoustic-structural-soil finite element modelling is used for the seismic assessment of gravity quay-wall structures under near-field excitations. Plane strain elements are used for the wall structure and the neighboring soils. Potential based fluid elements are employed for the seawater modelling. Different types of wave absorption and reflection conditions are presented to the fluid's boundaries. FSI boundary conditions are considered between the seawater interfaces with the quay-wall. Frictional contact elements are employed between the wall/soil interfaces. The numerical model has been validated against field measurements for the permanent drifts for a quaywall located at Kobe Port in Japan. An incremental dynamic analysis approach (IDA) has been used to identify the significance of far and near-field excitations on the non linear response of the structure. In general, at least for models examined in the current study, it is found that the gravity quay-walls are more vulnerable to near-field, in comparison to the corresponding far-field, earthquakes.
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