"PLAXIS 3D Dynamics was successfully applied as a tool in performance based seismic design of a Jetty. "
"A systematic approach was followed in which soil-structure interaction and soil dynamics are verified by simple methods. This approach can also be applied to other offshore and civil structures"
The importance of soil structure interaction in seismic design of structures is recognized by the seismic design community, which is strongly moving towards performance based design principles. Particularly for structures with deep foundations in soft soil conditions, soil-structure interaction is a key factor that has to be considered in design. Jetty structures are, like many other port and offshore structures, at the interface of structural and geotechnical engineering. Traditionally the structural engineering community has relied on pseudo-static response spectrum or linear dynamic modal techniques for seismic design. Accuracy assessment of these techniques has been considering regular multi storey buildings with a fixed base. For geotechnical structures (i.e. jetties, quay walls) however these techniques are less common and their performance is less clear.
During his master thesis at TU Delft, executed for Witteveen+Bos, Floris Besseling Msc researched how Plaxis can efficiently be applied as a tool in seismic soil-structure interaction problems. This movie illustrates how to perform a coupled dynamic analysis of a Jetty type structure.
Software: PLAXIS 3D 2010
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