D

Publish and Present

520750 - Seismic Performance of Pile-Supported Piers and Wharves Subjected to Foundation Deformations

Primary Author(s)

• 

  Arash Khosravifar, PhD, P.E., M.ASCE

  Assistant Professor
  Portland State University
  Portland, Oregon

Presenting Author(s)

• MS

  Milad Souri

  Graduate Student Researcher
  Portland State University
  Portland, Oregon

Additional Author(s)

• SD

  Stephen Dickenson, PhD, P.E., D.P.E., M.ASCE

  Geotechnical Engineer
  New Albion Geotechnical, Inc.
• SS

  Scott Schlechter, P.E., G.E., D.P.E., M.ASCE

  Principal
  GRI
• NM

  Nason McCullough, PhD, P.E., G.E., M.ASCE

  Principal Geotechnical Engineer
  Jacobs

The interaction of inertial and kinematic demands is investigated using data from five physical models of pile-supported wharves using a large-scale geotechnical centrifuge. The wharf structures in this study were subjected to a suite of recorded ground motions, therefore associated superstructure inertia, and earthquake-induced slope deformations of varying magnitudes. The observations from these tests were used to provide insights on how to estimate large bending moments that developed at pile head and at depths significantly below a commonly assumed point of fixity that are associated with deep-seated ground deformations. Design recommendations are proposed on how to combine inertia and kinematic demands in a manner that is representative of the global structure.