Earthquakes and Structures

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Behavior of full-scale prestressed pile-deck connections for wharves under cyclic loading

  • Blandon, Carlos A. (Department of Civil Engineering, EIA University) ;
  • Krier, Christopher J. (NV5) ;
  • Restrepo, Jose I. (Department of Civil Engineering, University of California San Diego)
  • Received : 2018.04.20
  • Accepted : 2019.03.17
  • Published : 2019.04.25
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Abstract

The behavior of pile-deck connections of pile-supported marginal wharfs subjected to earthquake loading is of key importance to ensure a good performance of this type of structures. Two precast-pretensioned pile-deck connections used in the construction of pile-supported marginal wharfs were tested under cyclic loading. The first is a connection with simple reinforcement details and light steel ratio developed for use where moderate pile-deck rotation demands are expected in the wharf. The second is specifically developed to sustain the large rotation, shear force and bending moment demands, as required for the shortest piles in a marginal wharf. Data obtained from the test program is used in the paper to calibrate an equivalent plastic hinge length that can be incorporated into nonlinear analysis models of these structures when prestressed pile-deck connections with duct embedded dowels are used.

Keywords

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