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Failure Process of Open Piled Wharf with Coupled Raking Piles

Publication year Port and Airport Research Institute Technical Note 1049 2003.06
Author(s) Hiroshi YOKOTA,Mitsuyasu IWANAMI,Kentarou TSUIJI,Yuzuru INOUE
Department
/Divison
Geotechnical and Structural Engineering Department Structural Mechanics Division
Executive Summary

 This paper presents the structural behavior of an open piled wharf with coupled raking piles subjected to reversed cyclic loads. Experimental test was undertaken for three scaled wharf models to investigate load carrying capacity, ductility, and the process to overall failure. The raking piles carried applied loads by axial forces at first. Then flexural moments became dominant after the raking piles lost their capacities to carry axial forces. The rotational movements at the joint of the compressive piles and deck became large when cracks occurred in the deck. The curvature at the head of raking piles was larger than that of vertical piles because the axial force was dominant in the raking piles.
 Nonlinear analysis was carried out based on the above experiment results. Although analysis in consideration of the rotation movements at the joints was performed, the experiment result was not well simulated. As a result of further analysis, it was concluded that the joint should be well modeled with the local damage at the joint of the raking piles and deck.

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