2021 Volume 77 Issue 2 Pages I_391-I_396
In this study, we focus on developing an economical seismic retrofit method for pile supported wharf and piled pier by retrofitting damping member between all the piles through the comparison on the shaking table test. The targeted wharf type had depth of 7.5 meters with three rows of steel pipe pile with L-shape block revetment and backfill soil case and without cases as piled pier type. The effect of the retrofitting damping member was to reduce the maximum displacement of the superstructure, bending moment of pile head and increase the damping constant. The improvement of the displacement reduction and damping constant was assumed that the energy absorption in damping member was larger for the piled pier, while the damping constant of pile supported wharf was increased by the relatively large overall displacement due to the displacement of the revetment.
