Earthquakes and Structures

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Proposed dynamic p-y curves on a single pile considering shear wave velocity of soil

  • Song, Sumin (Department of Civil and Environmental Engineering, Yonsei University) ;
  • Lim, Hyunsung (Hanwha Engineering and Construction) ;
  • Park, Seongyong (Hanwha Engineering and Construction) ;
  • Jeong, Sangseom (Department of Civil and Environmental Engineering, Yonsei University)
  • Received : 2022.01.13
  • Accepted : 2022.10.17
  • Published : 2022.10.25
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Abstract

The dynamic behavior of a single pile was investigated by using analytical and numerical studies. The focus of this study was to develop the dynamic p-y curve of a pile for pseudo-static analysis considering the shear wave velocity of the soil by using three-dimensional numerical analyses. Numerical analyses were conducted for a single pile in dry sand under changing conditions such as the shear wave velocity of the soil and the acceleration amplitudes. The proposed dynamic p-y curve is a shape of hyperbolic function that was developed to take into account the influence of the shear wave velocity of soil. The applicability of pseudo-static analysis using the proposed dynamic p-y curve shows good agreement with the general trends observed by dynamic analysis. Therefore, the proposed dynamic p-y curve represents practical improvements for the seismic design of piles.

Keywords

Acknowledgement

This work was supported by the Basic Science Research Program through the National Research Fund of Korea (NRF) funded by the Ministry of Education (No. 2018R1A6A1A08025348) and the Ministry of Land, Infrastructure and Transport (Grant No. 21TBIP-C160725-01) of the Republic of Korea.

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