TY - JOUR
T1 - Transient dynamic analysis of pile foundation responses due to ocean waves using the scaled boundary finite element method
AU - Li, Miao
AU - Guan, Hong
AU - Zhang, Hong
N1 - Includes bibliographical references.
PY - 2016/5
Y1 - 2016/5
N2 - In this study, a semi-analytical numerical method, the scaled boundary finite element method, is employed to investigate the time-dependent behaviour of pile foundations when subjected to ocean wave loads. Individual piles present steady-state vibrations at the same frequency as external waves considering the material damping effect. In the case with a group of two piles, the structural behaviour of pile foundations is a multivariable function of the wave properties and the spatial arrangement of piles, and each pile responses differently to various parameter combinations. The leading pile, which interacts with incoming waves earlier, normally experiences greater displacement amplitude than the subsequent pile. Both piles show relatively greater displacement in cases with large wave numbers. When the two piles are closely spaced or when the wave number is small, their responses tend to have phase difference and move towards different directions. This study is expected to shed light on the transient behaviour of pile foundations, when wave load is a dominant factor.
AB - In this study, a semi-analytical numerical method, the scaled boundary finite element method, is employed to investigate the time-dependent behaviour of pile foundations when subjected to ocean wave loads. Individual piles present steady-state vibrations at the same frequency as external waves considering the material damping effect. In the case with a group of two piles, the structural behaviour of pile foundations is a multivariable function of the wave properties and the spatial arrangement of piles, and each pile responses differently to various parameter combinations. The leading pile, which interacts with incoming waves earlier, normally experiences greater displacement amplitude than the subsequent pile. Both piles show relatively greater displacement in cases with large wave numbers. When the two piles are closely spaced or when the wave number is small, their responses tend to have phase difference and move towards different directions. This study is expected to shed light on the transient behaviour of pile foundations, when wave load is a dominant factor.
KW - Time-dependent responses
KW - Pile foundations
KW - Wave loads
KW - Scaled boundary finite element method
U2 - 10.1007/s40722-016-0047-5
DO - 10.1007/s40722-016-0047-5
M3 - Article
SN - 2198-6444
VL - 2
SP - 177
EP - 193
JO - Journal of Ocean Engineering and Marine Energy
JF - Journal of Ocean Engineering and Marine Energy
IS - 2
ER -