[1]LI Yurun,YANG Haotian,LIANG Yan,et al.Comparative Analysis of Pile-soil Dynamic Response Test and Numerical Simulation Based on OpenSees[J].Journal of Seismological Research,2020,43(03):546-553.
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Comparative Analysis of Pile-soil Dynamic Response Test and Numerical Simulation Based on OpenSees

Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume: 43 Number of periods: 2020 03 Page number: 546-553 Column: Public date: 2020-09-14
Title:
Comparative Analysis of Pile-soil Dynamic Response Test and Numerical Simulation Based on OpenSees
Author(s):
LI Yurun1; YANG Haotian1; LIANG Yan2; ZHAO Qingshan3
(1.School of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401,China)(2.Campus Construction and Management,Hebei University of Technology,Tianjin 300401,China)(3.Hebei Tuowei Engineering Design Company Limited,Langfang 065000,Hebei,China)
Keywords:
the OpenSees finite element software;  straight and inclined group piles;  dynamic response;  pore water pressure;  numerical simulation
CLC:
TU411
DOI:
-
Abstract:
The interaction between pile and soil under seismic action has always been a hot topics in the seismic research of geotechnical engineering.Based on vibration Tab.test of 2×2 straight and inclined group piles,the OpenSees finite element software is used to compare and analyze the dynamic response of straight and inclined group piles under different frequency sine wave input in this paper.The results show that under the action of sine wave,the displacement and acceleration of the pile caps are amplified in both the straight and the inclined group piles.With the increase of the frequency of input sine wave,magnification times of the displacement and acceleration show an increasing trend,and the magnification times of the pile cap under the condition of straight group piles is greater than that of the inclined group piles.With the input of sine wave,the liquefaction velocity of soil samples is positively correlated with the frequency of input sinusoidal wave during the vibration process of straight and inclined group piles in nonliquefied sand and saturated sand.The result of numerical simulation by OpenSees is in good agreement with the result of shaking Tab.test,which verifies the correctness of the numerical model of dynamic response of straight and inclined group piles in liquefied soil.
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