Accumulated response of single batter pile under lateral cyclic loading in sand

被引：0

作者：

Zhao S. ^{[1
,2
]}

Wang K.-H. ^{[1
,2
]}

Wu J.-T. ^{[1
,2
]}

机构：

[1] Research Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou

[2] Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education, Zhejiang University, Hangzhou

来源：

Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2022年 / 56卷 / 07期

关键词：

accumulated deformation; lateral cyclic loading; prediction model; single batter pile;

D O I：

10.3785/j.issn.1008-973X.2022.07.006

中图分类号：

学科分类号：

摘要：

The accumulated responses of single batter pile under cyclic loadings (e.g., winds, waves and ocean current) were analyzed. The degradation stiffness model of sand was incorporated into the pile-soil finite element model through the user subroutine. The numerical analysis of cyclic loading characteristics of single pile was realized. Then the accumulated response of single batter pile under various load levels and cycle numbers was analyzed. Results show that the displacement at pile head and the bending moment of pile are gradually increased under lateral static loads when the batter angle changes from −25° to 25°. The accumulated speeds of the displacement at pile head and the maximum bending moment of pile are decreased under lateral cyclic loads. When the amplitude of the cyclic load is relatively large, the displacement at pile head and the depth of deformation region of the negative batter pile are both smaller than these of the vertical pile, while these of the positive batter pile are the greatest. Fitting analysis of the accumulated displacement at pile head and the maximum bending moment of single batter pile was conducted based on the numerical simulation results. The corresponding methods for predicting the accumulated responses of single batter piles were proposed. © 2022 Zhejiang University. All rights reserved.

引用

页码：1310 / 1319

页数：9

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