高级搜索
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊

考虑竖向荷载影响的大直径管桩水平振动响应解析解

栾鲁宝, 丁选明, 刘汉龙, 郑长杰

栾鲁宝, 丁选明, 刘汉龙, 郑长杰. 考虑竖向荷载影响的大直径管桩水平振动响应解析解[J]. 岩土工程学报, 2016, 38(10): 1859-1868. DOI: 10.11779/CJGE201610015
引用本文: 栾鲁宝, 丁选明, 刘汉龙, 郑长杰. 考虑竖向荷载影响的大直径管桩水平振动响应解析解[J]. 岩土工程学报, 2016, 38(10): 1859-1868. DOI: 10.11779/CJGE201610015
shu
LUAN Lu-bao, DING Xuan-ming, LIU Han-long, ZHENG Chang-jie. Analytical solution of lateral dynamic response of a large diameter pipe pile considering influence of axial load[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(10): 1859-1868. DOI: 10.11779/CJGE201610015
Citation: LUAN Lu-bao, DING Xuan-ming, LIU Han-long, ZHENG Chang-jie. Analytical solution of lateral dynamic response of a large diameter pipe pile considering influence of axial load[J]. Chinese Journal of Geotechnical Engineering, 2016, 38(10): 1859-1868. DOI: 10.11779/CJGE201610015
shu

考虑竖向荷载影响的大直径管桩水平振动响应解析解  English Version

  • 1. 山地城镇建设与新技术教育部重点实验室（重庆大学）,重庆400045；
    2. 河海大学土木与交通学院,江苏 南京 210098

基金项目: 国家自然科学基金项目（51378177,51622803,51420105013）
详细信息
    作者简介:

    栾鲁宝(1989- ),男,硕士研究生,主要从事桩基动力学方面的研究。E-mail: luanlub@163.com。

    通讯作者:

    丁选明，E-mail：dxmhhu@163.com

Analytical solution of lateral dynamic response of a large diameter pipe pile considering influence of axial load

  • 1. Laboratory of New Technology for Construction of Cities in Mountain Area (Chongqing University), Ministry of Education,Chongqing 400045, China;
    2. College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China

摘要

    摘要
  • 摘要: 建立了黏弹性地基中受轴力作用的现浇大直径管桩水平振动响应计算模型,通过引入势函数对土体振动方程进行解耦,结合桩土耦合条件求得了桩顶复阻抗解析表达式。将该解退化到不考虑竖向荷载的水平振动响应解与已有理论解对比,验证了该解的合理性。通过算例分析,研究了竖向荷载、激振频率和桩长对管桩桩顶水平复阻抗、桩身位移和内力的影响,研究结果表明：复阻抗实部和虚部在桩土系统固有频率处均发生共振;竖向荷载使管桩位移和内力发生重分布,竖向荷载为零时,位移、弯矩和剪力最大值均出现于管桩中上部,随着竖向荷载增大,其最大值均出现于桩底;桩身水平位移随频率变化而变化,管桩中下部转角、弯矩和剪力受频率影响较大;桩身中下部位移和内力受桩长影响大于桩身其他部分;无桩芯土时桩顶水平位移和转角比桩芯土存在时大。
    Abstract: The horizontal vibration model for a large diameter pipe pile subjected to axial load in viscoelastic soil is established. The potential functions are adopted to decouple the governing equations of the soil. Analytical solution of the impedance of the pipe pile is obtained based on the assumption of perfect contact between the pile and the soil. This analytical solution can be perfectly simplified to the horizontal vibration solution of pipe pile without axial load, which demonstrates the validity of the solution deduced in this study. Numerical examples are presented to analyze the influences of axial load, excitation frequencies, and pile lengths on the complex impedances, displacements and internal forces. The results show that the complex impedance resonates at the inherent frequency of the pile-soil system. The vertical loads cause the redistribution of the displacements and internal forces of the pipe pile. The maximum displacement, bending moment and shear stress are located at the upper part of the pile shaft when the vertical load is 0, however, they move to the pile bottom gradually with the increase of the vertical load. The horizontal displacement of the pipe pile varies with the frequency. The changes of rotation angle, bending moment and shear force are obvious at the lower part of the pile shaft. The influences of pile length on displacement and internal force at the middle and bottom parts of the pile are more significant than those in the other parts. The displacements located at the upper part of the pile shaft without inner soil are larger than those with inner soil.
    • HTML全文
    • 参考文献(21)
  • [1] NOVAK M. Dynamic stiffness and damping of piles[J]. Canadian Geotechnical Journal, 1974, 11(4): 574-598.
    [2] NOVAK M, ABOUL-ELLA F. Impedance functions of piles in layered media[J]. Journal of the Engineering Mechanics Division, 1978, 104(3): 643-661.
    [3] NOVAK M, NOGAMI T. Soil‐pile interaction in horizontal vibration[J]. Earthquake Engineering & Structural Dynamics, 1977, 5(3): 263-281.
    [4] NOGAMI T, NOVAK M. Resistance of soil to a horizontally vibrating pile[J]. Earthquake Engineering & Structural Dynamics, 1977, 5(3): 249-261.
    [5] DOYLE P F, PAVLOVIC M N. Vibration of beams on partial elastic foundations[J]. Earthquake Engineering & Structural Dynamics, 1982, 10(5): 663-674.
    [6] EISENBERGER M, YANKELEVSKY D Z, ADIN M A. Vibrations of beams fully or partially supported on elastic foundations[J]. Earthquake Engineering & Structural Dynamics, 1985, 13(5): 651-660.
    [7] GAZETAS G, DOBRY R. Horizontal response of piles in layered soils[J]. Journal of Geotechnical Engineering, ASCE, 1984, 110(1): 20-40.
    [8] 杨 军, 宋二祥, 陈肇元. 桩在饱和土中水平振动的辐射阻尼简化算法[J]. 岩土力学, 2002(2): 179-183. (YANG Jun, SONG Er-xiang, CHEN Zhao-yuan. Simple radiation damping model for horizontally vibrating pile in saturated soil[J]. Rock and Soil Mechanics, 2002(2): 179-183. (in Chinese))
    [9] 尚守平, 余 俊, 王海东, 等. 饱和土中桩水平振动分析[J]. 岩土工程学报, 2007, 29(11): 1696-1702. (SHANG Shou-ping, YU Jun, WANG Hai-dong, et al. Horizontal vibration of piles in saturated soil[J]. Chinese Journal of Geotechnical Engineering, 2007, 29(11): 1696-1702. (in Chinese))
    [10] 余 俊, 尚守平, 李 忠, 等. 饱和土中端承桩水平振动动力响应分析[J]. 岩土工程学报, 2009, 31(3): 408-415. (YU Jun, SHANG Shou-ping, LI Zhong, et al. Dynamical characteristics of an end bearing pile embedded in saturated soil under horizontal vibration[J]. Chinese Journal of Geotechnical Engineering, 2009, 31(3): 408-415. (in Chinese))
    [11] HALABE U B, JAIN S K. Lateral free vibration of a single pile with or without an axial load[J]. Journal of Sound and Vibration, 1996, 195(3): 531-544.
    [12] 周绪红, 蒋建国, 邹银生. 黏弹性介质中考虑轴力作用时桩的动力分析[J]. 土木工程学报, 2005, 38(2): 87-91. (ZHOU Xu-hong, JIANG Jian-guo, ZOU Yin-sheng. Dynamic analysis of piles under axial loading and lateral dynamic force in visco-elastic media[J]. Chinese Civil Engineering Journal, 2005, 38(2): 87-91. (in Chinese))
    [13] CATAL H H. Free vibration of partially supported piles with the effects of bending moment, axial and shear force[J]. Engineering Structures, 2002, 24(12): 1615-1622.
    [14] CATAL H H. Free vibration of semi-rigid connected and partially embedded piles with the effects of the bending moment, axial and shear force[J]. Engineering Structures, 2006, 28(14): 1911-1918.
    [15] LU J F, ZHANG X, WAN J W, et al. The influence of a fixed axial top load on the dynamic response of a single pile[J]. Computers and Geotechnics, 2012, 39: 54-65.
    [16] LIU H L, CHU J, DENG A. Use of large-diameter, cast-in situ concrete pipe piles for embankment over soft clay[J]. Canadian Geotechnical Journal, 2009, 46(8): 915-927.
    [17] LIU H L, NG C W W, FEI K. Performance of a geogrid-reinforced and pile-supported highway embankment over soft clay: case study[J]. Journal of Geotechnical and Geoenvironmental Engineering, 2007, 133(12): 1483-1493.
    [18] XU X T, LIU H L, LEHANE B M. Pipe pile installation effects in soft clay[J]. Geotechnical Engineering, 2006, 159(4): 285-296.
    [19] DING X M, LIU H L, LIU J Y, et al. Wave propagation in a pipe pile for low-strain integrity testing[J]. Journal of Engineering Mechanics, ASCE, 2011, 117(9): 598-609.
    [20] ZHENG C, DING X, LI P, et al. Vertical impedance of an end‐bearing pile in viscoelastic soil[J]. International Journal for Numerical and Analytical Methods in Geomechanics, 2014, 39(6): 676-684.
    [21] ZHENG C, LIU H, DING X, et al. Horizontal vibration of a large-diameter pipe pile in viscoelastic soil[J]. Mathematical Problems in Engineering, 2013(3): 1-13.
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  425
  • HTML全文浏览量:  3
  • PDF下载量:  333
  • 被引次数: 0
出版历程
  • 收稿日期:  2015-06-11
  • 发布日期:  2016-10-24

目录

摘要
HTML全文
    参考文献(21)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回
    版权所有 © 2010水利部交通部国家能源局南京水利科学研究院 苏ICP备05007122号-11公安联网备案号：32010602011255
    编辑部地址：南京市虎踞关34号《岩土工程学报》编辑部邮编：210024电话：025-85829534，85829556E-mail: ge@nhri.cn