ANALYSIS FOR AXIAL VIBRATION AND INTERNAL FORCES OF TOTALLY AND PARTIALLY EMBEDDED PILE GROUPS WITH FLEXIBLE CAPS

Ren Qing; Huang Maosong

doi:10.13204/j.gyjz201106022

Volume 41 Issue 6

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2011 > 41(6): 102-108

Ren Qing, Huang Maosong. ANALYSIS FOR AXIAL VIBRATION AND INTERNAL FORCES OF TOTALLY AND PARTIALLY EMBEDDED PILE GROUPS WITH FLEXIBLE CAPS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(6): 102-108. doi: 10.13204/j.gyjz201106022

Citation:

Ren Qing, Huang Maosong. ANALYSIS FOR AXIAL VIBRATION AND INTERNAL FORCES OF TOTALLY AND PARTIALLY EMBEDDED PILE GROUPS WITH FLEXIBLE CAPS[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(6): 102-108. doi: 10.13204/j.gyjz201106022

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ANALYSIS FOR AXIAL VIBRATION AND INTERNAL FORCES OF TOTALLY AND PARTIALLY EMBEDDED PILE GROUPS WITH FLEXIBLE CAPS

doi: 10.13204/j.gyjz201106022

Ren Qing¹,
Huang Maosong^2,3

1.
1. Shanghai University of Science and Technology,Shanghai 200093,China;
2.
2. Department of Geotechnical Engineering,Tongji University,Shanghai 200092,China;
3.
3. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education,Tongji University,Shanghai 200092,China

Received Date: 2010-10-30
Publish Date: 2011-06-20

Abstract

Abstract

A simplified analytical method was developed for the axial harmonic response of totally and partially embedded pile groups in homogeneous and layered soil deposits.Based on BDWF model, finite element sub-structure method was used to setup the dynamic model of cap-pile groups which could precisely simulate cap's influence on impedance of pile groups.A comprehensive parameter study was focused the influence of the caps' height and mass density on pile groups dynamic response, and then limitation of rigid cap in practical design was presented.A solution was finally presented for the internal forces distributed on pile heads due to pile-to-pile interaction.The solution of present method was compared with that of traditional simplified method(rigid and massless cap solution) in simulating an in-site experiments of totally embedded pile groups and dynamics response of partially embedded pile groups for offshore fan foundation under harmonic load, it is demonstrated that present one can predict the pile groups dynamics response more reasonable and reliable.
- flexible caps,
- pile group,
- dynamic response

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References(20)

References

[2] Roesset J M. Dynamic Stiffness of Pile Groups [J]. Pile?Foundations, Special Publication, ASCE,1984,10:263-286.

Kaynia A M, Kausel E. Dynamic Stiffness and Seismic Response?of Pile Groups[R]. Cambridge, Mass, USA: Dept. of Civil?Engineering, MIT,1982.

[3] Novak M. Piles Under Dynamic Loads: State of Art[C]//Proc,2 nd International Conference on Recent Advances in Geotechnical?Earthquake Engineering and Soil Dynamics.1991,3:2433-2456.

[4] Pender M. Aseismic Pile Foundation Design Analysis [J]. Bulletin of the New Zealand National Society for Earthquake?Engineering,1993,26(1):49-160.

[5] Padron L A, Aznarez J J, Maeso O. BEM-FEM Coupling Model?for the Dynamic Analysis of Piles and Pile Groups [J]. Engineering Analysis with Boundary Elements,2007,31:473-484.

[6] Padron L A, Aznarez J J, Maeso O. Dynamic Analysis of Piled?Foundations in Stratified Soils by a BEM-FEM Model[J]. Soil?Dynamics and Earthquake Engineering,2008,28(5):333-346.

[7] Gazetas G, Makris N. Dynamic Pile-Soil-Pile Interaction: Part I:?Analysis of Axial Vibration[J]. Earthquake Engineering and?Structure Dynamics,1991,20:115-132.

[8] Mylonakis G, Gazetas G. Vertical Vibration and Additional?Distress of Pile Groups in Layered Soil [J]. Soils and?Foundations,1998,38(1):1-14.

[9] 任青,黄茂松,钟锐,等.部分埋入群桩的竖向振动特性[J].岩土工程学报,2009,31(9):1465-1473.

[10] GB 500072002建筑地基基础设计规范[S].

[11] Hassini S, Woods R D. Dynamic Experiments with Model Pile?Foundations[C]//Proc.12 th International Conference on Soil?Mechanics and Foundation Engineering.1989,12:1135-1158.

[12] Iguchi M, Luco J E. Vibration of Flexible Plate on Viscoelastic?Medium[J]. Journal of Engineering Mechanics, ASCE,1982,108(6):1103-1120.

[13] Liou G S, Huang Paohan. Effect of Flexibility on Impedance?Functions for Circular Foundation[J]. Journal of Engineering?Mechanics, ASCE,1994,120(7):1429-1446.

[14] Mamoon Saifuddin M. Dynamics and Seismic Behavior of Deep?Foundations[D]. Buffalo, New York, USA: State University of?New York at Buffalo,1991.

[15] Fukuwa N, Wen Xuezhang. Efficient Soil-Structure Interaction?Analysis Method of a Large-Scale Pile Group[C]//Proc.4 th USJapan Workshop on Soil-Structure Interaction.2007:1-13.

[16] 王勖成.有限单元法[M].北京:清华大学出版社,2002.

[17] 侯兴民.基础动力阻抗矩阵数值解答及其工程应用[D].哈尔滨:中国地震局工程力学研究所,2003.

[18] Nogami T, Novak M. Soil-Pile Interaction in Vertical Vibration?[J]. Earthquake Engineering and Structural Dynamics,1976,4:277-293.

[19] Dobry R, Gazetas G. Simple Method for Dynamic Stiffness and?Damping of Floating Pile Groups[J]. Geotechnique,1988,38(4):557-574.

[20] 陈镕,蒋振华,薛松涛,等.桩-承台竖向强迫振动试验和分析[J].同济大学学报,2004,32(7):846-850.

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