Simplified analysis of pile-group-soil effect under axial and horizontal interactive excitation

XIONG Hui; SHANG Shou-ping

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Simplified analysis of pile-group-soil effect under axial and horizontal interactive excitation

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- Simplified analysis of pile-group-soil effect under axial and horizontal interactive excitation
- Vol. 27, Issue 12, (2006)
- 作者机构：
  
  湖南大学土木工程学院结构所,长沙,410082
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU435
- Online First：09 December 2013，
  
  Published：2006
- 稿件说明：
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XIONG Hui, SHANG Shou-ping. Simplified analysis of pile-group-soil effect under axial and horizontal interactive excitation[J]. 2006, 27(12).
DOI：

XIONG Hui, SHANG Shou-ping. Simplified analysis of pile-group-soil effect under axial and horizontal interactive excitation[J]. 2006, 27(12). DOI：

摘要

以动力文克尔地基梁模型为基本理论，在改进了Gazetas均质土中的桩-土-桩相互作用三步法计算模式的基础上，运用分层传递技术，导出了层状地基中群桩在轴、横多向受力条件下的力与位移动力相互关系的显示表达，提出了桩顶谐振作用条件下计算层状介质中动力相互作用因子的新方法，以相对简明的方式阐述了桩顶轴力对群桩水平动力效应的影响，并以此来寻求频域动载下的基桩变位及其内力规律，较为全面地揭示群桩振动特性。

Abstract

Based on the dynamic winkler-foundation beam model and interfacial transfer matrix scheme

the explicit expressions indicating force-displacement relationship of piles are derived under combinative axial and lateral loads in layered-soil. In terms of the improved Gazetas’s three-step procedure for pile-soil-pile interaction in homogenous media

a new method for calculating dynamic interaction factors for strata-soil is suggested under harmonic excitation. A relatively concise scheme to horizontal dynamic effect on pile-group considering the influence of axial load is expatiated. The vibration characteristic including frequency-dependent displacements and internal forces of pile-group could be also roundly revealed by the presented method.

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