| 考虑桩顶附加质量时的单桩水平动力响应分析 |
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| 引用本文： | 胡安峰,肖志荣,宋桂亭,刘 洋.考虑桩顶附加质量时的单桩水平动力响应分析[J].岩土力学,2006,27(Z2):837-840. |
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| 作者姓名： | 胡安峰 肖志荣 宋桂亭 刘 洋 |
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| 作者单位： | 1. 浙江大学 岩土工程研究所， 杭州 310027；2. 浙江科技学院 土木系，杭州 310023；3.山东省诸城市运输管理所，诸城 262200 |
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| 基金项目： | 浙江省自然科学基金资助项目（Y104413） |
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| 摘 要： | 基于动力Winkler模型，采用与频率相关的刚度系数和阻尼系数来模拟土对桩的动反力，得到了黏弹性地基中考虑桩顶附加质量时的单桩水平动力响应解析解。研究了桩土模量比、桩体长径比以及激振频率对桩基动力响应的影响。分析表明，当考虑桩顶附加质量时，桩体位移总体上有减小的趋势；无量纲频率对桩体水平位移的影响程度要远远大于不考虑桩顶附加质量时的情况。
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| 关 键 词： | 单桩 附加质量 水平动力响应 无量纲频率 |
Analysis of horizontal dynamic response of single pile with attached mass
at pile tip |
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| HU An-feng,XIAO Zhi-rong,SONG Gui-ting,LIU Yang.Analysis of horizontal dynamic response of single pile with attached mass
at pile tip[J].Rock and Soil Mechanics,2006,27(Z2):837-840. |
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| Authors: | HU An-feng XIAO Zhi-rong SONG Gui-ting LIU Yang |
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| Institution: | 1. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China; 2. Department of Civil Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, China; 3. Control Station of Zhucheng City, Shandong 262200, China |
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| Abstract: | Based on frequence-dependent stiffness and damp coefficients, the Beam-on-Dynamic-Winkler-Foundation is adopted to obtain the horizontal dynamic response of a single pile with attached mass at pile tip.Through the solution, the influence of many parameters on the dynamic response of pile, such as the ratio of Young’s modulus of pile to that of soil, the ratio of pile length to diameter and the excitation frequency, is studied. It is found that, the dynamic response will decrease when considering the attached mass, but the influence of the excitation frequency is more remarkable. |
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| Keywords: | single pile attached mass horizontal dynamic response dimensionless frequency |
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