| 三维非均质土中粘弹性桩-土纵向耦合振动响应 |
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| 引用本文： | 杨冬英,王奎华,丁海平. 三维非均质土中粘弹性桩-土纵向耦合振动响应[J]. 土木建筑与环境工程, 2011, 33(3): 80-87 |
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| 作者姓名： | 杨冬英 王奎华 丁海平 |
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| 作者单位： | 苏州科技学院 土木工程学院,江苏 苏州 215011;浙江大学 软弱土与环境土工教育部重点实验室,杭州310058;苏州科技学院 土木工程学院,江苏 苏州 215011 |
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| 基金项目： | 国家自然科学基金资助项目(50879077)；苏州科技学院基金项目；常熟市建设科研资助项目(CSJS201102) |
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| 摘 要： | 在考虑土体三维非均质性情况下,对变截面粘弹性桩的动力特性进行研究.首先,结合边界条件,利用复刚度传递平面应变土体模型求得纵向不同性质桩侧土层的复刚度,进而对各段变截面桩身从下往上逐段推导得到单桩桩顶受纵向激振力作用下的桩基振动的频域响应解析解;然后,利用卷积定理和Fourier逆变换得到桩顶的时域响应半解析解;最后,研...
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| 关 键 词： | 变截面粘弹性桩 三维非均质土 复刚度传递多圈层平面应变模型 桩动力响应 桩-土耦合振动 |
| 收稿时间： | 2010-12-05 |
Axial Response of Viscoelastic Pile-soil Coupling Interaction in Three-dimensional Inhomogeneous Soil |
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| YANG Dong-ying,WANG Kui-hua and DING Hai-ping. Axial Response of Viscoelastic Pile-soil Coupling Interaction in Three-dimensional Inhomogeneous Soil[J]. Journal of Civil,Architectrual & Environment Engineering, 2011, 33(3): 80-87 |
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| Authors: | YANG Dong-ying WANG Kui-hua DING Hai-ping |
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| Affiliation: | School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, Jiangsu, P.R.China;MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering,Zhejiang University,Hangzhou,310058,P.R.China;School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011, Jiangsu, P.R.China |
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| Abstract: | Considering the three-dimensional inhomogeneity of soil surrounding the pile, the response of non-uniform viscoelastic pile under axial dynamic loading is studied. Firstly, combining the boundary condition, the complex stiffness of axial different soil layers are obtained by the complex stiffness transfer model of radial multi-zone plane strain. Then, the analytical solution of dynamic response at pile top in frequency domain is proposed by solving the dynamic equation of non-uniform viscoelastic pile section one by one from the bottom up to the top, and the relevant semi-analytical solution response in time domain is adopted by the convolution theorem and the Inverse Fourier Transform. At last, the effect of parameters of pile and soil are investigated to get the nature of the dynamic response of pile top in frequency domain and time domain. |
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| Keywords: | non-uniform viscoelastic pile three-dimensional inhomogeneous soil complex stiffness transfer model of radial multi-zone plane strain dynamic response of pile pile-soil coupling interaction |
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