| 上拔荷载作用下等截面桩的承载性状数值模拟 |
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| 引用本文： | 刘文白,邓益兵,蒋建平.上拔荷载作用下等截面桩的承载性状数值模拟[J].计算机辅助工程,2007,16(1):13-16. |
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| 作者姓名： | 刘文白 邓益兵 蒋建平 |
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| 作者单位： | 上海海事大学交通运输学院,上海200135 |
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| 摘 要： | 利用轴对称模型对等截面桩进行承受上拔载荷作用的有限元模拟.通过数值模拟研究桩的承载性状,包括桩的上拔位移、载荷传递特性和桩侧摩阻力的发展,并分析桩底部土体的局部应变以及土体位移场的分布.研究发现,在达到极限上拔载荷时,桩端周围土体出现剪应变方向相反的两个区域并形成剪切带,桩周土体的位移场逐渐呈倒锥形分布.
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| 关 键 词： | 桩 上拔载荷 有限元 载荷传递 桩侧摩阻力 位移场 上拔位移 载荷作用 截面桩 承载性状 数值模拟 loading uplift pile performance bearing simulation 锥形 土体位移场 桩周土体 剪切带 区域 方向 剪应变 周围土体 桩端 |
| 文章编号： | 1006-0871（2007）01-0013-04 |
| 收稿时间： | 2006-04-07 |
| 修稿时间： | 2006-11-23 |
Numerical simulation for bearing performance of uniform-section pile under uplift load |
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| LIU Wenbai,DENG Yibing and JIANG Jianping.Numerical simulation for bearing performance of uniform-section pile under uplift load[J].Computer Aided Engineering,2007,16(1):13-16. |
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| Authors: | LIU Wenbai DENG Yibing and JIANG Jianping |
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| Affiliation: | Transport & Communications College, Shanghai Maritime Univ., Shanghai 200135, China,, |
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| Abstract: | Numerical simulation of finite element for pile under uplift loading is done by axisymmetric model. The bearing performance of pile is studied, including uplifting displacement, load transfer, and development of side resistance. The strain of soil near the edge of pile and distribution of displacement field are studied. It is found that two areas occurs near the edge of pile in shear strain and its reverse direction and shear band comes into being when uplifting load is up to limit, and the shape distribution of displacement field becomes inverse cone gradually. |
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| Keywords: | pile uplift loading finite element load transfer side resistance displacement field |
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