| 滩海桶形基础承载力三维弹塑性有限元仿真 |
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| 引用本文： | 张宏祥,张伟. 滩海桶形基础承载力三维弹塑性有限元仿真[J]. 地震工程与工程振动, 2006, 26(4): 127-131 |
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| 作者姓名： | 张宏祥 张伟 |
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| 作者单位： | 1. 吉林大学,建设工程学院,吉林,长春,130026
2. 天津大学,建筑工程学院,天津,300072 |
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| 摘 要： | 在经典的D rucker-Prager(以下简称D-P)弹塑性本构模型基础上,通过将线性屈服准则改为抛物线型屈服准则来模拟静水压力对土体的屈服与破坏,并根据实验确定的硬化曲线建立了改进的D-P模型,使该本构模型能很好地模拟大港滩海软土的应力应变关系。利用MARC程序作为平台,建立了滩海桶形基础承载力有限元分析模型,计算了实验桶形基础的承载力。将计算结果进行了与模型试验结果的比较,证明了该模型的有效性。
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| 关 键 词： | 软土 桶形基础 弹塑性 仿真 |
| 文章编号： | 1000-1301（2006）04-0127-05 |
| 收稿时间： | 2006-02-05 |
| 修稿时间： | 2006-02-052006-04-25 |
Three-dimensional elastoplastic FEM simulation of bearing force of bucket foudation in shallow water |
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| Zhang Hongxiang,Zhang Wei. Three-dimensional elastoplastic FEM simulation of bearing force of bucket foudation in shallow water[J]. Earthquake Engineering and Engineering Vibration, 2006, 26(4): 127-131 |
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| Authors: | Zhang Hongxiang Zhang Wei |
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| Affiliation: | 1. Construction Engineering College, Jilin University, Changchun 130026, China; 2. School of Construction Engineering,Tianjin University,Tianjin 300072 ,China |
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| Abstract: | On the basis of classic D-P constitutive model,the working hardening relation is added to establish an updated elasto-plastic model,in which the linear yielding relation is changed into the parabolic relation.So it can be adaptive to the stress-strain relation of soft clay from shallow water in Dagang.Using MARC program the finite-element analytic model of the bucket foundation is established and the bearing capacity of a sample are calculated.The validity of this model is identified. |
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| Keywords: | soft clay bucket foundation elasto-plasticity simulation |
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