| 桩基础桥梁的土—结构动力相互作用 |
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| 引用本文： | 孙剑平,朱日希.桩基础桥梁的土—结构动力相互作用[J].铁道学报,2001,23(2):65-69. |
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| 作者姓名： | 孙剑平 朱日希 |
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| 作者单位： | 北方交通大学 土木建筑学院, |
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| 基金项目： | 国家自然科学基金资助项目(59678027) |
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| 摘 要： | 首先以加权残差公式为基础，采用积分方程方法推导与桩基础对应的层状场地动力刚度矩阿公式，并用解析解验证了数值分析的计算结果。然后用子结构法联合积分方程方法和有限元法的计算结果，求解土-结构动力相互作用的地震响应；最后以芜湖长江大桥主跨斜拉桥长塔墩的地震响应为例，将本文的计算结果与Penzien模型的计算结果作了比较。
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| 关 键 词： | 桩基础 层状场地 土－结构动力相互作用 边界元法 子结构方法 桥梁 计算 |
| 文章编号： | 1001-8360(2001)02-0065-05 |
| 修稿时间： | 2000年6月30日 |
Seismic response for pile-foundation bridges considering
soil-structure dynamic interaction |
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| SUN Jian-ping,ZHU Xi.Seismic response for pile-foundation bridges considering
soil-structure dynamic interaction[J].Journal of the China railway Society,2001,23(2):65-69. |
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| Authors: | SUN Jian-ping ZHU Xi |
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| Abstract: | Based on the weighted-residual formulation, the integral expression and the formula for calculating the dynamic-stiffness matrix of pile group foundation by the indirect boundary-element method are derived. The formula of response ［Np(z)］ in a element with fixed boundary was derived by the Mathmatica. The dynamic-stiffness matrix was calculated by MATLAB program. The results which were validated by analytic solution can directly used to solve the soil-pile-structure interaction problem by the substructure method which connecting the finite-element method and the boundary-element method. |
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| Keywords: | strata field with pile group foundation soil-structure dynamic interaction boundary-element method substructure method |
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