| 用ANSYS模拟结构-地基动力相互作用振动台试验的建模方法 |
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| 引用本文： | 陈波,吕西林,李培振,陈跃庆.用ANSYS模拟结构-地基动力相互作用振动台试验的建模方法[J].地震工程与工程振动,2002,22(1):126-131. |
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| 作者姓名： | 陈波 吕西林 李培振 陈跃庆 |
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| 作者单位： | 同济大学土木工程防灾国家重点实验室,上海,200092 |
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| 基金项目： | 国家自然科学基金重点资助项目（59823002） |
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| 摘 要： | 本文以结构－地基动力相互作用振动台模型试验为基础，结合通用有限元软件ANSYS，对结构－地基动力相互作用体系进行有限元计算建模的一些问题作了研究，主要包括柔性土容器的模拟、土体动力本构模型的选用、土体与结构交界面上的状态非线性模型、网格划分、重力的考虑、结构中钢筋的处理以及对称性的应用等。文中给出了利用上述建模方法对结构－地基动力相互作用体系进行计算的一些加速度时程结果，并与试验结果相对照，吻合较好。通过计算分析，验证了简化处理方法的合理性和计算模型的可行性。
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| 关 键 词： | 结构－地基 相互作用 模型试验 仿真 ANSYS程序 振动台试验 建模方法 |
| 文章编号： | 1000-1301(2002)01-0126-06 |
Modeling of dynamic soil-structure interaction by ANSYS program |
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| CHEN Bo,LU Xi-lin,LI Pei-zhen,CHEN Yue-qing.Modeling of dynamic soil-structure interaction by ANSYS program[J].Earthquake Engineering and Engineering Vibration,2002,22(1):126-131. |
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| Authors: | CHEN Bo LU Xi-lin LI Pei-zhen CHEN Yue-qing |
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| Abstract: | Based on shaking table model test and using general - purpose finite element program ANSYS, some issues about modeling of Soil -Structure lnteraction(SSI) system are discussed in this paper. These issues mainly include simulation of flexible soil container, selection of dynamic constitutive model of soil, simulation of the changing - status nonlinearity of soil - structure interface, meshing, consideration of gravity, treatment of reinforcements in structure, using of symnietry principle and so on. As a result, some computational results of acceleration time -history of 551 system are given in this paper. Comparison between computer and test results shows that acceleration time -history curves of corresponding points are coincident approximately, and it is verified that the simulation methods in this paper are rational and the model is feasible. |
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| Keywords: | soil - structure interaction model test simulation modeling ANSYS program |
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