Parameter Identification and Analysis of Shaking Table Tests on SSI System
Parameter Identification and Analysis of Shaking Table Tests on SSI System
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DOI：
10.3130/jaabe.10.421
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发表时间：
2011-11
影响因子：
1.3
通讯作者：
Peizhen Li;Peng Zhao;Xilin Lu
中科院分区：
文献类型：
--
作者：
Peizhen Li;Peng Zhao;Xilin Lu
本文简要介绍了硬土条件下(平均剪切波速大于153m/S)土-结构相互作用体系的振动台试验，并根据试验结果识别了土的剪切模量和阻尼比等动力特性。根据土的识别结果，利用有限元分析程序对振动台试验进行了三维有限元分析。对于桩-土界面状态的非线性，考虑了桩-面接触单元的影响，对土的性态采用了等效线性模型。通过将有限元分析结果与振动台试验数据进行对比，验证了计算模型的正确性。
Abstract The shaking table test of a soil-structure interaction system under hard soil conditions (with an average shear wave velocity of more than 153 m/s) is briefly presented in this paper, and the soil dynamic characteristics, including the shear moduli and damping ratio, are identified using the acceleration results of the test. Based on the identification results of the soil, a three-dimensional finite element analysis of the shaking table test was conducted using the ANSYS program. The surface-to-surface contact element was taken into consideration for the nonlinearity of the interface state of the soil-pile, and an equivalent linear model was used for the soil behavior. By comparing the results of the finite element analysis with the data obtained from the shaking table test, a computational model was validated.