Three-dimensional Site Response Analysis Based on Equivalent-Linear Behavior of Foundation Soil

Qu Yunguang; Xu Zhengyu

doi:10.13832/j.jnpe.2022.02.0112

Volume 43 Issue 2

Apr. 2022

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Qu Yunguang, Xu Zhengyu. Three-dimensional Site Response Analysis Based on Equivalent-Linear Behavior of Foundation Soil[J]. Nuclear Power Engineering, 2022, 43(2): 112-116. doi: 10.13832/j.jnpe.2022.02.0112

Citation:

Qu Yunguang, Xu Zhengyu. Three-dimensional Site Response Analysis Based on Equivalent-Linear Behavior of Foundation Soil[J]. Nuclear Power Engineering, 2022, 43(2): 112-116. doi: 10.13832/j.jnpe.2022.02.0112

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Three-dimensional Site Response Analysis Based on Equivalent-Linear Behavior of Foundation Soil

doi: 10.13832/j.jnpe.2022.02.0112

State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment, China Nuclear Power Engineering Co., Ltd., Shenzhen, Guangdong, 518124, China

Received Date: 2021-02-09
Rev Recd Date: 2021-07-12
Publish Date: 2022-04-02

Abstract

Abstract

With the increasing complexity of nuclear power plant's siting conditions, soil-structure interaction (SSI) has become an important issue to be considered in the seismic analysis. At present, the classical free-field site response analysis uses the analysis of one-dimensional layered foundation soil, such as SHAKE91, EERA and SASSI, so it is difficult to consider the heterogeneous layer factors of the soil layer. Therefore, with the increasing regulatory requirements for nuclear power safety, the refined analysis of earthquake resistance has become a trend. In this paper, the UMAT material subprogram written by the finite element program ABAQUS is used to realize the equivalent linearity of the foundation soil material and carry out the three-dimensional free-field site response analysis of the homogeneous layered soil. Comparing the calculation and analysis results with SHAKE91 calculation results, it shows that it is in good agreement under the condition of homogeneous layered soil. Therefore, this study provides a good engineering applicability for the SSI analysis of complex heterogeneous foundation conditions.
- Soil-structure interaction (SSI),
- Site response analysis,
- Homogeneous layered soil

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References(13)

References

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