Comprehensive Seismic Response Analysis for Estimating the Seismic Behavior of Buried Pipelines Enhanced by Three-Dimensional Dynamic Finite Element Analysis of Ground Motion and Soil Amplification
Comprehensive Seismic Response Analysis for Estimating the Seismic Behavior of Buried Pipelines Enhanced by Three-Dimensional Dynamic Finite Element Analysis of Ground Motion and Soil Amplification
复制标题
地震动和土壤放大的三维动态有限元分析增强了综合地震反应分析，用于估计埋地管道的地震行为
DOI：
10.1115/1.4033250
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Fumiki Ito and Iwao Suetomi
中科院分区：
文献类型：
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作者：
Tsuyoshi Ichimura;Kohei Fujita;Pher Errol Quinay;Muneo Hori;Takashi Sakanoue;Ryo Hamanaka;Fumiki Ito and Iwao Suetomi
我们展示了一个全面的地震反应分析方法，以提高地震输入力的估计埋地管道相结合的地面运动和土壤放大分析。利用该方法，对实际管道的地震输入力进行了估算，并对最大假定地震断层情况下的管道抗震性能进行了检验。地面和地表地形的三维不均匀性对地震动和土壤放大效应分析的结果有很大的影响。为了考虑这些影响，使用10 × 109自由度三维有限元模型进行线性波传播分析用于地震动分析，使用80 × 106自由度三维有限元模型进行非线性波传播分析用于土壤放大分析。算例表明，地表三维不均匀性和拓扑结构对埋地管线产生复杂的地震输入力，验证了本文提出的综合抗震分析方法的有效性。
We demonstrate a comprehensive earthquake response analysis method for improving the seismic input force estimation of buried pipelines by combining ground motion and soil amplification analyses. Using this method, the seismic input force of an actual pipeline was estimated and its seismic performance was checked for a largest assumed seismic fault scenario. Three-dimensional inhomogeneity of ground and surface topography is known to greatly affect the results of ground motion and soil amplification analyses. To consider these effects, a linear wave propagation analysis using a 10 × 109degree-of-freedom three-dimensional finite element model was conducted for the ground motion analysis, and a nonlinear wave propagation analysis using an 80 × 106degree-of-freedom three-dimensional finite element model was conducted for the soil amplification analysis. The application example showed that three-dimensional inhomogeneity of ground and surface topology caused complex seismic input forces to buried pipelines, and demonstrated the effectiveness of the comprehensive seismic analysis method proposed in this study.