Practical dynamic reliability analysis with spatiotemporal features in geotechnical engineering
Practical dynamic reliability analysis with spatiotemporal features in geotechnical engineering
复制标题
岩土工程中时空特征的实用动力可靠性分析
DOI：
10.1080/17499518.2021.1971250
复制
发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Muramatsu Shogo
中科院分区：
文献类型：
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作者：
Otake Yu;Shigeno Kyohei;Higo Yosuke;Muramatsu Shogo
近年来，改善土体结构的设计以确保土体对意外灾害荷载条件的稳健性已变得相当重要。本文提出了一种实用的可靠性分析方案，该方案使用输入参数，在最大限度地保留时空信息的同时，将数值分析结果作为多维信息，从而能够开发基于降维的稳健设计。此外，所提出的设计方案具有与一阶二阶矩方法、一阶可靠度方法等传统可靠性分析方法类似的实用设计功能。最后，通过对液化砂土地基上简单路堤的时序地震变形分析，验证了所提出的设计方案的有效性及其对实际土工结构设计的重要贡献。
In recent years, improvements to the design of earth structures to ensure soil robustness against accidental disaster load conditions has gained considerable importance. In this paper, we propose a practical reliability analysis scheme that can enable the development of a robust design based on dimensionality reduction; this scheme employs input parameters, and it uses numerical analysis results as multidimensional information while preserving the spatiotemporal information to the maximum extent. Further, the proposed design scheme has practical design functions similar to those of conventional reliability analysis methods, such as the first-order second-moment method and first-order reliability method. Finally, the effectiveness of the proposed design scheme and its significant contribution to the practical design of earth structures are demonstrated via a time series seismic deformation analysis of simple embankments on liquefiable sand ground.