Research on Instrumental Seismic Intensity Evaluation Method Based on Multilayer Perceptron

Instrumental seismic intensity refers to the intensity of ground motion calculated from the observation records of instruments, which can directly reflect the impact of an earthquake. Establishing an efficient and accurate instrumental intensity evaluation model is of great significance in earthquak...

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Veröffentlicht in:Fangzai Jianzai Gongcheng Xuebao 2023-01 (5), p.979
Hauptverfasser: Xu, Cuicui, Yang, Shujuan, Xu, Weixiao
Format: Artikel
Sprache:chi
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Zusammenfassung:Instrumental seismic intensity refers to the intensity of ground motion calculated from the observation records of instruments, which can directly reflect the impact of an earthquake. Establishing an efficient and accurate instrumental intensity evaluation model is of great significance in earthquake prevention and mitigation, and rapid intensity reporting. In this paper, the ground motion records of Wenchuan earthquake and its corresponding macro investigation intensity are used as data sources, the correlation degree of 17 seismic parameters and investigation intensity is determined through grey correlation analysis. Spectral intensity, cumulative absolute velocity, root mean square acceleration and other parameters with high correlation coefficient with macroseismic intensity are selected as the input of the model, the macroscopic investigation intensity is taken as the output, with the number of model iterations is 1 000. Mean square error is selected for the loss function of the model, mean absolute erro
ISSN:1672-2132
DOI:10.13409/j.cnki.jdpme.20220823001