Deep-neural-network model for predicting ground motion parameters using earthquake horizontal-to-vertical spectral ratios

被引:0
|
作者
Pan, Da [1 ]
Miura, Hiroyuki [1 ]
机构
[1] Hiroshima Univ, Grad Sch Adv Sci & Engn, 1-4-1 Kagamiyama, Higashihiroshima, Hiroshima 7398527, Japan
关键词
Ground motion model; deep-neural-network; earthquake horizontal-to-vertical spectral ratios; site effects; hybrid method; COMPONENTS; EQUATIONS; PGA; MICROTREMORS; ATTENUATION; ARC;
D O I
10.1177/87552930241272612
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This study proposed a deep-neural-network (DNN) model for seismic ground motion prediction by utilizing a unified strong motion database by the National Research Institute for Earth Science and Disaster Resilience, and earthquake horizontal-to-vertical spectral ratio (EHVR) database in Japan. The model aims to enhance the accuracy of predictions by incorporating the EHVRs for complementing site effects, and utilizing existing ground motion prediction equations (GMPE) as the base model for source and propagation path effects. The hybrid approach enables the prediction of peak ground accelerations (PGAs), peak ground velocities (PGVs), and 5% damped absolute acceleration response spectra (SAs). After classifying the training and test sets from the database, the trained DNN models were applied on the test set to evaluate the performance of the predicted results. The accuracy assessment by the residuals, R-squared (R2), and root mean square error (RMSE) between the predicted and observed values in the test set revealed the superior performance of the proposed model compared with the traditional GMPE with proxy-based site effects such as VS30s especially in predicting both the spectral amplitude and shape of SAs.
引用
收藏
页码:824 / 850
页数:27
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