Scholarlink

<p>To analyze the correlation between the input energy parameters (<i>V</i><sub><i>E</i></sub>) and typical intensity measures (<i>IM</i>s) of offshore ground motions, based on 273 earthquake events recorded by the K-NET in Japan, 892 offshore ground motion records with moment magnitudes from 4.0 to 7.0 were used in this study. Residuals obtained through a ground motion model were calculated and analyzed for the correlation between <i>V</i><sub><i>E</i></sub> and amplitude, duration, frequency content and cumulative <i>IM</i>s. The results indicate that PGV and PGD have strong correlation with the <i>V</i><sub><i>E</i></sub> (<i>T</i>&gt;0.2 s and <i>T</i>&gt;0.4 s), the duration <i>IM</i>s have weakly negative correlation with the <i>V</i><sub><i>E</i></sub>, <i>Sd</i><sub>1</sub> has a strong correlation with the <i>V</i><sub><i>E</i></sub> in the periods of <i>T</i>&gt;0.4 s, <i>T</i><sub>g</sub> has a weak correlation with <i>V</i><sub><i>E</i></sub> and the cumulative <i>IM</i>s have strong correlation with the <i>V</i><sub><i>E</i></sub>. The parametric predictive equations between typical <i>IM</i>s and <i>V</i><sub><i>E</i></sub> was proposed, and the differences between the prediction equations from the onshore ground motion records were compared. The differences in parametric predicted equations between offshore and onshore ground motions were confirmed in this study. Proposed correlation equations can be applied to offshore probabilistic seismic hazard analysis and the selection of ground motion records by generalized conditional intensity measures.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Empirical correlation between the elastic input energy and typical intensity measures for offshore ground motions

  • 期刊论文

  • 发表日期：

    2025年7月26日

查看全文
  • Jinjun Hu,
  • Hao Tian,
  • Jingyang Tan,
  • Mingji Liu,
  • Chaoyue Jin

摘要

To analyze the correlation between the input energy parameters (VE) and typical intensity measures (IMs) of offshore ground motions, based on 273 earthquake events recorded by the K-NET in Japan, 892 offshore ground motion records with moment magnitudes from 4.0 to 7.0 were used in this study. Residuals obtained through a ground motion model were calculated and analyzed for the correlation between VE and amplitude, duration, frequency content and cumulative IMs. The results indicate that PGV and PGD have strong correlation with the VE (T>0.2 s and T>0.4 s), the duration IMs have weakly negative correlation with the VE, Sd1 has a strong correlation with the VE in the periods of T>0.4 s, Tg has a weak correlation with VE and the cumulative IMs have strong correlation with the VE. The parametric predictive equations between typical IMs and VE was proposed, and the differences between the prediction equations from the onshore ground motion records were compared. The differences in parametric predicted equations between offshore and onshore ground motions were confirmed in this study. Proposed correlation equations can be applied to offshore probabilistic seismic hazard analysis and the selection of ground motion records by generalized conditional intensity measures.