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Xu P B，Wen R Z. 2018. The prediction equations for the significant duration of strong motion in Chinese mainland. Acta Seismologica Sinica，40（6）：809−819. doi：10.11939/jass.20180008. DOI: 10.11939/jass.20180008
Citation: Xu P B，Wen R Z. 2018. The prediction equations for the significant duration of strong motion in Chinese mainland. Acta Seismologica Sinica，40（6）：809−819. doi：10.11939/jass.20180008. DOI: 10.11939/jass.20180008
shu

The prediction equations for the significant duration of strong motion in Chinese mainland

  • 1.

    Institute of Engineering Mechanics，China Earthquake Administration，Harbin 150080，China

  • 2.

    Key Laboratory of Earthquake Engineering and Engineering Vibration，China Earthquake Administration，Harbin 150080，China

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  • Received Date: January 09, 2018
  • Revised Date: August 02, 2018
  • Available Online: November 04, 2018
  • Published Date: October 31, 2018
    Graphical Abstract
    • Abstract
  • The earthquake damages of engineering structures have been affected by the amplitude, frequency and duration of the strong motion records. However, there are relatively few published duration equations available in Chinese mainland. In this paper, we collected the strong motion records with magnitude MW5.0—6.6 during 2007—2015 from Chinese digital strong motion networks. Considering the effects of source, path and site, the random-effected regression technique was adopted to fit a predictive equation in respect to the significant duration. In comparing the predicted durations with other studies, it is shown that this predicted significant duration increases with the increased earthquake magnitude or the increased distance, and decreases with the increased vS30. Furthermore, it has the similar characteristics with other studied regions.
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    • References (31)
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