[1]YAN Jingru,ZHANG Yushan,HAO Minghui.Study on Amplification Effect of Peak Ground Acceleration Based on Different Sites in Shandong Province[J].Journal of Seismological Research,2020,43(03):569-575.
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Study on Amplification Effect of Peak Ground Acceleration Based on Different Sites in Shandong Province
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
43
Number of periods:
2020 03
Page number:
569-575
Column:
Public date:
2020-09-14
- Title:
- Study on Amplification Effect of Peak Ground Acceleration Based on Different Sites in Shandong Province
- Keywords:
- site effect; site classification; PGA; amplification coefficient
- CLC:
- P315.91
- DOI:
- -
- Abstract:
- By collecting and sorting the 278 borehole profiles with comparatively complete soil structure data in Shandong province from the In-site Investigation Borehole Database and Analysis Platform System,this article calculates the site response of class-II and class-III sites under the effect of 5 different kinds of actual rock earthquake by applying linear equivalent response analysis method on one-dimensional soil layer,analyzing how the peak ground amplification coefficient changes according to the different sites,shear wave velocity and input earthquake intensity. The results show that:① the soil in the site would amplify the input earthquake,and the effect acts differently in class-II and class-III site as the input earthquake intensified; ② by comparing the average PGA and fitting curve of different earthquake intensity in all sites,it can be concluded that the PGA in class-II is higher than that of class-III in most conditions; ③ by analyzing the change of PGA with Vse in all sites,it can be concluded that when Vse>350 m/s,the trend of the PGA is even under the strong earthquake effect of D and E. So,this article proposes a more thorough classification method for class-II site and gives the changes of the earthquake parameters in all kinds and the coefficient values.
- References:
- -
- Similar References:
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Last Update:
2020-09-18