[1]MA Wanjun,LU Jianqi,TANG Lihua,et al.A Method for Non-stationary Ground Motion Simulation Based on the Equivalent Group Velocity Model[J].Journal of Seismological Research,2019,42(04):523-530.
Copy
A Method for Non-stationary Ground Motion Simulation Based on the Equivalent Group Velocity Model
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
42
Number of periods:
2019 04
Page number:
523-530
Column:
Public date:
2019-12-15
- Title:
- A Method for Non-stationary Ground Motion Simulation Based on the Equivalent Group Velocity Model
- Keywords:
- non-stationary ground motion; envelope delay; equivalent group velocity; ground motion simulation
- CLC:
- P315.914
- DOI:
- -
- Abstract:
- Based on the concept that the energy propagation velocity of ground motion is group velocity,this paper briefly reviews the phase differential and narrow-band filtering methods for calculating frequency-dependent wave packet time delay and their applications in non-stationary ground motion phase simulation.Then a non-stationary ground motion simulation method is established.The effectiveness of this method is verified by simulating two typical ocean-bottom and land ground motions.Finally,the application of this method in regional non-stationary ground motion field simulation is discussed.The results show that the average acceleration response spectrum of the simulated ground motion recorded by this method is consistent with the original recorded acceleration response spectrum.In addition,the non-stationary characteristics of the earthquake can be well reproduced.
- References:
- -
- Similar References:
Memo
-
Last Update:
2019-12-15