TY - JOUR
T1 - Research on the non-stationary model of three-dimensional ground motion intensity based on KiK-net earthquake records
AU - Du, Dongsheng
AU - Wang, Shuguang
AU - Kong, Chen
N1 - Publisher Copyright:
© 2017, Editorial Office of China Civil Engineering Journal. All right reserved.
PY - 2017/5/1
Y1 - 2017/5/1
N2 - Non-stationary characteristics of ground motion intensity have remarkable effect on the nonlinear response of structures, and accurate description of non-stationary characteristics of ground motion intensity is of significance to generating artificial earthquakes. In this work, a model for non-stationary characteristics of three-dimensional ground motion intensity was proposed, and the values were given for the deterministic parameters and the stochastic parameters, respectively. Firstly, a series of actual non-stationary characteristics were extracted from a large number of KiK-net earthquake records. Then, a non-stationary model of ground motion intensity was chosen and its parameters were identified by the genetic algorithm. At last, the parameter values were determined for the three-dimensional model under different earthquake magnitude, epicentral distances and site conditions. The results show that the model proposed in this study can reflect the law of non-stationary characteristics of ground motion intensity, and it can be used in structural anti-seismic analysis and artificial earthquake simulation.
AB - Non-stationary characteristics of ground motion intensity have remarkable effect on the nonlinear response of structures, and accurate description of non-stationary characteristics of ground motion intensity is of significance to generating artificial earthquakes. In this work, a model for non-stationary characteristics of three-dimensional ground motion intensity was proposed, and the values were given for the deterministic parameters and the stochastic parameters, respectively. Firstly, a series of actual non-stationary characteristics were extracted from a large number of KiK-net earthquake records. Then, a non-stationary model of ground motion intensity was chosen and its parameters were identified by the genetic algorithm. At last, the parameter values were determined for the three-dimensional model under different earthquake magnitude, epicentral distances and site conditions. The results show that the model proposed in this study can reflect the law of non-stationary characteristics of ground motion intensity, and it can be used in structural anti-seismic analysis and artificial earthquake simulation.
KW - Envelope function of intensity
KW - KiK-net strong ground motion records
KW - Non-stationary characteristics of ground motion intensity
KW - Stochastic model
UR - http://www.scopus.com/inward/record.url?scp=85029328863&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:85029328863
SN - 1000-131X
VL - 50
SP - 72
EP - 80
JO - Tumu Gongcheng Xuebao/China Civil Engineering Journal
JF - Tumu Gongcheng Xuebao/China Civil Engineering Journal
IS - 5
ER -