TY - JOUR
T1 - Evaluation of two approaches to simulate spatially variable ground motions
AU - Tsai, Chi Chin
AU - Hashash, Youssef M.A.
N1 - Funding Information:
This work was supported by the Earthquake Engineering Research Centers Program of the National Science Foundation under Award Number EEC-9701785; the Mid-America Earthquake Center. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. The authors gratefully acknowledge this support.
PY - 2010/2
Y1 - 2010/2
N2 - Spatial variability of ground motions has significant influence on dynamic response of extended structures such as bridges and tunnels. This study systematically evaluates two commonly used procedures for developing spatially variable ground motion time series considering incoherency effect, wave passage effect, and effect of intermediate stations. The evaluation included the methods' ability to: handle general forms of incoherency function, correctly account for wave passage, conserve energy, and be minimally influenced by the presence of intermediate stations. The method that can mostly satisfy these requirements is identified in this article.
AB - Spatial variability of ground motions has significant influence on dynamic response of extended structures such as bridges and tunnels. This study systematically evaluates two commonly used procedures for developing spatially variable ground motion time series considering incoherency effect, wave passage effect, and effect of intermediate stations. The evaluation included the methods' ability to: handle general forms of incoherency function, correctly account for wave passage, conserve energy, and be minimally influenced by the presence of intermediate stations. The method that can mostly satisfy these requirements is identified in this article.
KW - Ground motion time-history
KW - Incoherency
KW - Spatially variable motion
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U2 - 10.1080/13632460802421318
DO - 10.1080/13632460802421318
M3 - Article
AN - SCOPUS:73849134577
VL - 14
SP - 293
EP - 308
JO - Journal of Earthquake Engineering
JF - Journal of Earthquake Engineering
SN - 1363-2469
IS - 2
ER -