Simulation of Space-Time Variation of Earthquake Ground Motion Using a Recorded Time History

概要

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Records of strong motion are often used as the ground motion inputs in earthquake analysis and in the design of structures. The design of underground structures, however, requires more than just the time history at any particular point on the earth's surface. It also requires the space-time variation of the ground motion. vVe have therefore d~veloped a method for generating a simulated space-time variation that includes a strong ground motion recorded at a observation point. This simulated variation is characterized by an apparent velocity and by a coherence function. Here we presented a case study using motion recorded during the 1940 Imperial Valley earthquake.
社団法人土木学会の論文
1996-10-00