Many seismic records were obtained during the 2011 off the Pacific coast of Tohoku Earthquake. It is very important to use them efficiently for the improvement of the buildings seismic design and the disaster prevention. In this paper, seismic simulation analyses of a SRC high-rise building located at Tokyo bay area were conducted based on the observer records. Nonlinear SR model was used for the analyses. The analysis results corresponded to the records well. Then, the efficiency of the soil-structure interaction and the variation of the 1st dominant frequency and the damping ratio during the earthquake were studied.
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