Some oil dampers installed in an 8F steel building had been destroyed in the 2011 Great East Japan Earthquake. It is the 1st time real dampers in a real building were damaged during real earthquake in the world. Earthquake records with/without dampers were observed before and after the earthquake. In this paper, numerical results by the FEM simulation have been compared with the real recorded data. The comparison revealed the damaged process for real damper, in the same time the effectiveness of
Some oil dampers installed in an 8F steel building had been destroyed in the 2011 Great East Japan Earthquake. It is the 1st time real dampers in a real building were damaged during real earthquake in the world. Earthquake records with/without dampers were observed before and after the earthquake. In this paper, numerical results by the FEM simulation have been compared with the real recorded data. The comparison revealed the damaged process for real damper, in the same time the effectiveness of