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Dynamic Responses of High-Rise Base-Isolated Building during the 2011 Great East Japan Earthquake

 Dynamic Responses of High-Rise Base-Isolated Building during the 2011 Great East Japan Earthquake
Author(s): ,
Presented at IABSE Conference: Elegance in structures, Nara, Japan, 13-15 May 2015, published in , pp. 408-409
DOI: 10.2749/222137815815775600
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Seismic responses of a high-rise base-isolated building in Tokyo Institute of Technology were recorded during the 2011 Tohoku-oki earthquake. The purpose of this paper is to point out various impor...
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Bibliographic Details

Author(s):

Medium: conference paper
Language(s): English
Conference: IABSE Conference: Elegance in structures, Nara, Japan, 13-15 May 2015
Published in:
Page(s): 408-409 Total no. of pages: 8
Page(s): 408-409
Total no. of pages: 8
Year: 2015
DOI: 10.2749/222137815815775600
Abstract:

Seismic responses of a high-rise base-isolated building in Tokyo Institute of Technology were recorded during the 2011 Tohoku-oki earthquake. The purpose of this paper is to point out various important findings on the building responses from the recorded data, as well as to create the data base for fostering immature research areas on high-rise base-isolated buildings and monitoring. This paper explains a variety of numerical techniques such as transfer function curve-fitting procedure for system identification, comparison with conventional structure by modal analysis, damper hysteresis, axial force variation of rubber bearing, and dynamic characteristic variation due to input amplitude. Reliability of recorded results is confirmed by various methods, and applicabilities of the techniques for the high-rise isolated building are discussed.

Keywords:
high-rise building modal analysis system identification Earthquake Records Base-Isolated Structure 2011 Tohoku-Oki Earthquake