Responses of a tall building with U.S. code-type instrumentation in Tokyo, Japan, to events before, during and after the Tohoku earthquake of 11 March 2011
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Abstract
The 11 March 2011 M 9.0 Tohoku earthquake generated long-duration shaking that propagated hundreds of kilometers from the epicenter and affected tall buildings in urban areas several hundred kilometers from the epicenter of the main shock. Recorded responses show that tall buildings were affected by long-period motions. This study presents the behavior and performance of a 37-story building in the Tsukuda area of Tokyo, Japan, as inferred from modal analyses of records retrieved for a time interval covering a few days before, during, and for several months after the main shock. The U.S. “code-type” array comprises three triaxial accelerometers deployed at three levels in the superstructure. Such a sparse array in a tall structure limits a reliable assessment, because its performance must be based on only the average drift ratios. Based on the inferred values of this parameter, the subject building was not structurally damaged.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Responses of a tall building with U.S. code-type instrumentation in Tokyo, Japan, to events before, during and after the Tohoku earthquake of 11 March 2011 |
| Series title | Earthquake Spectra |
| DOI | 10.1193/052114EQS071M |
| Volume | 32 |
| Issue | 1 |
| Year Published | 2016 |
| Language | English |
| Publisher | Earthquake Engineering Research Institute |
| Publisher location | Berkeley, CA |
| Contributing office(s) | Earthquake Science Center |
| Description | 26 p. |
| First page | 497 |
| Last page | 522 |
| Country | Japan |
| City | Toyko |
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