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

Earthquake Spectra
By: , and 

Links

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

Additional publication details

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