Abstract
This study investigates structural responses of super high-rise residential buildings during the 2011 off the pacific coast of Tohoku earthquake based on the questionnaire survey for the residents. Final results of the questionnaire survey conducted for 22 buildings in the Kanto and the Kansai areas indicate that action difficulty and overturning ratio of furniture at the higher floors were higher than that at the lower floors, and that cracking of the concrete and the wallpaper in the room were more frequent in lower floors. Peak floor responses can be fairy reproduced by action difficulty and overturning ratio of furniture in the questionnaire survey. Cracking of the concrete and the wallpaper is closely related with maximum averaged inter-story drift angles (IDA) evaluated from the recorded motion. The IDA is also correlated with averaged pseudo velocity spectra with a period range of 1.5-3.5 s, which was highlighted in the coastal area of the Tokyo Bay, where possible crack damages were inferred in the super high-rise residential buildings.
