Damage classification of the reclaimed lands of residential area in the Sendai city after the 2011 off the Pacific coast of Tohoku Earthquake. —Damage rates of wooden building and residential land on filled valley ,cutting hills and their boundary zone. —

Abstract

In the Tohoku earthquake, reclaimed lands as well as residential houses build on such a land were severely damaged. The present study investigates causes of those damages by classifying the properties of the input motion, ground conditions, and construction ages. As a result, compared with the damage rate of the houses located on a land constructed by cutting hills, those on filled valley and their boundary show much higher, more than double, damage rate.