抄録
This paper reports damage to an RC school building, particularly severe shear failure to secondary flat walls, by the 2016 Kumamoto
earthquake. The vibration characteristics of building were evaluated by micro-tremor observation. Additionally, the damage to the
building was investigated through numerical simulations. A series of parametric analyses revealed that the amount of the secondary
flat walls would affect the collapse mechanism. Ultimate deformability of the building decreased when a partial collapse mechanism
was formed, which was well evaluated by an evaluation method proposed herein.