東三河伝統構法民家の耐震性能評価のための静的繰り返し加力実験

概要

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The objective of this study is to confirm the seismic capacity of a wooden house constructed with Japanese traditional structural method which is recognized less earthquake proof in the Building Standard Law today. In September 2004, horizontal loading experiment of a wooden house built in 1898 in Higashi-Mikawa region in Japan was conducted to investigate the seismic performance of such a house built with traditional structural method. The maximum load P_<max> was 106.6kN and the average deformation angle at P_<max> was about 1/10rad. The failure occurred at the joint of column and Sashi-Gamoi, when the average deformation angle was about 1/25rad. After bending failure of all columns occurred around P_<max>, the house still kept the loading capacity more than 80% of P_<max>. Total weight of the house was about 597kN which was examined by weighing members and parts of it after the loading test. The house concerned is much more anti-seismic than expected in the Law because the base shear coefficient at P_<max> was C_0=0.18.
2007-02-28