短い軸組斜材を使用した木造耐震補強枠組壁の性能評価

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  • Evaluation of earthquake-resistant improvement capacity of wooden framed walls using short diagonal members
  • ミジカイ ジクグミ シャザイ オ シヨウ シタ モクゾウ タイシン ホキョウ ワクグミヘキ ノ セイノウ ヒョウカ

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This study aims for earthquake-resistant improvement to reuse timber members pulled down from old existing houses. Totally seven type of specimens were used to horizontally static loading test. The load carrying capacity, deformability, hysteretic energy absorption capacity, and failure mode of the specimens were investigated to compare each other. It is confirmed that the specimens installed three sets of crossed short-diagonal members subjected to both tension and compression with steel joint plates and bolts, those were about 2.0 of wall unit multiplier, had some range of deviation on the load-carrying capacity and other earthquake-resistant properties. On the other hand, the test specimens with diagonal members subjected to only compression and no tension, had relatively high load-carrying capacity that show about 4.0 of wall unit multiplier and also large hysteretic energy absorption quantities.

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