DYNAMIC SEISMIC DIAGNOSIS AND VERIFICATION FOR EXISTING WOOD HOUSE AND RETOROFITTED HOUSE

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  • 既存木造住宅と補強した住宅の動的耐震診断とその精度検証
  • キソン モクゾウ ジュウタク ト ホキョウシタ ジュウタク ノ ドウテキ タイシン シンダン ト ソノ セイド ケンショウ

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Abstract

Shaking table test for two specimens, consisting of an original vulnerable conventional house and a rehabilitated house, was carried out as shown in the previous paper. They have been in service, moved from the site, and then reconstructed on the table. Original one fell down and rehabilitated one was survived during motion recorded at JR Takatori Station in 1995 Hyogoken-Nanbu Earthquake. In this paper, the results of dynamic seismic diagnosis methods which are able to estimate maximum response against the earthquake are summarized. As the result of comparison of seismic diagnosis and shaking table test, original seismic performance assessment score of 0.43 has high risk of collapse during severe earthquake such as Hyogoken-Nanbu Earthquake and Niigata Chuetsu Earthquake. Through the time-history analysis for past decade earthquakes, seismic performance assessment score of 1.00 has the possibility of collapse, and recent reconnaissance report which means there are no severe damages against over 1G ground acceleration is also verified in this analytical study.

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