SEISMIC BEHAVIOR AND CHARACTERISTIC OF WOOD HOUSE WITH BRACING SHEAR WALL

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  • ISODA Hiroshi
    Prof., Research Institute for Sustainable Humanosphere, Kyoto Univ., Dr. Eng.
  • KIBUNE Tatsuya
    Graduate Student, Graduate School of Engineering, Shinshu Univ.
  • MINEMURA Hiroki
    Graduate Student, Graduate School of Engineering, Shinshu Univ.

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Other Title
  • ２つ割りと３つ割り筋かいを持つ木造住宅の振動台実験
  • 2つ割りと3つ割り筋かいを持つ木造住宅の振動台実験 : 木造建物の地震時挙動に関する研究(その5)
  • 2ツ ワリ ト 3ツ ワリ スジカイ オ モツ モクゾウ ジュウタク ノ シンドウダイ ジッケン : モクゾウ タテモノ ノ ジシンジ キョドウ ニ カンスル ケンキュウ(ソノ 5)
  • Study on seismic behavior of wooden construction　Part 5
  • －木造建物の地震時挙動に関する研究　その5－

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Description

Timber frame with braces has been used widely for newly and existing wood buildings in Japan. This paper presents their seismic performance through shaking table tests and characteristics of cyclic loading and ductility to evaluate seismic design value. Timber frame with braces of 1/3 of column dimension having Co=0.56 seismic performance almost collapsed during NS component of 1995 JMA Kobe. The frame with braces of 1/2 of column dimension having Co=0.69 was survived against repetition of the JMA Kobe and aftershock of 2004 Niigata Chuetu earthquake, but the frame with Co=0.46 was damaged during the 1995 JMA Kobe. Although the seismic wall ratio including influence of ductility behavior was said to ignore extra coefficient of bracing shear wall, it was found that extra shear force is required from the results of equivalent damping and time history analysis.

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