YIELDING MECHANISM OF EMBEDMENT OF WOOD AND FORMULATION OF ELASTO-PLASTIC EMBEDDED DISPLACEMENTS

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  • TANAHASHI Hideaki
    Prof., Global Innovation Research Organization, Ritsumeikan University, Dr. Eng.
  • OOKA Yu
    Graduate Student, Science and Engineering, Ritsumeikan University, M. Eng.
  • IZUNO Kazuyuki
    Prof., Department of Civil Engineering, Ritsumeikan University, Dr. Eng.
  • SUZUKI Yoshiyuki
    Prof., Global Innovation Research Organization, Ritsumeikan University, Dr. Eng.

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Other Title
  • 木材のめり込み降伏メカニズムと均等めり込み弾塑性変位の定式化
  • モクザイ ノメリコミ コウフク メカニズム ト キントウ メリコミ ダン ソセイ ヘンイ ノ テイシキカ

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Abstract

The restoring force characteristics of embedment of wood are fundamental and very important to evaluate the seismic performances of traditional timber structures. In order to evaluate them effectively, elasto-plastic embedded displacements due to equally loaded rigid plate are formulated by applying Pasternak model to wood members with a finite length, taking the strain hardening and the orthotropic properties into account. In the formulation, the stiffness function is introduced to express the embedment stiffness simply in both elastic and plastic states. Then the formulations are discussed with embedment test results.

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