Estimating seismic damage of timber structures by stochastic model

• Project/Area Number: 22580182
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Wood science
• Research Institution: Shizuoka University
• Principal Investigator: YASUMURA Motoi 静岡大学, 農学部, 教授 (40143408)
• Co-Investigator(Kenkyū-buntansha): SUZUKI Shigehiko 静岡大学, 農学部, 教授 (40115449) ; KOBAYASHI Kenji 静岡大学, 農学部, 助教 (90576240)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 建築構造・材料 / 木質構造 / 耐震 / 確率 / モデル化 / 信頼性解析

Research Abstract

Monte-Carlo simulation and reliability based analysis showed that the yield mode of the dowel-type joints subjected to the bearing load parallel to the wood grain according to “Standard for structural design of timber structures” of Architectural Institute of Japan gives appropriate failure mode estimation, but it gives unsafe design in the case of the bearing perpendicular to the wood grain if the fracture estimation of wood is not conducted by stochastic calculation. It was also found that the unsafe failure mechanism such as the failure of wooden posts may occur if the post and beam moment resisting joints is designed without considering the stochastic approach to estimate the failure mode of the joint. Lacking test of CLT shear walls showed that the failure mechanism of CLT shear walls can be estimated well by stochastic calculation.

Research Products

• [Journal Article] 鋼板添え板ラグスクリュー接合部の一面せん断性能における接合具本数と配置条件 (2013)
  • Author(s): 小林研治、安村基
  • Journal Title: 構造工学論文集、日本建築学会 Volume: 59B Pages: 537-543
• [Journal Article] 鋼板添え板ラグスクリュー接合部の一面せん断性能における接合具本数と配置条件 (2013)
  • Author(s): 小林研治、安村基
  • Journal Title: 構造工学論文集 Volume: ５９B Pages: 537-543
  • Peer Reviewed
• [Journal Article] Determination of failure mechanism of CLT shear walls subjected to seismic action (2012)
  • Author(s): Motoi Yasumura
  • Journal Title: CIB-W18 Proceedings Meeting forty-five Pages: 1-9
• [Journal Article] 在来軸組構法立体模型の仮動的水平加力実験と地震応答解析 (2012)
  • Author(s): 鎌田貴久、安村基
  • Journal Title: 木材学会誌 Volume: 58巻2号 Pages: 74-83
  • NAID: 10030591547
• [Journal Article] Pseudodynamic tests and earthquake response analysis of timber structures III: three-dimensional conventional wooden structures with plywood-sheathed shear walls (2012)
  • Author(s): Kamada T, Yasumura M, Shinpei Y, Davenne L, Uesugi M
  • Journal Title: J. Wood Sci. Volume: Vol.57 Pages: 484-492
  • NAID: 10030451229
• [Journal Article] Determination of failure mechanism of CLT shear walls subjected to seismic action (2012)
  • Author(s): Motoi Yasumura
  • Journal Title: CIB-18 Proceedings Forty-five 2012 Volume: 1 Pages: 1-9
  • Peer Reviewed
• [Journal Article] Determination of failure mode of timber joints by Monte Carlo simulation (2012)
  • Author(s): Motoi Yasumura, Julien Baroth, Kenji Kobayashi
  • Journal Title: Proceeding of 2012 World Conference on Timber Engineering Volume: 1 Pages: 377-384
• [Journal Article] Pseudodynamic tests and earthquake response analysis of timber structures III : three-dimentional conventional wooden structures with plywood-sheathed shear walls (2012)
  • Author(s): Kamada T, Yasumura M, Shinpei Y, Davenne L, Uesugi M
  • Journal Title: J.Wood Sci. Volume: 57 Pages: 484-492
  • Peer Reviewed
• [Journal Article] Evaluation of plywood sheathed shear walls with screwed joints tested according to ISO 21581 (2011)
  • Author(s): Kobayashi K, Yasumura M
  • Journal Title: Proceedings of the 44th CIB-W18 meeting Volume: 44-15-8 Pages: 1-10
  • Peer Reviewed
• [Journal Article] Influence of the boundary condition on the racking strength of shear walls with an opening (2010)
  • Author(s): 安村基
  • Journal Title: CIB-W18 Proceedings Meeting Forty-three 2010 Volume: 1 Pages: 1-10
• [Presentation] すぎ CLT-スクリュー接合部の一面せん断性能 (2013)
  • Author(s): 小林研治,馬場基史,安村 基
  • Organizer: 第63回日本木材学会大会研究発表要旨
  • Year and Date: 2013-03-27
• [Presentation] 鋼板を添板に用いたラグスクリュー接合部の一面せん断性能における接合具本数と配置の影響 (2012)
  • Author(s): 小林研治、安村基
  • Organizer: 日本建築学会学術講演梗概集
  • Year and Date: 2012-09-13
• [Presentation] CLT壁パネルの面内せん断試験における鉛直荷重の影響 (2012)
  • Author(s): 岡部実、安村基、小林研治、孕石剛、藤田和彦
  • Organizer: 日本建築学会学術講演梗概集
  • Year and Date: 2012-09-12
• [Presentation] Determination of failure mode of timber joints by Monte Carlo simulation (2012)
  • Author(s): Motoi Yasumura, Julien Baroth, Kenji Kobayashi
  • Organizer: Proceeding of 2012 World Conference on Timber Engineering
  • Place of Presentation: 377-384
  • Year and Date: 2012-07-16
• [Presentation] 鋼板添え板ラグスクリュー接合部における接合具本数および配置条件の影響 (2012)
  • Author(s): 小林研治、杉浦英美、安村基
  • Organizer: 日本木材学会
  • Place of Presentation: 北海道大学(札幌)
  • Year and Date: 2012-03-16
• [Presentation] Racking resistance of panel-sheathed shear walls with opening (2010)
  • Author(s): 安村基
  • Organizer: World Conference Timber Engineering 2010
  • Place of Presentation: 国際会議場、リバデルガルダ、イタリア
  • Year and Date: 2010-06-23
• [Presentation] 摩擦条件の異なる合板張り木ねじ接合部の一面せん断性能 (2010)
  • Author(s): 小林研治
  • Organizer: 第61回日本木材学会大会
  • Place of Presentation: 京都大学(京都)
  • Year and Date: 2010-03-18
• [Presentation] すぎCLT-スクリュー接合部の一面せん断性能
  • Author(s): 小林研治、馬場基史、安村基
  • Organizer: 第63回日本木材学会大会研究発表要旨
  • Place of Presentation: 岩手大学（盛岡）
• [Book] 木質構造接合部設計事例集 (2012)
  • Author(s): 安村基、青木謙治、小林研治、鳥羽展彰、小野塚真規、孕石剛志、中川貴文 ,ほか
  • Publisher: 丸善
• [Book] 「木質構造基礎理論」(第5章 トラス構造と筋かい耐力壁の理論) (2010)
  • Author(s): 小林研治(共著)
  • Publisher: 日本建築学会編
• [Book] 「木質構造基礎理論」(第4章、第6章) (2010)
  • Author(s): 安村基(共著)
  • Publisher: 日本建築学会編