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Development of a new wonder frame constriction by applying posts and beams with follow core

Research Project

Project/Area Number 02556020
Research Category

Grant-in-Aid for Developmental Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 林産学
Research InstitutionThe University of Tokyo

Principal Investigator

OKUMA Motoaki  Univ. of Tokyo, Fac. of Agr., Professor, 農学部, 教授 (80011906)

Co-Investigator(Kenkyū-buntansha) FURUSAWA Shin  Ichijo Construction Co. Researc, 研究員
HIRANO Shigeru  Ichijo Construction Co. Researc, 主任研究員
NAKAMURA Noboru  Univ. of Tokyo, Fac. of Agr. Instructor, 農学部, 助手 (30180384)
SHIDA Satoshi  Univ. of Tokyo, Fac. of Agr. Instructor, 農学部, 助手 (00201541)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1992: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1991: ¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 1990: ¥1,100,000 (Direct Cost: ¥1,100,000)
KeywordsGlue-lam / LVL / Axial bolt / Hollowed post / Finger joint / Long span beam / Bearing wall / 中空材 / 長尺(長スパン)梁材 / 木構造 / 継手 / 仕口 / カラマツ材 / 実大試験 / 長軸ボルト / シュミレ-ション
Research Abstract

Studies were divided into following two subjects.
I. Shearing properties of wall frameworks composed of LVL posts with hollow cores Shearing tests of wall frameworks fixed with long bolts were conducted.
Experimental results are summarized as follows:
* The rising of the post where the lateral load was applied and sinking of the opposite side was so small that the rotation of the wall was almost equal to zero.
* When a post was subjected to lateral loading, the post remained straight and did not bend. Consequently, the post resistance to the lateral load may have been due to the partial compression strength generated at the bottom of the post towards the horizontally attached sill and girder. For this reason, the shearing strength was smaller than expected.
II. End jointing of glue-lam beam and bending properties of the jointed beams. Larch glue-lams with two or four holes longitudinaly on the cross section were end jointed by finger jointing and fastened with long bolts. These end jointed beams were tested by four points bending. The MOE was shown to be increased by the moment at the both ends of the beam which generated by the tensile stress of the bolts. Also, the MOR of the jointed beam increased. After the failure of finger jointing, the beam still keeps a load bearing capacity to a certain extent on account of the existence of bolts. This system is recognized to be safe and very reliable.

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 佐久間 博文: "軸ボトル併用フィンガージョイントによって縦継ぎされた集成材の曲げ性能" 木材工業. 47. 465-468 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 大熊 幹章: "軸ボトルを用いた大断面集成材梁の製造と曲げ性能" 日本建築学会大学会術講演検概集. 473-477 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Sakuma and M.Okuma: "Bending Properties of Glued Laminated Beam, End Jointed by finger Jointing and axial Bolts" Wood Industry. 47-10. 465-468 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] M.Okuma: "Manufacturing and Bending Properties of Glued Laminated Beam Constructed with Axial Bolts." Technical Papers of Annual Meeting, Architectural Institute of Japan 1990. 473-474 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 佐久間 博文: "軸ボルト併用フィンガージョイントによって縦継ぎされた集成材の曲げ性能" 木材工業. 47. 465-468 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 大熊 幹章: "軸ボルトを用いた大断面集成材梁の製造と曲げ性能" 日本建築学会大会学術講演梗概集. 473-474 (1990)

    • Related Report
      1992 Annual Research Report
  • [Publications] 佐久間 博文,大熊 幹章: "軸ボルトによる構造用集成材の接合(1)ボルト孔を有する構造用集材の製造と性能" 木材学会講演要旨集. 41. 231-231 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 大熊 幹章,中島 史郎: "軸ボルトを用いた大断面集成材梁の製造と曲げ性能" 日本建築学会大会学術講演梗概集. 中国. 473-474 (1990)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐久間 博文,大熊 幹章: "軸ボルトによる構造用集成材の接合(2)縦継きと仕口の接合効率" 木材学会講演要旨集. 42. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐久間 博文,大熊 幹章: "軸ボルトを用いた大断面集成材の接合性能" 日本木材学会誌. 38. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 佐久間 博文,大熊 幹章: "軸ボルトによる構造用集成材の接合(1)ボルト孔を有する構造用集成材の製造と性能" 木材学会講演要旨集. 42. (1991)

    • Related Report
      1990 Annual Research Report
  • [Publications] 佐久間 博文,大熊 幹章,久原 紀彦: "軸ボルトを用いた大断面集成材の接合性能" 日本木材学会誌. 37. (1991)

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2018-02-02  

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