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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Study of mechanical properties of wooden bolt-nut connector I: effect of size and shape of thread on withdrawal strength

Journal of Wood Science volume 56, pages 502–506 (2010)Cite this article

Abstract

The withdrawal strength of a bolt-nut connector made from wood-based material was evaluated. The thread strength of the wooden bolt-nut connector was tested to select various parameters of the connector and the type of wood material; the wood materials tested were hard maple, white oak, ebony, glue-laminated bamboo, and densified Japanese cedar. A plane model of wooden threads with various thread angles was also evaluated. The results showed that the maximum failure load of the thread increased with increasing bolt density and connection area, which was calculated from the diameter of the bolt and the thickness of the nut. The withdrawal resistance after reaching the maximum load underwent a graded decrease because the bolt threads were broken one by one. In addition, the thread strength depended on the thread angle. In the model with a thread angle of 90°, compressive deformation in the transverse direction occurred prior to shear deformation along the root of the threads; the model with this thread angle thus had higher strength than those with other angles.

References

  1. Chang WS, Komatsu K, Hsu MF, Chen WJ (2007) On mechanical behavior of traditional timber shear wall in Taiwan I: background and theory derivation. J Wood Sci 53:17–23

    Article  Google Scholar 

  2. Guan ZW, Kitamori A, Komatsu K (2008) Experimental study and finite element modeling of Japanese “Nuki” joints II: Racking resistance subjected to different wedge configurations. Eng Struct 30(7):2041–2049

    Article  Google Scholar 

  3. Shanks J, Walker P (2009) Strength and stiffness of all-timber pegged connections. J Mater Civ Eng 21(1):10–18

    Article  Google Scholar 

  4. Jensen JL, Koizumi A, Sasaki T, Tamura Y, Iijima Y (2001) Axially loaded glued-in hardwood dowels. Wood Sci Technol 35(1/2):73–83

    Article  CAS  Google Scholar 

  5. Nakazono M, Inai E, Hiroshima N (2009) Tensile behavior of traditional wooden column base joint by plural nagahozosashikomisen (in Japanese). J Struct Constr Eng 638:667–673

    Article  Google Scholar 

  6. Nishiuchi Y, Kanagawa Y, Fujiwara S, Goto J (2003) Tension strength of post-sill joints connected with full pinned mortise-andtenon joints, I. Effect of various joint conditions on maximum loads and yield loads (in Japanese). Zairyo 52(6):619–624

    CAS  Google Scholar 

  7. Nishiuchi M, Mori T (2003) High-performance bamboo nail (in Japanese). Summ Tech Pap Annu Meet Archit Inst Jpn 9:43–44

    Google Scholar 

  8. Jung K, Kitamori A, Komatsu K (2008) Evaluation on structural performance of compressed wood as shear dowel. Holzforschung 62(4):461–467

    Article  CAS  Google Scholar 

  9. Nakata K, Sugimoto H, Inoue M, Kawai S (1997) Development of compressed wood fasteners for timber construction I. Mechanical properties of phenolic resin-impregnated compressed laminated veneer lumber (in Japanese). Mokuzai Gakkaishi 43(1):38–45

    CAS  Google Scholar 

  10. Inoue M, Norimoto M, Tanahashi M, Rowell RM (1993) Steam or heat fixation of compressed wood. Wood Fiber Sci 25(3):224–235

    CAS  Google Scholar 

  11. Ohtani T, Kitamura T, Kubojima Y (2004) Characteristics of compressed wood and its application. Trans Mater Res Soc Jpn 29(5):2463–2466

    Google Scholar 

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Authors and Affiliations

  1. Asian Natural Science Environmental Center, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan

    Koji Adachi, Katsuhiro Takehira & Masafumi Inoue

  2. Japan Science and Technology Agency, Core Research for Evolutional Science and Technology, Tokyo, 102-0075, Japan

    Koji Adachi & Masafumi Inoue

  3. Biomaterial Sciences Department, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, 113-8657, Japan

    Tomoaki Soma

Authors
  1. Koji Adachi
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  2. Katsuhiro Takehira
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  3. Tomoaki Soma
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  4. Masafumi Inoue
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Correspondence to Koji Adachi.

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Adachi, K., Takehira, K., Soma, T. et al. Study of mechanical properties of wooden bolt-nut connector I: effect of size and shape of thread on withdrawal strength. J Wood Sci 56, 502–506 (2010). https://doi.org/10.1007/s10086-010-1120-7

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  • DOI: https://doi.org/10.1007/s10086-010-1120-7

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