본문 바로가기
HOME> 논문 > 논문 검색상세

논문 상세정보

Effect of Humidity Conditions on Bending Creep Performance of Finger-Jointed Woods

Park, Han-Min   (College of Agri. & Life Sci., Inst. of Agri. & Life Sci., Gyeongsang Nat'l Univ.  ); Byeon, Hee-Seop   (College of Agri. & Life Sci., Inst. of Agri. & Life Sci., Gyeongsang Nat'l Univ.  );
  • 초록

    To evaluate the durability of finger-jointed woods according to change of humidity conditions, four types of finger-jointed woods glued with different kinds of adhesives and finger pitches were made with Sitka spruce, and the effect of humidity conditions on creep performances was investigated. The shape of creep curves differed among humidity conditions, and the inclination of creep curves was greatest in 85%RH, and lowest in 65%RH. Their creep curves showed a linear behavior beyond approximately one hour, regardless of humidity conditions. The A values of the creep curves fitted to power law increased with increasing relative humidity, whereas the A' values were in order of 30 > 85 > 65%RH unlike the A values. The initial deformation increased with increasing relative humidity, whereas the creep deformation unlike the initial deformation was in order of 85 > 30 > 65%RH, and it was found that the creep deformation of finger-jointed woods indicated the smaller amount in air-dry moisture content rather than in a low moisture content less than 30%RH. Finger-jointed woods with 6.8 mm (L) pitch had the greater creep amount than in those with 4.4 mm (S) pitch in all humidity conditions. The difference of creep amount between both adhesives in all humidity conditions was small. Relative creep at 240 hr was greatest as 62.2~71.9% in 85%RH, and the values indicated 2.1~2.6 times that of 30%RH and 3.0~3.6 times that of 65%RH and were equal or slightly greater than that of solid spruce.


  • 주제어

    finger-jointed wood .   humidity .   adhesive .   pitch .   creep .   relative creep.  

  • 참고문헌 (20)

    1. Arima, T., M. Sato, and K. Mashita. 1981. Studies on evaluation method for long-term performance of wood-based materials and elements. Report of the Building Research Institute No. 95: 25-80 
    2. Jang, S. S. 1989. Study on the change in stiffness of nailed jointed due to creep. Mokchae Konghak 17(4): 35-43 
    3. Nakai, T. 1978. Bending creep test on woodbased boards II. Wood Industry, Japan 33(6): 247-249 
    4. Park, H. M. and M. Fushitani. 2005b. Effects of component ratio of the face and core laminae on bending creep performances of three-ply crosslaminated woods made with sugi. Wood Industry Japan 60(12): 636-641 
    5. Park, H. M. and M. Fushitani. 2007. Bending creep property of wood-aluminum hybrid laminated material. Mokuzai Gakkaishi 53(1): 14-24 
    6. Schniewind, A. P. 1968. Recent progress in the study of the rheology of wood. Wood Sci Technol 2: 188-206 
    7. Hong, S. I. and T. Arima. 1993. Creep of nailplate-jointed glulams and solid glulams under changing humidity. Mokuzai Gakkaishi 39(9):1020-1026 
    8. Kitahara, K. and W. T. Perng. 1965. On the creep of hardboard. Mokuzai Gakkaishi 11(6): 88-92 
    9. Aratake, S. and T. Arima. 1996. Creep of sugi full size members II. Behaviors under various loading conditions of loads and estimations by deformation models. Mokuzai Gakkaishi 42(8): 755-761 
    10. Park, H. M., M. Fushitani, K. Sato, T. Kubo, and H. S. Byeon. 2002. Bending creep performances of cross-laminated sugi wood. Mokuzai Gakkaishi 48(3): 166-177 
    11. Moriizumi, S. 1981. Creep properties of woodbased boards under plate shear. Journal of the Hokkaido Forest Products Research Institute No. 359: 6-14 
    12. Park, H. M., M. Fushitani, K. Sato, T. Kubo, and H. S. Byeon. 2006. Bending creep performances of cross-laminated woods made with five species. Journal of Wood Science 52: 220-229 
    13. Aratake, S., H. Morita, and T. Arima. 2002. Creep of various structural members in ambient conditions 1. Estimation of future deflections considering the longevity of wooden structures. Mokuzai Gakkaishi 48(4): 233-240 
    14. Hoyle, R. J., R. Y. Itani, and J. T. Anderson. 1994. The effect of moisture cycling on creep of small glued laminated beams. Wood Fiber Sci 26(4): 556-562 
    15. Fushitani, M. and Y. Bono. 1975. Bending creep of laminated woods. Wood Industry, Japan 30(5):22-24 
    16. Hong, S. I. and J. C. Park. 2006. Studies on evaluation for long-term structural performance of Pinus densiflora Sieb. et Zucco (I) - Shear creep and mechano-sorptive behavior of drift pin jointed lumber. Mokchae Konghak 34(5): 11-18     
    17. Saito, F, M. Ikeda, and K. Ogawa. 1980. Timerelated flexural behaviour of particleboards under long term load. Mokuzai Gakkaishi 26(11): 714-718 
    18. Park, H. M., S. W. Oh, and H. S. Byeon. 2005a. Effect of adhesives and finger pitches on bending creep performances of finger-jointed woods. Mokchae Konghak 33(5): 57-65     
    19. Aratake, S. and T. Arima. 1995. Creep of sugi sawn lumber in process of humidity changes. Mokuzai Gakkaishi 41(4): 359-366 
    20. Suzuki M., K. Nakato, and K. Aikawa. 1965. Frequency dependence of dynamic Young's modulus of wood and its relation to creep. Mokuzai Gakkaishi 11(3): 76-82 

 활용도 분석

  • 상세보기

    amChart 영역
  • 원문보기

    amChart 영역

원문보기

무료다운로드
  • NDSL :
유료다운로드

유료 다운로드의 경우 해당 사이트의 정책에 따라 신규 회원가입, 로그인, 유료 구매 등이 필요할 수 있습니다. 해당 사이트에서 발생하는 귀하의 모든 정보활동은 NDSL의 서비스 정책과 무관합니다.

원문복사신청을 하시면, 일부 해외 인쇄학술지의 경우 외국학술지지원센터(FRIC)에서
무료 원문복사 서비스를 제공합니다.

NDSL에서는 해당 원문을 복사서비스하고 있습니다. 위의 원문복사신청 또는 장바구니 담기를 통하여 원문복사서비스 이용이 가능합니다.

이 논문과 함께 출판된 논문 + 더보기