DOI QR코드

DOI QR Code

Quantitative Analysis for Termites Damage of Wooden Heritage using Ultrasonic Pulse Velocity

초음파 전파속도법을 이용한 목조 문화유산 흰개미 피해의 정량 평가

  • Received : 2015.06.15
  • Accepted : 2015.10.31
  • Published : 2015.10.31

Abstract

Quantitative analysis of termites damage is important in terms of conservation and maintenance of wooden cultural heritage buildings, because termites makes cavities and decreases the section area of wooden structural members. The purpose of this study is to forecast the range and spread of termites damage in the wooden structural members by using ultrasonic pulse velocity method. Ultrasonic pulse velocity has been used as one of non-destructive test to analysis the internal defect by using difference velocity between medium material and cavity. This method would be effective to analysis termites damages. From the result of the ultrasonic velocity test, the loss rate of area effected by termites damage had a strong correlation with ultrasonic velocity. And it is possible to predict the loss rate of area from by termites damage by using regression equation in the case of structural member of fine tree.

Keywords

References

  1. Mori Takuro, Kousoku Akihiro, Yanase Yoshiyuki, Komatsu Kohei, Relationships between Strength Properties and Density or Ultrasonic Velocity of Timber Attacked by Termite, Journal of the Japan Society for Testing Materials, Vol.59, No.4, 2010, pp.297-302 https://doi.org/10.2472/jsms.59.297
  2. Lee Dongheop, Kang Changho, Son Dongwon, Distribution and Damage of Termite in Korea, Proceeding of Korean Society of Wood Science Technology, 1998, pp.216-220
  3. Kyusik Lee, Soyoung Jeong, Yongjae Chung, Pest Control Management for Preservation of Wooden Cultural Properties, Conservation Studies, Vol.21, 2000, pp.6-65
  4. Seoul National University, Development of Technique for Estimating the Biological Deterioration in Domestic Wood using NDE, Ministry of Agriculture and Forestry, 2005. 11
  5. Yoshiyuki Yanase, Takuro Mori, Tsuyoshi Yoshimura, Yuko Fujiwara, Yoshihisa Fuji, Toshiyuki Torigoe, Setsuo Imazu, Relationship Between Porosity in Wood Attacked by the Drywood Termite Incisitermes Minor and Residual Bending Strength, Journal of the Society of Materials Science, Vol.63, No.4, 2014. 4, pp.320-325 https://doi.org/10.2472/jsms.63.320
  6. Marko Teder, Kalle Pilt, Matis Miljan, Vello Pallav, Jaan Miljan, Investigation of the Physical-Mechanical Properties of Timber using Ultrasound Examination, Journal of Civil Engineering and Management, Vol. 18, No. 6, 2012, pp.795-801 https://doi.org/10.3846/13923730.2012.736233
  7. Carrasco, E. V. M., Passos, L.B., Bremer, C. F., Alves, R. C., Mantilla, J.N.R, Ultrasound classification for recycled glulam sleepers, International Journal of Applied Science and Engineering Research, Vol. 2, No. 5, 2013. 10, pp.524-533
  8. Yanase Yoshiyuki, Mori Takuro, Minami Munekazu, Investigation of Damages by Drywood Termite in Japanese Wooden Structure, Journal of Housing Research Foundation, No.38, 2011, pp.245-256
  9. Yasutoshi Sasaki, Mariko Yamasaki, Anri Yoshino, Masayuki Sumioka, Hideaki Tanahashim, Yu Ooka, Yoshiyuki Suzuki, Estimation of Used Wood Strength for Traditional Construction Preservation, Journal of Disaster Mitigation for Historical Cities, Vol.6, 2012. 7, pp.321-328