Browse > Article
http://dx.doi.org/10.5658/WOOD.2011.39.6.505

Aging Characteristics of Bolt Pretension of Stress-laminated Timber  

Eom, Chang-Deuk (Division of Wood Engineering, Department of Forest Products, Korea Forest Research Institute)
Lee, Sang-Joon (Division of Wood Engineering, Department of Forest Products, Korea Forest Research Institute)
Kim, Kwang-Mo (Division of Wood Engineering, Department of Forest Products, Korea Forest Research Institute)
Publication Information
Journal of the Korean Wood Science and Technology / v.39, no.6, 2011 , pp. 505-511 More about this Journal
Abstract
In this study, it is carried out to analysis of the bolt pretension of the stress-laminated timber. Bolt pretension of stress-laminated timber was decreased by time. The loss of force is caused by moisture content, shrinkage of wood. After re-stressing the stress-laminated timber, the rate of force decrement was slowed significantly. To use of stress-laminated timber for the service, it is necessary to make an accurate estimate of force. It is clear that is different between actual value and predicted value changes by existing model for bolt pretension of stress-laminated timber. Accordingly, considering the time and the external environment, the development of prediction model is needed.
Keywords
bolt pretension; stress-laminated timber; moisture content;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 김광모, 심국보, 김병남. 2010. 방부처리 리기다소나무의 휨거동 특성. 목재공학 38(4): 306-315.
2 김광모. 2011. 목조 차도교량 사례-노르웨이 에벤스타 브리지. 산림. 2011년 5월호. p. 86-89.
3 엄창득, 김광모, 이상준, 심상로, 박문재, 여환명. 2011. 횡방향 압체력 경시변화. 2011 한국목재공학회 학술발표대회 요지집. p. 168-169.
4 AASHTO. 2008. AASHTO LRFD Bridge Design Specifications, 4th edition, 2008 Interim Revisions, Section 9: Decks and Deck System. Washington, D.C. American Association of State Highway and Transportation Official.
5 Dyken T. and H. Kepp. 2010. Monitoring the moisture content of timber bridges. Proceeding of international conference on timber bridges: 223-235.
6 Kainz. J. A., J. P. Wacke, and M. A. Ritter. 1998. In situ performance of stress-laminated timber bridge decks. Proceedings of SEM Spring Conference on Experimental and Applied Mechanics. p. 265-267.
7 Pousette. A., P. Jacobsson. M. Gustafsson. J. Horttanainen, and K. Dahl. 2002. Stress laminated bridge decks, part II. Nordic timber bridge project report, Nordic wood. ISBN 82-7120-034-8.
8 Ritter. M. A. 1990. Timber bridges:Design, construction, inspection, and maintenance. U.S. Department of Agriculture, Forest Service, Engineering Staff, EM 7700-8.