Browse > Article

Joint Width Design for Post-Tensioned Concrete Pavement  

Kim, Dong-Ho ((주)삼우아이엠씨 기술연구소)
Kil, Yong-Su (강원대학교 공과대학 토목공학과)
Kim, Jin-Woung (강원대학교 공과대학 토목공학과)
Yun, Kyeong-Ku (강원대학교 공과대학 토목공학과)
Publication Information
International Journal of Highway Engineering / v.12, no.3, 2010 , pp. 147-154 More about this Journal
Abstract
In post-tensioned concrete pavement(PTCP), one of the most important design variables is the initial joint width, in addition to the tensioning spacing. The joint width between PTCP slabs directly affects noise and ride quality. If the joint width is too wide, noise increases and ride quality decreases. If the initial joint width is too narrow, on the other hand, under high temperature, PTCP slabs can blow up, or failures near the joint can occur due to excessive compressive stresses. This study was conducted to determine the optimal initial joint width of PTCP and to investigate the joint width behavior under temperature changes. The experiments were performed using one-year-old PTCP slabs. The concrete temperatures were measured using the temperature measurement sensors installed at various depths. The joint widths were measured using vernier-calipers at different times of a day and the relationship between the joint width and temperature was analyzed. From this study, the design methodology to determine the optimal initial joint width of PTCP could be proposed.
Keywords
post-tensioned concrete pavement; joint width; design;
Citations & Related Records
연도 인용수 순위
  • Reference
1 김동호, 배종오, 김기헌, 이봉학, 김성민, 원문철, "외국의 프리스트레스트 콘크리트 포장 기술과 국내 적용 방안", 대한토목학회 학술발표회, 2009.
2 김동호, 배종오, 이봉학, 김성민, 한승환, 유태석, "포스트텐션 콘크리트 포장의 설계와 시공", 대한토목학회 학술발표회, 2009.
3 김동호, 배종오, 이봉학, 한승환, 김영강, 김덕용, "포스트텐션 콘크리트 포장 공법의 현장적용", 한국도로학회 학술발표회, 2009.
4 Chavez, C. M., McCullough, B. F. and Fowler, D. W., "Design of a Post-Tensioned Prestressed Concrete Pavement, Construction Guidelines, and Monitoring Plan," Report 0-4035-1, Center for Transportation Research, The University of Texas at Austin, 2003.
5 Choi, S. C. and Won, M. C., "Time-Dependent Behavior of Post-Tensioned Concrete Pavements under Environmental Loading," Proceedings of the 89th Annual Meeting of the Transportation Research Board, Washington, D.C., 2010.
6 Mehta, P. K., Concrete Structure, Properties, and Materials, Prentice Hall, Inc., 1993.
7 Nawy, E. G., Prestressed Concrete, Prentice Hall, Inc., 2000.
8 Okamoto, P. A., Tayabji S. D. and Barenberg, E. J., "Instrumentation and Evaluation of Prestressed Pavement U.S.220, Blair County, Pennsylvania," Research Report No. 87-19, Pennsylvania Department of Transportation, 1991.