프리캐스트 프리스트레스트 콘크리트 포장의긴장에 의한 거동 해석 = Behavior of Precast Prestressed Concrete Pavementsunder Post-Tensioning

다국어 초록 (Multilingual Abstract)

The pavement system constructed by tieing a number of precast concrete slabs employing prestressing techniques is called the precast prestressed concrete pavement. The behavior of this type of pavement system under post-tensioning was analyzed using a finite element model. First, the optimal number of anchors was determined by investigating the distribution of compressive stresses in the pavement system due to post-tensioning. Then, the effects of the parameters such as the horizontal resistance of underlying layers, the pavement length, the slab thickness, and the bearing area of the anchorage on the distribution of compressive stresses were analyzed. The horizontal resistance of underlying layers induced the loss of compressive stresses, and the loss increased in the middle of the pavement. As the pavement length increased or the slab thickness decreased, the stress loss due to the horizontal resistance of underlying layers became larger. However, the bearing area of the anchorage where the compressive forces were applied did not much affect the distribution of compressive stresses.

참고문헌 (Reference)

1 김성민, "프리캐스트 콘크리트 포장 설계 및 시험시공" 한국도로학회 151-155, 2007

2 Hargett, "″Prestressed concrete panels for pavement construction" 43-49, 1970

3 Elkins, "″Precast repair of continuously reinforced concrete pavement Center for Transportation Research The University of Texas at Austin" 90-, 1979

4 Kondo, "″Development of a prestressing method for joints of precast prestressed concrete pavement slabs ″ International Symposium on Concrete Roads" 83-88, 1994

5 Meyer, "″ Journal of Transportation Engineering" 615-631, 1983

6 ABAQUS, "User′s Manual Version 6.5, Hibbit" Karlsson & Sorensen, Inc., Pawtucket, R.I 2005

7 Merritt, D. K, "The feasibility of using precast concrete panels to expedite highway pavement construction" The University of Texas at Austin 168-, 2000

8 Merritt, D. K, "Feasibility of precastprestressed concrete panels for expediting PCC pavement construction" The University of Texas at Austin 4-, 2001

9 Merritt, D. K, "Construction and preliminary monitoring of the Georgetown, Texas precast prestressed concrete pavement" The University of Texas at Austin 168-, 2002