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Design Methodology of Gap Slab for Post-Tensioned Prestressed Concrete Pavement  

Park, Hee-Beom (경희대학교 대학원 토목공학과)
Kim, Seong-Min (경희대학교 공과대학 토목공학과)
Shim, Jae-Soo (경희대학교 공과대학 토목공학과)
Publication Information
International Journal of Highway Engineering / v.12, no.2, 2010 , pp. 137-146 More about this Journal
Abstract
This study was conducted to develop the design methodology of gap slabs for the post-tensioned concrete pavement (PTCP). The gap slabs were considered as unbonded, half bonded, and bonded types. According to the types of the gap slabs, the curling stresses were investigated first under the environmental loads. The stresses due to the vehicle loads were analyzed considering both the single and tandem axles. The method to calculate the prestressing amount was suggested by comparing the combined stresses due to both loads and the allowable tensile stress of concrete. The prestressing amount for the unbonded type gap slab could be designed by considering only the gap slab; however, for the half bonded and bonded gap slabs, the whole PTCP slab should be analyzed to properly design the prestressing amount.
Keywords
post-tensioned concrete pavement; gap slab; prestressing; environmental loading; vehicle loading; design;
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  • Reference
1 Klunker, F. (1981). "Status and Developments in the Construction of Prestressed Concrete Runways in European Airport," Proceedings of the 2nd International Conference on Concrete Pavement Design, Session 6: Airport Pavement, Purdue University, West Lafayette, Indiana.
2 AASHTO (1993). Guide for Design of Pavement Structures, American Association of State Highway and Transportation Officials.
3 ABAQUS (2007). User's Manual Version 6.7, Hibbit, Karlsson & Sorensen, Inc., Pawtucket, R. I.
4 Powers, R. and Zaniewski, J. (1987). "Nine Year Performance Evaluation of Arizona's Prestressed Concrete Pavement," Transportation Research Record, No. 1136, pp. 1-11.
5 Friberg, B. F. and Pasko, T. J. (1973). "Prestressed Concrete Highway Pavement at Dulles International Airport," Highway Research Record, No. 466, pp. 1-19.
6 Merritt, D. K., McCullough, B. F., Burns, N. H., and Schindler, A. K. (2000). "The Feasibility of Using Precast Concrete Panels to Expedite Highway Pavement Construction," Report 1517-1, Center for Transportation Research, The University of Texas at Austin.
7 Merritt, D. K., McCullough, B. F., and Burns, N. H. (2002). "Construction and Preliminary Monitoring of the Georgetown, Texas Precast Prestressed Concrete Pavement," Report 5-1517-1, Center for Transportation Research, The University of Texas at Austin.
8 Brunner, R. J. (1975). "Prestressed Pavement Demonstration Project," Transportation Research Record, No. 535, pp. 62-72.