Shakedown analysis for design of flexible pavements under moving loads
In this paper, a numerical method based on shakedown theory has been developed to calculate shakedown load limits of flexible pavements under moving surface loads. The shakedown results can serve as a design basis for flexible road pavements for the prevention of excessive plastic deformation. This numerical method utilises elastic stress fields obtained from finite element analyses and calculates optimum shakedown multiplier for each pavement layer by means of a self-equilibrated critical residual stress field. Finally, the shakedown load limit of a flexible pavement is found as the minimum shakedown multiplier among all layers. The results of numerical analyses examine the effect of surface frictional coefficient, material properties and layer thicknesses on the shakedown load limits, and meanwhile provide an insight into the differences between two-dimensional and three-dimensional pavement models. A simple design procedure using the shakedown method is also developed for layered, flexible road pavements.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
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Supplemental Notes:
- Abstract reprinted with permission from Taylor & Francis.
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Authors:
- Wang, Juan
- Yu, Hai-Sui
- Publication Date: 2013-9
Language
- English
Media Info
- Media Type: Digital/other
- Features: References;
- Pagination: pp 703-722
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Serial:
- Road Materials and Pavement Design
- Volume: 14
- Issue Number: 3
- Publisher: Taylor & Francis
- ISSN: 1468-0629
- EISSN: 2164-7402
- Serial URL: http://www.tandfonline.com/loi/trmp20
Subject/Index Terms
- TRT Terms: Dynamic loads; Finite element method; Flexible pavements; Load limits; Pavement design; Plastic deformation; Shakedown tests
- Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;
Filing Info
- Accession Number: 01498773
- Record Type: Publication
- Files: TRIS
- Created Date: Nov 21 2013 9:07AM