A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements
Recently a shakedown approach has been proposed for structural design of flexible road pavements (Wang and Yu, 2013a). This new approach makes use of both elastic and plastic properties of materials, and therefore represents an advance from the existing analytical design approach in the UK where pav...
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/46843/ |
| _version_ | 1848797410182037504 |
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| author | Wang, Juan Liu, Shu Yu, Hai-Sui |
| author_facet | Wang, Juan Liu, Shu Yu, Hai-Sui |
| author_sort | Wang, Juan |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Recently a shakedown approach has been proposed for structural design of flexible road pavements (Wang and Yu, 2013a). This new approach makes use of both elastic and plastic properties of materials, and therefore represents an advance from the existing analytical design approach in the UK where pavement life is related with elastic strains at critical locations using empirical equations. However, no direct comparison between designs using these two approaches has been made to date. In this paper, following a brief review of both approaches, the shakedown approach based on Wang and Yu (2013a) is used to design layer thicknesses for a typical asphalt pavement considered in the analytical approach TRRL Report LR1132. Typical values of plastic parameters are chosen for pavement materials at temperature 20°C, while stiffness moduli of materials are kept identical with the analytical design. The resulting shakedown designs are then compared with the thickness design chart using the analytical design approach. And the influence of temperature on the shakedown-based thickness design is also discussed in detail. It is found that if the shakedown design approach is conducted against the maximum wheel pressure at a relatively high temperature, the resulting pavement structure will probably not fail due to excessive rutting within the service life. |
| first_indexed | 2025-11-14T20:03:26Z |
| format | Article |
| id | nottingham-46843 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:03:26Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-468432020-05-04T18:04:51Z https://eprints.nottingham.ac.uk/46843/ A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements Wang, Juan Liu, Shu Yu, Hai-Sui Recently a shakedown approach has been proposed for structural design of flexible road pavements (Wang and Yu, 2013a). This new approach makes use of both elastic and plastic properties of materials, and therefore represents an advance from the existing analytical design approach in the UK where pavement life is related with elastic strains at critical locations using empirical equations. However, no direct comparison between designs using these two approaches has been made to date. In this paper, following a brief review of both approaches, the shakedown approach based on Wang and Yu (2013a) is used to design layer thicknesses for a typical asphalt pavement considered in the analytical approach TRRL Report LR1132. Typical values of plastic parameters are chosen for pavement materials at temperature 20°C, while stiffness moduli of materials are kept identical with the analytical design. The resulting shakedown designs are then compared with the thickness design chart using the analytical design approach. And the influence of temperature on the shakedown-based thickness design is also discussed in detail. It is found that if the shakedown design approach is conducted against the maximum wheel pressure at a relatively high temperature, the resulting pavement structure will probably not fail due to excessive rutting within the service life. Elsevier 2016-09-01 Article PeerReviewed Wang, Juan, Liu, Shu and Yu, Hai-Sui (2016) A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements. Procedia Engineering, 143 . pp. 971-978. ISSN 18777058 shakedown design ; analytical design ; flexible road pavements ; temperature https://doi.org/10.1016/j.proeng.2016.06.085 10.1016/j.proeng.2016.06.085 10.1016/j.proeng.2016.06.085 10.1016/j.proeng.2016.06.085 |
| spellingShingle | shakedown design ; analytical design ; flexible road pavements ; temperature Wang, Juan Liu, Shu Yu, Hai-Sui A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements |
| title | A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements |
| title_full | A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements |
| title_fullStr | A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements |
| title_full_unstemmed | A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements |
| title_short | A comparison between a shakedown design approach and the analytical design approach in the UK for flexible road pavements |
| title_sort | comparison between a shakedown design approach and the analytical design approach in the uk for flexible road pavements |
| topic | shakedown design ; analytical design ; flexible road pavements ; temperature |
| url | https://eprints.nottingham.ac.uk/46843/ https://eprints.nottingham.ac.uk/46843/ https://eprints.nottingham.ac.uk/46843/ |