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Title: TRANSVERSE JOINT ANALYSIS FOR MECHANISTIC-EMPIRICAL DESIGN OF RIGID PAVEMENTS
Accession Number: 00935436
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: With the further adoption of mechanistic-empirical design methods in the pavement industry, the calculation of critical responses and cumulative damage for a variety of parameters will be imperative. Traditionally, the critical tensile stress developed by loads at the midslab edge has been used as a mechanistic parameter to determine the required thickness in jointed concrete pavements. However, the inclusion of both temperature and shrinkage gradients in concrete pavement analysis can drastically alter the critical stress location and subsequent distress type that predicts pavement performance. Longitudinal and corner cracking have been found in California to be distresses as significant as transverse cracking. Most of the longitudinal and corner cracking can be explained by excessive differential drying shrinkage. Using finite-element analysis, this study compared the critical tensile stress near the transverse joint with the critical tensile stress at the midslab edge (relative reference stress) for California-type jointed plain concrete pavements. The analysis of the data showed that transverse joint loads were more significant in critical stress calculations for a considerable number of input parameters. These loads at the transverse joint can manifest themselves as top-down or bottom-up longitudinal, transverse, or corner fatigue cracks unlike the bottom-up transverse cracks traditionally predicted by midslab edge loads. The likelihood of critical slab stresses near the transverse joint was considerably increased with the use of negative temperature gradients and extended lane widths.
Supplemental Notes: This paper appears in Transportation Research Record No. 1809, Design and Rehabilitation of Pavements 2002.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Hiller, J ERoesler, J RPagination: p. 42-51
Publication Date: 2002
Serial: ISBN: 0309077354
Features: Figures
(9)
; References
(26)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Geographic Terms: Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces
Files: TRIS, TRB, ATRI
Created Date: Dec 17 2003 12:00AM
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