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Damage Analysis of Jointed Plain Concrete Pavements in Indiana. Part 1. Finite Element Modeling and Damage Analysis.
| 题名： | Damage Analysis of Jointed Plain Concrete Pavements in Indiana. Part 1. Finite Element Modeling and Damage Analysis. |
| 作者： | sotelino, e. d. asgari, a. saksa, a. cedeno, g. |
| 关键词： | concrete pavements,design procedures,finite element modeling,damage analysis,indiana,finite element (fe) model/parametric studies, damage accumulation, slab thichness, slab length/ |
| 摘要： | Current design procedures for concrete pavements do not account for several factors that can influence their service life. In this work, these factors are investigated and the findings are integrated into a procedure for better predicting longterm performance of concrete pavements. To achieve this, sophisticated finite element techniques are employed and parametric studies are performed. The findings are then integrated into a nonlinear procedure for damage accumulation. In the development of the comprehensive 3D Finite Element (FE) model several issues are studied including the geometry of the model, mesh refinement, element selection, interaction between pavement components, and loading simulation. The developed model is then used in a number of parametric studies to investigate the effect of soil conditions, subbase and slab thickness, and slab length and stiffness on the developed stresses. Among other findings, it is established that for a given slab length, increasing the slab thickness beyond a certain limit is not justifiable. The developed FE model is also used to investigate the behavior of skewed concrete pavement slabs under several loading conditions. In particular, the crack patterns obtained from the FE analyses are compared to those observed in an actual skewed concrete pavement. It is found that the developed FE model is able to successfully predict the cause and orientation of the failure of this pavement section. / NOTE: Final rept. / Supplementary Notes: Sponsored by Indiana Dept. of Transportation, Indianapolis. and Federal Highway Administration, Indianapolis, IN. Indiana Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 报告类型： | 科技报告 |
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