A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Evaluation of Backcalculation Algorihms Through Dynamic Modeling of FWD Test
The availability of information on pavement moduli essential for mechanisms design and rehabilitation decisions of new and distressed pavements. the Falling Weight Deflectometer (FWD) test is in use by many states for monitoring variability of pavement materials and seasonal changes in maaterial properties, and for providing data for overlay thickness design. Experience has shown that different backcalculation programs produce different results when applied to the same pavement. In this project, dynamic finite element models of flexible, rigid, and and composite pavements were developed to produce deflection basins that closely match those measured during FWD tests. The pavement moduli profiles predicted by several major backcalucation programs for the same for the same pavement structure will be campared with the moduli profile used in the finite element model. The backcalucation algorithm that produces a moduli profile closest to the one used in the model will be identified. The effect of thermal warping of concrete slabs and layers interface bond on the backcalculated moduli will be studied.
Evaluation of Backcalculation Algorihms Through Dynamic Modeling of FWD Test
The availability of information on pavement moduli essential for mechanisms design and rehabilitation decisions of new and distressed pavements. the Falling Weight Deflectometer (FWD) test is in use by many states for monitoring variability of pavement materials and seasonal changes in maaterial properties, and for providing data for overlay thickness design. Experience has shown that different backcalculation programs produce different results when applied to the same pavement. In this project, dynamic finite element models of flexible, rigid, and and composite pavements were developed to produce deflection basins that closely match those measured during FWD tests. The pavement moduli profiles predicted by several major backcalucation programs for the same for the same pavement structure will be campared with the moduli profile used in the finite element model. The backcalucation algorithm that produces a moduli profile closest to the one used in the model will be identified. The effect of thermal warping of concrete slabs and layers interface bond on the backcalculated moduli will be studied.
Evaluation of Backcalculation Algorihms Through Dynamic Modeling of FWD Test
D. Martimelli (author) / G. William (author) / O. Selezneva (author)
2000
82 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Pavements , Deflectometers , Dynamic loads , Design , Mechanical properties , Composite materials , Seasonal changes , Deflection , Rehabilitation , Monitoring , Finite element methods , Concretes , Slabs , Testing , Evaluation , Algorithms , Tables(Data) , Falling weight deflectometer
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