<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Road structures are loaded by heavy vehicles and also they have an influence of temperature changes, which cause a difficult stress and strain distribution over layers of the pavement and the subgrade. Knowing this, distribution of stress and strain can help to better understand the behaviour of the pavement during the service time. For this purpose, the mechanical characteristics like elastic modulus, Poisson ratio, or damping ratio have to be known. The special device is used for determination of these mechanical characteristics, which loads the surface of the pavement by a force impulse. The deflections are measured in the surroundings of point of load impulse. The signal can be evaluated by use of 2D or 3D calculation model of pavement construction. In this case was used the axially-symmetric 2D model. This reduced the time consumption of individual tasks solution. The article considers also the influence of boundary conditions on deflections of models with varying width. The following text describes findings acquired from numerical simulation of pavement response to dynamic load.</p></abstract>

Road structures are loaded by heavy vehicles and also they have an influence of temperature changes, which cause a difficult stress and strain distribution over layers of the pavement and the subgrade. Knowing this, distribution of stress and strain can help to better understand the behaviour of the pavement during the service time. For this purpose, the mechanical characteristics like elastic modulus, Poisson ratio, or damping ratio have to be known. The special device is used for determination of these mechanical characteristics, which loads the surface of the pavement by a force impulse. The deflections are measured in the surroundings of point of load impulse. The signal can be evaluated by use of 2D or 3D calculation model of pavement construction. In this case was used the axially-symmetric 2D model. This reduced the time consumption of individual tasks solution. The article considers also the influence of boundary conditions on deflections of models with varying width. The following text describes findings acquired from numerical simulation of pavement response to dynamic load.

Numerical Simulation of Pavement Response to Dynamic Load

University of Žilina, Faculty of Civil Engineering Univerzitná 8215/1, 01026 Žilina, Slovakia Department of Highway Engineering Ph: +42141/5135930

University of Žilina, Faculty of Civil Engineering Univerzitná 8215/1, 01026 Žilina, Slovakia Department of Structural Mechanics Ph: +42141/5135616

Transport and Telecommunication Journal

{"article-title":"Numerical Simulation of Pavement Response to Dynamic Load"}

Road structures are loaded by heavy vehicles and also they have an influence of temperature changes, which cause a difficult stress and strain distribution...

Numerical Simulation of Pavement Response to Dynamic Load

Pubblicato online: 21 giu 2013

Pagine: 230 - 236

DOI: https://doi.org/10.2478/ttj-2013-0020

This content is open access.