Pave-Ut—Hungarian environmental load application

Abstract

Structural analysis of road pavement structures is necessary to reduce material waste in cross-sectional design and to accompany optimal feeling of use within the service life. As a result of many studies, it is known that the effect of environmental load on roads is significant. Since environmental loads have regional characteristics, this study focused on the application of environ-mental loads in structural analysis in the light of regional characteristics in Hungary. In this study, a structural analysis program called Pave-Ut, which is based on the finite element analysis method, was developed. Among the major environmental factors, stiffnesses of the temperature influence on asphalt layer and water content change influence on subgrade are featured. Pave-Ut was verified through BISAR and ALVA, which are codes for research. An error of about 10% occurred, which will be reinforced in future studies. Finally, a comparative analysis was carried out in a case in which the asphalt temperature profile for each layer was reflected and a case in which the stiffness of the subgrade was reflected in the monthly average rainfall, and these were com-pared to a case in which these characteristics were not taken into account.

Keywords

• asphalt material property programming
• dynamic modulus at specific depth
• dynamic modulus
• hungarian asphalt temperature prediction
• pavement structural analysis