Performance-related approach for rigid pavement design

Abstract

The current Austrian pavement design method defines standard pavements for different load classes and construction types. To determine standard rigid pavements a mechanistic model is being used. Traffic load is considered through a standard axle and local climate conditions are only included through different subgrade bearing capacities. Load transfer across transverse joints is taken into account but no relation between the used configurations and geometry of dowels and the effectiveness of load transfer at the joint has been established yet. Within a revision of the Austrian pavement design standards a new multilevel design method will be implemented with the aim to better consider the material characteristics of the used concrete. Furthermore, this model is capable of taking into consideration not only climatic conditions and realistic traffic loading but also boundary conditions like load transfer between adjacent slabs.