Abstract
Comparative design of structures allows at an early stage of project development to assess their behavior and predict service life. Approximate numerical methods, for example, the finite element method, are widely introduced to simulate the operation of pavements on road structures. The variety of modern asphalt concrete poses the problem of finding the most effective design solutions based on the results of comparing the performance indicators of road pavements. The article presents the results of modeling by the finite element method of the work of road pavements, consisting of a two-layer asphalt-concrete package, on a reinforced concrete slab of bridge. Various options for combinations of asphalt concrete are considered. The well-known American method of the Asphalt Institute was used as a methodological basis. For the criterion of the limiting state, the indicator of accumulated fatigue cracks in the amount of 10% of the wheelpath area is taken. Preliminary recommendations are given on the field of application of the considered road pavements on reinforced concrete bridges in the conditions of the Syrian Arab Republic.
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