コンクリート舗装版の疲労ひびわれ評価システムに関する研究
1990 年 1990 巻 420 号 p. 163-172
詳細
1990 年 1990 巻 420 号 p. 163-172
Structural deterioration of concrete pavements is mainly caused by fatigue cracks. Hence, the purpose of thickness design of concrete pavement slab is to prevent the fatigue cracks during its design life. Since, the development of the fatigue crack largely depends on traffic load repetitions, wheel passage placement, dimensions of concrete slab and load transfer device at transverse joint, these factors should be taken into consideration in the thickness design of concrete pavement slab. In this study, a evaluation system of the fatigue cracks of concrete slab was developed based on the FEM analysis incorporating a distribution model of wheel passage derived from the measurements at several roads. The relationship between the placement of wheel passage and the structure of concrete pavement was studied by this system.
