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Title |
Steel Design of Continuously Reinforced Concrete Pavement based on the Width of Transverse Crack
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Keywords |
연속철근콘크리트포장 ; 균열폭 ; 설계온도 ; 장기 공용성 ; 철근비 ; 제로스트레스온도 ; Continuously reinforced concrete pavement ; Crack width ; Design temperature ; Longterm performance ; Steel ratio ; Zero-stress temperature |
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Abstract |
The steel design based on the width of transverse crack which is the major factor to affect a long-term performance of continuously reinforced concrete pavement was developed. For this study, twenty-one cities of Texas were selected and the temperature data was collected at those locations during the past ten years. From the data, zero-stress temperatures were calculated by the PavePro program and the widths of transverse crack were analyzed by the CRCP program. The variables used to this numerical analysis were slab thickness, coefficient of thermal expansion of concrete, steel ratio, and design temperature. The total of 448 factorial runs were made and the regression analysis was performed using the results. Steel ratios from the regression equations were backcalculated and a steel design table was proposed.
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