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首页> 美国政府科技报告 >Reevaluation of the Methods for Calculation of Load Equivalency and Damage Ratios
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Reevaluation of the Methods for Calculation of Load Equivalency and Damage Ratios

机译：重新评估负荷等效和损坏率的计算方法

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The effect of heavy trucks on the performance of pavements located in northernOhio was evaluated to develop and implement more realistic damage factors caused by heavily loaded trucks. Detailed traffic measurements were made twice a year for two years using weigh-in-motion equipment. Distress measurements consisting of cracking, faulting, Mays roughness, and PSI for rigid pavements and cracking, rutting, Mays roughness, and PSI for flexible and composite pavements, were made at the same time. Cores were also extracted from each project and subjected to laboratory testing. Dynaflect deflections were taken four times during the monitoring period. The analysis showed that for rigid pavements heavy axle loads contribute more toward cracking and faulting development than to PSI loss whereas rutting is most influenced by heavy axle loads (followed by PSI and cracking, in that order) for flexible and composite pavements.

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