Abstract
The current cement concrete pavement design specification considerate the limit state of pavement via using the most adverse combination of maximum load stress and temperature load stress. This method enlarged the effect of temperature stress which lead to the overly conservative results. According to it, the reasonable combination of the ultimate axle load and temperature stress was deeply researched. The proper value of temperature gradient, reliably coefficient, stress reduction coefficient, comprehensive coefficient and the effect of load position in structure calculations were studied respectively. The improved calculation method of cement ultimate axle load of concrete pavement was proposed and verified, rely on the practical construction.
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