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首页> 外文期刊>Transportation Research Record >Effect of Different Axle Configurations on Fatigue Life of Asphalt Concrete Mixture
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Effect of Different Axle Configurations on Fatigue Life of Asphalt Concrete Mixture

机译：不同车轴构型对沥青混凝土混合料疲劳寿命的影响

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摘要

The fatigue life of an asphalt mixture under different truck axle configurations was determined directly from the indirect tensile cyclic load test by using load pulses that were equivalent to the passage of an entire axle group or truck. The dissipated energy approach was adopted in analyzing the results and determining the number of repetitions to failure for each case; a unique fatigue curve that can be used for multiaxle configurations was developed. Trucks consisting of up to 11 axles and axle groups of up to 8 axles were studied. The results indicated that the normalized damage per load carried decreased with an increasing number of axles within an axle group. Additionally, the fatigue lives predicted by using single load pulses were compared with the measured ones from the different axle groups and trucks.
机译：通过使用等效于整个车轴组或卡车通过的载荷脉冲，通过间接拉伸循环载荷试验直接确定不同卡车轴构型下沥青混合料的疲劳寿命。在分析结果并确定每种情况下重复失败的次数时，采用了耗散能量方法。开发了可用于多轴配置的独特疲劳曲线。研究了由多达11个轴和多达8个轴的轴组组成的卡车。结果表明，随轴组中轴数的增加，每单位载荷的标准化损伤减小。此外，将使用单个负载脉冲预测的疲劳寿命与不同轴组和卡车测得的疲劳寿命进行了比较。

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