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AASHTO1993设计方法•经验法•PSI(PresentServiceabilityIndex):现时服务性指数•结构数(SN:StructureNumber)•当量轴载换算公式•设计公式水泥混凝土路面设计水泥混凝土路面结构设计以行车荷载和温度梯度综合作用产生的疲劳断裂作为设计的极限状态,其表达式为水泥混凝土路面结构设计以100KN的单轴-双轮组荷载作为标准轴载。不同轴-轮型和轴载的作用次数,按式(3.04-1)换算为标准轴载的作用次数接缝•横向接缝(缩缝、涨缝、施工缝)•纵向接缝•温度翘曲(Pg470)路面养护、维修与管理ShoulderTrafficModerateLowCenterlineHighFatigueSeverityWindshieldSurveyWalkingSurveyKneesandElbowsSurveyDataFormsHand-HeldComputerFallingWeightDeflectometer(落锤式弯沉仪)FallingWeightDeflectometerDynaflect-Close-upofSensorsRoadRaterFWDSensorConfigurationLoadingWheelContactAreaSensor12in.12in.12in.12in.12in.12in.12in.ExampleofaDeflectionBasinAREAPLoadplated0d36d60d12BenkelmanBeamDCPEquipment(动力贯入仪)DCPequipmentDCPtestingCoringEquipment(钻芯)SampledmaterialLaboratorytesting
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