沥青路面的行为函数

路面的行为函数包括结构行为和功能函数两个部分．路面的结构行为，是指路面损坏状况、结构强度随使用时间或累计荷载作用次数而衰变的规律；路面的功能函数，是指路面的行驶质量、结构强度和荷载累计作用次数之间的关系．根据所积累的路面使用性能数据，建立了沥青路面结构强度在路面使用过程中的衰变模型；与路面使用性能模型相结合，首次导出了沥青路面的行为函数．该行为函数反映了路面主要参数的变化规律，揭示了路面性能衰变过程中主要参数之间的同步相互作用过程，在路面性能、强度、结构组合和环境因素之间建立了明确的联系，为基于性能的路面设计、评价和管理提供了通用、简便的基础和手段．

Behavior Modeling for Asphalt Pavements

The behavior model of asphalt pavements consists of two parts,i.e. pavement structural behavior,which means the deterioration laws of both pavement condition and pavement structural strength with the pavement age or accumulated load applications,and pavement function performance,which means the relationships among the pavement riding quality,pavement structural strength and accumulated load applications.Based on the surveyed pavement data,the strength deterioration model for asphalt pavement has been developed.By using the strength deterioration model in conjunction with the pavement performance models developed in advance,the behavior function for asphalt pavement has been induced,which reveals a interaction among the pavement parameters with the deteriorating of pavement,gives a clear relationship among the pavement performance,pavement strength,pavement structural components and environment factors,and provides a comprehensive basis for the pavement design,pavement evaluation and pavement management.