基于传热学基本原理，采用有限元软件 ABAQUS，建立了温度荷载作用下 AC ＋CRC 复合式路面结构三维有限元模型，探讨了横向裂缝间距、AC 层厚度及模量、CRC 板厚度及模量、配筋率等路面结构参数对复合式路面结构温度翘曲应力的影响规律。分析结构表明，温度荷载下横向应力接近主应力，应予以重点考虑。路面板宽度、厚度及温度梯度与板内最大主应力关系密切，配筋率、粘结刚度系数对纵向拉应力影响也较大。研究结果可为 AC ＋CRC 复合式路面结构设计提供一定的理论依据。%Based on the heat conduction theory,the stress analysis model was established to simu-late the continuously reinforced concrete with asphalt concrete overlay composite pavement under thermal load using ABAQUS.The thermal warping stress were calculated under the effects of structure thickness and modulus ,steel ratio and so on.Results of the analysis indicate that transverse thermal warping stress of CRC slab is approximately equal to principal stress.Thickness and width of CRC slab ,the tempera-ture gradient have a close relationship with thermal stress.Steel ratio and bond rigidity parameter have a certain effect on the distribution.The results could provide a theoretical basis for design of AC +CRC composite pavement.
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