桥面铺装有限元模拟与应用研究进展

RESEARCH PROGRESS OF FINITE ELEMENT SIMULATION AND APPLICATION OF DECK PAVEMENT

  • 摘要: 该文系统总结了模型假定、边界条件以及荷载设置等桥面铺装有限元模型关键要素,重点对基于有限单元法的桥面铺装材料与结构组合设计方法进行了综述,梳理了桥面铺装有限元分析及应用的热点与前景。桥面铺装有限元模拟与应用研究进展指出:当前阶段,仍需进一步丰富有限元设计的内涵;在位移边界条件分析、随机动态荷载研究验证、温度场模拟成果深化以及车辙深度研究完善等方面,提高模拟结果的可靠性;需推进桥梁结构设计与桥面铺装设计、室内外试验与有限元分析以及材料技术创新与施工质量控制的一体化发展进程,加强模型特殊假定、设计流程以及设计目标的规范化建设,以实现桥面铺装有限元分析的发展与突破。

     

    Abstract: Reviewed were crux elements of finite element models for deck pavement, encompassing model assumptions, boundary conditions, and load configurations. And summarized were the design methodology for deck pavement materials and structures based on the finite element method. The review elucidates the current hotspots and prospects in the finite element analysis and application of deck pavements. Research progress of finite element simulation and application of deck pavement indicates that there is a requirment for further enriching the content of finite element design. To enhance the reliability of simulation results, efforts should be directed towards the analyses of displacement boundary conditions, of the validation through studies on stochastic dynamic loads, of deepening simulations of temperature fields, and of the refinement in the study of rut depth. It is essential for the progress in the integrated development process of bridge structures and deck pavement design, in the practical experiments and finite element analysis, as well as in the material technology innovation and construction quality control. It is imperative to strengthen the standardization of model assumption, of design process, and of design objective, so as to facilitate the breakthroughs in finite element analysis of deck pavements.

     

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