In order to extend the service life of the steel bridge deck pavement, a long-life steel bridge deck pavement (LLSBDP) was put forward referring to the concept of long-life asphalt pavement. First, the requirements of the LLSBDP were given, based on which, an LLSBDP structure “EAC + SMA” was proposed. Second, a numerical analysis was performed to evaluate the stress status of the “EAC + SMA” structure. Third, an experimental study was conducted to assess the performance of the pavement material and the pavement structure. Meanwhile, for comparison, the performances of traditional steel bridge deck pavement structure “EAC + EAC” were also studied in the numerical and experimental program. The results showed that, with periodical rehabilitation or reconstruction of the SMA surface layer, the EAC base layer can last for a long life without structural distresses. The proposed structure can meet the requirements of LLSBDP and can be used to extend the service life of the steel bridge deck pavement.

中文翻译：

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钢桥面板长寿命沥青路面的可行性评估

为了延长钢桥面板铺面的使用寿命，提出了一种长寿命的钢桥面板铺面（LLSBDP）。首先，给出了LLSBDP的要求，并在此基础上提出了LLSBDP结构“ EAC + SMA”。其次，进行了数值分析以评估“ EAC + SMA”结构的应力状态。第三，进行了一项实验研究，以评估路面材料的性能和路面结构。同时，为进行比较，还通过数值和实验程序研究了传统钢桥面铺装结构“ EAC + EAC”的性能。结果表明，通过定期修复或重建SMA表面层，EAC基础层可以长期使用寿命，而不会造成结构损坏。所提出的结构可以满足LLSBDP的要求，并且可以用于延长钢桥面铺面的使用寿命。