大跨径钢桥面环氧沥青铺装典型病害研究

Research on Diseases of Long-span Steel Bridge Deck Pavement with Epoxy Asphalt

随着铺装使用年限的增长以及高温重载等恶劣的使用条件,国内大跨径钢桥环氧沥青铺装出现了较为严重的早期病害。文章采用多功能检测车以及人工调查等方式对环氧沥青铺装的病害类型、分布特征进行调查研究,并从荷载、温度、养护技术和钢箱梁顶板挠度等方面分析了大跨径环氧沥青钢桥面铺装病害的成因。

With the increasing of traffic volume and heavy-duty traffic, there are serious early diseases in deck pavement with epoxy asphalt. In this paper, the diseases types and distribution characteristics of epoxy asphalt deck pavement are analyzed comprehensively by multi-function detection vehicle and artificial investigation. The causes of diseases are also analyzed from aspects of loading, temperature, maintenance technology and deflection of steel box girder roof.