摘要
针对广东北江大桥钢桥面结构及铺装层设计情况。计算钢桥面板局部应力，实测获取桥梁荷载谱资料，并采用模拟桥面应力方法进行铺装与钢板结合件的疲劳试验，得出了铺装抗裂疲劳承载能力。北江桥采用改性沥青铺装是成功的。其抗裂疲劳使用寿命可达五年以上。
The durability of asphalt pavement on orthtropic steel deck plate of Beijiang Bridge is studied. The load spectrum and stress of steel deck plate are obtained via theorical analysis and experiment. The results of the test show that this pavement in Beijiang has a good durability of fatigue. So far, this pavement has been successfully used in fuijiang Bridge more than three years.
