摘要
详细介绍了石门大桥拉索病害的检测方法和步骤。通过下锚头渗水检测,指出渗水是由于桥面雨水进入锚箱钢套管所致。分析了护套破损成因及其规律,发现拉索护套破损数量与拉索长度线性相关。提出了一种划分钢丝锈蚀等级的方法。通过对换下旧索进行剖索检测,分析了拉索截面锈蚀分布规律以及沿长锈蚀分布规律。
It is described in detail that the detection methods and steps of the deteriorated cables of Shimen Bridge. By detecting the bottom sockets, the cause of water seepage was found. The leaking is due to the water on deck which filtered into the steel sleeve around the cables. The cause of sheath deterioration, together with the degrading rule is analyzed, by which it has been found out that the probability of deterioration is linear correlated with the length of the cables. A method of classifying the corroded wires is brought forward. By means of the inspection of te replaced cables, the laws of the corrosion distributions in section and length direction are also analyzed.
出处
《钢结构》
2007年第6期81-84,共4页
Steel Construction
关键词
斜拉索
锈蚀
渗水
分布
stayed cable
corrosion
water seepage
distribution
