无粘接钢绞线斜拉索腐蚀性能试验研究

he prestressed concrete-type, steel anchor box-type and steel anchor beam-type are the traditional ways used for cable tower anchorage of cable-stayed bridge. With the development of the cable-stayed bridge technology, previously used for low tower cable-stayed bridge, the saddle became popular in the general cable-stayed bridge. In order to balance the cable force on both sides, enough static friction needs to be ensured between the unbonded steel strand cable and saddle, and one way is to strip the PE pipes of the strand through the saddle and replace them with stainless steel band. To test the corrosion resistance of the strand in practical application,the neutral salt spray corrosion test was conducted, and the corrosion grade evaluation and static strength test showed that the protective measures meet design requrement for bridge engineering.