高强度低松弛钢绞线与YM锚固体系在椒江大桥工程中的应用

The Application of Strand Wire with High Strength and Ym Anchorage System in the Project of Jiaojiang Bridge

本文结合椒江大桥工程实践,分析了国产高强度低松弛钢绞线和预应力锚固体系,在施工中的张拉工艺、锚固原理。同时对影响锚固性能的常见故障及原因,提出了对策措施。

This article comtined the practice of the projtct of Jiaojiang bridge and analyzed strand wire with high strength and low laxation, the anchorage system, the tentioned technice in the construction, and the principle of anchorage. At the same time, it presented the solution to fregrent failtttres which effect performace of anchor.