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.

• 摘要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。