To find the reasons that caused(1860MPa) PC steel wire strand rupture,fractures of detection and rupture in construction were studied by using the method of statistical analysis and morphological analysis.

• 统计分析了1860MPa级PC钢绞线的生产检测断口和施工失效断口,指出导致其断裂的原因,讨论了PC钢绞线的使用安全性。