在调查目前国内生产技术水平和深入研究的基础上,对斜拉索用平行钢丝、主缆用平行钢丝的工作 应力进行了对比,针对低松弛平行钢丝的特点逐一分析,论证了斜拉索均采用低松弛平行钢丝的必要性并不大,提 出了斜拉索可考虑采用普通松弛平行钢丝的观点,供我国斜拉桥的设计者探讨。 Based on the investigation of domestic production technology and in-depth study, the working stress of parallel steel wire for cable stayed cable and parallel steel cable for main cable are compared. According to the characteristics of low-relaxation parallel steel wire one by one, The necessity of using low relaxation parallel steel wire is not large, and the view that ordinary steel wire parallel slack can be considered in the stay cable is proposed for the designer of cable stayed bridge in our country.