通过对桐庐富春江一桥维修加固工程中的竖向预应力补张施工过程的介绍,较详细的阐述了桥梁竖向预应力精轧螺纹钢管道位置的检测、各种条件下的补张方法、高强灌浆料的配制和补张灌注工艺,对桥梁加固维修中常见的竖向预应力施工注浆不饱满、张拉应力不够等情况有一定的参考意义。 Through the introduction of the process of vertical pre-stressing in the repair and reinforcement project of Tongchun Fuchunjiang Bridge, the paper examines the detection of vertical pre-stressed rebar pipelines in detail, the method of filling under various conditions , The preparation of high-strength grouting material and the filling and filling process have certain reference meaning to the situations of incomplete grouting and insufficient tensile stress of the common vertical prestressed construction in bridge reinforcement and maintenance.