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详细介绍了部分预应力在芜湖长江大桥铁路40m跨度的混凝土简支箱梁的应用，并推导了有实用价值的公式。同时对部分预应力简支梁与全预应力简支梁作了经济比较和分析。这是我国首次将部分预应力技术应用于箱形铁路大桥，这样使部分预应力的应用范围更加广泛，同时又具有重要的经济意义。
The application of partial prestressing to concrete simply supported box girder with a span of 40m on the Wuhu Yangtze River Bridge is introduced in detail and a practical formula is deduced. At the same time, some prestressed simply supported beams and fully prestressed simply supported beams were compared and analyzed economically. This is the first time that China applied partial prestressing technology to the box-shaped railway bridge, thus making the application of partial prestress more extensive and at the same time significant economic significance.