With two examples of the prestressed celom tension in the continuous girder design , which is utilized in the projects of mingzhu elevated railway and xinmin elevated railway , the author analyses the characters of the design and the application of this technology 摘要就轨道交通明珠线、莘闵线等工程的连续梁设计中预应力束体内张拉的实例，分析其设计特点和应用。
