关键词:  , 简支箱梁, 后张法, 混凝土, 工艺应用

Abstract: As the core link of the technology application of simply supported box girder of railway bridge,the standardized control of concrete construction technology is not only helpful to improve the construction quality of concrete engineering,but also has great influence on the integrated stability and safety of the simply supported box girder railway bridge.On the basis of expounding the construction connotation of post-tensioned method for the simply supported box girder railway bridge,the application flow and technical requirements of current construction technology are expounded,and the preparation,construction organization,material application of concrete construction,quality control and safety assurance are systematically analyzed in order to improve the quality of concrete construction,and then promote the further development of simple box girder railway bridge project.

Key words: simply supported box girder, post-tensioned method, concrete, technological application