随着我国铁路技术水平不断提高,铁路工程施工质量已有很大提高,但在铁路简支箱梁的预制当中,经常会出现混凝土裂缝问题,为减少混凝土裂缝,并保证其外观质量,应加强后张法简支箱梁的预制工艺水平,本文就铁路简支箱梁中的预制后张法关键工艺进行了分析探讨。 With the continuous improvement of railway technology in China, the quality of railway construction has been greatly improved. However, in the prefabrication of railway simple box girders, concrete cracks often occur. To reduce the concrete cracks and ensure the appearance quality, the quality of the railway should be strengthened Post-tensioned simply supported box girder prefabrication technology level, this paper analyzes the key technology of prefabricated post-tensioning method in railway simple box girder.