随着我国经济水平不断发展,交通行业同样需要跟上发展的步伐,特别是近年来,随着国家及地方对水利越来越重视,交通部门从勘察设计角度也在逐步提高标准。文章结合唐曹公路改建工程新陡河大桥工程实例,阐述了大跨径混凝土箱梁后张法预制施工的几点体会。 With the continuous development of China’s economy, the transportation industry also needs to keep up with the pace of development. Especially in recent years, as the state and local governments pay more and more attention to water conservancy, the traffic department is gradually raising the standard from the angle of survey and design. Combined with the example of the new Douhe River Bridge reconstruction project of Tang Cao Highway, the paper expounds the experience of post-tensioning precast construction of long-span concrete box girder.