Taking the partly prestressed 25 m box-beam in bidded section FG-Q2-1 of Fenguan Superhighway as an example and connecting with the construction practice,this paper introduces the key points of the post-tensioned construction technique for 25 m box-beam.

• 以汾灌高速公路FG-Q2-1标段部分预应力25m箱梁为例,结合施工经验,介绍了25m箱梁后张法的施工技术要点。