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1 前言近年来,在部分预应力混凝土低高度箱梁的应用技术方面,我国已成功地开发了20m以下部分预应力混凝土低高度箱梁。但对30m部分预应力混凝土低高度箱梁的研究还未涉足。本文通过应用实践,总结了30m部分预应力混凝土低高度箱梁的施工工艺技术,为该结构在我国桥梁工程中的应用提供参考。
1 Introduction In recent years, in the application of partially prestressed concrete low-height box girder, China has successfully developed partial prestressed concrete low-height box girders below 20m. However, the research on 30m partially prestressed concrete low height box girder has not been involved yet. This paper summarizes the construction technology of 30m partially prestressed concrete low-height box girder through application practice, and provides reference for the application of the structure in the bridge engineering in our country.