预应力混凝土连续梁桥上部结构施工技术

Construction technology of the superstructure of prstressed concrete continuous beam bridge

结合佛山三水二桥跨三茂铁路连续梁桥上部结构(49+82+82+49)m预应力混凝土刚构—连续结合梁的箱梁施工,介绍了0号块以及直线段现浇施工方案,其他梁段挂篮悬臂施工技术,阐述了挂篮的试压、梁部的线形控制以及合龙段的控制技术等。

Combined with practical work of superstructure （49 ＋ 82 ＋ 82 ＋ 49） m work of continuous prestressed concrete rigid framed box girder of the second Sanshui continuous railway bridge practical construction method is introduced. Construction scheme of block No. 0 and straight part are introduced as well as construction technology of hanging basket. In the end pressure test of hanging basket, linear control of beam and construction control for closure are elaborated.