Construction Technology of Multi-box Wide and Long Continuous Girders
With the continuous advancement of prestressed concrete technology and the widespread application of high-strength materials and high-performance concrete in bridge engineering,continuous box girders are gradually moving towards the direction of multi box compartments with large spans and long connections.However,there is little experience in the construction of multi box compartments with more than 3 boxes,20m width,and 169m length multi span continuous girders.Combined with the characteristics of a municipal engi-neering bridge,this paper describes the research and application process of using a large number of advanced design,construction techniques,and monitoring methods to solve the difficulties in quality control of large vol-ume thin-walled concrete construction,girder maintenance control,safety quality control of prestressed tensio-ning and grouting,and difficulties in prestressed girder penetration construction.
万方数据
维普
