Research on Incremental Launching Construction and Quality Control Measures for Steel Box Girder of Extra-large Bridges
The extra-large bridge is a kind of special bridge with a single hole span usually exceeding 150 m.In the construction of the extra-large bridge engineering project,the superstructure is mainly composed of steel-concrete composite girders,which makes the incremental launching construction of steel box girder become the key link of such bridges.Therefore,it is necessary to master the key points of steel box girder incremental launching construction and take effective technical measures to control the incremental launching quality.Based on this,this paper relies on engineering examples to discuss the incremental launching construction and quality control measures for steel box girder of extra-large bridges.It mainly introduces the key points of the incremental launching construction of the steel box girder and the quality control measures of the incremental launching of the steel box girder for reference.
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