Cast-In-Situ Box Girder Lateral Formwork Slip Construction Technology Adjacent to Business Line
The Fengtai Super-Bridge of Beijing Fengtai Station Reconstruction Project is adjacent to the Beijing-Guangzhou downlink line,and is located on the R=500m curve.The minimum distance between the edge of the flange plate template and the line return line is 1.03m,and the minimum distance from the catenary mast is 0.5m.For the construction above the railway,it is necessary to use the railway skylight time of the Beijing-Guangzhou main line to perform construction,and the crane demolishing cannot be adopted,so the lateral formwork demolishing has become a difficult point in the construction of this project.This project changes the traditional construction technology,and innovatively uses the cast-in-situ box girder lateral formwork longitudinal slip construction technology,which avoids the railway skylight construction,reduces the safety risk,and provides technical reference and basis for the subsequent construction of similar projects.
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