Discussion on Construction Technology of Variable Cross-section Continuous Box Girder
Currently,there are two main methods for the construction of variable cross-section continuous box girders.One is the cantilever pouring method,which uses hanging baskets to pour sections and apply pre-stress;Another method is the cantilever assembly method,which involves prefabricating beam segments in the prefabrication yard and then assembling them one by one on site,applying prestress.The two construction methods have their own advantages and disadvantages.The former occupies a smaller site,but the construction quality and speed are poor.The latter has a faster construction speed and easier quality assurance,but requires centralized prefabrication in the prefabrication yard,which occupies a larger site.The specific method to be adopted needs to be tailored to local conditions and selected according to the actual situation.
continuous box girdercantilever assemblycantilever pouringlong line methodshort line method
万方数据
维普
