Prefabricated Construction and Quality Control Points of Post-tensioned Concrete Box Girder

By combining the characteristics of post-tensioned concrete supported box girder applied in the high-speed railway project,construction points and quality control measures are briefly introduced for rebar colligation,suspension setting,formwork and concreting process etc.It is emphasized the improvement and optimization of construction technologies as well as a variety of measures to enhance the quality and efficiency of box girder construction.