STUDY ON CONCRETE POURING OF PRECAST BOX GIRDER WITH LONG SPAN(60 M)RAILWAY
Through the study of the concrete pouring process of the 60 m long-span railway prefabricated box girder of the Ningxiang Railway Precast Beam Yard,the preparation before the concrete pouring of the box girder was analyzed,the concrete pouring scheme was discussed,and the selected concrete pouring scheme was summarized,and finally the optimal pouring scheme was selected,that is,the pouring construction technology was promoted from both ends of the beam to the middle of the beam.The scheme can not only complete the requirements of casting,improve the concrete quality control of the prefabrication of the long-span box girder,improve the concrete pouring construction technology,but also improve the production efficiency and avoid the common quality problems,and has achieved good results in the prefabricated box girder,which can provide reference for similar projects.
large spanbox girder prefabricationconcrete pouring
NETL
NSTL
万方数据
