Study On Key Techniques Of 50m Prestressed Concrete Box-section Bridge Casted By Movable Scaffolding System

With the development of social economy,the demand of transport capacity is increasing.As an important part of the main road,the bridge plays a more and more important role.In the society,the construction of bridge superstructure is divided into two forms.One form is the construction method of the support method,and the other is the construction method of the non support method.For mobile formwork construction method,the construction method is a more efficient.At the same time,it is a relatively new construction methods.This construction method belongs to the scope of bracket construction.Compared with other construction methods,the space required for this construction is relatively small.At the same time,it does not need to deal with the basis for the corresponding.Based on the Jiujiang Yangtze River Highway Bridge project.First of all,the article simply introduces the general situation of engineering.At the same time,the research status at home and abroad were reviewed and analyzed.The existing problems are summarized,and put forward the purpose of studying the issue,significance and necessity.Secondly,the research on the key technology of mobile formwork assembly,including the selection and design of mobile mould processing,mobile formwork installation technology,movable frame girder segment of steel pipe pile support air assembling technology,asymmetric assembly technology and carrier technology research and other aspects of the demolition.Then the movable formwork concrete continuous beam construction technology are analyzed.Finally analyzes the related research on removal technology of mss.Through the analysis and research of key construction technology of prestressed concrete box girder slide shuttering method,this paper provides certain help and reference for similar engineering in the future.