Analysis On The Stage Of Continuous Rigid Frame Bridge Cantilever Casting Construction

According to Tao Yuan Gou 2#bridge right bridge(45 + 3x80 + 45 m)multi span prestressed concrete variable cross-section continuous rigid frame bridge,for continuous rigid frame bridge construction monitoring and control theory,construction monitoring method,the vertical mold standard high school pre camber setting and structure of the upper beam body should force monitoring and hanging basket cantilever construction stage,closure stage,traffic operation stage,stability checking and so on content analysis and calculation.Based on the above analysis and research work,the following conclusions are drawn:(1)In the construction stage of the prestressed concrete continuous rigid frame bridge,the theory calculation and analysis is the premise of the bridge construction monitoring work.At the same time,reasonable and efficient continuous rigid frame bridge monitoring program,and bridge superstructure construction successfully closed and all above control data prerequisite to achieve the design specifications and requirements.(2)In the construction stage of Prestressed Concrete Continuous Rigid Frame Bridge elevation setting,pre camber calculation,etc..It is considered that the analysis results of the finite element software civil Midas to a certain extent,in order to meet the needs of Engineering construction.At the same time,the empirical distribution method of pre camber and the formula distribution are analyzed.The cosine curve distribution method is more suitable for the distribution of the camber of the continuous rigid frame bridge.(3)Combined with the finite element software MIDAS civil to the multi span continuous rigid frame bridge ''maximum cantilever construction stage" "closure of the whole bridge stage”and "opening operation stage" wind checking and full bridge checking computations of the stability analysis.It is not difficult to find:prestressed concrete continuous rigid frame bridge,more than,high pier,large span structure,belong to the category of long thin.In the full bridge hanging basket cantilever construction stage,full bridge closure stage and later opened to traffic operation stage of bridge of lateral wind resistant calculation and full bridge stability checking is very necessary.