Key Technique Research Of Continuous Rigid Frame Bridge

Along with the country invest a lot of investment into the high-speed transportation enterprise and constantly perfect road network planning, which brought in a climax of the traffic construction. Crisscross of highway in each corners of the motherland distribution. Bridge structure as indispensable part of the road traffic got an unprecedented development. Prestressed concrete continuous rigid frame became the preferred solution of the highway across the bridge structure forms because with the advantage of no expansion joint, driving comfort, no support, convenient construction, long span and so on, to be the excellent type of bridge in highway.In this discourse, with research the way of cantilever cast-in-place of continuous rigid frame bridge after summarized development of domestic and foreignIn order to ensure the requirements of the internal force, analyzing the movable suspend scaffolding, bracket and the technology of fold base on requirement of construct. Checking the ford condition of main constructional element in unfavourable load and improving the movable suspended scaffold. Each factor which influence the folded of the continuous rigid frame, for example temperature and additional force. It is significant that the bridge successful accomplish.