Long-span Continuous Girder Bridge Construction Control Technology

On the basis of the construction control of Feiyunjiang Bridge,this paper studies the construction monitoring technology and the construction controlling technology of the continuous bridge.Through the analysis of the construction parameters, the paper discusses the influence of structural inner force and displacement caused by the main construction parameters. The article raises monitoring content and method of the prestressed concrete continuous bridge, and raises general content and method in construction parameter adjustment. According to the performances of the prestressed concrete continuous bridge, the paper, through study and contrasting analysis of the existing forecasting monitoring methods, raises a technical system of using grey theory to estimate the construction status parameter and carries out feedback control, which is, later, applied to the real bridge and gets verification.