Constructional Monitoring And Structural Simulation Analysis Of Large Span Continuous Rigid Frame Bridge

In recent twenty years, with the fast development of prestressed concrete continues rigid frame bridge, which has a property of bond of beam and abutment, so not only maintain the advantage of comfort of continue girder, but also decrease maintenance cost because that there is no bearing of "T" beam. Continue rigid frame bridge is more and more widely used because of its high strength, lightful line type, convenient and fast construction, long-span ability.The prestressed concrete continuous rigid frame bridge often adopts the economical and reasonable segmental construction technique with cantilever installation. During the process of the balanced cantilever construction, the bridge structure is influenced by various factors, such as shrinkage, creep and temperature change of concrete, construction error, survey error, and so on. Such factors result in the complex change of the internal forces and displacements in the bridge. It is necessary to execute construction control effectively for bridge's construction, ensuring of smooth closing join at mid-span, meeting the need of design and keeping the ideal alignment after closing join.In this thesis, we base on the consruction control and monitor project of Liuzhou Luosiling Liu river extra-long bridge. In order to ensure the consistency of practical alignment of structure and ideal alignment, deflection and internal force within the allowable limit, we adopt reasonable computation to analyze the construction process in view of the practical construction of long-span continuous rigid frame bridge. The calculation of construction procedural is...