Research On Construction And Control Techniques Of The Ronggui Bridge

Continuous rigid frame bridge is a kind of bridge of which girder is fixedly connected with piers. Prestressed concrete continuous rigid frame bridge is developed on the basis of continuous beam bridge and T-type rigid frame bridge. The bridges maintain both merits of continuous beam with no expansion joint and driving smooth, and merits of T-frame Bridge without needing suppose support and transform the system. In addition, the bridges also have very big flexural rigidity and crosswise torsional rigidity. Furthermore, the flexibility of the high pier is used to adaptthe structure displacement caused by the pre-stressed, the concrete shrinkage, and the creep and the temperature change.On the basis of Ronggui river bridge of Guangzhu urban express rail transp-ortation project, two points including construction technology, construction control have been engaged in research on rigid frame-continuous beam bridge.1,The construction technology of the superstructure is one of the key constructing technologies to Ronggui River Bridge. This thesis carried out the detailed treatise and study for the construction technique of 0# section, the design of the light hang-basket, construction techniques of the continuous rigid frame beam, the technique of the closure section, calculation of construction structure and etc, and they are discussed and studied detailedly. It can be as reference to constructing of the same kind of bridges.2,The construction control of the bridge is researched for the favoring completion of the bridge.