Performance Of Prestressed Concrete Continuous Rigid Frame Construction Disease Causes And Protective Measures And Structural Studies

Prestressed concrete continuous rigid frame bridge is a bridge is widely used, it is a continuous beam system consolidation pier. Rigid mainly by the combination of T-type and continuous beam formation, the use of variable cross-section design to meet its internal force distribution, high pier itself has a flexible part can be offset by external load, temperature, displacement caused by creep. Because of its structural rigidity, strong seismic performance, driving comfort gentle and strong capabilities across other characteristics, selected as a priority at all levels of the construction of roads and bridges.In recent years, due to the increasingly busy transportation, road traffic increasing, making the traffic load exceeds the value of the original design of the bridge, plus some external factors, have been built partially continuous rigid frame bridge the emergence of various diseases, for these various diseases must make timely treatment to avoid serious consequences, this paper makes research in the following three aspects.(1)For continuous rigid frame bridge structure itself by force characteristics, first analyze the various structural components, understand the structural arrangement, followed by the T-shaped rigid frame and continuous beam contrast, the advantages derived structure, and finally by calculating the understanding of the main internal force distribution.(2)For continuous rigid frame bridge, full bridge may arise from various parts of the disease were elaborated types and causes of disease.(3) for the disease control measures, through the analysis of the causes of disease, put forward some measures for the prevention and treatment of disease.