High Piers Of Long Span Curve Continuous Rigid Frame Bridge Structure Static Analysis And Stability Characteristics

Thirty years since the reform and opening up, China’s comprehensive national strength with time constantly growing domestic urbanization and transportation infrastructure has also been rapid development, construction and development in the western and mountain urbanization process, in order to make driver driving in comfort, safety, and road alignment and the environment can be matched to adapt to reduce traffic accidents and so on in the corners at high pier prestressed concrete curved continuous rigid frame bridge has been more projects the actual use of their social cause is unpredictable. Relatively straight bridge, the high piers prestressed concrete curved continuous rigid frame bridge structure exists bending and torsion coupling, resulting in stress and deformation on both properties exhibit very complex features, particularly in the western mountains and curved bridge overpass of the city,with the two basic characteristics are high and the structure of curved pier, closer in order to ensure traffic safety, to overcome the mountain where the curved overpass bridge and the city "high, curved" two features brought risks, high pier and long span power curve performance and deformation characteristics of deep study by continuous rigid frame bridge is imminent,then the results of that research to practical projects in the construction and design can provide a strong technical support to help you more in-depth understanding of the curve relevant characteristics bridge.First of all, Research Status curve describes the history of the development of high bridge pier and it, and factors that affect the basic theoretical calculations and structural properties of curved girder bridges.Secondly, In Guilin, Lipu West cattle Bridge as an engineering example, were modeled by finite element analysis software MIDAS, and computational analysis of this bridge to the bridge after the state in weight load, two dead load, prestressed tension, system status and overall warming of internal forces deformation. Curved continuous rigid frame bridge girder and its side pier in effect under conditions A high pier by changing parameter analysis of high stress and deformation of the structure of the law, in the comparative analysis of the consolidation of two brief cases or branched in the above four conditions affecting the role of stress and deformation of the structure, while the largest cantilever T-cantilever both ends symmetrically at both ends of the sequence of construction and construction of two cases of elastic stability(ie the vertical displacement) were analyzed.Finally, the study of this subject and make the appropriate summary, we can see the curve of high pier and long span continuous rigid frame bridge in weight load, two dead load,prestressed tension, internal force and deformation of the whole system at elevated temperatures, but also know the parameters of high and side pier pier girder consolidation or simply supported two states affect the situation curved bridge, by studying the stability of the maximum elastic cantilever T-cantilever construction should be seen in a hanging basket on both ends at the same time the most secure way.