Static And Parameter Sensitivity Analysis Of A Single Pylon Cable-Stayed Bridge

In recent years, due to the single pylon cable-stayed bridge in the aestheticadvantages, the rapid development of cable-stayed bridge in our country, as theuniqueness of the structure of single pylon cable-stayed bridge, there have largedifference in the design and construction process with other bridge. The paper taking asingle pylon cable-stayed bridge under construction in anhui as the engineeringbackground, analyzed the following main contents:The paper first reviews the development situation of single pylon cable-stayed bridgeand briefly analyzed the structure characteristic and research status of single pyloncable-stayed bridge; More detailed introduces the minimum bending energy method andstress balance method in determining cable force, combined with engineeringbackground, integrated use of the above two methods to determine the cable force andinspection the state of girder,pylon,cable-stayed in bridge completedï¼›Analyzes andsummarizes the structural parameters on the mechanical behavior of the cable-stayedbridge, discuss the impact of structural parameters such as beam weight, structuralrigidity, cable-stayed tension, temperature, shrinkage and creep of concrete on the stateof completed bridge, calculation and comparative analysis of the results show that theweight of main girder and cable tension and temperature impact on the state ofcompleted bridge are larger; Using the finite element software MIDAS, then thesimulation analysis and comparision of construction process of two differentconstruction schemes is done, compared the effects of two different construction plan tocompleted bridge and construction status;Research the influence of cable-stayed sageffect on its inclination and cable tension, and correct inclination,then conclude therelationship between the nominal tension and construction cable force; Establish thegirder space model under the state of construction by ANSYS; Analysis of the girderstress distribution and deformation law under the construction condition, the results ofwitch can supply references for the construction control and design of the same typecable-stayed bridges.