Influence Of The Support Layout Form On The Overturning Performance Of Single Column Pier Curved Girder Bridge

Curved girder bridge with structure light and beautiful and strong ability to adapt to the environment has become the indispensable structure of city overpass.But due to the urban traffic pressure and design phase of the specification cannot meet the actual requirements of the factors leading to several bridges,overturning accident,which brings great hidden danger for the safety of the people life and property.The influence of support arrangement form on the capsize performance of single pier curved girder bridge is studied in this paper.To study the failure mechanism of the curved girder bridge and the main influence factors of the bridge structure in the anti-overturn.Through the theoretical study and MIDAS civil,the finite element model is established to verify the current bridge overturning code.Through the data comparison,the two important verification overturning control factors of the support in tension and torsion angle are analyzed,and the results show that the torsion is the control factor of the overturning calculation of curve beam.Application of grillage method Midas curve beam bridge modeling,through the stress performance of the model under partial load conditions.through the analysis of the stress performance of the model under partial load conditions,the stress characteristics of curved girder bridge in actual operation process are obtained;through different width span ratio,bearing eccentricity,deck width and bearing transverse spacing ratio setting on the basis of the above models,compared and analyzed the influence of bearing arrangement for single column pier curve beam bridge of anti-overturning.