Stone Bridge Ultimate Bearing Capacity Analysis And Influencing Factors

The stress characteristics of masonry arch bridge is more complex, This has become demestic and foreign scholars as the research object, In order to analyze its stress performance, On the calculation of ultimate bearing capacity is gradually mature, Aviod carrying capacity evaluation is too high or too low bridge, can more accurately determine its bearing capacity.Based on the load test data, the stone arch bridge is analyzed in detail. Analysis of arch combination is how to influence the structure stress and the effect on bearing capacity, effect on he bearing capacity of the influence degree is much, application of MIDAS finite telement software to bare arch and arch combination analysis done.Analysis of influence factors of arch bridge in different diseases, the influence of different influence factors on the bearing capacity of arch bridge,In addition, the arch axis is measured based on a stone arch bridge, The effect of design and the actual difference the arch axis of stone arch bridge carrying capacity and the trend of this disease, Prediction of the effect of deviation of the bearing capacity of the arch axis.The bearing capacity of the structure analysis of the finite element method, To determine the ultimate bearing capacity of stone arch bridge into the state also made the new definition, ultimate load carrying capacity analysis more accurate.From the viewpoint of mechanics, the stiffness equation of the substantive analysis of structural ultimate bearing capacity is through solving the geometrical and material nonline arity,The process of looking for the ultimate load, from the essence of the research methods of bridge bearing capacity,Variance analysis and comparison of the linear elastic stability of live load coefficient and nonlinear stability of live load coefficient between,More precise study of the bearing capacity of stone arch bridge, also influence analysis of different types of loads acting on the bearing capacity on the stone arch bridge, Also consider the impact of stone arch bridge in the partial load and load under the condition of bearing capacity of stone archbridge,More detailed consideration of load position influence on bearing capacity, but the degree of influence between the very limited. But the material nonlinear and geometric nonlinear and linear elastic analysis has the very big difference, also shows that the material nonlinear analysis of the ultimate bearing capacity is very meaningful.