Simulation Analysis Of Large Span Continuous Bridges Of Railway

This article takes Wan chuan creek Bridge as the research background, the paper analyzed construction monitoring of the bridge with " bridge of the dynamic process simulation of specialized computer software CSB" for construction simulation and control. In order to prove its reasonableness and accuracy in the construction, South Korea's large-scale general-purpose finite element software MIDAS-CIVIL was used for the bridge's construction control and simulation analysis, with their result checked with each other and coMpared with test results, the accuracy of calculating analysis and effect of construction monitoring were proved.The main topics of the paper can be listed as following:First, it briefly introduced the development and application of the Continuous Bridge at home and abroad and gives the advantages o fit's use in the rail. In the paper, it gives the influencing factors of continuous bridge, such as construction control, content, and characteristics; it also gives the measures to prevent them.Second, According to the contents of this research project, it gives a brief introduction of theory in the bridge structure calculation it also takes on the comparison of the short-term shrinkage and creep and shrinkage and creep on the long-term impact of the bridge, and gives the relevant theory and calculation method.Third, to ensure the accuracy of the data, which was monitoring the dynamic process of bridge construction, it compares with the CSB and MIDAS-CIVIL respective, at the same time, it also considers the critical data.Fourth, it checks the data which was obtained by the CSB and the MIDAS-CIVIL and considers the difference between them.Finally, to make sure the theoretical data is correct, it compares the data obtained in actual construction and theoretical analysis and the results shows that achieves good results.