Bridge Construction Monitoring And The Analysis On Genesis Of Bridge Cracks

Currently, high-speed railway construction is growing at a rapid pace in the national economy, while in the high-speed railway bridge system was widely adopted, prestressed concrete continuous beam bridge has become one of the most widely used bridge types. In the high-speed railway bridge construction process, the importance of bridge construction monitoring is gradually being taken seriously. Bridge construction monitoring to ensure the bridge into a linear bridge, and making the bridge inicrnal forces to meet the design requirements, and returned to the bridge reserved for long-term observation points, and create conditions for lifelong monitoring of bridges, providing reliable scientific data to the operational phase of bridge maintenance workThis paper systematically describes the purpose and methods of bridge construction monitoring, and taking the Shanghai-Kunming high-speed inter-State Road320interchange bridge as the main project background, through the bridge doctor finite element analysis and calculation software modeling and field measurement and adjustment, demonstrated monitoring the effect of the bridge, and illustrates the importance of monitoring in bridge construction bridge construction process of the bridge linear control. The article also uses gray system theory to predict the results of relevant and related estimating missing data, on the basis of previous theory further demonstrate the feasibility of gray in bridge construction monitoring. Finally, also for the cracks in the bridge0#blocks arise from torsional stress, the cement hydration heat, sunshine and sudden changes in temperature difference between the outside temperature to analyze the impact of the four areas, the use of ANSYS finite element software simulation model, a variety of factors Comparative analysis of the cause of the cracks, and summed up0#block cracking precautions.