Study on the construction process management and control of cable stayed bridge based on MIDAS

The cable stayed bridge is one of the main types of long span bridge with greater crossover capability and a good economical benefit. Introduced the structural analysis theory of cable stayed bridge construction control, summarized the simulation analysis methods of cable stayed bridge construction control, and described their own characteristic. The structure simulation analysis and calculation during the construction of the bridge is processed by using the large-scale general-purpose finite element analysis software MIDAS. Introduced the construction phase analysis function of the MIDAS/Civil, and select the appropriate element model to simulate the different components of the cable stayed bridge: using beam element of considering the shearing action to simulate the main beam, the Cable Support Tower and the bridge piers, using truss element to simulate the cable stayed lock, using the equivalent load method to simulate the effect of prestressing force of steel in the main beam and the suspended wagon in the bridge construction. Corresponding solutions have been put forward for the effect of non-linear factors for the construction control of cable stayed bridges.