Construction Control And Simulation Analysis Of Tie Luo Ping Cable-Stayed Bridge

Modern cable-stayed bridge with its good performance and the structure and the ability to leap beautiful architectural modeling in the modern bridge structure play an important role, the cable-stayed bridge construction simulation technology and control theory are becoming increasingly mature, in the present paper has been based on the research results, take Tie Luo Ping cable-stayed bridge as the object of study, cable-stayed bridge construction control simulation, the main sub-cantilever beam gating process control issues was also discussed.This paper first reviews the history of the development of domestic and international cable-stayed bridge, the construction of a cable-stayed bridge control of the domestic and international situation and development prospects, and then introduced a cable-stayed bridge construction control of the basic theory, implementation procedures, as well as the contributing factor of bridge construction control were recommended.Second, the analysis and calculation method of structure model were discussed in-details, some problems were taken into account, according to the design theory of the cable-stayed bridge and to the feature of the cantilever construction, emulation analysis for construction sequences of cable-stayed bridge is presented. A forward-analysis method is introduced, in which the actual construction process is considered, by all conditions of the cable force, the internal force, displacement values, and choose a representative of the cable and beam construction research shows that in the process of construction some changes in the law for the implementation of Construction Control laid the theoretical trajectory.Finally, Tie Luo Ping Bridge Construction Programme and construction technology, construction of the main elements of the monitoring and operation processes was elaborated, detailed description of the actual construction process should be noted that the issue of control and accuracy. As in the actual casting of cantilever beam in the front of the elevation changes of the simulation calculation and the elevation changes are some differences, thereby affecting the determination of elevation model legislation, this paper introduces BP artificial neural networks to the construction beam of the front elevation changes predict, it will affect the beam elevation changes in factors such as distance has been the construction of the tower beam from the center of, the corresponding tension cables third the size of tension when the atmospheric temperature, the elevation changes theoretical calculation as input samples , will be measured as output samples elevation changes of BP network training, use of BP network with the input parameters and output parameters in nonlinear relationship between the characteristics of the follow-up beam in the third tensioned cables after the elevation changes forecast for the construction control reference. Through the predictive value compared with the measured values show that the two good agreement, BP will prove that the neural network for cable-stayed bridge construction control is reasonable and feasible. In addition to summing up and some of the reasons for the prediction accuracy of the network for reference.