Study Of Construction Monitoring And Control Technique For Low Tower Cable-stayed Bridges

Along with the development of China's communications, shorter tower cable-stayed bridge as a new type of bridge to enter people's vision.Relying on paper-of Wuxi City Road canal bridge construction monitoring, the analysis concluded dwarf tower cable-stayed bridge construction monitoring the development trends, the latest research dwarf tower cable-stayed bridge construction control theory and methods, the development and construction control cable-stayed bridge The calculation error adjustment problems.The short tower diagonal cable bridge's monitoring includes the linearity, the stress and the Tension three aspect content, has the same level importance, must the positive control be able to cause the construction to carry on smoothly, can achieve the design point. Divides the model through the establishment structure, chooses the appropriate influencing factor, Including design parameter's recognition and the adjustment, the construction craft, the construction monitoring method, the temperature effect, the concretes elasticity coefficient and the contraction continuous variation effect and so on, and passes through the monitor, the feedback, predict that realizes the bridge linearity, the stress as well as Tension's control, achieves the predetermined goal.Dwarf tower cable-stayed bridge for the characteristics of the Canal Bridge Road-a dwarf tower cable-stayed bridge construction monitoring techniques developed a reasonable monitoring programme. The establishment of a comprehensive monitoring system, the use of this monitoring system, in control of the process of actual construction, the shorter tower cable-stayed bridge to stress, cable, and the precise elevation measurements, better access to the scene measured data. By Dr. bridges in the whole structure of the bridge simulation, supplemented by Midas to consider contraction creep on the impact of stress control. Of the Canal Road-tower cable-stayed bridge short of the line, stress, control of the cable achieved good results. Similar to the future construction of the bridge can be provided from the monitoring programme.