Large Bridge Deformation Measurement Method And Its Application In The Pingzhai Bridge Construction Monitoring Study

The monitor and the monitoring to the construction process of the bridge structure various parts of distortions is in the construction process the bridge structure closes up the precision and linear conforms to the design request technical guarantee. The bridge construction monitoring is carrying on the monitor to the construction process, collecting the controlled parameter, analyzing construction error, through the theoretical calculation and the actual result comparative analysis, the error adjusts, forecast the following construction process the structure shape, proposed the following construction process should adopt the technical measure, adjusts the essential construction craft and the technical plan, causes the structure endogen force and linear is in within the effective control, and maximum limit conforms to the design perfect condition, guarantees the construction quality and the security.This article reviews the bridge development course, summarizes the great span bridge construction monitoring importance as well as the domestic and foreign research present situation, analyzes the reason which the bridge distortion produces, elaborates the great span bridge construction monitoring principle and the method, and take the Guizhou PingZhai Bridge as the project background, study the security control problem at stage of the construction of super-huge bridge, make the construction monitoring plan, control each link in its course of construction strictly, join the curve with designing the axis of joining to be identical while closing up, guarantee construction course is safe and reliable. The main research contents herein include:1. To the detailed conditions of the PingZhai Bridge, make the construction monitoring plan, construct and control it strictly in the whole course.2. Discuss the application of high-accuracy survey robot in the bridge monitoring application.3. Established a precision measurement early warning system with survey, examination, the prompt early warning function, developed a set of bridge information management systems with the function of datum recorded data processing, simplified the hard work of bridge workers, and also causes the monitoring work systematized and more succinct.