Abstract
For solving the technical problem of accuracy control during manufacturing and vertically matching the curved steel tower of the bridge, this paper studies the accuracy control technique about it, as project example with the world’s first curved steel tower of No.3 Nanjing Yangtze River Bridge in China. Emphatically research the linear control during manufacturing and vertically matching the tower. Advance the conception of the accuracy control and build up an appropriate “Accuracy Control System” (ACS). Expound the contents of accuracy control, procedure and controlling means. Stress the research on the definition of the reference system of the tower, accumulated height error control, accumulated axis bias error control and accumulated torsion error control. Finally, in accordance with the results of accuracy control, give implement principle and method of manufacturing and vertically matching the tower. The check results show that accuracy of the control meets the design requirements and the research results are practical and reliable.
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