2012, Volume 14, Issue 5
Strategic Study of CAE >> 2012, Volume 14, Issue 5
The error adjusting method of lineshape control for the middle steel tower of Taizhou Bridge
1. Jiangsu Provicial Yangtze River Highway Bridge Construction Commanding Department, Taizhou, Jiangsu 225321, China;
2. CCCC Second Harbour Engineering Company Ltd., Wuhan 430040, China;
3. Key Lab of Large-span Bridge Construction Technology, Ministry of Communication, Wuhan 430040, China
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Abstract
The middle tower of Taizhou Bridge is a steel frame with longitudinal herringbone shape and lateral gate shape, which is used for the first time. The technology with segments fabricated in the factory and erection at site is used in the construction of the middle steel tower. A full-procedure construction control system to the complicated tower is set up. Based on precise monitoring and control to the shape of the segments and the line-shape of the tower at the fabrication stage, the adjustment of the adjusting gap of the tower is calculated according to the actual error of the tower at the erection stage, and the line-shape error of the tower is adjusted. The result of the implementation of the middle steel tower of Taizhou Bridge indicated that the line-shape control method adapted could be effective, and the precision of final line-shape of the middle steel tower is better than that of the design requirements.
Keywords
Taizhou Bridge ; middle steel tower ; line shape control ; error adjusting
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