2012, Volume 14, Issue 5
Strategic Study of CAE >> 2012, Volume 14, Issue 5
Determination of lifting sequence of steel box girders of suspension main bridge of Taizhou Bridge
1. Jiangsu Provincial Yangtze River Highway Bridge Construction Commanding Department, Taizhou, Jiangsu 225321, China;
2. CCC-SHB Second Engineering Co. Ltd., Xi'an 710119, China
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Abstract
Taizhou Bridge is the first three-tower two-span suspension bridge with spans over 1 000 m in the world. Its main spans are 2×1 080 m; the middle tower is a steel frame with longitudinal herringbone shape and lateral gate shape; the side towers are gate shaped concrete frames; the stiff girder consists of flat streamline steel box girders, with a total of 136 steel box girders of about 33 426 t for the whole bridge. This article determines the proper lifting sequence of steel box girders of this threetower suspension bridge by analyzing the effect of steel box girders lifting sequence on structural system and difficulty in construction .
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