Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (9): 76-79,89.

• Traffic & Transportation Engineering • Previous Articles     Next Articles

Efect of Location of Temporary Pier in Incremental Launching Construction on M anufacture Error of Girder

Wang Wei-feng1  Lin Jun-feng1  Ma Wen-tian2   

  1. 1.School of Trafic and Communications,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China;2.Guangzhou Highway Bureau,Guangzhou 510080,Guangdong,China
  • Received:2005-10-13 Online:2006-09-25 Published:2006-09-25
  • Contact: 王卫锋(1967-)，男，博士，副教授，主要从事桥梁结构研究． E-mail:ctwfwang@scut.edu.cn
  • About author:王卫锋(1967-)，男，博士，副教授，主要从事桥梁结构研究．

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Abstract:

According to the characteristics of the incremental launching construction for continuous girder bridges and the variation of the internal force during the construction,a simplified structural calculation model was estab-lished by means of the displacement method.The proposed model was then used to analyze the efect of the location of temporary pier on the manufacture error of the girder and to reveal the relationship between the location and the corners at the ends of the incremental segments during the incremental launching construction of the continuous girder bridge.Consequently,the optimum position of the temporary pier propitious to the reduction of manufacture error was obtained.The proposed model was finally applied to the project of Zhujiang Western Bridge,the results verifying the correctness of the optimization results.

Key words: structural calculation model, displacement me thod, increme ntal launching, temporary pier, manufacture elror