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Apr 26, 2012
Optimum Analysis of Suspenders Tensioning through Skewed Arch Bridge with Curved Beam
Authors: Haixin Huang [email protected], Bo Liu [email protected], Ying Zang [email protected], and Fan Li [email protected]Author Affiliations
Publication: ICCTP 2010: Integrated Transportation Systems: Green, Intelligent, Reliable
Abstract
Tongtai Bridge in Zhangjiakou across Qinshui River is a special type of arch bridge with skewed arch and curved beam. Different from general arch bridge, suspenders tensioning of which in construction process are more difficult and complex owing to particularly coupling effects in space. The paper is based on the analysis of traditional tensioning methods and considers the constraint condition of the structure, as well as the permissible capacity of the tensioning devices, to give an optimized suspender tensioning method, i.e. the split method of tensioning force which is developed from the influence matrix of tensioning force and the functional extremum principle. The process of suspender tensioning on the Tongtai Bridge shows that this method greatly decreases tensioning times, resulting that the finished state is reached by adding tension only three times, and hence, shorteningng the construction schedule. Furthermore, the method given here can provide a good reference for the construction of similar bridges in the future.
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© 2010 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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School of Civil Engineering, Hebei University of Technology, Tianjin 300401, PR China.E-mail: [email protected]
School of Civil Engineering, Hebei University of Technology, Tianjin 300401, PR China.E-mail: [email protected]
Library, Hebei University of Technology, Tianjin 300401 PR China.E-mail: [email protected]
School of Civil Engineering, Hebei University of Technology, Tianjin 300401, PR China.E-mail: [email protected]
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