Optimization of Cable Prestresses of Cable Stayed Bridges Based on Minimum Strain Energy Criterionby Kohei Furukawa, Yamaguchi Univ, Japan,
Hiroyuki Sugimoto, Yamaguchi Univ, Japan,
Kohichi Inoue, Yamaguchi Univ, Japan,
Yoshikazu Yamada, Yamaguchi Univ, Japan,
Abstract: In this study, an attempt is made to determine the optimum cable prestresses based on the strain energy criterion. The validity of the strain energy criterion on the optimum cable prestresses is proved by simple models. This proposed method is applied to some actual cable stayed bridges. The results show that the proposed strain energy criterion is very useful to determine the optimum cable prestresses even in the case of a multi-cable type.
Subject Headings: Cables | Cable stayed bridges | Prestressing | Strain | Moment distribution | Bridge design | Girder bridges
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