ハイブリッド吊床版道路橋の提案 : (その2)ケーブルの試設計(都市基盤デザイン工学科)

Abstract

In 'Part 1' of this study, hybrid stress-ribbon vehicle bridges with a span length of L=200, 400 or 600m are proposed, and the preliminary design of superstructure and the examination of their static characteristics are made. The details of the preliminary design of upper and lower cables of the bridges are reported here as 'Part 2' of this study. Also the static characteristics of cables were examined. The findings revealed that the total number of the upper and lower cable strand was respectively found to be 16, 40 and 60. The diameters of the 16-, 40- and 60-strand single cable were estimated to be 26, 40 and 50cm and are not too large. Also it was found that the deflection and deformation of girder was well controlled by the upper cable and that the maximum normal force in the lower cable was 90% of the resisting force.