Bi-Prestressing System Makes the Girder Depth Lower

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  • Hioki I.
    神戸市開発局西神開発事務所工事課
  • Hiraishi S.
    神戸市開発局西神開発事務所工務第一係
  • Fushimi K.
    (株)ウエスコ兵庫支社技術部構造設計課
  • Kuwahara M.
    オリエンタルコンクリート(株)大阪支店工務部

Bibliographic Information

Other Title
  • バイプレストレッシング工法による歩道橋の設計と施工
  • Design and construction of Chuo-Koen foot-bridge
  • 中央公園橋(仮称)

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Description

This paper presents design and construction of the bi-prestressed foot-bridge whose depth-span ratio is 1/38. Bi-Prestressing System requires typical post-compressioning prestressing tendons arranged in the upper part of the girder that offset unfavorable axial compressive stresses due to conventional post-tensioning tendons located normally in the lower part of the girder. This system makes the depth of prestressed girder more reduced and gives the best choice when the space below the bridge is not enough.

Journal

  • Concrete Journal

    Concrete Journal 28 (4), 44-52, 1990

    Japan Concrete Institute

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