Double Skin Composite Construction for Submerged Tube Tunnelsby Rangachari Narayanan, Steel Construction Inst, Ascot, United Kingdom,
Terance Martin Roberts, Steel Construction Inst, Ascot, United Kingdom,
Abstract: A new form of sandwich construction consisting of two relatively thin steel plates, with a concrete infill has been developed for use in the construction of submerged tube tunnels. The paper describes the advantages of the system and summarizes the investigations carried out so far to assess the axial, flexural and combined resistance of the structural elements which make up the tunnel. A simple analytical model for the strength assessment of a complete tunnel cross-section test specimen, is outlined.
Subject Headings: Steel construction | Composite construction | Steel structures | Steel plates | Tunnels | Underwater structures | Structural analysis | Steel columns
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