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BRACING OF STEEL-CONCRETE COMPOSITE BRIDGE DURING CASTING OF THE DECK

In English

Författare

  • Hassan Mehri
  • Roberto Crocetti

Summary, in English

Trapezoidal cross sections are often used as main longitudinal load-bearing systems in steel-concrete composite bridges. A critical design stage for these girders occurs during casting of the bridge deck, when the non-composite steel section must support the entire construction load, including the wet concrete. A research work was undertaken to study lateral torsional buckling (LTB) capacity and stiffness requirements of U-shaped girders with focus on discrete torsional bracing and top lateral truss bracing, under uniform loading condition due to self-weight of structural system and wet concrete. Findings are then compared with the results obtained by previous research works and common code specifications.

Publiceringsår

2012

Språk

Engelska

Dokumenttyp

Konferensbidrag

Ämne

  • Building Technologies

Nyckelord

  • stiffness
  • bracing
  • lateral torsional buckling
  • composite bridges
  • KstrStructural

Conference name

Nordic Steel Construction Conference 2012

Conference date

2012-09-05 - 2012-09-07

Conference place

Norway

Status

Published