Efficiency of Tensioning of Corrugated Steel Structures

Corrugated steel structures deform during backfilling process. This phenomneon is beneficial if is controlled properly. Deformation is a result of earth pressure and results in generating of internal forces in the steel shell. A very similar effect occurs when cable-tensioning concrete girders. Thus the behavior of corrugated steel structure was considered in the view of tensioning it in the backiffiling process. By measuring changes of curvature one can determine tensioning force and internal forces in the steel. Relations between peaking and lateral shortening can be observed on various graphs . Number of equations proposed in the paper allow for calculation of characteristic changes of geometry of the corrugated steel structure during tensioning it by means of compacted soil. Controlled process of backiffiling together with sound methodology of evaluating the magnitude of internal forces based on deformations of the corruagted steel can lead to increase of safety and optimal design of flexible culverts.

Language

  • English

Media Info

  • Media Type: DVD
  • Features: Figures; Photos; References; Tables;
  • Pagination: 22p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01152263
  • Record Type: Publication
  • Report/Paper Numbers: 10-0903
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 10:25AM