EXPRIMENT ON A MODEL STEEL BASE SHELL OF THE COMSHELL ROOF SYSTEM

A Comshell roof consists of a bolted steel base shell and cast in-situ concrete. A key design issue is the buckling strength of the steel base shell under wet concrete loading during construction. The paper looks at an experimental program involving the tests of 4 laboratory model base shells that is under way to study the buckling problem. Presented are the results from the first experiment on a model bolted steel shell as well as the experimental procedure. A new pulley-based loading system for the application of a large number of concentrated loads of equal value was designed and found to perform well. In the test of the first specimen, it was found that local buckling of the stiffeners occurred first, followed by stable postbuckling deformations. Final failure of the shell occurred by overall buckling.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 745-754

Subject/Index Terms

Filing Info

  • Accession Number: 00940477
  • Record Type: Publication
  • ISBN: 0080440177
  • Files: TRIS
  • Created Date: Apr 4 2003 12:00AM