EXPERIMENTAL VERIFICATION OF LOAD AND RESISTANCE FACTOR INELASTIC DESIGN LIMITS

More economical steel bridge designs can be realized using inelastic design provisions. However, current provisions apply only to compact steel bridges. Expanding inelastic design provisions to include noncompact sections is desirable because of the wide use of plate girders with thin webs. Previous research has shown that noncompact girders have predictable moment-rotation behavior that can be incorporated into inelastic design provisions. However, even though the analytical tools exist, large-scale testing is necessary to validate theoretical engineering practice. A report is given of the first of three composite continuous girder tests from a project with the objectives of validating current inelastic design procedures and developing new provisions for bridges comprising noncompact girders. The first girder test was a half-scale, three-span composite beam with compact sections extracted from a prototype bridge designed using inelastic procedures. The two future tests will be two-span composite beams with noncompact sections. The results of the first girder test show that current analytical techniques effectively predict the elastic and inelastic behavior of compact girders. The first test also validated the inelastic design provisions at all design limit states.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 14-21
  • Monograph Title: Steel, concrete, and wood bridges
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00711789
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 25 1995 12:00AM