EFFECT OF CROSS FRAMES ON BEHAVIOR OF STEEL GIRDER BRIDGES

Although cross frames are required before construction, their usefulness after construction has been questioned. A combination of experimental and analytical studies was conducted to investigate the performance of steel girder bridges that use different types and spacing of cross frames. The experimental investigation included construction and testing of a full-scale steel girder bridge in the laboratory. Unique characteristics of the bridge include a concrete slab designed on the basis of AASHTO's 1994 empirical design approach, which requires a minimal amount of reinforcement. Elastic and ultimate load tests were carried out, and punching shear tests were conducted after the ultimate load tests. Results of the research indicate that for bridges with zero skew, the influence of cross frames is minimal. Ultimate tests indicate that steel girder bridges have large reserve capacities. Very large punching shear capacity of the slab was also observed.

Language

  • English

Media Info

  • Features: Figures; Photos; References; Tables;
  • Pagination: p. 117-124
  • Monograph Title: FOURTH INTERNATIONAL BRIDGE ENGINEERING CONFERENCE, SAN FRANCISCO, CALIFORNIA, AUGUST 28-30, 1995. CONFERENCE PROCEEDINGS, 2 VOLUMES
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00711680
  • Record Type: Publication
  • ISBN: 0309061091
  • Files: TRIS, TRB
  • Created Date: Sep 5 1995 12:00AM