The results of ultimate-load tests on two continuous-span composite slab-girder bridge models are presented. One of the models was a three-girder two-span structure and the other was a three-girder three-span structure. Both models were tested to failure with a single concentrated load applied over the center girder. The purpose of the tests was to determine the variations in both the distribution of moment throughout the structures and the effective widths of slab acting with each girder as the load is increased to failure. The experimental results are compared with an existing analytical procedure and a major conclusion is that the analytical procedure may be used to conservatively model actual bridge structures up to failure loads. In addition, it is concluded that effective widths and distribution factors at failure loads are significantly different from values obtained at service loads. The implications of the latter observations in bridge design are discussed.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Botzler, P W
    • Colville, J
  • Publication Date: 1979-9

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00303371
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jan 30 1980 12:00AM