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Distribution of Loads in Beam and Slab Bridge Floors

File Language:
English


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  • Creators:
    Senne Jr, Joseph Harold
  • Corporate Creators:
    Iowa State University of Science and Technology
  • Subject/TRT Terms:
  • Resource Type:
    Thesis
  • Geographical Coverage:
    United States
  • Corporate Publisher:
    Iowa State University of Science and Technology
  • Abstract:
    Bridge Floors Currently most states use the American Association of State Highway Officials (AASHO) specifications for design of slab and beam floor systems. Since the present AASHO specifications (1957) show considerable error in the load distribution to the beams of some bridges, a number of methods have been developed by various individuals in order to obtain a closer correlation between design and test results. Some of these methods are discussed briefly in the Review of Literature section. In the present investigation another method is presented in which the distribution is solved in formula form for individual loadings instead of truck loadings. The solutions of the equations for the formulas are quite tedious but can be easily programmed and solved by a computer, thus eliminating the main disadvantage in solutions of this type. The theoretical results of this method were compared to tests using single loads on two laboratory test bridges and also with tests from two full-sized highway simple span bridges and two four span continuous highway bridges. The theory and test results are in close agreement; and as the use of electronic computers becomes more widespread in the highway field, this method will most likely take on more significance for the practical designer. In addition to the load distribution analysis, some work was also conducted in connection with deflections and shearing forces in the slab. The effective width of slab in connection with slab design was also studied.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:1dbb6b47f62d977905514c067e16495f4cd7c19ff6b776e5e5698abc933cd6de
  • Download URL:
  • File Type:
    Filetype[PDF - 2.66 MB ]
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