COMPUTER-AIDED DESIGN OF STUB-GIRDER SYSTEM

This paper presents discussion and comparison of three analysis models. The Non-Prismatic Beam Model, the simplist of the three, uses the method of numerical integration for analysis of the stub-girder system as a variable cross section beam. In the numerical procedure, distributed and concentrated external loads are replaced by equivalent concentrated loads spaced equally along the beam at specified pivot points. The Vierendeel Truss Model, which lends itself especially well to the stub-girder system due to its structural nature, analyzes the system by the stiffness method for plane frames. The Finite Element Model is comprised of two-dimensional quadrilateral elements. In comparing the three models, the non-prismatic beam program provides consistently unconservative results when compared to the more accurate Viernendeel Truss Program and Finite Element Program; however, the simplicity of the program and its capabilities for use as a design tool make the non- prismatic beam program a desirable resource. Also included in this paper is a discussion of three parametic studies- stub-girder stiffness ratio, stub-girder length ratio, and stub length ratio, and of design procedure.

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  • Corporate Authors:

    American Institute of Steel Construction

    101 Park Avenue
    New York, NY  United States  10017
  • Authors:
    • Wang, LRL
    • Gotschall, JJA
  • Publication Date: 1980

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 25-32
  • Serial:
    • Engineering Journal
    • Volume: 17
    • Issue Number: 2
    • Publisher: American Institute of Steel Construction
    • ISSN: 0013-8029

Subject/Index Terms

Filing Info

  • Accession Number: 00319402
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 19 1981 12:00AM