A method of estimating the load carrying of steel W-shape beams with reinforced eccentric web openings is developed. The analysis is limited to single rectangular openings and to reinforcing bars positioned above and below the opening and oriented parallel to the edges of the opening. Computer solutions in the form of interaction diagrams relating the shear and moment at the center of the opening can be generated using an iterative process. The coordinates of points defining an approximate interaction diagram suitable for design are also derived. Examples of interaction diagrams for a specified yield stress and selected beam and opening dimensions are presented to illustrate the effects of varying reinforcing area, opening length, and opening eccentricity on the strength of a beam with a web opening. For the range of opening eccentricity considered in the examples, the eccentricity could be neglected for design purposes.

  • Corporate Authors:

    American Society of Civil Engineers

    345 East 47th Street
    New York, NY  United States  10017-2398
  • Authors:
    • Wang, T M
    • Snell, R R
    • Cooper, P B
  • Publication Date: 1975-9

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 17 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00127202
  • Record Type: Publication
  • Report/Paper Numbers: ASCE #11540 Proceeding
  • Files: TRIS
  • Created Date: Dec 29 1975 12:00AM