DESIGN OF THICK-WALLED MULTIPLE OPENING CONDUITS TO RESIST LARGE DISTRIBUTED LOADS

The design of multiple opening reinforced concrete conduits suitable for use as waterways through and under large earth-fill dams is discussed. Vertical overburden pressures up to 30 k/sq ft, corresponding to about 250 ft of fill, are considered. The resultant structures have members with low span/depth ratios, and the analysis and design of these structures is discussed, in a number of steps. The idealization of the thick-walled structure into a frame of linear elements is discussed, with particular attention to the joint areas. The analysis of the idealized frame is then considered. After the basic analysis is done, moments, shears, and thrusts must be found for the critical cross sections, and the selection of these sections is discussed. A criterion for the shear strengths of the deep members used in the conduits is presented. The flexural reinforcement and the detailing of the flexural steel are discussed.

  • Corporate Authors:

    University of Illinois, Urbana-Champaign

    Department of Civil and Environmental Engineering
    205 North Mathews Avenue
    Urbana, IL  USA  61801-2352
  • Authors:
    • Gamble, W L
  • Publication Date: 1977-4

Media Info

  • Pagination: 42 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00164974
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Report No. 440
  • Files: TRIS
  • Created Date: Dec 27 1977 12:00AM