COMPOSITE CONDUIT CONSTRUCTION FOR LOWER COST INSTALLATIONS AND IMPROVED PERFORMANCE

Substantial reductions in material costs of conduits may be obtained by partially or fully surrounding specially designed thin-shelled core units with structurally bonded concrete or with a combination of concrete and soil-cement. Analyses are made of composite concrete conduits with side support varying from undisturbed trenches through recompacted soil to those with no lateral support. Analyses are made of controlling moments, shears, and thrusts for various angles of encasement at the bottom and sides or for encasement fully surrounding the core units. From these values, comparisions are made of allowable loads on unreinforced concrete composite conduits and of relative amounts of tensile reinforcement required in reinforced conduits. Tests are described in which performance and installations of conventional pipe sections are compared with those of composite sections under similar loads to verify previously described analyses.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1975/556/556-002.pdf
• Summary URL:
  • https://scholar.google.com/scholar_lookup?title=COMPOSITE+CONDUIT+CONSTRUCTION+FOR+LOWER+COST+INSTALLATIONS+AND+IMPROVED+PERFORMANCE&author=T.+Breitfuss&publication_year=1975
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309024633
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Subsurface Structures Design. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Breitfuss, Thomas K
• Discussers:
  • Spangler, M G
• Conference:
  • 54th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia
  • Date: 1975-1-13 to 1975-1-17
• Publication Date: 1975

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 6-24
• Monograph Title: Water Quality, Conduits, and Geometrics
• Serial:
  • Transportation Research Record
  • Issue Number: 556
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Building materials; Composite structures; Concrete; Conduits; Construction; Costs; Engineering moments; Loads; Performance; Shear strength; Soil cement; Structural supports; Testing; Thrust
• Old TRIS Terms: Moments; Supports
• Subject Areas: Construction; Finance; Highways; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00131183
• Record Type: Publication
• ISBN: 0309024633
• Files: TRIS, TRB
• Created Date: May 14 1976 12:00AM