CONSTRUCTION TOLERANCES IN REINFORCED CONCRETE BEAM/JOISTS

This investigation was a pilot study to develop the technique for nondestructive measurement of variations in depth, width, and location of reinforcing steel in existing reinforced concrete beams and joists of 8 in. (20.3 cm) or greater depth. Data were collected on beams and joists chosen from five structures by both optical and electronic measuring devices. Statistical evaluation of this data is presented as well as a computer analysis of the approximate effect of such variations on the strength of the sections. The study proves the technique and gives bounds to the problem, and as such is not all-encompassing. Further study is shown to be a necessity, as the results reveal that current as-built structures normally exceed the design-assumed tolerances.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0889325X
• Corporate Authors:

  American Concrete Institute

  P.O. Box 19150, Redford Station, 22400 Seven Mile Road
  Detroit, MI  United States  48219
• Authors:
  • Connolly, J P
  • Brown, D M
• Publication Date: 1976-11

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 613-617
• Serial:
  • American Concrete Institute, Journal of
  • Volume: 73
  • Issue Number: 11
  • Publisher: American Concrete Institute
  • ISSN: 0889-325X

Subject/Index Terms

• TRT Terms: Beams; Depth; Framed structures; Location; Measurement; Nondestructive tests; Reinforced concrete; Reinforcing steel; Strength of materials; Tolerances (Engineering); Variables; Width
• Uncontrolled Terms: Joists; Reinforced concrete beams
• Old TRIS Terms: Tolerances; Variations
• Subject Areas: Bridges and other structures; Construction; Highways;

Filing Info

• Accession Number: 00163627
• Record Type: Publication
• Report/Paper Numbers: Title NO. 73-51
• Files: TRIS
• Created Date: Oct 29 1977 12:00AM