TESTING OF HIGH-PERFORMANCE CONCRETE SINGLE-SPAN BOX GIRDER

As part of a multistate research program on use of high-performance concrete (HPC) in highway bridges, a bridge originally designed as a three-span adjacent box girder bridge was converted to a single-span bridge by using 70-MPa HPC and 15-mm strands. As part of the research, a test beam was constructed and tested. Instruments placed in the beam before casting were used to measure transfer length, which was found to be approximately 1.22 m, larger than the 50-bar diameters usually used in the American Association of State Highway and Transportation Officials (AASHTO) Standard Specifications but consistent with recent studies. After the beam concrete reached the required compressive strength, it was tested to destruction. The beam was able to resist the required AASHTO ultimate moment without failure. It was found that the AASHTO cracking load was conservative for this beam, mostly because the measured modulus of rupture greatly exceeded the value assumed in the AASHTO specifications. The behavior of the beam was successfully predicted using a section analysis.

• Record URL:
  https://doi.org/10.3141/1624-14
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=TESTING+OF+HIGH-PERFORMANCE+CONCRETE+SINGLE-SPAN+BOX+GIRDER&author=R.+Miller&author=B.+Shahrooz&author=T.+Baseheart&author=E.+Long&author=J.+Jones&author=R.+Knarr&author=R.+Sprague&publication_year=1998
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309064694
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1624, Structural Analysis and Design: Bridges, Culverts, and Pipes.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Miller, R
  • Shahrooz, B
  • Baseheart, T M
  • Long, E
  • Jones, J
  • Knarr, R
  • Sprague, R
• Publication Date: 1998

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: p. 118-124
• Serial:
  • Transportation Research Record
  • Issue Number: 1624
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Beams; Box girders; Compressive strength; Concrete tests; Flexural strength; Forecasting; High performance concrete; Highway bridges; Mechanical tests; Modulus of rupture; Specifications; Structural tests; Time duration; Transfers
• Identifier Terms: American Association of State Highway and Transportation Officials
• Uncontrolled Terms: Destructive testing; Transfer length
• Old TRIS Terms: Section analysis
• Subject Areas: Bridges and other structures; Design; Finance; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00756079
• Record Type: Publication
• ISBN: 0309064694
• Files: TRIS, TRB
• Created Date: Nov 3 2001 12:00AM