PRECAST PRESTRESSED CONCRETE PILES: INTEGRAL ABUTMENT BRIDGES. PHASE 2: FIELD STUDIES

The purpose of this phase of the research described in this report was to study the behavior of two prestressed concrete piles in an integral abutment bridge which undergo horizontal movements due to superstructure temperature changes. The site was chosen to represent a typical grade separation structure in eastern Nebraska for which no information on the response of horizontally displaced piles was available. Piles were installed in predrilled holes in the approach fill. The void space around the piles was backfilled with loose sand. Before abutment construction, horizontal load tests were conducted to develop field p-y curves. After construction, observations were made on taped changes in bridge deck length as well as horizontal deflections of the piles by means of inclinometer profiles. Observations and analysis indicate that an iterative procedure can be used to estimate horizontal loads and moments induced in fixed-head piles resulting from horizontal displacements within the range of ambient temperatures recorded.

  • Supplemental Notes:
    • Sponsored by the Nebraska Department of Roads, the Precast Concrete Association of Nebraska and the Center for Infrastructure Research of the University of Nebraska-Lincoln.
  • Corporate Authors:

    University of Nebraska, Lincoln

    College of Engineering and Technology
    Lincoln, NE  United States  68503
  • Authors:
    • Benak, J V
    • Tadros, M K
  • Publication Date: 1996-3

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 63 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00724571
  • Record Type: Publication
  • Report/Paper Numbers: Proj. No. RES1(0099)P459
  • Files: TRIS
  • Created Date: Aug 14 1996 12:00AM