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.
- 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.
University of Nebraska, LincolnCollege of Engineering and Technology
Lincoln, NE United States 68503
- Benak, J V
- Tadros, M K
- Publication Date: 1996-3
- Features: Figures; References; Tables;
- Pagination: 63 p.
- TRT Terms: Abutments; Bridge superstructures; Bridges; Dislocation (Geology); Load tests; Loads; Piles (Supports); Precast concrete; Prestressed concrete; Temperature
- Uncontrolled Terms: Horizontal loads
- Old TRIS Terms: Changes; Horizontal displacement; Prestressed concrete piles
- Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls;
- Accession Number: 00724571
- Record Type: Publication
- Report/Paper Numbers: Proj. No. RES1(0099)P459
- Files: TRIS
- Created Date: Aug 14 1996 12:00AM