Precast Bent System for High Seismic Regions, Appendix C: Design Example No. 2

The final report that accompanies this appendix is a technical resource that provides background information on the use of a precast bent system for use in high seismic regions. The system is designed for, and intended to be used with, prestressed girder bridges that are built integrally with the supporting intermediate piers. This appendix (Appendix C) is the second of two design examples that were prepared to guide engineers through the application of the American Association of State Highway and Transportation Officials (AASHTO) Seismic Guide Specifications to the Highways for LIFE precast bridge bent system, along with the supplemental design provisions that have been proposed as an appendix to the AASHTO Seismic Guide Specifications. Particular emphasis is given to the design and detailing of the connections between precast elements to ensure ductile energy dissipating behavior within the plastic hinge regions of the columns and capacity protection throughout the remainder of the structure. This design example uses an actual bridge recently designed by Washington State Department of Transportation, the US 101 Bone River Bridge replacement near Raymond. The new bridge will be a three-span structure, with the two-column intermediate bents and the short-stem seat abutments each supported by two oversized pile shaft foundations. The superstructure will consist of four prestressed concrete wide flange girders that will be made continuous at the integral dropped cap beam at the intermediate piers. The precast concrete columns were connected to the pile shaft foundations using a socket connection similar to the large-scale laboratory tests described in the final project report.

• Record URL:
  • https://doi.org/10.21949/1506039
• Record URL:
  • http://www.fhwa.dot.gov/hfl/pubs/hif13037/hif13037c.pdf
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/42684
• Supplemental Notes:
  • This is an appendix to the final project report, Precast Bent System for High Seismic Regions (FHWA-HIF-13-037).
• Corporate Authors:

  BergerABAM Engineers, Incorporated

  33301 Ninth Avenue South, Suite 300
  Federal Way, WA  United States  98003-2600

  University of Washington, Seattle

  Seattle, WA  United States  98195

  Washington State Department of Transportation

  Olympia, WA  United States  98504-5201

  Concrete Technology Corporation

  1123 Port of Tacoma Road
  Tacoma, WA  United States  98467

  Federal Highway Administration

  Highways for LIFE Technology Partnerships Program
  1200 New Jersey Avenue, SE
  Washington, DC    20590
• Authors:
  • Marsh, M Lee
  • Stringer, Stuart J
  • Stanton, John F
  • Eberhard, Marc O
  • Haraldsson, Olafur S
  • Tran, Hung Viet
  • Khaleghi, Bijan
  • Schultz, Eric
  • Seguirant, Steve
• Publication Date: 2013-6

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Figures; References; Tables;
• Pagination: 33p

Subject/Index Terms

• TRT Terms: Bents; Bridge construction; Bridge design; Bridge foundations; Columns; Demonstration projects; Dissipation; Earthquake resistant design; Girder bridges; Hinges; Precast concrete; Structural connection
• Identifier Terms: AASHTO LRFD Bridge Design Specifications
• Geographic Terms: Washington (State)
• Subject Areas: Bridges and other structures; Construction; Design; Highways; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01502073
• Record Type: Publication
• Report/Paper Numbers: FHWA-HIF-13-037-C
• Contract Numbers: DTFH61-09-G-00005
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Dec 23 2013 7:53AM