Simplified Full-Depth Precast Concrete Deck Panel Systems

Full-depth precast concrete deck panels have been widely used in accelerated bridge construction (ABC) in various forms and sizes. As a prefabricated component, current panel design has played a major role in meeting the objectives of ABC by expediting construction, improving quality and durability, improving public and worker safety, and reducing road user impact. Typically, deck panels are connected to the supporting beams by shear connectors in formed openings in panels (i.e., shear pocket) to achieve a composite action between beams and precast concrete deck panels on a bridge. Because these deck panel systems are connected for their full length to the supporting beams, the design is similar to traditional cast-in-place decks. However, constructability poses some challenges. One of the disadvantages of the current system is poor bond between the grout and the panel-soffit. Another disadvantage is the work associated with grouting/concreting the numerous shear pockets and the longitudinal beam haunches. Specifically, the leveling, sealing, forming, grouting, and concreting can be time consuming and require access from above and below the deck. This access requirement may create adverse traffic impacts. A new system that can overcome these constructability challenges by reducing the number of or eliminating the shear pockets would provide additional benefits to this construction technique. The objective of this research is to develop recommended guidelines and proposed American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Specification language for the design, fabrication, and construction of transverse full-depth precast concrete deck panel systems that simplify the connection between the deck panel and beam. As a minimum, the proposed systems should consider constructability, inspection during construction, reducing the impact of construction on traffic, and future deck replacement. Accomplishment of the project objective will require at least the following tasks: PHASE I--Planning - (1). Conduct a critical review of relevant specifications, technical literature, and owner and industry experiences. The review should cover research findings from both domestic and foreign sources. (2). Based upon the review and assessment of the findings in Task 1 as well as the research objective, propose conceptual designs for transverse full-depth precast concrete deck panel systems with simplified connection details (e.g., deck panels connected to the supporting beams to achieve composite action at the panel transverse joints only without grouting the gap formed between the unconnected panel-soffits and the tops of supporting beams as shown below) to be developed, validated, and detailed in this project. (3). Propose analytical and testing programs to investigate the proposed full-depth precast concrete deck panel systems. The testing program should cover the design of full-scale and mock-up laboratory specimens to be tested in Phase III for each proposed full-depth panel deck system. The mock-up should replicate the construction process and be tested for strength and serviceability. The mock-up design should consider the scale effect and configurations on the accuracy of the results.(4). Prepare Interim Report No. 1 that documents Tasks 1 through 3 and provides an updated work plan for the remainder of the project. This report is due no later than 6 months after the contract award. The updated plan must describe the process and rationale for the work proposed for Phases II through V. PHASE II--Analytical Program - (5). Execute the approved work plan for the analytical program. (6). Finalize the testing program to validate the findings of the analytical program. (7). Prepare a detailed outline with annotated description for the recommended guidelines and proposed AASHTO LRFD Specifications. The guidelines should include criteria and restrictions for each proposed system and simplified design procedures with examples for various beam spacings.(8). Prepare Interim Report No. 2 that documents Tasks 5 through 7 and provides an updated work plan for the remainder of the project. This report is due no later than 9 months after approval of Phase I. The updated plan must describe the work proposed for Phases III through V. PHASE III--Testing Program and Analytical Program Validation - (9). Execute the testing program according to the approved work plan. (10). Finalize the analytical program validation based on testing results. (11). Prepare Interim Report No. 3 that documents Tasks 9 and 10 of Phase III no later than 9 months after approval of Phase II. PHASE IV--Guidelines Development and Proposed AASHTO LRFD Specifications - (12). Based on the analytical and testing investigations, develop guidelines and proposed specification and commentary language for AASHTO LRFD Bridge Specifications supported with examples. (13). Identify the potential economic impact of the proposed specifications.(14). Prepare Interim Report No. 4 that documents Tasks 12 and 13 of Phase IV no later than 3 months after approval of Phase III. PHASE V--Final Products - (15). Update proposed guidelines and AASHTO LRFD Bridge Specifications after consideration of review comments and prepare ballot items for AASHTO Highway Subcommittee on Bridges and Structures consideration. (16). Prepare a final report that documents the entire research effort.


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  • Status: Active
  • Funding: $400000.00
  • Contract Numbers:

    Project 12-96

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Dekelbab, Waseem

  • Performing Organizations:

    George Washington University

    2121 Eye Street, NW
    Washington, DC  United States  20052
  • Principal Investigators:

    Badie, Sameh

  • Start Date: 20130701
  • Expected Completion Date: 0
  • Actual Completion Date: 20160630
  • Source Data: RiP Project 38349

Subject/Index Terms

Filing Info

  • Accession Number: 01547519
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 12-96
  • Files: TRB, RiP
  • Created Date: Dec 11 2014 1:00AM