Validation and Calibration of Finite Element of Forces in Wingwalls

The Ohio Department of Transportation (ODO)T has been designing and installing bridges using abutments and wingwalls with turnback support using drilled shafts placed in bedrock, as recommended in the 2007 ODOT Bridge Design Manual and 2012 American Association of State Highway and transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Specifications. This construction technique is more economical and adapts well to site conditions in Ohio. The design has been simulated using 3-dimensional finite element models [e.g. E.L. Robinson Engineering, 2013 for ALL-75-0703 Bridge], but there is insufficient data to validate these models. The models indicate that the dominant force is uplift from the drilled shafts. To validate the finite element models and ensure the design concept is safe, sound, and economical, it is proposed that a new bridge in Ohio be instrumented to obtain the data. The instrumentation would be designed to measure the amount of load and the stress (critical stress) transferred from the abutment to the wingwall at the interface and the forces in the drilled shafts, whether caused by loads or by environmental factors such as temperature changes or soil moisture. The research will benefit ODOT in understanding the behavior of the drilled shafts supporting abutments during construction and service life. The research will help in understanding the load mechanism and help improve the design methodology for similar type of substructures in addition to some design guides to be included in the ODOT Bridge Design Manual.

    Language

    • English

    Project

    • Status: Active
    • Funding: $210887.00
    • Contract Numbers:

      26869

      135085

    • Sponsor Organizations:

      E.L. Robinson Engineering

      ,    
    • Project Managers:

      Taliaferro, Stephen

    • Performing Organizations:

      Ohio University, Athens

      Athens, OH  United States  45701
    • Principal Investigators:

      Nusairat, Jamal

    • Start Date: 20151101
    • Expected Completion Date: 0
    • Actual Completion Date: 20180301
    • Source Data: RiP Project 40183

    Subject/Index Terms

    Filing Info

    • Accession Number: 01572137
    • Record Type: Research project
    • Source Agency: Ohio Department of Transportation
    • Contract Numbers: 26869, 135085
    • Files: RiP, STATEDOT
    • Created Date: Aug 1 2015 1:30AM