SPR-4844: Analysis of DownDrag Loads Using the Neutral Plan Method

INDOT developed a preliminary procedure internally to locate the neutral plane. To assess the validity of its procedure, INDOT has identified a construction project on US 31 in Marshall County to instrument and monitor..The research tasks of the project include analyzing the data collected over time from the strain gauges installed on the test pile, performing a few numerical simulations of the test pile under field conditions to help with accurate location of the neutral plane, assessing INDOT’s procedure for location of the neutral considering the data collected in this construction project and the result of the simulations, suggesting modifications to INDOT’s procedure as needed, based on the data analyses, and proposing guidelines for future projects in which downdrag must be considered.


    • English


    • Status: Active
    • Funding: $228713
    • Contract Numbers:


    • Sponsor Organizations:

      Purdue University/Indiana Department of Transportation JHRP

      Purdue University
      1284 Civil Engineering Building, Room 4154
      West Lafayette, IN  United States  47907-1284
    • Principal Investigators:

      Prezzi, Monica

      Salgado, Rodrigo

    • Start Date: 20240430
    • Expected Completion Date: 20260831
    • Actual Completion Date: 0

    Subject/Index Terms

    Filing Info

    • Accession Number: 01890963
    • Record Type: Research project
    • Source Agency: Indiana Department of Transportation
    • Contract Numbers: SPR-4844
    • Files: RIP, STATEDOT
    • Created Date: Aug 24 2023 3:20PM