Lateral Loading of Unreinforced Rigid Elements and Basal Stability of Column-Supported Systems (3.12)

The use of rigid column-support to stabilize fill embankments and MSE walls continues to grow in popularity, especially among DOTs and transportation agencies for roadway, railway, and bridge applications because of its distinct advantage in accelerating construction in fill scenarios. However, perimeter columns may be subjected to appreciable lateral loading and excessive tensile stressing in the concrete that may lead to a cessation of the load transfer mechanisms (e.g. arching) and subsequent basal instability. The objectives of this project are to (i) understand the conditions (e.g. fill scenario, subgrade materials, area replacement ratio) that influence lateral loads and bending in exterior columns and (ii) generate design guidance regarding the necessity of reinforcement in perimeter elements subject to lateral loading near the perimeter of slopes, embankments, and MSE walls.

• Record URL:
  https://tidc.umaine.edu/tidc_project/3-12-umaine/

Language

• English

Project

• Status: Active
• Funding: $33380
• Contract Numbers:

  69A3551847101

• Sponsor Organizations:

  Deep Foundations Institute

  326 Lafayette Avenue
  Hawthorne, New Jersey  United States  07506

  Transportation Infrastructure Durability Center

  University of Maine
  Orono, ME  United States  04469

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590

  Jacobs Engineering

  Herndon, Virginia  United States 
• Managing Organizations:

  Deep Foundations Institute

  326 Lafayette Avenue
  Hawthorne, New Jersey  United States  07506

  University of Maine, Orono

  Department of Civil and Environmental Engineering.
  5717 Corbett Hall
  Orono, ME  United States  04469-5711

  Transportation Infrastructure Durability Center

  University of Maine
  Orono, ME  United States  04469
• Project Managers:

  Dunn, Denise

• Performing Organizations:

  Transportation Infrastructure Durability Center

  University of Maine
  Orono, ME  United States  04469

  University of Maine, Orono

  Department of Civil and Environmental Engineering.
  5717 Corbett Hall
  Orono, ME  United States  04469-5711
• Principal Investigators:

  Gallant, Aaron

• Start Date: 20190601
• Expected Completion Date: 20230630
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Bending; Columns; Embankments and retaining walls; Guidelines; Reinforcement (Engineering); Slopes
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways; Railroads;

Filing Info

• Accession Number: 01730654
• Record Type: Research project
• Source Agency: Transportation Infrastructure Durability Center
• Contract Numbers: 69A3551847101
• Files: UTC, RIP
• Created Date: Feb 7 2020 7:32PM