Defining the Boundary Conditions for Composite Behavior of Geosynthetic Reinforced Soil (GRS) Structures

NCHRP 24-41 Defining the Boundary Conditions for Composite Behavior of Geosynthetic Reinforced Soil (GRS) Structures research objectives were to determine the boundary conditions for composite behavior of GRS abutments as a function of, but not limited to, vertical spacing of soil reinforcements, reinforcement type (geotextiles and geogrids) and characteristics, and backfill properties. The research resulted in development of proposed revisions to the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) specifications. The final report, NCHRP 24-41 Defining the Boundary Conditions for Composite Behavior of Geosynthetic Reinforced Soil (GRS), Appendix A: SI Conversion Factors; Appendix B: Additional Data from Field Component; and Executive Summary NCHRP 24-41 are available. Also available, NCHRP Web-Only Document 260, Proposed Refinements to Design Procedures for Geosynthetic Reinforced Soil (GRS) Structures in AASHTO LRFD Bridge Design Specifications, an adaptation of Chapter 8 of the full report which discusses proposed design refinements for Section 11.10 of the AASHTO LRFD Bridge Design Specifications.

• Record URL:
  http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=3670

Language

• English

Project

• Status: Completed
• Funding: $500000
• Contract Numbers:

  Project 24-41

• 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:

  Reynaud, David

• Performing Organizations:

  University of Texas, Austin

  Austin, TX  United States  78712
• Principal Investigators:

  Zornberg, Jorge

• Start Date: 20140901
• Expected Completion Date: 20181031
• Actual Completion Date: 20181031
• Source Data: RiP Project 37694

Subject/Index Terms

• TRT Terms: Backfill soils; Bridge abutments; Deformation; Geosynthetics; Load and resistance factor design; Mechanically stabilized earth; Retaining walls; Tensile properties
• Subject Areas: Bridges and other structures; Geotechnology; Highways;

Filing Info

• Accession Number: 01543537
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 24-41
• Files: TRB, RIP
• Created Date: Nov 18 2014 1:01AM