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United States Department of Transportation United States Department of Transportation
OFFICE OF RESEARCH, DEVELOPMENT, AND TECHNOLOGY AT THE TURNER-FAIRBANK HIGHWAY RESEARCH CENTER

Abutment Interface Experiments for Integrated Approaches

Project Information

Project ID:
FHWA-PROJ-12-0004
Project Abstract:

The inservice performance of many bridges built on the Geosynthetic Reinforced Soil (GRS) Integrated Bridge System (IBS) indicate the superstructure and approach fill coexist to maintain a smooth bump-free transition without the need to include a traditional approach slab or special pavement system. This project will investigate the interaction between the end of the bridge and a GRS integrated approach. The project will involve a series of laboratory experiments and computer modeling to simulate thermal bridge cycles and measure the resulting passive earth pressure against the GRS integrated approach in an attempt to understand the mechanics of the IBS. In addition, the results of this research can be applied beyond an IBS to integral abutments.

Goals

The key project objectives are:  

(1) Define the mechanics of passive earth pressure against a geosynthetic reinforced soil (GRS) integrated approach.

(2) Define the interaction between the superstructure and abutment.

(3) Determine how the thermally induced force from the approach backfill affects the superstructure.

(4) Develop a computer model to simulate the GRS integrated approach for different bridge configurations

(5) Apply the results of this work to the design of bridges with various abutment types (e.g. GRS, integral, etc.). 

Research HUB ID:
7584
Project Status:
Completed
Project Funding Amount (Contract Award Amount):
$0.00
Start Date:
End Date:
Public Access Plan:
No
Laboratory:
  • Geotechnical Laboratory
FHWA Program Area:
  • Infrastructure
FHWA AMRP Program:
  • Geotechnical and Hydraulics

Contact Information

Team:
Bridge Engineering Team
Office:
Office of Infrastructure Research and Development
Office Code:
HRDI-40

Management Organizations

Sponsor Organization

Organization Role:
Sponsor Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Lead

Managing Organization

Organization Role:
Project Managing Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Contact

Performing Organization

Organization Role:
Performing Organization
Organization:
Federal Highway Administration: Office of Research, Development, and Technology - Office of Infrastructure Research and Development
Contact Role:
Project Contact