Bridge Column Footing Performance and Seismic Retrofit Evaluation Considering Soil-structure Interaction

The objectives of this research are to improve the experimental basis for assessing bridge column-footing performance with and without retrofits subject to SSI and to provide clear design guidance for the evaluation of retrofit/replacement alternatives, with full consideration of the moment capacity at the top of the columns as well as the evolution of the force flow within the spread footing. The proposed experiments will be coupled with numerical modeling to extend the experimental work, inform design guidance, and show the effect of various foundation soil conditions. Although the focus of this work is on spread footings, the outcomes may be applicable to retrofits of timber pile-supported substructures, if the pile caps can be retrofitted similar to spread footings under the assumption that deteriorated timber piles make the pile cap act like a spread footing under an extreme seismic event. The development and implementation of these guidelines in the BDDM and GDM will allow for improved, less conservative design recommendations and the potential for improved cost savings as Oregon Department of Transportation (ODOT) improves the seismic resilience of its transportation network.

Language

• English

Project

• Status: Active
• Funding: $470000
• Contract Numbers:

  SPR 830

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Managing Organizations:

  Oregon Department of Transportation

  555 13th Street NE
  Salem, OR  United States  97301
• Project Managers:

  Mabey, Matthew

• Performing Organizations:

  Oregon State University, Corvallis

  School of Civil and Construction Engineering
  101 Kearney Hall
  Corvallis, OR  United States  97331-2302
• Principal Investigators:

  Stuedlein, Armin

• Start Date: 20190930
• Expected Completion Date: 20220831
• Actual Completion Date: 0
• USDOT Program: Transportation, Planning, Research, and Development

Subject/Index Terms

• TRT Terms: Bridge design; Bridge foundations; Bridges; Columns; Earthquake resistant design; Footings; Guidelines; Retrofitting; Soil structure interaction
• Identifier Terms: Oregon Department of Transportation
• Subject Areas: Bridges and other structures; Design; Geotechnology; Highways;

Filing Info

• Accession Number: 01724980
• Record Type: Research project
• Source Agency: Oregon Department of Transportation
• Contract Numbers: SPR 830
• Files: RIP, STATEDOT
• Created Date: Dec 12 2019 12:20PM