Integral Abutments on Shallow Ledge--Phase 2

Whenever appropriate the Maine Department of Transportation uses integral abutment bridge types due to their cost effectiveness versus conventional abutment types. Integral abutments eliminate the need for costly and maintenance-intensive open expansion joints. Also, expensive cofferdam construction and work in the water is minimized. Current design practices limit integral abutment usage to subsurface conditions with greater than ten feet to ledge. Design of these abutments on shallow ledge could provide a more economical bridge structure. It is anticipated that up to six structures per BTIP could be designed in this manner if research is successful. Phase 1 developed laboratory models such that integral abutments and proper details could be evaluated for shallow ledge conditions. Phase 2 will instrument and evaluate an integral abutment constructed on shallow ledge.

Language

• English

Project

• Status: Completed
• Contract Numbers:

  PIN 9674.05

• Sponsor Organizations:

  Maine Department of Transportation

  Research Division, Child Street, 16 State House Station
  Augusta, ME  United States  04333-0016
• Performing Organizations:

  Maine Department of Transportation

  Research Division, Child Street, 16 State House Station
  Augusta, ME  United States  04333-0016
• Start Date: 20020101
• Expected Completion Date: 0
• Actual Completion Date: 0
• Source Data: RiP Project 9289

Subject/Index Terms

• TRT Terms: Abutments; Bridge abutments; Bridge design; Cost effectiveness; Research projects; Structures; Substructures
• Geographic Terms: Maine
• Subject Areas: Administration and Management; Bridges and other structures; Finance; Research;

Filing Info

• Accession Number: 01458888
• Record Type: Research project
• Source Agency: Maine Department of Transportation
• Contract Numbers: PIN 9674.05
• Files: RIP, STATEDOT
• Created Date: Jan 3 2013 12:52PM