Field Demonstration-Instrumentation and monitoring of Accelerated Repair Using UHPC Shell

Recently Florida International University (FIU) has developed repair techniques that are capable of repairing damaged bridge elements using Ultra High Performance Concrete (UHPC). Technique is applicable to both flexural and axially dominated bridge elements. U.S. transportation infrastructure consists of more than 60,000 miles of coastal roadways. Significant number of bridges located along these coastal roadways are subject to harsh environment resulting in corrosion and other damages. In addition to bridges located in the coastal areas, other bridges located in-land, also contain damages that need development of accelerated repair techniques. Several methods are currently used by bridge owners for repairing damaged bridge elements that include, wrapping damaged portions of bridge elements with Fiber Reinforced Polymers (FRP), steel jacketing and wrapping using conventional concrete. The Accelerated UHPC shell retrofit technique developed at FIU has many advantages over the existing retrofit techniques: A) UHPC is a very durable material with a very low permeability; B) the high compressive and tensile strength of UHPC strengthen the damaged bridge elements, in fact, the retrofit technique should be referred to as upgrade technique, since the end product could be stronger than even original bridge elements; and C) the properties of UHPC allow tension development of steel reinforcement over a short length, in case some of the reinforcement in the retrofitted areas needs replacement.

• Record URL:
  https://abc-utc.fiu.edu/research-projects/fiu-research-projects/

Language

• English

Project

• Status: Completed
• Contract Numbers:

  69A3551747121

• Sponsor Organizations:

  Accelerated Bridge Construction University Transportation Center (ABC-UTC)

  Florida International University
  10555 W. Flagler Street
  Miami, FL  United States  33174

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Accelerated Bridge Construction University Transportation Center (ABC-UTC)

  Florida International University
  10555 W. Flagler Street
  Miami, FL  United States  33174

  Department of Transportation

  Office of the Secretary
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Project Managers:

  Azizinamini, Atorod

• Performing Organizations:

  Florida International University

  10555 W. Flagler Street
  Room 3602
  Miami, FL  United States  33172

  Accelerated Bridge Construction University Transportation Center (ABC-UTC)

  Florida International University
  10555 W. Flagler Street
  Miami, FL  United States  33174
• Principal Investigators:

  Azizinamini, Atorod

  Lau, Kingsley

• Start Date: 20180101
• Expected Completion Date: 20201231
• Actual Completion Date: 20210401
• USDOT Program: University Transportation Centers

Subject/Index Terms

• TRT Terms: Bridges; Instrumentation; Repairing; Retrofitting; Structural health monitoring; Ultra high performance concrete
• Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 01681640
• Record Type: Research project
• Source Agency: Accelerated Bridge Construction University Transportation Center (ABC-UTC)
• Contract Numbers: 69A3551747121
• Files: UTC, RIP
• Created Date: Sep 22 2018 2:05PM