Composite-based Rehabilitation of Constructed Bridge Girders with Grooved Geometrics

The concise literature review indicates that the integrity of the composite-substrate interface (specifically, carbon fiber reinforced polymer (CFRP)-concrete interface) is a critical component controlling the performance of repair/strengthening systems. Although the several proposed approaches appear to be applicable, there still is a dearth of research to fundamentally reframe the interfacial characteristics of CFRP composites bonded to a concrete substrate, so that the occurrence of premature debonding can be alleviated. This research explores a novel bonding scheme by creating grooves along the substrate and filled by an epoxy adhesive, which are expected to reduce interfacial shear stresses between the CFRP and concrete. The feasibility of the proposed idea will be experimentally verified and its performance will be comparatively assessed against existing debonding mitigation methods. A theoretical study will be conducted to complement experimental findings, including reliability-based modeling, fuzzy logic, and statistical characterization.

Language

  • English

Project

  • Status: Active
  • Funding: $80000
  • Contract Numbers:

    69A3551747108

  • Sponsor Organizations:

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Project Managers:

    Kline, Robin

  • Performing Organizations:

    University of Colorado Denver

    Department of Civil Engineering
    1200 Larimer Street, Room 3037
    Denver, Colorado  United States  80217
  • Principal Investigators:

    Kim, Yail Jimmy

  • Start Date: 20171211
  • Expected Completion Date: 20220731
  • Actual Completion Date: 0
  • Source Data: MPC-554

Subject/Index Terms

Filing Info

  • Accession Number: 01656112
  • Record Type: Research project
  • Source Agency: Mountain-Plains Consortium
  • Contract Numbers: 69A3551747108
  • Files: UTC, RiP
  • Created Date: Jan 2 2018 1:08PM