Time-dependent Durability of Composite-Repaired Bridge Columns

This proposal presents a comprehensive research program concerning the durability of field-assembled columns with accelerated bridge construction (ABC), including post-tensioned columns, when subjected to synergistic distress resulting from corrosion and seismic loadings. Although ABC is an emerging trend in the United States due to a number of advantages (e.g., minimal disruption to traffic and quality control), there is a lack of knowledge on the performance of corroded ABC columns and connection elements in earthquake-prone zones. Accordingly, no design provisions are available in published specifications. To address such a practical need, technical investigations are conducted through large-scale laboratory testing in conjunction with advanced analytical modeling. Of interest are the mechanisms of corrosion initiation and progression in ABC columns with and without posttensioning, hysteretic responses, ductility, structural vulnerability, failure probability, and the formation of plastic hinges. Upon elucidating the behavior of the columns, cost-effective retrofit strategies are established using non-corrosive carbon fiber reinforced polymer (CFRP) composites to extend the longevity of the deteriorated ABC systems. All findings will be integrated to develop implementation guidelines. Significant synergies are expected through the collaboration of the University of Utah and the University of Colorado Denver in terms of a scientific understanding of the subject area, educational activities, and technology transfer. Three engineers from the state Departments of Transportation (DOTs) participate in the research program to help generate practical outcomes, including two industry partners, which immediately benefit the infrastructure community. Conforming to the TriDurLE thrust areas, the project brings to light the state of the art of ABC technologies and provides opportunities to students from underrepresented groups.

• Record URL:
  https://tridurle.wsu.edu/time-dependent-durability-of-composite-repaired-bridge-columns/

Language

• English

Project

• Status: Active
• Funding: $150000
• Contract Numbers:

  69A3551947137

• Sponsor Organizations:

  Transportation Infrastructure Durability & Life Extension

  Washington State University
  Civil & Environmental Engineering
  Pullman, Washington  United States  99164

  Office of the Assistant Secretary for Research and Technology

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

  Transportation Infrastructure Durability & Life Extension

  Washington State University
  Civil & Environmental Engineering
  Pullman, Washington  United States  99164
• Project Managers:

  Kline, Robin

• Performing Organizations:

  University of Colorado Denver

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

  Kim, Yail

• Start Date: 20221001
• Expected Completion Date: 20231231
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers
• Subprogram: Transportation Infrastructure Durability and Life Extension

Subject/Index Terms

• TRT Terms: Accelerated bridge construction; Bridge engineering; Carbon fibers; Columns; Composite construction; Corrosion; Repairing
• Subject Areas: Bridges and other structures; Construction; Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 01890849
• Record Type: Research project
• Source Agency: National Center for Transportation Infrastructure Durability and Life-Extension
• Contract Numbers: 69A3551947137
• Files: UTC, RIP
• Created Date: Aug 23 2023 8:59PM