Upgrading and Protecting Steel Columns using UHPC

The proposed research project aims to investigate the application of Ultra-High Performance Concrete (UHPC) for the retrofitting and upgrading of steel columns. Steel columns, while providing high tensile strength and ductility, are prone to deterioration from corrosion, fatigue, and buckling under extreme loading conditions. This vulnerability necessitates innovative solutions to enhance their performance and durability. Further, wrapping steel columns with UHPC will significantly reduce noise pollution. As an example, the “L” metro system in Chicago consists of many steel columns that contain corrosion and very noisy during the passage of trains. Wrapping these steel columns with UHPC will help addressing corrosion issue and significantly reducing the noise pollution problem. Experimental studies and analytical modeling, including finite element analysis, will be conducted to investigate the behavior of UHPC-encased steel columns under seismic loads. The research is expected to result in design guidelines for the application of UHPC in upgrading steel columns, considering a variety of shapes, sizes, and loading scenarios.

Language

• English

Project

• Status: Active
• Funding: $105000
• Contract Numbers:

  69A3552348322

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590

  Innovative Bridge Technologies/Accelerated Bridge Construction University Transportation Center (IBT/ABC-UTC)

  Florida International University
  Miami, FL  United States 
• Performing Organizations:

  Florida International University

  Civil and Environmental Engineering
  10555 W. Flagler Street, EC 3680
  Miami, FL  United States  33174
• Principal Investigators:

  Azizinamini, Atorod

• Start Date: 20240101
• Expected Completion Date: 20250630
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers

Subject/Index Terms

• TRT Terms: Columns; Corrosion resistance; Earthquake resistant design; Finite element method; Steel bridges; Ultra high performance concrete
• Subject Areas: Bridges and other structures; Design; Highways; Materials;

Filing Info

• Accession Number: 01924830
• Record Type: Research project
• Source Agency: Accelerated Bridge Construction University Transportation Center (ABC-UTC)
• Contract Numbers: 69A3552348322
• Files: UTC, RIP
• Created Date: Jul 21 2024 2:46PM