Design of CFST Components and Connections for Transportation Structures: Course Module

Over the past decade, significant research has been conducted on concrete-filled steel tubes (CFSTs) and their connections for use in regions of low to high seismicity. CFSTs have application to the superstructure (piers) and substructure (deep foundations). Both CFST components and connections have been thoroughly evaluated using experimental and numerical (high-resolution, finite element modeling) research approaches. In addition, system-level evaluations have been conducted. The results from the work include new design expressions that have been implemented in AASHTO as well as state department of transportation design manuals. Advantages of the system included: (i) larger strength and stiffness for a given diameter in comparison with conventional RC construction, (ii) facilitation of accelerated bridge construction, (iii) improved constructability, (iv) use of environmentally-friendly (low cement) concrete for the concrete fill, and (v) improved seismic performance through damage mitigation. The course module will provide an overview of the research conducted, design expressions for the CFST components and connections, nonlinear modeling techniques, system-level response to vertical and lateral demands including earthquake and tsunami loading, and design examples.

• Record URL:
  https://abc-utc.fiu.edu/research-projects/uw-research-projects/design-of-cfst-components-and-connections-for-transportation-structures-course-module/

Language

• English

Project

• Status: Active
• Funding: $20000
• 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
• Performing Organizations:

  University of Washington, Seattle

  1107 NE 45th Street, Suite 535
  Seattle, WA  United States  98105
• Principal Investigators:

  Dawn, E

• Start Date: 20181201
• Expected Completion Date: 20230804
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Bridge construction; Design load; Earthquake resistant design; Education and training; Steel structures; Structural connection; Tsunamis; Tubing
• Subject Areas: Bridges and other structures; Construction; Design; Education and Training; Highways; Materials;

Filing Info

• Accession Number: 01700434
• Record Type: Research project
• Source Agency: Accelerated Bridge Construction University Transportation Center (ABC-UTC)
• Contract Numbers: 69A3551747121
• Files: UTC, RIP
• Created Date: Mar 30 2019 2:05PM