Shake Table Testing of Precast UHPC Bridge Column with ABC Seismic Connection

It is a well-known fact that ultra high performance concrete (UHPC) is one of the most commonly used or desired solutions for accelerated bridge construction (ABC) connections nowadays. With more vendors entering the US market and large initiatives for developing non-proprietary UHPC mixes (e.g. Accelerated Bridge Construction University Transportation Center (ABC-UTC) or PCI initiatives), the applications and use of UHPC for ABC will only continue to grow and increase. Some of the emerging applications include full structural members such as bridge girders and full columns. The Federal Highway Administration (FHWA) is working on mega-girders that would incorporate UHPC and large prestressing strands to reach spans up to 300 ft. Meanwhile, at University of Nevada, Reno (UNR), several projects have focused on full UHPC columns but mostly under axial loading and only few explored seismic columns. Seismic UHPC columns could provide practical solutions for important bridges in high seismic zones where low-damage designs are desired. ABC seismic connections have been also emerged but yet to be coupled with full UHPC columns. Thus, this project will fill a knowledge gap and investigate the dynamic behavior of full UHPC columns with ABC seismic connections. One or two large-scale columns will be tested at one of the shake tables at UNR under earthquake excitations. The test specimen(s) will consider a full precast UHPC column connected to a conventional reinforced concrete footing using a seismic ABC connections. Two types of connections will be explored to select the most promising one and use for the UHPC column specimens. These are the socket connection and UHPC-filled grouted ducts.

• Record URL:
  https://abc-utc.fiu.edu/research-projects/unr-research-projects/shake-table-testing-of-precast-uhpc-bridge-column-with-abc-seismic-connection/

Language

• English

Project

• Status: Active
• Funding: $97000
• 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
• Performing Organizations:

  University of Nevada, Reno

  College of Engineering
  Reno, NV  United States  89557
• Principal Investigators:

  Moustafa, Mohamed

• Start Date: 20220701
• Expected Completion Date: 0
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers

Subject/Index Terms

• TRT Terms: Bridge construction; Columns; Earthquake resistant design; Shaking table tests; Structural connection; Ultra high performance concrete
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Materials;

Filing Info

• Accession Number: 01889300
• Record Type: Research project
• Source Agency: Accelerated Bridge Construction University Transportation Center (ABC-UTC)
• Contract Numbers: 69A3551747121
• Files: UTC, RIP
• Created Date: Jul 30 2023 8:58PM