Numerical Investigation of the Impact of Vertical Ground Motions on ABC Girder-to-Cap Connections in the Near-Field

State-of-the-art research on the impact of vertical motion effects on ordinary highway bridges and evidence from past earthquakes have revealed the potential for a significant increase of the demands at the girder-to-cap face. While this is not of major concern for ordinary bridges whose moment capacity at the face of the bent cap is typically adequate to resist the increased demands due to vertical effects, the impact of vertical ground motions on accelerated bridge construction (ABC) connections is yet to be thoroughly investigated. Very few studies have been carried out to characterize the shear and moment capacity of girder-to-cap connections. Experimental works have primarily looked at the seismic response of precast concrete girder-to-cap connections subject to horizontal excitation, while numerical studies have utilized only conventional simplified approaches for vertical ground motions estimates and modeling. This project will perform a comprehensive series of numerical simulations to assess the seismic performance of bridge systems that incorporate typical ABC girder-to-cap connections. This will be accomplished by utilizing validated 3-D arrays of near-field motions generated from physics-based wave propagation models.

• Record URL:
  https://abc-utc.fiu.edu/research-projects/isu-research-projects/numerical-investigation-of-the-impact-of-vertical-ground-motions-on-abc-girder-to-cap-connections-in-the-near-field/

Language

• English

Project

• Status: Active
• Funding: $48000
• 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:

  Petrone, Floriana

• Start Date: 20220501
• Expected Completion Date: 0
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers

Subject/Index Terms

• TRT Terms: Accelerated bridge construction; Bents; Girders; Highway bridges; Numerical analysis; Seismicity; Structural connection
• Subject Areas: Bridges and other structures; Construction; Design; Highways;

Filing Info

• Accession Number: 01889270
• Record Type: Research project
• Source Agency: Accelerated Bridge Construction University Transportation Center (ABC-UTC)
• Contract Numbers: 69A3551747121
• Files: UTC, RIP
• Created Date: Jul 28 2023 9:05AM