Rapid Retrofitting Techniques for Induced Earthquakes

Since 2009, there has been a dramatic increase in the number of earthquakes in the central United States. States such as Oklahoma, Kansas, Arkansas, and Texas have not historically experienced earthquakes at the rate currently observed, nor of this magnitude. Studies have linked the increased rate of seismic activity since 2009 to wastewater injection in disposal wells. These induced earthquakes are not limited to the U.S., but are also experienced in other countries including Canada, China, and the United Kingdom. The seismicity of places such as California and the New Madrid seismic zone is well documented and generally thought of when discussing seismic hazards in the contiguous U.S., yet the cumulative moment in Oklahoma over the last two years (1 January 2015 to 31 December 2016) exceeds that of southern California and the New Madrid seismic zones. While collapse is unlikely for the induced earthquakes currently observed, the cumulative effects of a large number of small earthquakes on bridges are not fully understood. These cumulative effects compounded with the occasional moderate earthquake (M5.0 and larger) may lead to damage requiring rapid repairs to avoid acute traffic control issues at the affected bridge sites. To reduce impacts to the driving public, accelerated bridge construction (ABC) techniques have been developed over recent years, but have primarily focused on rapidly constructing new or replacement structures. Another benefit derived from these ABC methods is rapid post-earthquake repair of damaged structures. Post-earthquake accelerated column repair/replacements has focused solely on moderate-to-high seismic zones. The need for additional analysis, new techniques, and associated specifications is also critical for low-to-moderate seismic zones affected by induced earthquakes. This project addresses the current knowledge gap on the effects of low-level frequent seismic events on bridges, as well as ABC methods to repair/retrofit damaged bridges.

Language

  • English

Project

  • Status: Active
  • Funding: $76155
  • 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
  • Project Managers:

    Azizinamini, Atorod

  • Performing Organizations:

    University of Oklahoma, Norman

    School of Civil Engineering and Environmental Science
    202 West Boyd Street, Room 334
    Norman, OK  United States  73019

    Accelerated Bridge Construction University Transportation Center (ABC-UTC)

    Florida International University
    10555 W. Flagler Street
    Miami, FL  United States  33174
  • Principal Investigators:

    Harvey Jr., P. Scott

    Muraleetharan, Kanthasamy

  • Start Date: 20180101
  • Expected Completion Date: 20190731
  • Actual Completion Date: 0
  • USDOT Program: University Transportation Centers

Subject/Index Terms

Filing Info

  • Accession Number: 01711092
  • Record Type: Research project
  • Source Agency: Accelerated Bridge Construction University Transportation Center (ABC-UTC)
  • Contract Numbers: 69A3551747121
  • Files: UTC, RiP
  • Created Date: Sep 21 2018 4:47PM