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SEISMIC ANALYSIS AND RETROFITTING PRIORITIES FOR HIGHWAY BRIDGES ON EARTHQUAKE PRIORITY ROUTE SYSTEM IN WESTERN KENTUCKY. INTERIM REPORT

Concern has grown in recent years over the seismic activity of the New Madrid seismic zone in Western Kentucky. Bridges, as the vital links of the priority route system, need to be prevented from sever earthquake damages in order to keep the routes passible after an earthquake has occurred. In this report, seismic rating and seismic analysis were performed for each of 276 bridges on the priority route system. A priority order of retrofitting for the bridges was listed according to their vulnerability to the earthquake. At least 111 bridges need retrofitting based on the results of seismic analyses. The number of bridges needing to be retrofitted was determined for different confidence levels. The methods of estimating span-loss type of bridge collapse due to earthquake induced abutment sliding and evaluating bridge damages related to earthquake induced vibration of pier or bent were developed. ATC analysis was also conducted for each bridge.

  • Record URL:
  • Corporate Authors:

    University of Kentucky, Lexington

    Kentucky Transportation Center
    College of Engineering, 176 Raymond Building
    Lexington, KY  United States  40506-0281

    Kentucky Transportation Cabinet

    200 Mero Street
    Frankfort, KY  United States  40622

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Ouyang, Y
    • Allen, D L
    • Drnevich, V P
    • Fleckenstein, L J
  • Publication Date: 1990-4

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 160 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00608501
  • Record Type: Publication
  • Report/Paper Numbers: KTC-90-7
  • Contract Numbers: KYHPR-87-116
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: May 31 1991 12:00AM