Seismic Responses of Highway Bridges Subjected to Near-Fault Acceleration Pulses Excitation

This paper describes how near-fault ground motion with prominent acceleration pulses has recently been studied by some researchers. Such ground motions often exhibit special pulse-like characteristics. Peak ground motions (PGA, PGV and PGD) all occur in a few correlated motion cycles; and the acceleration response spectrum of the record is almost the same as that of the few extracted pulses. In comparison to the ground velocity pulses, the impact of ground acceleration pulses is mainly targeted to structures of short fundamental period (less than 1.5 seconds). In this paper, the authors evaluate the responses of a typical highway bridge under the excitation of ground acceleration pulses. The box girder continuous span highway bridge has both fundamental longitudinal and transverse modes of less than 15 seconds. The evaluation provides some comparative results of the bridge deck and pier response levels relative to those predicated by standard design spectrum.

• Corporate Authors:

  Multidisciplinary Center for Earthquake Engineering Research

  State University of New York, 107 Red Jacket Quadrangle, P.O. Box 610025
  Buffalo, NY  United States  14261-0025

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Tong, Mai
  • Lee, George C
  • Xu, Yan
• Conference:
  • Fourth International Workshop on Seismic Design and Retrofit of Transportation Facilities
  • Location: San Francisco CA, United States
  • Date: 2006-3-13 to 2006-3-14
• Publication Date: 2006-4-3

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: 12p
• Monograph Title: Proceedings of the Fourth International Workshop on Seismic Design and Retrofit of Transportation Facilities

Subject/Index Terms

• TRT Terms: Acceleration (Mechanics); Bridge decks; Bridge piers; Earthquake resistant design; Excitation; Fault monitoring; Faults; Highway bridges; Seismicity
• Uncontrolled Terms: Peak ground acceleration
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01079381
• Record Type: Publication
• Files: TRIS, USDOT
• Created Date: Oct 22 2007 10:14AM