IMPLEMENTATION OF THE ANALYTICAL CAPABILITIES REQUIRED FOR THE ASEISMIC DESIGN OF BRIDGES

The design of a highway bridge located in a region of high seismic risk must include a detailed and accurate analysis of the bridge to determine its maximum anticipated seismic loads. To comply with newly developed code requirements and to ensure the utmost confidence in the predicted response, the seismic analysis should be performed by using the appropriate analytical procedures. The recently developed computer program Seismic Analysis of Bridges (SEISAB) used to conduct seismic analyses that comply with both the current AASHTO specifications and the Applied Technology Council seismic design guidelines is described. In addition, a description is given of the single-mode spectral method developed for the new guidelines for a specific category of bridges with low to moderate seismic vulnerability. An example is included to demonstrate the applicability of this method to a two-span bridge. A second example is included to illustrate how SEISAB-I was used to conduct a response spectrum dynamic analysis on a six-span curved bridge. Included also is a description of the nonlinear dynamic analysis capabilities to be included in the next version, SEISAB-II. The implementation of SEISAB-I through workshops funded by the National Science Foundation and the acceptance of the program based on trainee evaluations are also briefly described.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1984/950/950v1-016.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=IMPLEMENTATION+OF+THE+ANALYTICAL+CAPABILITIES+REQUIRED+FOR+THE+ASEISMIC+DESIGN+OF+BRIDGES&author=R.+Imbsen&author=J.+Lea&publication_year=1984
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/3090036593
• Supplemental Notes:
  • This paper appeared in Transportation Research Record Number 950, Volume 1, Second Bridge Engineering Conference conducted by the Transportation Research Board and the Federal Highway Administration, September 24-26, 1984. Publication of this paper sponsored by Committee on General Structures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Imbsen, Roy A
  • Lea, J
• Conference:
  • Bridge Engineering Conference, 2nd, 1984, Washington, DC, USA
• Publication Date: 1984

Media Info

• Media Type: Print
• Features: Figures; Maps; References; Tables;
• Pagination: pp 103-110
• Monograph Title: Second bridge engineering conference. volumes 1 and 2
• Serial:
  • Transportation Research Record
  • Issue Number: 950
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bridge design; Bridges; Building codes; Computer programs; Curved bridges; Dynamic tests; Earthquake resistant design; Earthquake resistant structures; Implementation; Specifications; Spectrum analysis; Structural analysis; Structural design
• Uncontrolled Terms: Dynamic analysis
• Subject Areas: Bridges and other structures; Design; Highways; Law; Research; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00390853
• Record Type: Publication
• ISBN: 03090036593
• Files: TRIS, TRB
• Created Date: Dec 30 1984 12:00AM