Performance-Based Seismic Retrofit Design of a Long-Span Truss Bridge—Minato Bridge—Using New Control Technologies

This paper describes performance-based seismic retrofit design for a long-span truss bridge, Minato Bridge in Osaka, Japan, against maximum credible ground motion, using new response control technologies. The target performance is the early reopening of the bridge after a severe earthquake; the main members that support gravity load should remain in the elastic region while sub-members may reach the inelastic region only within a moderate range. To achieve the performance criteria, new response control technologies are adopted: seismic isolation of floor decks for the longitudinal direction and buckling restrained braces for the transverse direction. Optimization of the design is also discussed. The retrofit design is verified by nonlinear dynamic analyses. (A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10168664
• Authors:
  • KANAJI, H
  • FUJINO, Y
  • WATANABE, E
• Publication Date: 2008-8

Language

• English

Media Info

• Pagination: 271-277
• Serial:
  • STRUCTURAL ENGINEERING INTERNATIONAL
  • Volume: 18
  • Issue Number: 3
  • Publisher: International Association for Bridge and Structural Engineering
  • ISSN: 1016-8664

Subject/Index Terms

• TRT Terms: Bridge decks; Bridge members; Bridges; Buckling; Length; Loss and damage; Maintenance; Nonlinear systems; Seismicity; Structural connection
• Uncontrolled Terms: Bridge spans
• Geographic Terms: Japan
• ITRD Terms: 3455: Bridge; 3482: Bridge deck; 5522: Buckling; 1614: Damage; 8053: Japan; 3847: Maintenance; 6482: Non linear system; 3422: Restraint (fixing); 5731: Seismic; 3452: Span
• Subject Areas: Bridges and other structures; Construction; Design; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I53: Construction of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01111887
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Sep 30 2008 10:09AM