Japan has a network of some 1,110,000 km public roads covering all the territory including remote islands, and administrates as many as 580,000 bridges ranging a 2m-long culvert to a long suspension bridge. These bridges subjected to severe natural conditions, heavy traffic loads and sometimes strong motion of earthquakes are liable to sustain injuries and harm in years after their construction. Repairing and retrofitting damaged bridges against further harm is a work of great importance from the socio-economical point of view amind a low-growth economic circumstance of the country. Here, the author introduce general concepts of repair and retrofit works on road bridge substructures with an emphasis on concrete structures, and then show some examples of the works. (Author)

  • Supplemental Notes:
    • Seismic Research for Highway Bridges (US-Japan Program) is a collection of Papers Reprinted Directly from the United States-Japan Cooperative Program on Natural Resources (UJNR) Panel on Wind and Seismic Effects; and the Proceedings of the US-Japan Seminars on Repair and Retrofit of Structures, 1979 to 1984.
  • Corporate Authors:

    Pittsburgh University, Pittsburgh

    Department of Civil Engineering
    Pittsburgh, PA  United States  15261

    National Science Foundation

    1800 G Street, NW
    Washington, DC  United States  20550
  • Authors:
    • Asanuma, H
  • Publication Date: 1984-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00394018
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 31 1985 12:00AM