SEISMIC LOCK-UP DEVICE

Four seismic lock-up devices (LUDs) were installed on a bridge in southern Illinois as part of an Illinois Department of Transportation demonstration. The three-span structure used for the demonstration is a continuous steel girder near the New Madrid, Illinois, fault system. The LUD retrofitting was completed in 4 days and tripled the seismic capacity of the bridge. The bridge remained open to traffic at all times during the retrofit. LUDs enable expansion abutments and piers to resist loads associated with earthquakes while permitting beam expansion and contraction.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Publication Date: 1998-11

Language

• English

Media Info

• Features: Photos;
• Pagination: p. 33
• Serial:
  • Civil Engineering
  • Volume: 68
  • Issue Number: 11
  • Publisher: American Society of Civil Engineers
  • ISSN: 0885-7024
  • Serial URL: http://www.pubs.asce.org/ceonline/newce/html

Subject/Index Terms

• TRT Terms: Earthquake engineering; Earthquake resistant structures; Girder bridges; Retrofitting; Steel structures
• Uncontrolled Terms: Seismic lock up devices
• Geographic Terms: Illinois
• Subject Areas: Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods;

Filing Info

• Accession Number: 00758612
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 25 1999 12:00AM