STRAIGHTENING A SLOUCH : WHEN A SPAN IN FLORIDA BUCKLES, JACKING SYSTEM ANSWERS THE CALL

This article looks at a buckled bridge in Florida that was repaired using a jacking system. The Clearwater Memorial Causeway Bridges scaffolding buckled and the span dropped seven inches, leading contractors to move the several hundred-ton concrete span back into place with 24, 100-ton jacks. Eight primary and 16 supporting jacks were used, ultimately delivering 800 tons of force at 3,350 psi hydraulic pressure. The article details individual jack configurations and hydraulic pressures as well as cylinder controller types and appropriate lift ratios. Use of a surveyor, a five-man jack team and the coordination of traffic are also discussed.

  • Availability:
  • Corporate Authors:

    Scranton Gillette Communications

    380 E Northwest Highway, Suite 200
    Des Planes, IL  United States  60016-2282
  • Publication Date: 2005-4

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01001644
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Jul 7 2005 12:00AM