LAUNCHING GANTRIES FOR BRIDGE ERECTION IN DIFFICULT TERRAIN

Precast segmental bridges are being built in greater numbers and under increasingly difficult site conditions across the United States. These structures are often the last and sometimes most difficult sections of the Interstate Highway system to complete. Overhead launching gantries provide a practical and environmentally sensitive solution to constructing bridges in areas where ground access is limited. These specialized pieces of equipment allow precast balanced cantilever construction entirely from above the structure, even under difficult geometric restraints such as urban alignments and tight radius curves. (A) In this paper, the use of overhead launching gantries in building segmental concrete bridges is examined. For the covering abstract see IRRD 873033.

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 43-53

Subject/Index Terms

Filing Info

  • Accession Number: 00712374
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 90-5410-343-4
  • Files: ITRD
  • Created Date: Oct 24 1995 12:00AM