INSPECTION AND REPAIR OF SOME HIGHWAY BRIDGES IN ITALY. BRIDGE MANAGEMENT. INSPECTION, MAINTENANCE, ASSESSMENT AND REPAIR. PAPERS PRESENTED AT THE FIRST INTERNATIONAL CONFERENCE ON BRIDGE MANAGEMENT, UNIVERSITY OF SURREY, GUILDFORD, MARCH 28-30, 1990

This paper reports about the inspection and repair of a number of 25-year-old viaducts in service along the A3 highway linking central to southern Italy. Particular reference is made to dynamic tests that allowed useful information to be collected about the effective prestressing forces acting on the beams. The results obtained are compared with those derived from other in-situ tests. The criteria followed for the repair (or demolotion) of the decks and for their seismic retrofitting are briefly presented. The 25 year old bridges were found to be in a bad condition due to the extensive use of de-icing salt and to the absence of any kind of waterproofing between the deck slab and the surfacing. In addition a dramatic reduction in the expected value of the prestressing force in the beams was found. The addition of new cables was the solution for the cases in which the loss of prestress was in the medium range. Improved behaviour under seismic action was obtained by making the slab continuous on the supports and by adding energy dissipating devices on the abutments. For the covering abstract of the conference see IRRD 830553.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1851664564
• Corporate Authors:

  Elsevier Science Publishers

  Crown House, Linton Road
  Barking, Essex IG11 8JU,   England 
• Authors:
  • Petrangeli, M P
• Publication Date: 1990

Language

• English

Media Info

• Pagination: p. 373-381
• Serial:
  • Publication of: Routledge
  • Publisher: Routledge

Subject/Index Terms

• TRT Terms: Bridges; Conferences; Corrosion; Maintenance; Methodology; Prestressing; Surveillance
• Geographic Terms: Italy
• Subject Areas: Bridges and other structures; Maintenance and Preservation;

Filing Info

• Accession Number: 00606649
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• ISBN: 1-85166-456-4
• Files: ITRD, TRIS
• Created Date: Mar 31 1991 12:00AM