REFLECTOMETRIC AND DYNAMIC MEASUREMENTS ON THE STAYS OF THE POLCEVERA VIADUCT IN GENOA (ITALY)

This paper describes two non destructive tests carried out on the prestressed concrete stays of the Polcevera viaduct in Genoa. The tests were performed as a quality control measure and to assess the tensile stress currently acting on the stay. The state of the prestressing cables were determined using the RIMT (Reflectometric Impulse Measurement Technology) method. The tension in the stay was determined using the "dynamic method". Brief details are provided of the principles of the methods, the measurements carried out, and the main defects or stresses encountered. The results are compared with those obtained from a specially developed mathematical model of the system. This model simulated the dynamic behaviour of the stay subjected to the release test, and were conducted using the finite element non linear computer code ADINA. The model was subjected to a series of parametric dynamic tests, varying the traction force acting on the stay and appropriately reducing the axial and flexural stiffness of several strands so as to simulate the damage existing in certain zones of the stay. For the covering abstract of the conference see IRRD 858602.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0727719262
• Corporate Authors:

  Thomas Telford Limited

  London,   United Kingdom 
• Authors:
  • Camomilla, G
  • DONFERRI, M
  • GENNARI SANTORI, A
  • MATERAZZI, L
• Conference:
  • BRIDGE MANAGEMENT 2: INSPECTION, MAINTENANCE ASSESSMENT AND REPAIR. PAPERS PRESENTED AT THE SECOND INTERNATIONAL CONFERENCE ON BRIDGE MANAGEMENT HELD 18-21 APRIL 1993, UNIVERSITY OF SURREY, GUILDFORD
• Publication Date: 1993

Language

• English

Media Info

• Features: References;
• Pagination: p. 118-27

Subject/Index Terms

• TRT Terms: Bearing capacity; Bridges; Cables; Forecasting; Loss and damage; Mathematical models; Nondestructive tests; Stresses; Tension; Test procedures
• ITRD Terms: 3085: Bearing capacity; 3455: Bridge; 4530: Cable; 1614: Damage; 132: Forecast; 6473: Mathematical model; 6216: Non destructive testing; 5575: Stress (in material); 5502: Tension; 6288: Test method
• Subject Areas: Bridges and other structures;

Filing Info

• Accession Number: 00638414
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-7277-1926-2
• Files: ITRD
• Created Date: Nov 24 1993 12:00AM