A STUDY ON THE FATIGUE BEHAVIOUR OF SEVERAL PARTIALLY PRESTRESSED CONCRETE BRIDGES

This paper presents the preliminary results of a wider study for the probabilistic assessment of the fatigue damage of partially prestressed concrete bridges, as compared with fully prestressed concrete bridges. The following steps are required to study the fatigue safety of partially prestressed concrete bridges: (1) study and their randomness, including traffic loads, thermal gradients and settlements; (2) analyse the response of a section under the effects of external actions, accounting for the randomness of the geometry and material properties; (3) study the behaviour of materials subjected to repetitive loads; and (4) define the limit state function. Results are given for three concrete one-span 12.7m wide bridges, each designed for three different degrees of prestressing and for two lanes of traffic in one direction. The fatigue safety of these bridges is analysed, using: (1) a probabilistic simulation approach; and (2) the criteria of the fatigue specifications proposed in the European EC-2 standard. Only the fatigue damage of reinforcing and prestressing steel is analysed, and it is assumed that the fatigue damage of concrete will be less than that of steel. For the covering abstract see IRRD 869077.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0444820639
• Corporate Authors:

  Elsevier

  Sara Burgerhartstraat 25
  1055 KV Amsterdam,   Netherlands 
• Authors:
  • Crespo-Minguillon, C
  • CASAS, J R
• Publication Date: 1994

Language

• English

Media Info

• Features: References;
• Pagination: p. 367-72
• Serial:
  • BRIDGE ASSESSMENT MANAGEMENT AND DESIGN. PROCEEDINGS OF THE CENTENARY YEAR BRIDGE CONFERENCE, (HELD) 26-30 SEPTEMBER 1994, CARDIFF
  • Publisher: Elsevier

Subject/Index Terms

• TRT Terms: Bearing capacity; Box girders; Bridges; Conferences; Cracking; Failure; Fatigue (Mechanics); Ground settlement; Loss and damage; Prestressed concrete; Probability; Repeated loads; Simulation; Steel; Stresses
• ITRD Terms: 3085: Bearing capacity; 3474: Box girder; 3455: Bridge; 8525: Conference; 5211: Cracking; 1614: Damage; 5520: Failure; 5579: Fatigue (mater); 4796: Prestressed concrete; 6534: Probability; 5588: Repetitive loading; 5792: Settlement; 9103: Simulation; 4542: Steel; 5575: Stress (in material)
• Subject Areas: Bridges and other structures; Data and Information Technology;

Filing Info

• Accession Number: 00676437
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-444-82063-9
• Files: ITRD
• Created Date: Apr 12 1995 12:00AM