FATIGUE AND FRACTURE IN STEEL BRIDGES. CASE STUDIES

More than twenty-five case studies and numerous photographs illustrate the wide variety of conditions that have fostered fatigue crack phenomena. The book is divided into two parts. The first deals with cracks that have formed as a result of low fatigue resistant details or large initial discontinuities. The large discontinuities often resulted because attachments were not considered as important as a groove welded tension flange. The welded joints that were used did not have adequate quality control requirements imposed on the welded joints. In several cases the structural detail created a cracklike geometric condition that was not recognized. The second part of the book deals with fatigue cracks that form as a result of unanticipated secondary or displacement-induced stresses. Those cracks have generally formed in small web gaps between attachments and the girder flanges. The interaction between the main longitudinal members and the transverse framing such as cross-frames, diaphragms, and floor beams has resulted in out-of-plane distortion in the web gap that was not anticipated. Out-of-plane distortion has developed from handling and shipping of individual members, as well as the interaction between intersecting elements under everyday traffic. A large number of fatigue cracks generally form in a given structure because many small gaps normally exist. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/047180469X
• Corporate Authors:

  Wiley (John) & Sons, Limited

  Baffins Lane
  Chichester, Sussex  England 
• Authors:
  • Fisher, J W
• Publication Date: 1984

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 315 p.

Subject/Index Terms

• TRT Terms: Case studies; Cracking; Fatigue (Mechanics); Flanges; Fracture mechanics; Joints; Metal bridges; Quality control; Steel bridges; Stresses; Webbing; Welds
• Uncontrolled Terms: Discontinuity; Fracture; Welded joints
• ITRD Terms: 3472: Beam; 8018: Canada; 9003: Cause; 5211: Cracking; 5238: Defect (tech); 5595: Deformation; 9015: Discontinuous; 5520: Failure; 5579: Fatigue (mater); 2998: Joint (structural); 5567: Load; 5149: Mechanical handling; 3465: Metal bridge; 5483: Movement; 9063: Quality; 5575: Stress (in material); 9101: Surveillance; 755: Traffic; 8122: USA; 3852: Welding
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00466168
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 0-471-80469-X
• Files: ITRD, TRIS
• Created Date: Mar 31 1988 12:00AM