Analysis Tools and Rapid Screening Data for Distortional Fatigue in Steel Bridge Girders
2001-11-01
Loading...
View/Download File
Persistent link to this item
Statistics
View StatisticsJournal Title
Journal ISSN
Volume Title
Title
Analysis Tools and Rapid Screening Data for Distortional Fatigue in Steel Bridge Girders
Authors
Published Date
2001-11-01
Publisher
Type
Abstract
Fatigue Cracking often occurs in composite bridges with unstiffened girder web gaps at the ends of transverse stiffeners. In this project, researchers sought to better understand bridge diaphragm deflection behavior and advance the ability to estimate web gap distortional stress. Trends from the parametric studies led to general observations that may assist in identifying fatigue-prone bridges. Variables that influence diaphragm deflection behavior include girder spacing, bridge skew, span length, and deck thickness. Transverse load distribution properties appear to play the most significant role in determining the magnitude of differential deflection. Parameter study stress trends indicate that out-of-plane distortional stress in fatigue prone web gaps primarily depends on web gap properties, bridge span length, and angle of skew. Differential deflection and web gap dimension trends apply to a varied spectrum of bridge configurations. The research resulted in a method to assess bridge girder differential deflection and distortional stress in actual steel bridges without complex analysis and modeling. Proposed procedures for evaluating out-of-plane stress should prove practical and aid in screening, identifying, and assessing bridges vulnerable to distortion -induced fatigue cracking.
Keywords
Description
Related to
Replaces
License
Collections
Series/Report Number
Funding information
Minnesota Department of Transportation
Isbn identifier
Doi identifier
Previously Published Citation
Suggested citation
Berglund, Evan; Schultz, Arturo E. (2001). Analysis Tools and Rapid Screening Data for Distortional Fatigue in Steel Bridge Girders. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/749.
Content distributed via the University Digital Conservancy may be subject to additional license and use restrictions applied by the depositor. By using these files, users agree to the Terms of Use. Materials in the UDC may contain content that is disturbing and/or harmful. For more information, please see our statement on harmful content in digital repositories.