End date: 06/01/98
About the research
The objective of this research was to investigate experimentally a method proposed by the Iowa DOT to prevent cracking at the diaphragm/plate girder connection in steel bridges with X-type or K-type diaphragms. The method consists of loosening the bolts at some connections between the diaphragm diagonals and the connection plates.
Report: Preventing Cracking at Diaphragm/Plate Girder Connections in Steel Bridges (TR-393) (1.4MB pdf) June 1998
- Iowa Department of Transportation
- Iowa Highway Research Board