Project Details
START DATE
06/01/98
END DATE
06/01/98
FOCUS AREAS
SPONSORS
Iowa Department of Transportation
Iowa Highway Research Board
Researchers
Principal Investigator
Terry Wipf
Co-Principal Investigator
Lowell Greimann
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.