CTRE is an Iowa State University center, administered by the Institute for Transportation.

Address: 2711 S. Loop Drive, Suite 4700, Ames, IA 50010-8664

Phone: 515-294-8103
FAX: 515-294-0467

Website: www.ctre.iastate.edu/

Iowa State University--Becoming the Best

Preventing Cracking at Diaphragm/Plate Girder Connections in Steel Bridges (TR-393)

Researcher(s)

Principal investigators:

Co-principal investigators:

Project status

Completed

Start date:
End date: 06/01/98

Publications

Report: Preventing Cracking at Diaphragm/Plate Girder Connections in Steel Bridges (TR-393) (1.4MB pdf) June 1998

Sponsor(s)/partner(s)

Sponsor(s):

About the research

Abstract: 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.