This project investigates the cause(s)
of premature deterioration of MoDOT finger plate and flat plate expansion
devices under high traffic volumes and then uses that information to design new
Load and Resistance Factor Design (LRFD) finger plate and flat plate designs
that are intended to last 40 years or more with minimal maintenance. A robust finger plate device was designed to accommodate
bridges which require large expansion lengths on high large volume routes.
In addition, suggestions for improvements of
the existing finger plate device design were made for use on routes with lower
traffic volumes.
Repair and replacement
best practices and details were also developed as part of this project.
VIEW REPORT
Report number: cmr16-008
Published: January 2016
Project number: TR201516
Author(s):
Dr. Sarah Orton, Dr. Hani Salim, Alaaeldin Elsisi, and
Andrew Pelikan (University of Missouri); David Barrett, Cory Imhoff, Gregory Kuntz, and Matthew
Wombacher (HDR)
Performing organizations: University of
Missouri-Columbia Department of Civil & Environmental Engineering and HDR Engineering
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