Projects and Grants per year
Grants and Contracts Details
Description
Recent studies in Maryland have shown that approximately one out of every
five overpasses has been struck by an over-height vehicle. One-sixth of these bridges have
received considerable damages, and required repair. Bridges that are hit are more likely to be
located over interstate highways and are more likely to be hit more than once. The use of heatstraightening
to repair damaged steel dates back to the 1930s, with low steel grades. Heatstraightening
for steel bridge girders has tended to be more of an art than a science, with
techniques passed from one practitioner to the next without proper technical documentations
regarding: (1) how many times heat-straightening may be considered for different steel grades;
(2) the behavior of built-up and rolled shapes during and after heat straightening; and (3) other
technical issues including twisting damage of the web of the steel girders, crack migration after
heat-straightening, flexural damage in both the major and minor axis, and localized bulges in the
steel plates.
Status | Finished |
---|---|
Effective start/end date | 7/1/07 → 6/30/08 |
Funding
- KY Transportation Cabinet
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Projects
- 1 Finished
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Kentucky Cooperative Transportation Research Program Part II KCTRP 08-28
Toussaint, P. (PI), Crabtree, J. (CoI), Graves, R. (CoI), Grossardt, T. (CoI), Harik, I. (CoI), Hopkins, T. (CoI), Hopwood, T. (CoI), Mahboub, K. (CoI) & Pigman, J. (CoI)
7/1/07 → 6/30/08
Project: Research project