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

Dowel Bar Optimization, Phases I and II

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Researcher(s)

Principal investigator: Max Porter, 515-294-7456, mporter@iastate.edu (project list)

Other authors: Robert L. Guinn, Jr. Andrew L. Lundy

Project status

Completed

Start date:
End date: 10/01/01

Publications

Report: October 2001, http://www.ccee.iastate.edu/reports/DBO.pdf 285k (*pdf)

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Sponsor(s)/partner(s)

Sponsor(s):American Highway Technology

About the research

Abstract: The objectives of this research were as follows: investigate the static behavior of steel elliptical and round epoxy-coated dowel bars; investigate the failure modes of steel elliptical and round epoxy-coated dowel bars; evaluate the benefits and drawbacks of elliptically shaped dowels bars for load transfer; determine the effect of dowel bar spacing and projected load transfer efficiency; and evaluate if variable spacing in combination with shape factor and bar size can optimize costs and constructability.