Abstract
Upon rehabilitation, beams and deck of the Ky 52 bridge over Dix River were observed to have excessive deflections. An investigation of the problem included field inspections, structural analyses, and interviews with relevant KYDOH and other personnel.
Field measurements were made of the beam deflections. Those were compared to construction field measurements and dead-load calculations.
The beam deflection problem is attributed to 1) a failure to provide for sufficient camber in the beams to accommodate for construction dead loads, and 2) pre-existing sags in the beams when placed prior to casting the deck. Part of the deck deflection problem can be attributed to a lack of provision for construction deflection in the top of slab elevations furnished to the contractor. However, cause of the remaining deck deflection was not determined.
Report Date
3-1988
Report Number
UKTRP-88-7
Digital Object Identifier
http://dx.doi.org/10.13023/KTC.RR.1988.07
Repository Citation
Hopwood, Theodore II; Oka, Vishwas G.; Hunsucker, David Q.; and Havens, James H., "Excessive Beam Deflections on the KY-52 Bridge Over Dix River (Boyle-Garrard County Line)" (1988). Kentucky Transportation Center Research Report. 525.
https://uknowledge.uky.edu/ktc_researchreports/525
Notes
The contents of this report reflect the views of the authors who are responsible for the facts and accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the University of Kentucky, the Kentucky Transportation Cabinet, or the Federal Highway Administration. This report does not constitute a standard, specification, or regulation. The inclusion of manufacturer names and trade names are for identification purposes and are not to be considered endorsements.