Designers have consistently been concerned with long term deformation of bridges to mitigate unfavorable effects such as excessive movement and cracking. Furthermore, any developed tool of use to a designer must make use of parameters known at the time of design as well as be simplistic in nature as defined in the code. As such, many prediction models for the free shrinkage of a concrete specimen have been developed toward this end. However, structures designed and placed in the field experience shrinkage under restraint. Also, the differences in environmental conditions affect the shrinkage of structures. It is important to understand the restrained shrinkage of structures under field conditions and use this understanding to make improved guidelines on shrinkage from a design standpoint. In this study, the prediction and modelling of the free shrinkage of small samples under constant conditions were expanded to the prediction and modelling of restrained shrinkage under field conditions of large samples using finite element analysis. A parametric analysis was then performed to derive useful information from a design perspective such as the impact of various design parameters on the performance of a bridge deck. The findings indicated that the use of reinforcement is the preferable method of addressing shrinkage in bridge decks. Furthermore, the efficacy of the amount of reinforcement specified in the AASHTO guidelines to mitigate excessive cracking in bridge decks was discussed. The traditional and empirical methods of bridge deck design were investigated for shrinkage reinforcement. Finally, recommendations were suggested to the reinforcement requirements based on the findings of this study.
Subject (authority = RUETD)
Topic
Civil and Environmental Engineering
Subject (authority = ETD-LCSH)
Topic
Bridges--Design and construction
Subject (authority = ETD-LCSH)
Topic
Concrete bridges--Design and construction
Subject (authority = ETD-LCSH)
Topic
Concrete--Expansion and contraction
RelatedItem (type = host)
TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier (type = RULIB)
ETD
Identifier
ETD_7313
PhysicalDescription
Form (authority = gmd)
electronic resource
InternetMediaType
application/pdf
InternetMediaType
text/xml
Extent
1 online resource (xi, 156 p. : ill.)
Note (type = degree)
Ph.D.
Note (type = bibliography)
Includes bibliographical references
Note (type = statement of responsibility)
by Anuoluwa Adediji
RelatedItem (type = host)
TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier (type = local)
rucore19991600001
Location
PhysicalLocation (authority = marcorg); (displayLabel = Rutgers, The State University of New Jersey)
Rutgers University. Graduate School - New Brunswick
AssociatedObject
Type
License
Name
Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.