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Please use this identifier to cite or link to this item: http://hdl.handle.net/1903/13107

Title: Evaluation of Skewed Simple Span Transversely Post-Tensioned Adjacent Precast Concrete Slab Bridges
Authors: Briner, Timothy
Advisors: Fu, Chung C.
Department/Program: Civil Engineering
Type: Thesis
Sponsors: Digital Repository at the University of Maryland
University of Maryland (College Park, Md.)
Subjects: Civil engineering
Keywords: adjacent
bridge
post-tension
precast
skew
transverse
Issue Date: 2012
Abstract: Adjacent precast, prestressed concrete multi-beam bridges have recently become more prevalent due to their rapid construction time and cost effectiveness. However, longitudinal cracking primarily caused by insufficient and/or inadequate transverse connection between the beams has been discovered in the concrete overlays of recently built skewed bridges. Maryland State Highway Administration requested a research project be conducted to determine the cause or causes of the reflective cracking and propose revisions to the current state code concerning the number, orientation, and location of the transverse post-tensioning. This thesis contains a description of the behavior of skewed bridges, a survey of other states' practices, a field test conducted on a local bridge that has exhibited longitudinal cracking, the finite element model analyses simulating the field test and their corresponding results, and a parametric study conducted to determine the best practices for transversely post-tensioning this type of bridge in Maryland.
URI: http://hdl.handle.net/1903/13107
Appears in Collections:UMD Theses and Dissertations
Civil & Environmental Engineering Theses and Dissertations

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