Publication:
Behavior of Prestressed Concrete Bridges with Closure Pour Connections and Diaphragms

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dc.contributor.advisorSergio Brena
dc.contributor.advisorKara Peterman
dc.contributor.authorRamos, Gercelino
dc.contributor.departmentUniversity of Massachusetts Amherst
dc.contributor.departmentCivil Engineering
dc.date2023-09-24T00:53:47.000
dc.date.accessioned2024-04-26T18:28:13Z
dc.date.available2024-04-26T18:28:13Z
dc.date.submittedSeptember
dc.date.submitted2019
dc.description.abstractAccelerated Bridge Construction (ABC) has gained substantial popularity in new bridge construction and bridge deck replacement because it offers innovative construction techniques that result in time and cost savings when compared to traditional bridge construction practice. One technology commonly implemented in ABC to effectively execute its projects is the use of prefabricated bridge components (precast/prestressed bridge components). Precast/prestressed bridge components are fabricated offsite or near the site and then connected on-site using small volume closure pour connections. Diaphragms are also commonly used to strengthen the connection between certain prefabricated components used in ABC, such as beam elements. Bridges containing closure pour connections and diaphragms can be designed using AASHTO LRFD live-load distribution factor formulas under the condition that the bridge must be sufficiently connected. However, these formulas were developed using analytical models that did not account for the effects of closure pours and diaphragms on live-load distribution. This research study investigates live-load distribution characteristics of precast/prestressed concrete bridges with closure pour connections and diaphragms. The investigation was conducted using finite element bridge models with closure pour joints that were calibrated using experimental data and different configuration of diaphragms. The concrete material used for the closure pour connections was developed as part of a larger project intended to develop high early-strength concrete mixtures that specifically reach strength in only 12 hours, a critical requirement for ABC projects.
dc.description.degreeMaster of Science in Civil Engineering (M.S.C.E.)
dc.identifier.doihttps://doi.org/10.7275/15170455
dc.identifier.orcidhttps://orcid.org/0000-0002-3423-162X
dc.identifier.urihttps://hdl.handle.net/20.500.14394/33910
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1880&context=masters_theses_2&unstamped=1
dc.source.statuspublished
dc.subjectPrecast prestressed concrete bridges
dc.subjectclosure pour connections
dc.subjectdiaphragms
dc.subjectlive load distribution factors
dc.subjectdecked bulb tee girders
dc.subjectaccelerated bridge construction
dc.subjectCivil Engineering
dc.subjectStructural Engineering
dc.titleBehavior of Prestressed Concrete Bridges with Closure Pour Connections and Diaphragms
dc.typeopenaccess
dc.typearticle
dc.typethesis
digcom.contributor.authorisAuthorOfPublication|email:gercelino@hotmail.com|institution:University of Massachusetts Amherst|Ramos, Gercelino
digcom.identifiermasters_theses_2/850
digcom.identifier.contextkey15170455
digcom.identifier.submissionpathmasters_theses_2/850
dspace.entity.typePublication
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