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Title: Analysis and load rating of pre-flex composite beams
Authors: University of Puerto Rico (Mayagüez Campus)
United States. Army. Installation Management Command.
Portela, Genock.
Barajas, Ulises.
Albarran-Garcia, José A.
Keywords: Pre-flex beam bridge
Pre-flex beam analysis
Load rating
Creep and shrinkage
High strength concrete
Military load classification
Composite construction
Publisher: Geotechnical and Structures Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/GSL TR ; 11-33.
Description: Technical Report
Abstract: This report describes a methodology for analysis and load rating of pre-flex beams subjected to vehicular and military loads. The methodology is based on service limits for different loading stages. The analysis is divided into an initial stage of pre-flexion of the noncomposite beam, followed by the release and subsequent states of loading of a composite beam. Creep and shrinkage effects are considered in the analysis adopting Giacomo and Maninni (2006) and ACI 209 (1992) methods. An example bridge was used to describe a step-by-step process of analysis.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Technical Report

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