Accession Number:

ADA550595

Title:

Analysis and Load Rating of Pre-flex Composite Beams

Descriptive Note:

Final rept.

Corporate Author:

ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB

Personal Author(s):

• Portela, Genock
• Barajas, Ulises
• Albarran-Garcia, Jose A.

Report Date:

2011-09-01

Pagination or Media Count:

89.0

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 non-composite 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.

Descriptors:

• *BEAMS(STRUCTURAL)
• *LOADS(FORCES)
• *REINFORCED CONCRETE
• BRIDGES
• COMPOSITE MATERIALS
• COMPOSITE STRUCTURES
• CREEP
• METHODOLOGY
• RATINGS
• SHRINKAGE
• VEHICLES

Subject Categories:

• Laminates and Composite Materials
• Construction Equipment, Materials and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE