Structural Condition Assessment and Service Load Performance of Deteriorated Prestressed Concrete Deck Beam Bridges

The critical signs to be observed in existing structures that will lead the inspectors to conclude that a deck beam is being overloaded were are also studied. Several conclusions were found. Cracking of the longitudinal joint has little effect on the stiffness of the bridge if the transverse rod is snug. The presence of a snug transverse tie rod increases the strength of the longitudinal joint. After a longitudinal joint has fractured, reincorporating a snug transverse rod can significantly reestablish the stiffness of the longitudinal joint and reduce overloading of a deteriorated beam. Participation factors must be based on relative bending moments of one beam with respect to the total amount of bending moment produced by the applied load and not to the amount of total vertical displacement. The participation factors will vary along the span of the bridge deck and will depend on the longitudinal position of the load. The amount of load taken by a loaded beam of the deck is not directly related to the beam that will experience the maximum bending moment under a given load combination. (Abstract shortened by UMI.).

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Civil Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2015

Author dc:creator

• Fuentes, Juan Bolivar

Contributors dc:contributor

• Hawkins, Neil M.

• Engineering, Materials Science

Language dc:language

eng

Identifier

(MiAaPQ)AAI3044091

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/83181