01025672

Component

https://doi.org/10.3141/1976-23

http://scholar.google.com...arni&publication_year=2006

A major portion of maintenance budgets in the United States is usually directed to deck replacement on the aging population of bridges. Concrete deck deterioration, which is mainly due to corrosion of steel reinforcing bars, often takes place before the design life of the bridge is achieved. Fiber-reinforced polymer (FRP) bars offer a tensile reinforcement alternative that would eliminate corrosion-related problems. Estimation of the flexural capacity of concrete elements reinforced with FRP bars relies on the same concepts of equilibrium and compatibility used for other materials. Incorporation of these concepts in a load and resistance factor design format requires a reliability study and calibration of the new system. This paper presents statistically derived resistance models for concrete decks reinforced with FRP bars. The resistance models are based on a detailed layered-section analysis that takes into account the nonlinearities of the materials. A wide range of parameters was considered, including various thicknesses, concrete strengths, and reinforcement ratios. The results from this research will be used in a calibration study that will provide resistance factors suitable for flexure design of bridge decks reinforced with FRP bars.

01039139

English

pp 190-196

2006

Transportation Research Record: Journal of the Transportation Research Board

0309099862

Print

Figures (4) ; References (19) ; Tables (3)

Bridge decks; Fiber reinforced plastics; Flexure; Mathematical models; Reinforced concrete pavements; Reinforcing bars

Flexural capacity; Resistance factors

Bridges and other structures; Design; Geotechnology; Highways; Materials; I24: Design of Bridges and Retaining Walls; I35: Miscellaneous Materials

TRIS, TRB, ATRI

Mar 3 2006 10:41AM

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