Time Series Behaviour of Aging R/C Bridge Girders beyond Design Stage

Amit Sagar; Saman de Silva; Sujeeva Setunge

doi:10.4028/www.scientific.net/AMM.438-439.855

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 438-439Time Series Behaviour of Aging R/C Bridge Girders...

Time Series Behaviour of Aging R/C Bridge Girders beyond Design Stage

Abstract:

Aging reinforced concrete (R/C) bridge girders, currently in use, exhibit cracks wider than predicted at the design stage. Variation in material properties over time and increase in imposed live loads during service life can be the possible reasons for this behavioural difference. Visual condition monitoring reports of bridge assets do not seem to provide a more quantifiable explanation to this phenomenon. Therefore, authors propose a theoretical time dependent methodology, to predict the crack widths with age. The proposed method takes into consideration flexural stresses, shrinkage and creep. A bridge girder, currently in use, is analysed using proposed theoretical approach and the outcomes are compared with condition monitoring records available.

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Periodical:

Applied Mechanics and Materials (Volumes 438-439)

Pages:

855-859

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.438-439.855

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Online since:

October 2013

Authors:

Amit Sagar, Saman de Silva, Sujeeva Setunge

Keywords:

Condition Monitoring, Crack Width, Flexural Stresses, Live Load, R/C Bridge Girders

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