Durability Assessment and Service Life Prediction of Reinforced Concrete Bridges in Coastal Areas
DOI:
https://doi.org/10.54691/rzcwjh31Keywords:
Concrete Bridge; Durability; Service Life Prediction.Abstract
Concrete bridge structures in coastal areas generally fail to meet design expectations due to frequent heavy loads and corrosive environments. In order to further promote carbon neutrality, it is urgent to improve the service life of concrete bridge structures. Due to the limited number of existing methods for calculating and predicting service life, they cannot meet the demand. Therefore, based on the existing durability evaluation methods for concrete structures, this article proposes a service life prediction method for reinforced concrete bridge structures under the comprehensive action of load and environment based on accelerated experiments and Fick's second law. This method simulates the real working environment of bridge structures in coastal areas, and can obtain reliable evaluation results for reinforced concrete bridge structures damaged by fatigue loads and subjected to freeze-thaw cycles and seawater erosion. However, its universality still requires a large amount of reliable long-term bridge engineering service status data for verification.
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