Corrosion-Induced Cracking Pattern Analysis of RC Beam under Sustained Load Considering the Poromechanical Characteristics of Corrosion Products

نویسندگان

چکیده

Concrete cracking is the significant stage of RC structural deterioration induced by steel corrosion. To predict corrosion-induced loaded structure, a multi-scale model proposed. The formation and transport corrosion products, which affect volumetric expansion at steel–concrete interface, are considered in this model. Then, based on poro-mechanics, calculation stress pore structure concrete enabled. practical component obtained from proposed shows satisfactory agreement with experimental observations. under different loading conditions investigated. results show that effect external loads time-to-cracking moderate; varies no more 9% surface moment, whereas effects condition pattern reinforced beams found. Furthermore, higher load level, rapidly cracks develop; maximum crack widths beam subjected to 60% ultimate 1.14 1.22 times 30% 0% beams, respectively, when reaching serviceability limit state.

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ژورنال

عنوان ژورنال: Buildings

سال: 2022

ISSN: ['2075-5309']

DOI: https://doi.org/10.3390/buildings12122256