| Issue |
MATEC Web Conf.
Volume 199, 2018
International Conference on Concrete Repair, Rehabilitation and Retrofitting (ICCRRR 2018)
|
|
|---|---|---|
| Article Number | 02012 | |
| Number of page(s) | 7 | |
| Section | Concrete Deteriorating Mechanisms and Prediction of Durability | |
| DOI | https://doi.org/10.1051/matecconf/201819902012 | |
| Published online | 31 October 2018 | |
Deterioration model of RC beams under marine atmospheric environment
1
Key Laboratory of Performance Evolution and Control for Engineering Structures, Ministry of Education, P. R. China
2
Department of Structural Engineering, College of Civil Engineering, Tongji University, 1239 Siping Rd., Shanghai 200092, P.R. China.
* Corresponding author: gxl@tongji.edu.cn
This paper primarily proposes a deterioration model of reinforced concrete (RC) beams under marine atmospheric environment. Considering factors including corrosion initiation time, corrosion rate, corrosion non-uniformity and its effects on mechanical performances of steel bars, a comprehensive model was developed for the assessment of mechanical behaviour of RC beams under marine atmospheric environment. Also, to avoid the shortages brought by the classical truss theory, a modified compression field theory (MCFT) was applied to evaluate the effects of stirrups corrosion on the shear capacity of an RC beam. Then, according to a virtual case, the life-cycle performance of an RC beam was predicted through probability density evolution method (PDEM). Results approved the feasibility and effectiveness of the proposed model. Finally, further study work was pointed out.
© The Authors, published by EDP Sciences, 2018
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