Assessment of Residual Shear Strength of Corroded Reinforced Concrete Beams using Analytical Modeling

Rahul Kumar*, Harish Chandra Arora**, Vikas Prabhakar ***, Shobha Ram****, Dheeraj Kumar Singh*****
*,***-***** Department of Civil Engineering, Gautam Buddha University, Greater Noida, India.
** Principal Scientist, CSIR-CBRI, Roorkee, India.
Periodicity:June - August'2021
DOI : https://doi.org/10.26634/jce.11.3.18399

Abstract

Corrosion of embedded steel plays a vital role in deterioration of Reinforced Concrete (RC) members that affects the service life of RC structures reducing the strength and load carrying capacity of the structural elements. Many of the researchers around the world have focused mostly on the prediction of the residual flexural strength of corroded RC beams. There is comparatively lesser data available on prediction of the residual shear strength of corroded RC beams, although it is well known that shear failure of RC beam is a brittle sudden failure and is catastrophic in nature. The steel stirrups present in RC beam are more vulnerable to surrounding environment due to the thinner concrete cover around them as compared to the main reinforcement bars. The present study has been focused towards the prediction of the residual shear strength of RC beams after corrosion. In this study various experimental tests data for establishing the shear capacity of uncorroded and corroded RC beams have been collected and a large database has been prepared. The existing models in the research studies for prediction of the shear strength of RC corroded beams have also been collected. Predicted residual shear strength of corroded values from different models for different experimental studies were validated and cross checked. Prediction of residual shear strength of a corroded RC beam in one of the existing RC framed structure was performed with the most appropriate model based upon the outcome of the analysis of results obtained.

Keywords

Residual Shear Strength, Reinforced Concrete (RC) Beams, Corrosion.

How to Cite this Article?

Kumar, R., Arora, H. C., Prabhakar, V., Ram, S., & Singh, D. K. (2021). Assessment of Residual Shear Strength of Corroded Reinforced Concrete Beams using Analytical Modeling. i-manager's Journal on Civil Engineering, 11(3), 12-22. https://doi.org/10.26634/jce.11.3.18399

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