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Structural Behaviour of RC Beam-To-Column Connection with Corroded Shear Reinforcement

Charles K. S. Moy
Department of Civil Engineering, Xi’an Jiaotong-Liverpool University, Suzhou, Jiangsu, China

Abstract—Corrosion of steel reinforcement in reinforced concrete structures is a serious factor affecting their lifespan. There are more and more studies devoted to understanding the influence of corrosion on RC structures. Recent studies have focused on shear strength deterioration of RC beams since shear failure are often sudden leading to disastrous consequences. However, there is still a lack of understanding when it comes to beam-to-column connections, particularly connections with shear critical beams. This study provides much needed information about the structural behaviour of shear critical beam-to-column connections with corroded shear links. Full scale samples were tested for that purpose. The deterioration was monitored under constant static loading. It was found that the targeted 20% corroded shear link resulted in 13.5 – 17% loss in ultimate strength. The rotational stiffnesses were also greatly affected. The crack pattern helped to interpret the load path and the subsequent deterioration of the structure.
 
Index Terms—corrosion, shear reinforcement, RC beam to column connection, failure mode

Cite: Charles K. S. Moy, "Structural Behaviour of RC Beam-To-Column Connection with Corroded Shear Reinforcement," International Journal of Structural and Civil Engineering Research, Vol. 6, No. 2, pp. 83-88, May 2017. doi: 10.18178/ijscer.6.2.83-88