Flexural performance of reinforced concrete beams strengthened with self-compacting concrete jacketing and steel welded wire mesh

Abstract

Reinforced Concrete (RC) beam is a paramount structural member for sustaining loads. As result, finding an appropriate strengthening technique is necessary not only for maintaining the safety of the structures but also for achieving the life span requirements. This paper provided an analytical inspection for experimental work of RC beams strengthened with Self-compacting concrete (SCC) and galvanized steel welded wire mesh (SWM) as reinforcement in flexural. As for practical work, the test program included eighteen small-scale beams. All beams were subjected to monotonically loading rate until failure on three control beams, on four monolithic casted control beams and eleven strengthened beams. The strengthened beams were categorized into two groups A and B based on test variables, namely, the SWM properties and the bonding technique. Based on achieved test results, this strengthening technique improved the flexural capacity of strengthened beams significantly. Simplified structural design for predicting the flexural strength and deflection was introduced in this paper at yielding and at the ultimate stages. The comparison was conducted between tested experimental results and the theoretical analysis results. This analysis was performed based on the basis of flexural theory and also reasonable consistent between experiment test results and calculated values was gained at the ultimate and yield stage as well as the derived formulas can be used in real-world strengthening applications.