![]() ![]() On the other hand, the NSM strengthening technique has a number of advantages in comparison to the EBR technique. Moreover, externally-bonded steel or fiber-reinforced polymer (FRP) plates are vulnerable to thermal, environmental, and mechanical damage. Several researchers have introduced end anchorages to solve this type of failure. However, the main drawback of this method is that it often suffers from premature debonding due to high shear stresses at the plate ends. The EBR technique is widely implemented on site and extensive research has been carried out in this area. ![]() Externally-bonded reinforcement (EBR) and near-surface mounted (NSM) reinforcement are the leading strengthening techniques used for strengthening existing RC structures. Strengthening of existing reinforced concrete (RC) structures is a necessity due to the destructive environmental conditions, increased service loads, as well as errors in design and during construction. The predicted result from the analytical model shows good agreement with the experimental result, which ensures the competent implementation of the present NSM-steel and CFRP technique. The test results indicate an increase in the cracking load of 69% and an increase in the ultimate load of 92% compared with the control beam. The failure characteristics, yield, and ultimate capacities, deflection, strain, and cracking behavior of the beams were evaluated based on the experimental output. A four-point bending test was applied on beams strengthened with different types and ratios of NSM reinforcement. ![]() Analytical models were developed in predicting the maximum crack spacing and width, concrete cover separation failure loads, and deflection. Experimental and analytical studies carried out to explore the performance of reinforced concrete (RC) members strengthened with the NSM composites. This paper presents a NSM technique incorporating NSM composites, namely steel and carbon fiber-reinforced polymer (CFRP) bars, as reinforcement. Externally-bonded reinforcement (EBR) and near-surface mounted (NSM) reinforcement are two preferred strengthening approach. Existing structural components require strengthening after a certain period of time due to increases in service loads, errors in design, mechanical damage, and the need to extend the service period. ![]()
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