ABSTRACT
At present, reinforced concrete structures are widely used; however, because of improper design, usage, and maintenance; natural disorders such as earthquake, fire, and flood; and higher requirement, these buildings have many problems. Some problems endanger the safety of the structure. Structural strengthening requires low investment to repair and restore the bearing capacity of these structures. In addition, with the development of economy, to ensure the new requirements, such as the need to change the function or add layer building, these buildings should be reinforced. As strengthening technology has attracted increasing attention, the author combined the theoretical and experimental situations worldwide, summarized the common reinforcement methods, and provided the basis for future research.
