Reinforcement jacket in reinforced concrete shears

[M.sa]

Hello, I have done many risky building analyzes before and we have seen reinforced curtains in our on-site survey works. The mantle is made with the same logic as the column, but I could not find the definition of such an application in the regulation or any other source. If so, is there any data on their account? or is it not appropriate to do. As a result, for curtains that are brittle in the performance analysis, it can be prevented by reinforcement with steel or fibrous polymer, but how can the problem of displacement be solved?