Some methods for reinforcement of reinforced concrete column

Abstract

     Structural reinforced concrete columns (RC) of the works had been used long -term by the effects of many different causes such as: load, climatic, corrosive chemicals or incidents. Buildings had been damaged by survey, design or construction. Or demand of changes such as improved use of technology, equipment changes, structural changes, load changes and works to expand as demand expanded surface, raising additional height, additional stories... must be reinforced, repaired by different methods. In this paper, three methods are introduced including: (1) column cross section increasion method, (2) steel cladding method, (3) FRP fiber method.