Retrofit of Existing Reinforced Concrete (RC) Buildings: Steel vs. RC Exoskeletons

The existing building stock is largely made up of reinforced concrete (RC) buildings, constructed between the post-World War II period and 1981, mostly consists buildings very quickly to meet great housing demand this period, that do not adhere anti-seismic energy regulations. Today, after more than fifty years, these have reached end their useful life cycle maintenance sustainable, presenting a series structural, architectural problems criticalities. myriad possible retrofit interventions currently available for RC structures drastically reduces when main requirement avoid operational interruptions buildings. In case, an additive structure, operating exclusively from outside as exoskeleton, typically used achieving appropriate retrofit. paper, two solutions are proposed addressed in Italy, one through application steel exoskeleton other system. A set push-over (PO) analyses carried out define performance point both original combined systems. comparative results then discussed.