Probabilistic demand hazard assessment of a RC building with buckling restrained braces exposed to seismic loadings

Hospitals are considered essential institutions that must continue to operate after a natural disaster or emergency.Their ability to serve users depends not only on immediate response in medical terms, but also on the capacity of their facilities to resist environmental loads.In this regard, dissipation systems have been used as a solution to improve the seismic behavior of building structures.This paper estimates demand exceedance rates of a 10-story reinforced concrete (RC) hospital building with buckling restrained braces (BRBs) located in soft soil of Mexico City.Different performance thresholds are considered to evaluate both structural fragility and demand exceedance rates of structural and non-structural elements derived from nonlinear dynamic analysis.Uncertainties associated with the occurrence of seismic loadings are considered.The use of dissipation systems could be an alternative solution to improve both structural performance and system reliability for a given environmental loading.