A Cost–Benefit Analysis Framework for City-Scale Seismic Retrofitting Scheme of Buildings

To improve urban seismic resilience, a reasonable retrofitting scheme for buildings is required. Urban cities contain large number of buildings, making it challenging to precisely assess the benefits each one. This paper proposes cost–benefit assessment framework that takes into account risk, damage, retrofit costs, economic losses, and analyses city-scale buildings. The proposed adopts readily available building parameters, including stories, construction year, total height, structural type, floor area, response spectrum design. It makes use empirical models newly developed story-level loss method combining physical mechanism ratios. For analysis, can strike good balance between data accessibility, computational workload, level result details, accuracy. adapt nimbly earthquake-induced indirect losses budgetary constraints on retrofitting. analysis 98,618 in Xi’an city, China, carried out. findings indicate that, when potential ratios are neglected, unreinforced masonry old most significant.