Non-structural components account for a big ratio of the seismic repair cost in a building, and their influence is considerable in the evaluation of reparability performance based on seismic loss estimation. In this study, we focused on the seismic damage of LGS partition walls among the nonstructural members and investigated a method to evaluate the reparability performance of nonstructural members of RC buildings by calculating their seismic repair costs for multiple earthquake scenarios that may occur during the service period. In particular, the effect on the seismic repair cost was examined when the fragility curves of nonstructural members are sequentially optimized by image monitoring for multiple earthquake scenarios during the service life of the building.
