Abstract:
Building non-structural systems often suffer more severe damage than that of structural systems under earthquakes. As a typical and important non-structural system, it is of great importance to evaluate the aseismic resilience of stone cladding. In this study, a general framework for evaluating the aseismic resilience of stone cladding is proposed, along with the calculation methods for evaluation indicators such as restoration cost and repair time. By conducting a shaking table test, classification criteria of damage states for unitized stone cladding are discussed and fragility curves are obtained. Stone cladding cases for four different structural systems with two types of building layouts are studied. Seismic fragility analysis is conducted, and aseismic resilience recovery curves for stone cladding are established, along with aseismic resilience evaluation grades. The research results indicate that the aseismic resilience evaluation method proposed for stone cladding can effectively evaluate its resilience. The peak floor acceleration can serve as an engineering demand parameter for evaluating the aseismic resilience of unitized stone claddings.