A Method for Seismic Resilience Evaluation of Buildings Based on Component Function Assembly

Abstract:

To quantify the seismic resilience of buildings， a general functional loss quantification method of buildings based on the component function assembly and a corresponding seismic resilience evaluation method of buildings were proposed. A probability-based function loss is defined for components to consider the uncertainty in earthquakes. A hierarchic structure is used to assemble the component function loss to acquire the building function loss. Based on the post-earthquake function recovery model driven by the restoration scheme， the time-varying function curve of the building function is obtained. The calculation method of seismic resilience of buildings is presented based on the Monte Carlo method. The method is applied to a 10-storey apartment building with reinforced concrete frame structure， and the effects of different resilience enhancement methods on the building were compared. The results show that the proposed method can reasonably evaluate the seismic resilience of buildings. The seismic resilience of the building in the earthquake with fortification intensity is good. The non-structural components like infilled walls have great effects on the seismic resilience of buildings. Among various kinds of resilience enhancement methods， the seismic improvement of components and the optimization of post-earthquake repair schemes are more efficient.