A Preliminary Study on the Robustness of Grouping Based Maintenance Plan Optimization in Building Retrofitting

Abstract In the recent years, a series of studies which investigate the building retrofitting and maintenance plan optimization have been proposed. In these studies, items are categorized into several homogeneous groups to address the complexity. However, the grouping method involves the impacts of the groupings to the optimization results. This paper investigates the robustness of the maintenance plan performances with different groupings. A mathematical description is illustrated, including the definition of grouping, the grouping based control system formulation and the definition of the performance robustness. Taking advantage of the definitions and a sensitivity analysis approach, the performance robustness in practical maintenance plan optimization can be evaluated.