Unlocking Physical Resilience Capacities of Building Systems: An Enhanced Network Analysis Approach

Fostering the physical resilience of building systems and ensuring their functionality during disasters is paramount. To unlock the physical resilience capacities of building systems, this study applied an enhanced network-based approach comprising four steps: (1) classifying the building systems and developing a comprehensive building system network can be achieved by treating building components as nodes and their functional, resource, information, and physical interdependence as connections; (2) characterizing the physical resilience capacities of building systems through robustness and redundancy; (3) setting up both deliberate and random attack scenarios and revealing the robustness of building systems by using the relative size of maximum connected subgraphs and global network efficiency; and (4) proposing a novel redundancy index to reveal the capacities to maintain function in the face of disruptions. A real-world case study was conducted to analyze the physical resilience of a building system under disruptions, illustrating the feasibility of the proposed approach. The case study identified several key systems and operation strategies for enhancing the resilience of building systems. In summary, the proposed approach contributes to a comprehensive understanding of the building system and quantitatively reveals its robustness and redundancy capacities. Practically, these findings offer valuable insights and practical strategies for facility managers to foster resilient and sustainable operations during building operations.

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