Work

Seismic resilience assessment of building structures considering structural damage modes

Year: 2026

Type: article

Abstract: Building structure is composed of thousands of various components, and its damage development path and damage modes are complex and diverse. The variation in structural damage modes leads to degradation in structural functionality, consequently influencing the overall seismic resilience of the system. Accordingly, the progressive and intricate nature of damage evolution must be explicitly incorporated into the assessment of structural seismic resilience. Firstly, this paper uses the complex network theory to describe the performance loss under different structural damage modes. Next, by continuously updating the structural functional degradation and repair time during the component rehabilitation, a seismic performance recovery function is obtained, and a new structural seismic resilience index, reflecting the damage modes of structural system, is proposed. Finally, four structural damage modes (Modes A, B, C, and D) are designed based on the damage sequence of energy-dissipating components, and the structural seismic resilience is compared. Results show that structural damage modes can affect structural seismic resilience, and the differences in seismic resilience become more significant as structural damage develops. When the seismic action is large, compared with Mode C, Mode A reduces the performance loss by 48.8%, shortens the repair time by 18.8% and enhances the resilience by 190.2%.

Source: Scientific Reports

DOI: 10.1038/s41598-026-68724-y