Evaluating Seismic Resilience and Functionality of Steel Structures Isolated with FPB

Enhancing the seismic resilience of structures is a key objective in earthquake engineering. One of the most effective techniques for seismic retrofitting is the implementation of Friction Pendulum Bearings (FPBS), which improve energy dissipation and reduce earthquake-induced forces. This study evaluates the functionality and resilience of a steel structure retrofitted with FPB and compares it with a similar fixed-base structure to assess the effectiveness of seismic isolation. The resilience analysis is performed using fragility analysis using SeismoStruct software, considering far- and near-field earthquake scenarios to evaluate key response parameters such as structural and non-structural losses, and consequently performance and seismic resilience index. The results indicate that FPB significantly reduces seismic demand on the structure, leading to controlled displacements, and improved fragility and resilience. This research highlights the advantages of using FPB for seismic retrofitting, providing valuable insights for engineers and researchers seeking to enhance the resilience of steel structures against earthquakes. The findings contribute to the development of improved design strategies for earthquake-resistant buildings.

کلیدواژه ها:

Seismic Resilience ، Friction Pendulum Bearing ، Fragility ، Loss ، Functionality