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A sustainable approach to mitigating the seismic vulnerability of built heritage requires strengthening systems that ensure long-term effectiveness while allowing continuous monitoring of their performance and potential deterioration. In this context, Fibre Bragg Grating (FBG) optical sensors, engraved in optical fibres, show great potential. This study presents a shake table test campaign conducted on a large-scale rubblestone masonry structure retrofitted with stainless steel bands equipped with FBG sensors. FBG sensors were thus integrated into the strengthening system, rendering it self-sensing. By complementing other measurement techniques, the FBG sensors established a smart sensing network that proves advantageous for both continuous structural health monitoring and periodic condition assessment. This approach enables early detection of potential issues and facilitates optimized maintenance strategies, enhancing the sustainability and resilience of retrofitted structures.

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An Integrated Technology for Seismic Retrofitting and Monitoring Masonry Structures Using Stainless Steel Bands and Fibre Bragg Grating (FBG) Sensors

  • 会议论文

  • 发表日期：

    2025年

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  • Stefano De Santis,
  • Michele Arturo Caponero,
  • Domenico Liberatore,
  • Ivan Roselli,
  • Alessandro Vari,
  • Gianmarco de Felice

摘要

A sustainable approach to mitigating the seismic vulnerability of built heritage requires strengthening systems that ensure long-term effectiveness while allowing continuous monitoring of their performance and potential deterioration. In this context, Fibre Bragg Grating (FBG) optical sensors, engraved in optical fibres, show great potential. This study presents a shake table test campaign conducted on a large-scale rubblestone masonry structure retrofitted with stainless steel bands equipped with FBG sensors. FBG sensors were thus integrated into the strengthening system, rendering it self-sensing. By complementing other measurement techniques, the FBG sensors established a smart sensing network that proves advantageous for both continuous structural health monitoring and periodic condition assessment. This approach enables early detection of potential issues and facilitates optimized maintenance strategies, enhancing the sustainability and resilience of retrofitted structures.