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February 21, 2026Procedia Structural IntegrityOpen Access

Downtime-based seismic assessment: insights from new and retrofitted RC buildings in Italy

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Authors

GMGianrocco MucederoIstituto Universitario di Studi Superiori di PaviaRCRita CoutoIstituto Universitario di Studi Superiori di PaviaBYBesim YükselenIstituto Universitario di Studi Superiori di Pavia

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Overview

Examines seismic performance and downtime in new and retrofitted buildings, highlighting implications for code improvement.

Key Points

  • The aim is to analyze the seismic performance of new and retrofitted RC buildings in terms of downtime and economic losses.
  • Evaluated four newly designed RC residential buildings using NTC-18 standards.
  • Applied a component-based loss assessment methodology with Multiple Stripe Analysis.
  • Analyzed a retrofitted RC school building from the 1960s-70s under a high seismic hazard scenario.
  • Compared four retrofit strategies regarding median downtime for re-occupancy.
  • New buildings showed improved performance in expected annual downtime compared to retrofitted ones.
  • Retrofit strategies significantly impacted median downtime days for the existing school building.
  • Findings indicate a critical need for downtime-based metrics in seismic design codes.

Cite This Study

Mucedero et al. (2026) studied this question.

synapsesocial.com/papers/69994b01873532290d01f413https://doi.org/10.1016/j.prostr.2025.12.249
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