SYNER-G: Systemic Seismic Vulnerability and Risk Analysis for Buildings, Lifeline Networks and Infrastructures Safety Gain
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WP3: Fragility functions of elements at risk

WP3 Leader: NGI

The work which will be performed within this work package is going to:

  • Compile the existing fragility functions for the various elements at risk including buildings, and elements within utility lifeline networks and transportation infrastructures.
  • Adapt, improve and, if necessary, develop new fragility functions for these elements considering their distinctive European features and typological characteristics.
  • Harmonize the fragility functions for their systematic incorporation in the following WP.

Appropriate fragility curves/functions or surfaces will be proposed for each element at risk (buildings, building aggregates, utility networks, transportation components infrastructures and critical facilities) according to the typological features of European construction and practice. The fragility relationships will be proposed after an extensive review of existing studies, considering the inventory and typology of elements at risk in Europe, together with validation studies (for example using real data when available in Europe from recent strong earthquakes). In some cases the fragility curves will be appropriately modified and adapted, while in other cases new fragility functions will be developed (for example for masonry buildings and building aggregates, for the electric power substations as a combination of building and installations fragilities or for tunnels, underground structures and gravity quay walls). The fragility functions will give an estimation of the damage and therefore direct losses associated for a given element at risk. Damage-functionality relationships will also be proposed in conjunction with the fragility functions in order to assess the indirect losses associated with an earthquake event.

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