Abstract
Purpose: Transport infrastructure resilience is of paramount importance for societies, therefore its quantification is urgently needed. A resilience assessment framework based on well-informed resilience indices is presented and applied for assessing the resilience of representative bridges exposed to earthquakes.
Design/methodology/approach: The framework quantifies the robustness of bridges against different seismic hazard scenarios, by using realistic fragility functions and the rapidity of the recovery and/or retrofitting after the occurrence of a certain degree of damage, based on realistic restoration functions.
Findings: Two different approaches for the modeling of the restoration tasks are examined. Both direct losses due to structural damage and indirect losses due to traffic disruption are estimated.
Originality/value: A new cost-based resilience index is introduced and alternate approaches for expressing the restoration strategies are examined and assessed. The results facilitate owners to enhance cost-based resilience management toward more resilient infrastructure.
Design/methodology/approach: The framework quantifies the robustness of bridges against different seismic hazard scenarios, by using realistic fragility functions and the rapidity of the recovery and/or retrofitting after the occurrence of a certain degree of damage, based on realistic restoration functions.
Findings: Two different approaches for the modeling of the restoration tasks are examined. Both direct losses due to structural damage and indirect losses due to traffic disruption are estimated.
Originality/value: A new cost-based resilience index is introduced and alternate approaches for expressing the restoration strategies are examined and assessed. The results facilitate owners to enhance cost-based resilience management toward more resilient infrastructure.
| Original language | English |
|---|---|
| Pages (from-to) | 209-222 |
| Number of pages | 14 |
| Journal | International Journal of Disaster Resilience in the Built Environment |
| Volume | 12 |
| Issue number | 2 |
| Early online date | 22 Sept 2020 |
| DOIs | |
| Publication status | Published - 15 Mar 2021 |
Keywords
- Resilience
- Infrastructure
- Vulnerability
- Disaster mitigation
- Earthquakes
- Restoration
- Bridges
- Direct and indirect losses
- Transport networks
