Calculating costs and benefits of investing in retrofitting

1. Vitor Silva
GEM Foundation, Pavia, Italy
Calculating costs and benefits of investing in retrofitting

2. Calculating costs and benefits of investing in retrofitting
Region of interest: Nepal
1.
2221 locations
2.
9144 assets
3.
5 taxonomies
4.
≈140.000 km2
5.
Number, area, economic value, retrofitting cost.

3. Calculating costs and benefits of investing in retrofitting
Scenario Risk Calculator
Magnitude: 7.0 Mw, Mean loss: 8.7 billion EUR, Standard deviation: 2.1 billion EUR

4. Calculating costs and benefits of investing in retrofitting
Scenario Damage Calculator
Magnitude: 7.0 Mw
Damage distribution per asset
Total damage distribution
Damage distribution per taxonomy

5. Calculating costs and benefits of investing in retrofitting
Scenario Damage Calculator
Magnitude: 7.0 Mw

6. Calculating costs and benefits of investing in retrofitting
Benefit/Cost Ratio Calculator
Pre-code and retrofitted vulnerability functions.
Original vulnerability model
Retrofitted vulnerability model

7. Calculating costs and benefits of investing in retrofitting
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EAL-C
EAL-R
Average exceedance annual loss (dollars)

8. Calculating costs and benefits of investing in retrofitting
Benefit/Cost Ratio Calculator
Benefit/cost ratio, AAL(original) and AAL(retrofitted).

9. Calculating costs and benefits of investing in retrofitting
Benefit/cost ratio, AAL(original) and AAL(retrofitted).

10. Calculating costs and benefits of investing in retrofitting
Benefit/cost ratio, AAL(original) and AAL(retrofitted).

11. Calculating costs and benefits of investing in retrofitting
Seismic hazard map for 475 years

12. Calculating costs and benefits of investing in retrofitting
Vulnerability model for structural components

13. Calculating costs and benefits of investing in retrofitting
Vulnerability model for structural components

14. Calculating costs and benefits of investing in retrofitting
Loss exceedance curves

15. Calculating costs and benefits of investing in retrofitting
Optimal design map

16. Calculating costs and benefits of investing in retrofitting
Optimal design map

17. Calculating costs and benefits of investing in retrofitting
2012 Mw=5.9 Emilia-Romagna earthquake
24 fatalities
400 injured
20,000 homeless
$17.4B direct losses

18. Calculating costs and benefits of investing in retrofitting
Thank you.

19. Except where otherwise noted, thiswork is licensed under:
creativecommons.org/licenses/by-nc-nd/4.0/
Please attribute to the GEM Foundation with a link to - www.globalearthquakemodel.org