1. Bay Area Earthquake Alliance Meeting 22 July 2010 New Developments in Residential Retrofit Strategies Kelly Cobeen, S.E. Wiss Janney Elstner Associates, Inc.

2. New Developments in Residential Retrofit Strategies - 22 July 2010 Outline Wood Frame Soft Story Retrofits Anchorage to Foundations and Cripple Wall Bracing

3. New Developments in Residential Retrofit Strategies - 22 July 2010 CAPSS

4. New Developments in Residential Retrofit Strategies - 22 July 2010 What Makes the Building Vulnerable?

5. New Developments in Residential Retrofit Strategies - 22 July 2010 What Makes the Building Vulnerable?

6. New Developments in Residential Retrofit Strategies - 22 July 2010 What Makes the Building Vulnerable?

7. New Developments in Residential Retrofit Strategies - 22 July 2010 The CAPSS Report Characteristics, uses, locations of these buildings The risk in doing nothing The consequences of retrofitting, including performance and financial impact Options to reduce the risk The recommended program

8. New Developments in Residential Retrofit Strategies - 22 July 2010 Bracing Elements for Retrofit Plywood or OSB shear walls Steel moment frames Cantilevered columns Proprietary systems

9. New Developments in Residential Retrofit Strategies - 22 July 2010 Plywood or OSB Shear Walls

10. New Developments in Residential Retrofit Strategies - 22 July 2010 Bracing Elements for Retrofit Plywood or OSB shear walls Steel moment frames Cantilevered columns Proprietary systems

11. New Developments in Residential Retrofit Strategies - 22 July 2010 Steel Moment Frames

12. New Developments in Residential Retrofit Strategies - 22 July 2010 Cantilevered Columns New Cantilevered Columns Existing Wood New Foundation

13. New Developments in Residential Retrofit Strategies - 22 July 2010 Cantilevered Columns

14. New Developments in Residential Retrofit Strategies - 22 July 2010 Proprietary Bracing Systems

15. New Developments in Residential Retrofit Strategies - 22 July 2010 CAPSS Conclusions

16. New Developments in Residential Retrofit Strategies - 22 July 2010 CAPSS Conclusions

17. New Developments in Residential Retrofit Strategies - 22 July 2010 Coming Soon ATC-71-1 PROJECT: Development of Simplified Guidance for Seismic Rehabilitation of Weak-Story Wood- Frame Buildings City of San Francisco proposed mandatory retrofit ordinance and ballot measure

18. New Developments in Residential Retrofit Strategies - 22 July 2010 Anchorage to Foundation & Cripple Wall Bracing

19. New Developments in Residential Retrofit Strategies - 22 July 2010 Anchorage to Foundation & Cripple Wall Bracing

20. New Developments in Residential Retrofit Strategies - 22 July 2010 What Makes the Building Vulnerable?

21. New Developments in Residential Retrofit Strategies - 22 July 2010 What Makes the Building Vulnerable?

22. New Developments in Residential Retrofit Strategies - 22 July 2010 Retrofit Methods

23. New Developments in Residential Retrofit Strategies - 22 July 2010 Retrofit Methods

24. New Developments in Residential Retrofit Strategies - 22 July 2010 In-Process: California Adoption of IEBC Appendix Chapter A3

25. New Developments in Residential Retrofit Strategies - 22 July 2010 In-Process: California Adoption of IEBC Appendix Chapter A3

26. New Developments in Residential Retrofit Strategies - 22 July 2010 In-Process: California Adoption of IEBC Appendix Chapter A3

27. New Developments in Residential Retrofit Strategies - 22 July 2010 In-Process: CEA Residential Retrofit Brace and Bolt (R2B2) Program Manager RFQ

28. New Developments in Residential Retrofit Strategies - 22 July 2010 In-Process: CEA Residential Retrofit Brace and Bolt (R2B2) Program Manager RFQ Web portal Screen and track retrofit contractors Education source for local authorities Education source and resources for homeowner Financial incentive for homeowner Quality review process for installed retrofits Check eligibility of homes Demonstration retrofits

29. New Developments in Residential Retrofit Strategies - 22 July 2010 Photo Credits Raymond B. Seed, Courtesy of National Information Service for Earthquake Engineering (from CAPSS report) Anderson Niswander Construction Ron Gallagher FEMA P-593 Kelly Cobeen

30. New Developments in Residential Retrofit Strategies - 22 July 2010 Questions & Comments?