Slide 7 of 10
Notes:
MANY BUILDINGS NEED RETROFITTING
- California Government Code Section 8897 says, “… there are approximately 1,200,000 (1.2 million) homes in the State of California which may not be bolted or anchored to their foundations or do not have adequate cripple wall bracing.”
- These homes were generally built prior to the 1950’s and can represent one-half of the existing housing stock.
- Contractors who know how to do the work correctly will be in great demand!
- Many houses need retrofitting
- Because the Northridge earthquake in January 1995 caused more than 48,000 housing units to become uninhabitable in Los Angeles and Ventura counties.
- Previously the Loma Prieta earthquake in October 1989 caused more than 16,000 housing units to become uninhabitable throughout the Monterey and San Francisco Bay areas. Approximately one-fourth of the total uninhabitable housing units in the Loma Prieta earthquake were buildings with one-to-four dwellings.
- What does this course cover?
- This course is aimed primarily at the typical homes that were damaged in these two large earthquakes – small wood-framed, unbraced houses.
- Deals primarily with prescriptive methods, or non-engineered methods, of retrofit
