Seismic Retrofit Design
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It is not recommended that the information presented on this website be used by anyone to design his or her own retrofit. A contractor fully trained in retrofit engineering principles or a qualified structural engineer should always be consulted before any retrofit work takes place.

Engineer examines damage.Here we explain the basic design principles of seismic retrofit and condense the available technical information so that it can be easily understood and used in a practical way. The amount of engineering research that has been published is vast, especially since the 1994 Northridge Earthquake.

Click here to see a list of the sources from which this website's information is compiled.

 

The following articles are intended to be read in the order in which they are presented. They are presented as separate articles for the sake of easy reference .  Click anywhere on a yellow banner to go to that article.
Basic Retrofit Engineering Principles
Three Components of Retrofit Design
Bolting: attachment of the mudsill to the foundation
Shear Walls: bracing the cripple walls
Shear Transfer Ties: attachment of the floor framing
UCBC Retrofit Building Code
BuiltByNOF

Bay Area Retrofit
Residential and Commercial Seismic Retrofits
Structural Evaluations and Hazard Analysis
Howard Cook: 510-418-1676
Office and Fax: 510-548-1111
Email Howard Cook at bayarearetrofit@aol.com
E-mail Jeff Bailey at jeffatretrofit@aol.com
This website and the articles within are copyrighted by Howard Cook
updated: March 20, 2008