Cinderblock Design for High Seismic Zones

[RockEngineer]

Does anyone have a good reference for cinderblock design and details including reinforcing, door and window lentils, etc for high seismic areas. I usually tend toward poured concrete but I have some customers who really want a block foundation. I know they are used a lot in low seismic areas but I don't see many of them in high seismic areas because of the reinforcing and grouting requirements.

Thanks.

 

[rholder98]

Others will have a lot more to offer, but I find a lot of useful information at

http://www.ncma.org