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[SEAOC] Re: [SEAOC] Re: [SEAOC] Footings' Tie Beams

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In a message dated 96-06-16 16:28:24 EDT, you write:

>Well we don't have the "vide sanitaire" here in Lebanon but I now that they
>undesirable in seismic zones because they mean short columns and failures
>occur in 
>the latest algerian EQ.

What is the "vide sanitaire" (sanitary void?)?

Janah A. Risha, S.E.