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Re: FLAT SLAB REINFORCEMENT REQUIREMENT

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In a message dated 5/4/99 6:25:38 PM Pacific Daylight Time, taco1(--nospam--at)home.com 
writes:

>  have a question about the '97 UBC requiring that positive moment
>  reinforcement be continuous in all column strips (bottom bars).  The '94
>  UBC allowed 50% of the bars to be cut-off, the '97 does not.  I looked
>  it up in ACI 318-95 and found figure 13.3.8 to show the same thing as
>  the '97 UBC.  The reasoning behind this was to provide a way for the
>  load to redistribute to adjacent columns in the case of a single
>  punching shear failure.  So I take this as saying I need to continue my
>  bottom bars through regardless of the different span lengths?  This
>  seems too conservative...?
>  
>  Any help or clarification would be appreciated.
>  
>  David Taquino, EIT
>  Libby Engineers, Inc.
>  San Diego, CA
>  
I think it is a good insurance.....
Antonio S. Luisoni
Consulting SE