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RE: "Sloshing Effects"

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This is on the list of concerns to address as "New Business" by the seismic
subcommittee for ACI 350.3. The equations for dams will be reviewed but I'm
not aware of any other references currently available.  

> -----Original Message-----
> From: Mark Gilligan [mailto:MarkKGilligan(--nospam--at)]
> Sent: Saturday, February 03, 2001 1:38 AM
> To: INTERNET:seaint(--nospam--at)
> Subject: RE: "Sloshing Effects"
> The various provisions on sloshing were developed in the 
> context of tanks
> and if you attempt to apply then to hydraulic structures that 
> are wide the
> results seem to blow up.
> Some work has been done on dams but the results are somewhat 
> dependant on
> the dam geometry.  The question is, are there any 
> recommendations on how to
> deal with sloshing for wide structures where the depth of the 
>  water is
> small compared to the width of the water?
> Mark Gilligan
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++
> > 
> This won't help you immediately, but in the near future the 
> ACI website
> should have the proposed ACI 350.3, "Standard Practice for the Seismic
> Design of Liquid-Containing Concrete Structures" posted for 
> public comment.
> (Go to "", click on Committees, then 
> Standardization Actions.)
> It
> won't be "official" until comments are received and reviewed 
> for potential
> revisions. I have been told that the document is currently 
> being formatted
> to be posted on the website. This document will be based on 
> the 1994 UBC
> force levels and seismic methods - once published the committee will
> immediately work on an update, probably based on IBC 2000. 
> The draft of the proposed ACI 350 "Code Requirements for Environmental
> Engineering Concrete Structures" is also due to be posted for public
> comment.  
> PCA is also preparing a publication to address seismic design of
> liquid-containing structures, which will partly be based on 
> ACI 350.3 but
> will also discuss applicability of other codes. But this is 
> just in draft
> stages and won't be completed until 350.3 is finalized. 
> <