Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

Re: concrete parapet

[Subject Prev][Subject Next][Thread Prev][Thread Next]
Does that apply to swimming pool floors and walls, where crack control
requirements are more stringent?

Hasan Hindawi

----- Original Message -----
From: Roger Davis <rdavis(--nospam--at)>
To: <seaint(--nospam--at)>
Sent: ÇáÎãíÓ, 04 äæÝãÈÑ, 1999 12:43 AM
Subject: RE: concrete parapet

> In the October 1984 issue of Concrete International there was a chart that
> indicated that for a control joint spacing of 60 feet (end of chart) you
> should use .004 * AREA.  The author said this may not be adequate for the
> wall is exposed to the full freeze-thaw cycle.  I read someplace that the
> Wisconsin DOT uses .007 * AREA for highways with out control joints, but
> most DOT's use .006 * AREA.  I don't think I would use less than .007 *
> unless I found a good source that indicated a lower value worked.
> Roger Davis
> SDS Architects, Inc
> 205 N. Dewey Street
> Eau Claire, WI 54703
> 715-832-1605
> rdavis(--nospam--at)
> -----Original Message-----
> From: Randy Hamilton P.E. [mailto:rh-eng(--nospam--at)]
> Sent: Wednesday, November 03, 1999 4:05 PM
> To: Seaint
> Subject: concrete parapet
> I am currently reviewing a project with cast in place concrete parapets
> integral with thicker concrete walls and a concrete roof.  This structure
> located in high elevation snow country.  I am concerned about longitudinal
> temperature and shrinkage reinforcement that should be included in the
> parapet.  The parapet is likely to have over 100 ft. run without control
> joints.  With the temperature cycle that the parapet is likely to go thru
> and the continuous restraint to the wall and roof is there additional
> reinforcement recommendations beyond that recommended for typical
> wall reinforcement of .002xArea.
> Can anyone recommend a reference dealing with this subject?
> Thanks in advance for your help.
> Randy Hamilton, P.E.