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Re: Masonry Control Joints/Codal Requirements!

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The current revision of the ACI codes is 1999.  I recommend you review them.

--- syed faiz ahmad <syedfaiz23(--nospam--at)hotmail.com> wrote:
> Jim/Daryl,
>
> The relevant Codes are:
>
>   1.  ACI 530-88/ASCE 5-88:
>       Building Code Requirements for Masonry
>       Structures.
>
>   2.  ACI 530R-88/ASCE 5-88:
>       Commentary on Building Code Requirements
>       for Masonry Structures.
>
>   3.  ACI 530.1R-88/ASCE 6-88:
>       Specifications for Masonry Structures
>
>   4.  Uniform Building Code (UBC)- 94
>
> I have checked all these codes & there is no such requirements in them for
> provision of vertical rebars in the adjoining cells of the 'control Joints'.
>
> However, it is a recommended detail to provide vertical rebars in the
> adjoining cells around openings & reentrant corners.
>
> Moreover, for seismic/engineered masonry, it is also a recommended practice
> to provide vertical rebars (besides joint reinforcements) to tie with the
> 'bond beams' & the 'bracing beams' at any intermediate levels, if the
> heights are larger.
>
> Other than these there is no other requirements in the Codes perse.
>
> I hope it helps. Regards,
>
> SYED FAIZ AHMAD; MENGG, MASCE
> SENIOR STRUCTURAL ENGINEER
> SAUDI OGER LTD
> RIYADH, SAUDI ARABIA,.
> However, for
>
>
> >From: Daryl Richardson <h.d.richardson(--nospam--at)shaw.ca>
> >Reply-To: <seaint(--nospam--at)seaint.org>
> >To: seaint(--nospam--at)seaint.org
> >Subject: Re: Masonry Control Joints
> >Date: Fri, 01 Mar 2002 09:33:46 -0700
> >
> >Jim,
> >
> >	I'm not sure what your code requirements are but I would consider it
> >good practice to reinforce the end of the wall.  In fact, I would fill
> >the two end cores and place a #5 in each core.
> >
> >				Regards,
> >
> >				H. Daryl Richardson
> >
> >Jim Kestner wrote:
> > >
> > > This may sound like a basic question, but I will ask it anyhow.
> > >
> > > I have seen many details with a vertical rebar on each side of a masonry
> > > control joint. If the wall spans vertically between supports, what is
> >the
> > > reason for these bars? Is it required to stiffen the edge of the wall
> > > against out of plane loading? Is it the end of a shear wall because of
> >the
> > > discontinuity of the joint?
> > >
> > > Is there a particular code that requires this? Is it necessary only in
> > > seismic zones?
> > >
> > > Jim Kestner
> > > Green Bay, WI
> > >
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>
>
> SYED FAIZ AHMAD; MENGG, MASCE
> SENIOR STRUCTURAL ENGINEER
> SAUDI OGER LTD
> RIYADH, SAUDI ARABIA.
>
>
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