] [Thread] [Date] [Author]

["Harold Sprague" <spraguehope(--nospam--at)hotmail.com>]

Scott,
Those couplers are very large in diameter.  You may not be able to get the 
cover.

We block up a lot of openings when we do blast mitigation for military 
structures.  We just go with simple connections (dowl for the shear).  The 
wall panels were originally designed for punched openings (windows)  There 
was no continuity when they were constructed.  I don't see the need for 
continuity with the infill.  If the window punched opening (generally 
inadequate jamb) is not adequate for the applied load, we reinforce the 
frame with structural steel framing.

Regards,
Harold Sprague





> From: "Haan, Scott M POA" <Scott.M.Haan(--nospam--at)poa02.usace.army.mil>
> Reply-To: <seaint(--nospam--at)seaint.org>
> To: <seaint(--nospam--at)seaint.org>
> Subject: RE: Concrete or Masonry Infill
> Date: Thu, 17 Nov 2005 08:08:54 -0900
>
> They have mechanical couplers capable of developing the 125% strength of 
> the
> bars.  Have them chip out the block and splice to the existing with 
> couplers.
>
>
>
>
>
>
> ________________________________
>
> From: Hood, Matthew O. [mailto:HoodMO(--nospam--at)ci.anchorage.ak.us]
> Sent: Thursday, November 17, 2005 7:27 AM
> To: seaint(--nospam--at)seaint.org
> Subject: Concrete or Masonry Infill
>
>
>
> I'd like to solicit opinions on approaches for infilling openings in
> reinforced concrete or masonry shear walls such that the existing wall and
> infill will act as one unit. To develop the capacities of the reinforcement
> with epoxy seems to be a commonly used method but how does this develop the
> load into the existing reinforcement? If the new rebar is not fully lap
> spliced with the existing rebar can the new section of wall be considered 
> as
> being effective?
>
>
>
> The only way I've been able to think of doing it is to dowel the new bars
> into the existing wall far enough to develop a lap splice with the existing
> bars. That requires an awfully deep hole, however, and seems prohibitively
> difficult to construct. Any suggestions are appreciated.
>
>
>
> Thanks,
>
> -Matt Hood

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