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RE: Concrete or Masonry Infill

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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