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RE: Concrete or Masonry Infill

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Matt,

 

Difficult, but not prohibitively.  It takes someone who is familiar with drilling concrete.  Hand-held drilling equipment is probably not the way to do it.  There are concrete drilling contractors in So. CA.; maybe in AK too?  Also check with some of the epoxy anchor suppliers in your area.  Hilti has drilling experts on staff – they can be very helpful with selecting bits and directing you to the appropriate contractor.  I like to work with a construction fastener supplier in our area [Progressive Fastening Systems] – they have helped to solve many drilling and connector problems on my projects.  If you were in this area I’d send you there.

 

Nels Roselund, SE

South San Gabriel, CA

njineer(--nospam--at)att.net


From: Hood, Matthew O. [mailto:HoodMO(--nospam--at)ci.anchorage.ak.us]
Sent: Thursday, November 17, 2005 6:20 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Concrete or Masonry Infill

 

Nels,

 

Do you know if it’s fairly easy for a contractor to accomplish this? I’ve heard quite a bit of complaining when I suggested it so I assumed that it was prohibitively difficult.

 

-Matt

 

 

 

 

-----Original Message-----
From: Nels Roselund [mailto:njineer(--nospam--at)att.net]
Sent: Thursday, November 17, 2005 1:17 PM
To: seaint(--nospam--at)seaint.org
Subject: RE: Concrete or Masonry Infill

 

Matt,

 

The way you’ve thought of is the way I’d do it.

 

Nels

 

Nels Roselund, SE

South San Gabriel, CA

njineer(--nospam--at)att.net


From: Hood, Matthew O. [mailto:HoodMO(--nospam--at)ci.anchorage.ak.us]
Sent: Thursday, November 17, 2005 8:27 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