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RE: Openings in Existing Masonry
- To: "'seaint(--nospam--at)seaint.org'" <seaint(--nospam--at)seaint.org>
- Subject: RE: Openings in Existing Masonry
- From: "George Richards P.E." <george(--nospam--at)borm.com>
- Date: Tue, 19 Nov 2002 10:25:48 -0800
not. The stuff has dried and shrank already so why do I need shrinkage
Richards, P. E.
How do you comply with this for existing
----- Original Message -----
Sent: Monday, November 18, 2002 3:51
Subject: RE: Openings in Existing
Paul, I hope this helps...Recently, we have had several
requests to enlarged openings in concrete walls (mainly to meet the
egress requirement) in residential one and two family dwellings. I
believe we require two # 5's around all window and door
openings, extending beyond the corners at least 24". Reference
1994 UBC 1914.3.7 This is
seismic zone 4. I'm curious to read what other parts of the country
What is the consensus regarding reinforcing
around an opening cut into an existing concrete masonry wall?
(fairly new construction, not URM) I am considering small openings
less than four feet.
The code requirement for steel around the
opening extending beyond is empirical, and is for all four sides. I
have seen angles top and bottom with one leg cut away extending beyond the
opening both with and without a vertical member each side as well as inset
frames without extension beyond the opening.
Any input regarding current practice, or