"Provide anchors and ties for cavity walls with
integral drip located in the cavity." Do not use
corrugated metal ties in cavity walls; they are very
thin and prone to corrosion. These ties are
generally used in residential construction.
Z-shaped ties should only be specified when bonding
walls constructed with solid units (not less than 75
percent of the gross cross-sectional area being
solid). Rectangular ties may be used with either
solid or hollow units.
Adjustable wall ties may be used in areas of low
seismic activity when the design wind speed is less
than 160 km/hr (100 mph); designer must follow the
guidance provided in TI 809-04 Seismic Design for
Buildings for any seismic design. Adjustable wall
ties are normally used when constructing one wythe
independent of the other. The preferred method of
construction, however, is to bring the wythes up
together. Delete the sentences pertaining to
adjustable ties when they are not permitted.
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Wall ties shall be rectangular-shaped or Z-shaped fabricated of 5 mm 3/16
inch diameter zinc-coated steel wire. Rectangular wall ties shall be no
less than 100 mm 4 inches wide. Wall ties may also be of a continuous type
conforming to paragraph JOINT REINFORCEMENT. Adjustable type wall ties, if
approved for use, shall consist of two essentially U-shaped elements
fabricated of 5 mm 3/16 inch diameter zinc-coated steel wire. Adjustable
ties shall be of the double pintle to eye type and shall allow a maximum of
13 mm 1/2 inch eccentricity between each element of the tie. Play between
pintle and eye opening shall be not more than 2 mm 1/16 inch. The pintle
and eye elements shall be formed so that both can be in the same plane.
2.11.3
Dovetail Anchors
Dovetail anchors shall be of the flexible wire type, 5 mm 3/16 inch
diameter zinc-coated steel wire, triangular shaped, and attached to a 12
gauge 12 gauge or heavier steel dovetail section. These anchors shall be
used for anchorage of veneer wythes or composite-wall facings extending
over the face of concrete columns, beams, or walls. Cells within vertical
planes of these anchors shall be filled solid with grout for full height of
walls or partitions, or solid units may be used. Dovetail slots are
specified in Section [03300A CAST-IN-PLACE STRUCTURAL CONCRETE][03300N
CAST-IN-PLACE CONCRETE].
2.11.4
Adjustable Anchors
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NOTE: Adjustable anchors will be used to anchor
masonry to structural steel columns or beams. The
fixed portion of the anchors (steel anchor rods)
will be welded to the structural steel member. In
instances where standard anchors are not available,
such as when anchoring masonry to a steel beam that
is offset from the masonry wall line, anchors will
be detailed on the drawings.
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SECTION 04200
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