Adjustable anchors shall be 5 mm 3/16 inch diameter steel wire,
triangular-shaped. Anchors attached to steel shall be 8 mm 5/16 inch
diameter steel bars placed to provide 2 mm 1/16 inch play between flexible
anchors and structural steel members. Spacers shall be welded to rods and
columns. Equivalent welded-on steel anchor rods or shapes standard with
the flexible-anchor manufacturer may be furnished when approved. Welds
shall be cleaned and given one coat of zinc-rich touch up paint.
2.11.5
Bar Positioners
Bar positioners, used to prevent displacement of reinforcing bars during
the course of construction, shall be factory fabricated from 9 gauge steel
wire or equivalent, and coated with a hot-dip galvanized finish. Not more
than one wire shall cross the cell.
2.12
JOINT REINFORCEMENT
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NOTE: Location of horizontal joint reinforcement
should be shown on the drawings. Reinforcement will
have one wire in each mortar bed. Truss-type joint
reinforcement will not be used. Adjustable joint
reinforcement assemblies may be used in certain
types of construction where it is feasible to
construct one wythe independent of the other. If
the type of design does not permit this type of
construction, delete the sentences pertaining to
adjustable joint reinforcement assemblies.
Various combinations of wire sizes are available and
are usually designated as follows:
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Long. wires
Cross wires
Standard
3.8 mm
3.8 mm
Heavy Duty
4.8 mm
3.8 mm
Extra Heavy Duty
4.8 mm
4.8 mm
Long. wires
Cross wires
Standard
9 gauge (0.1483 inch)
9 gauge
Heavy Duty
3/16 inch (0.1875 inch)
9 gauge
Extra Heavy Duty
3/16 inch
3/16 inch
Reinforcement made with 4.2 mm (8 gauge) wire is
considered special and is not available from all
manufacturers.
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Joint reinforcement shall be factory fabricated from steel wire conforming
to ASTM A 82, welded construction. Tack welding will not be acceptable in
reinforcement used for wall ties. Wire shall have zinc coating conforming
to ASTM A 153/A 153M, Class B-2. All wires shall be a minimum of [9]
[_____] gauge. Reinforcement shall be ladder type design, having one
longitudinal wire in the mortar bed of each face shell for hollow units and
one wire for solid units. Joint reinforcement shall be placed a minimum of
SECTION 04200
Page 33
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