HomeMy WebLinkAbout10 22 13 - Wire Mesh PartitionsBEARDSLEY DESIGN ASSOCIATES
CORNELL NCP WIRE MESH PARTITIONS
STANDARD SPECIFICATIONS NOVEMBER 2, 2012
SECTION 102213 WIRE MESH PARTITIONS
PART 1 GENERAL
1.1 DEFINITIONS
A. As defined in ASTM E 2016:
1. Intermediate Crimp: Wires pass over one and under the next adjacent
wire in both directions, with wires crimped before weaving and with extra
crimps between the intersections.
2. Lock Crimp: Deep crimps at points of the intersection that lock wires
securely in place.
1.2 PERFORMANCE REQUIREMENTS
A. Delegated Design: Design wire mesh units, including comprehensive
engineering analysis by a qualified professional engineer, using performance
requirements and design criteria indicated.
1.3 SUBMITTALS
A. Product Data: For each type of product indicated. Include construction
details, material descriptions, dimensions of individual components and
profiles, and finishes for wire mesh items.
B. Shop Drawings: Include plans, elevations, sections, details, and attachments
to other work.
1. Include clearances required for operation of doors.
1.4 QUALITY ASSURANCE
A. Source Limitations: Obtain wire mesh items from single source from single
manufacturer.
B. Welding Qualifications: Qualify procedures and personnel according to the
following:
1. AWS D1.1/D1.1M, "Structural Welding Code Steel ."
2. AWS D1.3, "Structural Welding Code Sheet Steel ."
1.5 DELIVERY, STORAGE, AND HANDLING
A. Deliver wire mesh items with cardboard protectors on perimeters of panels
and doors and with posts wrapped to provide protection during transit and
Projectsite storage. Use vented plastic.
B. Inventory wire mesh partition door hardware on receipt and provide secure
lockup for wire mesh partition door hardware delivered to Project site.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP WIRE MESH PARTITIONS
STANDARD SPECIFICATIONS NOVEMBER 2, 2012
1. Tag each item or package separately with identification and include basic
installation instructions with each item or package.
C. Deliver keys to Owner by registered mail or overnight package service.
1.6 PROJECT CONDITIONS
A. Field Measurements: Verify actual dimensions of construction contiguous
with wire mesh units by field measurements before fabrication.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, available
manufacturers offering products that may be incorporated into the Work
include, but are not limited to, the following:
1. Acorn Wire & Iron Works, Inc.
2. American Woven Wire Corporation.
3. California Wire Products Corporation.
4. Central Wire and Iron.
5. Donaldson, R. J., Inc.
6. Folding Guard Corporation.
7. GS Company (The).
8. Indiana Wire Products, Inc.
9. Jesco Industries, Inc.
10. Kenco Wire and Iron Products Inc.
11. Kentucky Metal Products Co.
12. King Wire Partitions, Inc.
13. Lakeside Wire and Iron Company.
14. Miller Wire Works, Inc.
15. Newark Wire Works Inc.
16. Standard Wire & Steel Works.
17. Wire Crafters, LLC.
2.2 MATERIALS
A. Steel Wire: ASTM A 510 (ASTM A 510M).
B. Steel Plates, Channels, Angles, and Bars: ASTM A 36/A 36M.
C. ColdRolled Steel Sheet: ASTM A 1008/A 1008M, C ommercial Steel (CS),
Type B.
D. Steel Pipe: ASTM A 53/A 53M, Schedule 40 unless another weight is
indicated or required by structural loads.
E. Square Steel Tubing: ASTM A 500, coldformed str ucturalsteel tubing.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP WIRE MESH PARTITIONS
STANDARD SPECIFICATIONS NOVEMBER 2, 2012
F. MetallicCoated Steel Sheet: ASTM A 653/A 653M, Commercial Steel (CS),
Type B; with G60 (Z180) zinc (galvanized) or A60 (ZF180) zincironalloy
(galvannealed) coating designation.
G. PaneltoPanel Fasteners: Manufacturer's standa rd steel bolts, nuts, and
washers.
H. Postinstalled Expansion Anchors: With capability to sustain, without failure,
load imposed within factors of safety indicated, as determined by testing per
ASTM E 488, conducted by a qualified independent testing agency.
1. Carbon Steel: Zinc plated to comply with ASTM B 633, Class Fe/Zn 5
(0.005 mm) for Class SC 1 service condition (mild).
2. Stainless Steel: ASTM F 593 and ASTM F 594, Alloy Group 1 or 2
(ASTM F 738M and ASTM F 836M, Alloy Group 1 or 4), for bolts and nuts;
ASTM A 276 or ASTM A 666, Type 304 or 316, for anchors.
3. For Postinstalled Anchors in Concrete: Capability to sustain, without
failure, a load equal to four times the loads imposed.
4. For Postinstalled Anchors in Grouted Masonry Units: Capability to
sustain, without failure, a load equal to six times the loads imposed.
I. PowerActuated Fasteners in Concrete: Fastener system of type suitable for
application indicated and fabricated from corrosionresistant materials; with
clips or other accessory devices for attaching hangers of type indicated, and
with capability to sustain, without failure, a load equal to 10 times that
imposed by wire mesh construction, as determined by testing per
ASTM E 1190, conducted by a qualified testing and inspecting agency.
J. Universal Shop Primer: Fastcuring, lead and c hromatefree, universal
modifiedalkyd primer, complying with MPI#79.
1. Use primer containing pigments that make it easily distinguishable from
zincrich primer.
2.3 STANDARDDUTY WIRE MESH PARTITIONS
A. Mesh: 0.135inch (3.5mm) diameter, intermedi atecrimp steel wire woven
into 11/2inch (38mm) diamond mesh.
B. Vertical Panel Framing: 11/4by5/8by0.097i nch (32by16by2.5mm)
coldrolled, Cshaped steel channels with 1/4inch (6mm) diameter bolt
holes spaced not more than 18 inches (450 mm) o.c. along center of framing.
C. Horizontal Panel Framing: 1by1/2by1/8inch (25by13by3mm) cold
rolled steel channels.
D. Horizontal Panel Stiffeners: 2 coldrolled stee l channels, not less than 1 by
3/8 by 1/8 inch (25 by 9.5 by 3 mm), bolted or riveted toe to toe through mesh
or 1by1/2by1/8inch (25by13by3mm) coldrol led steel channels with
wire woven through.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP WIRE MESH PARTITIONS
STANDARD SPECIFICATIONS NOVEMBER 2, 2012
E. Top Capping Bars: 21/4by1inch (57by25mm) coldrolled steel channels.
F. Line Posts: 3inchby4.1lb (76mmby1.9kg) or 31/2by11/4by0.127
inch (89by32by3.2mm) steel channels; with 5by 18by1/4inch (125by
450by6mm) steel base plates punched for attachme nt to floor.
G. Floor Shoes: Steel, cast iron, or cast aluminum, not less than 2 inches (50
mm) high; sized to suit vertical framing, drilled for attachment to floor, and
with set screws for leveling adjustment.
H. Swinging Doors: Fabricated from same mesh as partitions, with framing
fabricated from 11/4by1/2by1/8inch (32by13 by3mm) steel channels
or Cchannels, banded with 11/4by1/8inch (32by 3mm) flat steel bar
cover plates on [3] [4] sides, and with 1/8inch (3mm) thick angle str ike bar
and cover on strike jamb.
1. Hinges: Fullsurface type, 3by3inch (76by 76mm) steel, 11/2 pairs
per door; bolted, riveted, or welded to door and jamb framing.
2. Padlock Lug: Mortised into door framing and enclosed with steel cover.
3. Cylinder Lock: Mortise type with manufacturer's standard cylinder;
operated by key outside and recessed turn knob inside.
I. Accessories:
1. Sheet Metal Base: Not less than 0.060inch (1.5mm) thick, coldrolled
steel sheet.
2. Adjustable Filler Panels: Not less than 0.060i nch (1.5mm) thick, cold
rolled steel sheet; capable of filling openings from 2 to 12 inches (50 to
300 mm).
3. Wall Clips: Manufacturer's standard, coldrolle d steel sheet; allowing up
to 1 inch (25 mm) of adjustment.
J. Finish for Uncoated Ferrous Steel: Bakedenamel finish unless otherwise
indicated.
1. Color: As selected from manufacturer's full range.
2.4 FABRICATION
A. General: Fabricate wire mesh items from components of sizes not less than
those indicated. Use largersized components as re commended by wire
mesh item manufacturer. As required for complete installation, provide bolts,
hardware, and accessories with manufacturer's standard finishes.
1. Fabricate wire mesh items to be readily disassembled.
2. Welding: Weld corner joints of framing and grind smooth, leaving no
evidence of joint.
B. StandardDuty Wire Mesh Partitions: Fabricate w ire mesh partitions with
cutouts for pipes, ducts, beams, and other items indicated. Finish edges of
cutouts to provide a neat, protective edge.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP WIRE MESH PARTITIONS
STANDARD SPECIFICATIONS NOVEMBER 2, 2012
1. Mesh: Securely clinch mesh to framing.
2. Framing: Fabricate framing with mortise and tenon corner construction.
a. Provide horizontal stiffeners as indicated or, if not indicated, as
required by panel height and as recommended by wire mesh partition
manufacturer. Weld horizontal stiffeners to vertical framing.
b. Fabricate partition and door framing with slotted holes for connecting
adjacent panels.
3. Fabricate wire mesh partitions with 3 inches (76 mm) of clear space
between finished floor and bottom horizontal framing.
4. Fabricate wire mesh partitions with bottom horizontal framing flush with
finished floor.
5. Doors: Align bottom of door with bottom of adjacent panels.
a. For doors that do not extend full height of partition, provide transom
over door, fabricated from same mesh and framing as partition panels.
6. Hardware Preparation: Mortise, reinforce, drill, and tap doors and framing
as required to install hardware.
2.5 GENERAL FINISH REQUIREMENTS
A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal
Products" for recommendations for applying and designating finishes.
B. Protect mechanical finishes on exposed surfaces from damage by applying a
strippable, temporary protective covering before shipping.
2.6 STEEL AND IRON FINISHES
A. Galvanizing: Hotdip galvanize items as indicat ed to comply with applicable
standard listed below:
1. ASTM A 123/A 123M, for galvanizing steel and iron components.
2. ASTM A 153/A 153M, for galvanizing steel and iron hardware.
3. Preparation for Shop Priming: After galvanizing, thoroughly clean wire
mesh components of grease, dirt, oil, flux, and other foreign matter, and
treat with metallicphosphate process.
B. Preparation for Shop Priming: Prepare uncoated ferrousmetal surfaces to
comply with minimum requirements indicated below for SSPC surface
preparation specifications and environmental exposure conditions of installed
metal fabrications:
1. Ineriors (SSPC Zone 1A): SSPC_SP 3, “Power Tool Cleaning.”
C. Shop Priming: Apply shop primer to uncoated surfaces of metal fabrications,
except those with galvanized finishes and those to be embedded in concrete
or masonry, unless otherwise indicated. Comply with SSPCPA 1, "Paint
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP WIRE MESH PARTITIONS
STANDARD SPECIFICATIONS NOVEMBER 2, 2012
Application Specification No. 1: Shop, Field, and Maintenance Painting of
Steel," for shop painting.
1. Stripe paint corners, crevices, bolts, welds, and sharp edges.
D. BakedEnamel or PowderCoat Finish: Immediately after cleaning and
pretreating, apply manufacturer's standard 2coat, bakedon finish, suitable
for use indicated, consisting of prime coat and thermosetting topcoat, with a
minimum dry film thickness of 1 mil (0.025 mm) for topcoat.
1. Color and Gloss: As selected from manufacturer's full range.
PART 3 EXECUTION
3.1 EXAMINATION
A. Examine areas, with Installer present, for compliance with requirements for
installation tolerances and other conditions affecting performance of the
Work.
B. Examine floors for suitable conditions where wire mesh items will be installed.
C. Examine walls to which wire mesh items will be attached for properly located
blocking, grounds, and other solid backing for attachment of support
fasteners.
D. Proceed with installation only after unsatisfactory conditions have been
corrected.
3.2 WIRE MESH PARTITIONS ERECTION
A. Anchor wire mesh partitions to floor with 3/8in ch (9.5mm) diameter,
postinstalled expansion anchors at 12 inches (305 mm) o.c. through anchor
clips located at each post and corner. Shim anchor clips as required to
achieve level and plumb installation.
1. Anchors may be set with poweractuated fasteners instead of postinstalled
expansion anchors if indicated on Shop Drawings.
B. Anchor wire mesh partitions to floor with 3/8in ch (9.5mm) diameter,
postinstalled expansion anchors at 12 inches (305 mm) o.c. through floor
shoes located at each post and corner. Adjust wire mesh partition posts in
floor shoes to achieve level and plumb installation.
1. Anchors may be set with poweractuated fasteners instead of postinstalled
expansion anchors if indicated on Shop Drawings.
C. Anchor wire mesh partitions to walls at 12 inches (305 mm) o.c. through back
corner panel framing and as follows:
1. For concrete and solid masonry anchorage, use drilledin expansion
shields and hanger or lag bolts.
BEARDSLEY DESIGN ASSOCIATES
CORNELL NCP WIRE MESH PARTITIONS
STANDARD SPECIFICATIONS NOVEMBER 2, 2012
2. For hollow masonry anchorage, use toggle bolts.
3. For wood stud partitions, use hanger or lag bolts set into wood backing
between studs. Coordinate with carpentry work to locate backing
members.
4. For steelframed gypsum board assemblies, use ha nger or lag bolts set
into wood backing between studs. Coordinate with stud installation to
locate backing members.
5. For steelframed gypsum board assemblies, fasten brackets directly to
steel framing or concealed reinforcements using selftapping screws of
size and type required to support structural loads.
D. Secure top capping bars to top framing channels with 1/4inch (6mm)
diameter "U" bolts spaced not more than 28 inches (700 mm) o.c.
E. Provide line posts at locations indicated or, if not indicated, as follows:
1. On each side of sliding door openings.
2. For partitions that are 7 to 9 feet (2.1 to 2.7 m) high, spaced at 15 to 20
feet (4.6 to 6.1 m) o.c.
3. For partitions that are 10 to 12 feet (3.0 to 3.7 m) high, located between
every other panel.
4. For partitions that are more than 12 feet (3.7 m) high, located between
each panel.
F. Where standardwidth wire mesh partition panels do not fill entire length of
run, provide adjustable filler panels to fill openings.
G. Install doors complete with door hardware.
H. Bolt accessories to wire mesh partition framing.
3.3 ADJUSTING AND CLEANING
A. Adjust doors to operate smoothly and easily, without binding or warping.
Adjust hardware to function smoothly. Confirm that latches and locks engage
accurately and securely without forcing or binding.
B. Remove and replace defective work including doors and framing that are
warped, bowed, or otherwise unacceptable.
C. Touchup Painting: Immediately after erection, clean field welds, bolted
connections, and abraded areas. Paint uncoated and abraded areas with the
same material as used for shop painting to comply with SSPCPA 1 for
touching up shoppainted surfaces.
D. Galvanized Surfaces: Clean field welds, bolted connections, and abraded
areas and repair galvanizing to comply with ASTM A 780.
END OF SECTION 102213