HomeMy WebLinkAbout05 52 13 Pipe and Tube RailingsTHE KENT
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SECTION 05 52 13 - PIPE AND TUBE RAILINGS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Steel pipe and tube railings.
B. Related Requirements:
1. Section 05 73 00 "Decorative Metal Railings" for ornamental railings fabricated from
pipes and tubes.
2. Section 09 91 00 “Painting,” 09 96 00 “High Performance Coatings” and 09 97 01 “High
Performance Coatings-Aliphatic Polyurethane.”
1.3 COORDINATION
A. Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint
and coating manufacturers' written recommendations to ensure that shop primers and topcoats
are compatible with one another.
B. Coordinate installation of anchorages for railings. Furnish setting drawings, templates, and
directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, and items
with integral anchors, that are to be embedded in concrete or masonry. Deliver such items to
Project site in time for installation.
C. Schedule installation so wall attachments are made only to completed walls. Do not support
railings temporarily by any means that do not satisfy structural performance requirements.
1.4 ACTION SUBMITTALS
A. Product Data: For the following:
1. Manufacturer's product lines of mechanically connected railings.
2. Railing brackets.
3. Grout, anchoring cement, and paint products.
B. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work.
C. Samples: For each type of exposed finish required.
1. Sections of each distinctly different linear railing member, including handrails, top rails,
posts, and balusters.
2. Fittings and brackets.
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3. Assembled Sample of railing system, made from full-size components, including top rail,
post, handrail, and infill. Sample need not be full height.
a. Show method of connecting and finishing members at intersections.
D. Delegated-Design Submittal: For railings, including analysis data signed and sealed by the
qualified professional engineer responsible for their preparation.
1.5 INFORMATIONAL SUBMITTALS
A. Qualification Data: For testing agency.
B. Welding certificates.
C. Paint Compatibility Certificates: From manufacturers of topcoats applied over shop primers
certifying that shop primers are compatible with topcoats.
D. Product Test Reports: For pipe and tube railings, for tests performed by a qualified testing
agency, according to ASTM E 894 and ASTM E 935.
E. Evaluation Reports: For post-installed anchors, from ICC-ES.
1.6 QUALITY ASSURANCE
A. Source Limitations: Obtain each type of railing through one source from a single manufacturer.
B. Welding Qualifications: Qualify procedures and personnel according to the following:
1. AWS D1.1, "Structural Welding Code - Steel."
1.7 DELIVERY, STORAGE, AND HANDLING
A. Protect mechanical finishes on exposed surfaces from damage by applying a strippable,
temporary protective covering before shipping.
1.8 FIELD CONDITIONS
A. Field Measurements: Verify actual locations of walls and other construction contiguous with
metal fabrications by field measurements before fabrication.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Steel Pipe and Tube Railings:
1. Available Manufacturers: Subject to compliance with requirements, manufacturers
offering products that may be incorporated into the Work include, but are not limited to,
the following:
a. Steel Pipe and Tube Railings:
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1) Pisor Industries, Inc.
2) Sharpe Products.
3) Wagner, R & B, Inc.; a division of the Wagner Companies.
2.2 PERFORMANCE REQUIREMENTS
A. Delegated Design: Engage a qualified professional engineer, as defined in Section 014000
"Quality Requirements," to design railings, including attachment to building construction.
B. Structural Performance: Railings, including attachment to building construction, shall withstand
the effects of gravity loads and the following loads and stresses within limits and under
conditions indicated:
1. Handrails and Top Rails of Guards:
a. Uniform load of 50 lbf/ ft. applied in any direction.
b. Concentrated load of 200 lbf applied in any direction.
c. Uniform and concentrated loads need not be assumed to act concurrently.
2. Infill of Guards:
a. Concentrated load of 50 lbf applied horizontally on an area of 1 sq. ft.
b. Infill load and other loads need not be assumed to act concurrently.
C. Thermal Movements: Allow for thermal movements from ambient and surface temperature
changes.
1. Temperature Change: 120 deg F, ambient; 180 deg F.
D. Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals
and other materials from direct contact with incompatible materials.
2.3 METALS, GENERAL
A. Metal Surfaces, General: Provide materials with smooth surfaces, without seam marks, roller
marks, rolled trade names, stains, discolorations, or blemishes.
B. Brackets, Flanges, and Anchors: Cast or formed metal of same type of material and finish as
supported rails unless otherwise indicated.
1. Provide type of bracket with and that provides 1-1/2-inch clearance from inside face of
handrail to finished wall surface.
2.4 STEEL AND IRON
A. Recycled Content of Steel Products: Postconsumer recycled content plus one-half of pre-
consumer recycled content not less than 25 percent.
B. Tubing: ASTM A 500 (cold formed).
C. Pipe: ASTM A 53, Type F or Type S, Grade A, Standard Weight (Schedule 40), unless another
grade and weight are required by structural loads.
1. Provide galvanized finish for exterior installations and where indicated.
D. Plates, Shapes, and Bars: ASTM A 36.
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2.5 FASTENERS
A. General: Provide the following:
1. Steel Railings: Plated steel fasteners complying with ASTM B 633 or ASTM F 1941,
Class Fe/Zn 5 for zinc coating.
B. Fasteners for Anchoring Railings to Other Construction: Select fasteners of type, grade, and
class required to produce connections suitable for anchoring railings to other types of
construction indicated and capable of withstanding design loads.
C. Fasteners for Interconnecting Railing Components:
1. Provide concealed fasteners for interconnecting railing components and for attaching
them to other work, unless exposed fasteners are unavoidable or are the standard
fastening method for railings indicated.
D. Anchors: Provide cast-in-place anchors, fabricated from corrosion-resistant materials with
capability to sustain, without failure, a load equal to six times the load imposed when installed in
unit masonry and equal to four times the load imposed when installed in concrete, as
determined by testing per ASTM E 488 conducted by a qualified independent testing agency.
2.6 MISCELLANEOUS MATERIALS
A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy
welded.
B. Shop Primers: Provide primers that comply with Division 09 Sections “Painting,” “High
Performance Coatings” and “High Performance Coatings- Aliphatic Polyurethane.”
C. Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D 1187.
D. Universal Shop Primer: Fast-curing, lead- and chromate-free, universal modified-alkyd primer
complying with MPI#79.
1. Use primer with a VOC content of 420 g/L (3.5 lb/gal.) or less when calculated according
to 40 CFR 59, Subpart D (EPA Method 24).
2. Use primer containing pigments that make it easily distinguishable from zinc-rich primer.
E. Zinc-Rich Primer: Complying with SSPC-Paint 20 or SSPC-Paint 29 and compatible with
topcoat.
1. Use primer with a VOC content of 420 g/L (3.5 lb/gal.) or less when calculated according
to 40 CFR 59, Subpart D (EPA Method 24).
2. Products: Subject to compliance with requirements, provide one of the following:
a. Benjamin Moore & Co.; Epoxy Zinc-Rich Primer CM18/19.
b. PPG Architectural Finishes, Inc.; Aquapon Zinc-Rich Primer 97-670.
c. Sherwin-Williams Company (The); Corothane I GalvaPac Zinc Primer.
F. Shop Primer for Galvanized Steel: Zinc-dust, zinc-oxide primer formulated for priming zinc-
coated steel and for compatibility with finish paint systems indicated and complying with SSPC-
Paint 5.
G. Non-shrink, Non-metallic Grout: Factory-packaged, non-staining, non-corrosive, non-gaseous
grout complying with ASTM C 1107. Provide grout specifically recommended by manufacturer
for interior and exterior applications.
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H. Anchoring Cement: Factory-packaged, non-shrink, non-staining, hydraulic-controlled expansion
cement formulation for mixing with water at Project site to create pourable anchoring, patching,
and grouting compound.
1. Water-Resistant Product: At exterior locations and where indicated provide formulation
that is resistant to erosion from water exposure without needing protection by a sealer or
waterproof coating and that is recommended by manufacturer for exterior use.
2.7 FABRICATION
A. General: Fabricate railings to comply with requirements indicated for design, dimensions,
member sizes and spacing, details, finish, and anchorage, but not less than that required to
support structural loads.
B. Shop assemble railings to greatest extent possible to minimize field splicing and assembly.
Disassemble units only as necessary for shipping and handling limitations. Clearly mark units
for reassembly and coordinated installation. Use connections that maintain structural value of
joined pieces.
C. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius
of approximately 1/32 inch unless otherwise indicated. Remove sharp or rough areas on
exposed surfaces.
D. Form work true to line and level with accurate angles and surfaces.
E. Fabricate connections that are exposed to weather in a manner that excludes water. Provide
weep holes where water may accumulate.
F. Cut, reinforce, drill, and tap as indicated to receive finish hardware, screws, and similar items.
G. Connections: Fabricate railings with welded connections unless otherwise indicated.
H. Welded Connections: Cope components at connections to provide close fit, or use fittings
designed for this purpose. Weld all around at connections, including at fittings.
1. Use materials and methods that minimize distortion and develop strength and corrosion
resistance of base metals.
2. Obtain fusion without undercut or overlap.
3. Remove flux immediately.
4. At exposed connections, finish exposed surfaces smooth and blended so no roughness
shows after finishing and welded surface matches contours of adjoining surfaces.
I. Non-welded Connections: Connect members with concealed mechanical fasteners and fittings.
Fabricate members and fittings to produce flush, smooth, rigid, hairline joints.
1. Fabricate splice joints for field connection using an epoxy structural adhesive if this is
manufacturer's standard splicing method.
J. Form Changes in Direction as Follows:
1. As detailed.
K. For changes in direction made by bending, use jigs to produce uniform curvature for each
repetitive configuration required. Maintain cross section of member throughout entire bend
without buckling, twisting, cracking, or otherwise deforming exposed surfaces of components.
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L. Close exposed ends of railing members with prefabricated end fittings.
M. Provide wall returns at ends of wall-mounted handrails unless otherwise indicated. Close ends
of returns unless clearance between end of rail and wall is 1/4 inch or less.
N. Brackets, Flanges, Fittings, and Anchors: Provide wall brackets, flanges, miscellaneous fittings,
and anchors to interconnect railing members to other work unless otherwise indicated.
1. At brackets and fittings fastened to plaster or gypsum board partitions, provide crush-
resistant fillers or other means to transfer loads through wall finishes to structural
supports and prevent bracket or fitting rotation and crushing of substrate.
O. Provide inserts and other anchorage devices for connecting railings to concrete or masonry
work. Fabricate anchorage devices capable of withstanding loads imposed by railings.
Coordinate anchorage devices with supporting structure.
P. Toe Boards: Where indicated, provide toe boards at railings around openings and at edge of
open-sided floors and platforms. Fabricate to dimensions and details indicated.
2.8 STEEL AND IRON FINISHES
A. Galvanized Railings:
1. Hot-dip galvanize steel railings, including hardware, after fabrication.
2. Comply with ASTM A 123 for hot-dip galvanized railings.
3. Comply with ASTM A 153 for hot-dip galvanized hardware.
4. Do not quench or apply post galvanizing treatments that might interfere with paint
adhesion.
5. Fill vent and drain holes that are exposed in the finished Work, unless indicated to remain
as weep holes, by plugging with zinc solder and filing off smooth.
B. For galvanized railings, provide hot-dip galvanized fittings, brackets, fasteners, sleeves, and
other ferrous components.
C. Preparing Galvanized Railings for Shop Priming: After galvanizing, thoroughly clean railings of
grease, dirt, oil, flux, and other foreign matter, and treat with etching cleaner.
D. Preparation for Shop Priming: Prepare uncoated ferrous-metal surfaces to comply with
requirements indicated below:
1. Exterior Railings: SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."
2. Railings Indicated to Receive Zinc-Rich Primer: SSPC-SP 6/NACE No. 3, "Commercial
Blast Cleaning."
3. Railings Indicated to Receive Primers Specified in Section 099600 "High-Performance
Coatings": SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."
4. Other Railings: SSPC-SP 3, "Power Tool Cleaning."
E. Primer Application: Apply shop primer to prepared surfaces of railings unless otherwise
indicated. Comply with requirements in SSPC-PA 1, "Shop, Field, and Maintenance Painting of
Steel," for shop painting. Primer need not be applied to surfaces to be embedded in concrete or
masonry.
1. Refer to Section 09 91 00 "Painting," Section 09 96 00 "High Performance Coatings" and
Section 09 97 01 "High-Performance Coatings-Aliphatic Polyurethane."
2. Do not apply primer to galvanized surfaces.
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F. Shop-Painted Finish: Comply with Section 09 91 00 "Painting," Section 09 96 00 "High-
Performance Coatings" and Section 09 97 01 “High Performance Coatings – Aliphatic
Polyurethanes.”
1. Color: As selected by Architect from manufacturer's full range.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine plaster and gypsum board assemblies, where reinforced to receive anchors, to verify
that locations of concealed reinforcements are clearly marked for Installer. Locate
reinforcements and mark locations if not already done.
3.2 INSTALLATION, GENERAL
A. Fit exposed connections together to form tight, hairline joints.
B. Perform cutting, drilling, and fitting required for installing railings. Set railings accurately in
location, alignment, and elevation; measured from established lines and levels and free of rack.
1. Do not weld, cut, or abrade surfaces of railing components that are coated or finished
after fabrication and that are intended for field connection by mechanical or other means
without further cutting or fitting.
2. Set posts plumb within a tolerance of 1/16 inch in 3 feet.
3. Align rails so variations from level for horizontal members and variations from parallel
with rake of steps and ramps for sloping members do not exceed 1/4 inch in 12 feet.
C. Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals
and other materials from direct contact with incompatible materials.
1. Coat, with a heavy coat of bituminous paint, concealed surfaces of aluminum that are in
contact with grout, concrete, masonry, wood, or dissimilar metals.
D. Adjust railings before anchoring to ensure matching alignment at abutting joints.
E. Fastening to In-Place Construction: Use anchorage devices and fasteners where necessary for
securing railings and for properly transferring loads to in-place construction.
3.3 RAILING CONNECTIONS
A. Non-welded Connections: Use mechanical or adhesive joints for permanently connecting railing
components. Seal recessed holes of exposed locking screws using plastic cement filler colored
to match finish of railings.
B. Welded Connections: Use fully welded joints for permanently connecting railing components.
Comply with requirements for welded connections in "Fabrication" Article whether welding is
performed in the shop or in the field.
C. Expansion Joints: Install expansion joints at locations indicated but not farther apart than
required to accommodate thermal movement. Provide slip-joint internal sleeve extending 2
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inches beyond joint on either side, fasten internal sleeve securely to one side, and locate joint
within 6 inches of post.
3.4 ANCHORING POSTS
A. Use metal sleeves preset and anchored into concrete for installing posts. After posts are
inserted into sleeves, fill annular space between post and sleeve with non-shrink, non-metallic
grout or anchoring cement, mixed and placed to comply with anchoring material manufacturer's
written instructions.
B. Anchor posts to metal surfaces with oval flanges, angle type, or floor type as required by
conditions, connected to posts and to metal supporting members as follows:
1. For steel pipe railings, weld flanges to post and bolt to metal supporting surfaces.
C. Install removable railing sections, where indicated, in slip-fit metal sockets cast in concrete.
3.5 ATTACHING RAILINGS
A. Anchor railing ends at walls with round flanges anchored to wall construction and welded to
railing ends or connected to railing ends using non-welded connections.
B. Anchor railing ends to metal surfaces with flanges bolted to metal surfaces and welded to railing
ends or connected to railing ends using non-welded connections.
C. Secure wall brackets and railing end flanges to building construction as follows:
1. For concrete and solid masonry anchorage, use drilled-in expansion shields and hanger
or lag bolts.
2. For hollow masonry anchorage, use toggle bolts.
3. For steel-framed partitions, use toggle bolts installed through flanges of steel framing or
through concealed steel reinforcements.
3.6 ADJUSTING AND CLEANING
A. Touchup Painting: Immediately after erection, clean field welds, bolted connections, and
abraded areas of shop paint, and paint exposed areas with the same material as used for shop
painting to comply with SSPC-PA 1 requirements for touching up shop-painted surfaces.
1. Apply by brush or spray to provide a minimum 2.0-mil dry film thickness.
B. Galvanized Surfaces: Clean field welds, bolted connections, and abraded areas, and repair
galvanizing to comply with ASTM A 780.
3.7 PROTECTION
A. Protect finishes of railings from damage during construction period with temporary protective
coverings approved by railing manufacturer. Remove protective coverings at time of Substantial
Completion.
END OF SECTION 05 52 13