HomeMy WebLinkAbout05-5000-Metal-Fabrications-(Part-of-FSB-05-0001)_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011 Addendum No 2, February 12, 2021
METAL FABRICATIONS
05 5000 - 1
SECTION 05 5000
METAL FABRICATIONS
(Part of Filed Sub-Bid Section 05 0001 - Miscellaneous And Ornamental Iron)
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. Work Included: Provide labor, materials and equipment necessary to complete the work of this
Section, including but not limited to the following:
1. Steel framing and supports for gymnasium equipment and gymnasium divider curtains.
2.1. Steel framing and supports for operable partitions.
3.2. Steel framing and supports for overhead doors and grilles.
4.3. Steel tube reinforcement for low partitions.
5.4. Steel restraining angles at tops of CMU partitions.
6.5. Steel framing and supports for mechanical and electrical equipment.
7.6. Steel framing and supports (channels and wide-flange steel sections) for attachment of
HVAC roof screen to steel framing.
8.7. Steel framing and supports for applications where framing and supports are not specified
in other Sections.
8. Elevator machine beams and hoist beams.
9. Embedded weld plates for attachment of elevator rails to CMU (rails be elevator
contractor).
10. Steel shapes for supporting elevator door sills.
11. Slotted channel framing.
12. Metal ladders.
13. Elevator pit sump covers.
14. Miscellaneous steel trim including steel angle corner guards, steel edgings, and loading-
dock edge angles.
15. Metal bollards.
16.15. Abrasive metal nosings.
17.16. Loose bearing and leveling plates for applications where they are not specified in other
Sections.
18.17. Bent plate relieving angles for precast concrete sills and string courses.
19.18. Other items indicated on Drawings as Work of this Section.
B. Products furnished, but not installed, under this Section include the following:
1. Loose steel lintels, installed under Section 04 2000 “Unit Masonry.”
2. Anchor bolts, steel pipe sleeves, and slotted-channel inserts to be cast into concrete or
built into unit masonry, installed under Section 03 3000 “Cast-in-Place Concrete” and
Section 04 2000 “Unit Masonry.”
3. Steel weld plates and angles for casting into concrete for applications where they are not
specified in other Sections, installed under Section 03 3000 “Cast-in-Place Concrete.”
C. Related Requirements:
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METAL FABRICATIONS
05 5000 - 2
1. Section 01 8113 “Sustainable Design Requirements” for general requirements and
procedures for compliance with certain USGBC LEED prerequisites and credits.
2. Section 03 3000 "Cast-in-Place Concrete" for installing anchor bolts, steel pipe sleeves,
slotted-channel inserts, and other items cast into concrete.
3. Section 04 2000 "Unit Masonry" for installing loose lintels, anchor bolts, and other items
built into unit masonry.
4. Section 05 1200 "Structural Steel Framing" for steel framing, supports, shelf angles, and
other steel items attached to structural-steel framing.
5. Section 05 5113 "Metal Pan Stairs."
6. Section 05 5213 "Pipe and Tube Railings."
7. Section 05 7100 "Decorative Metal Stairs."
8. Section 05 7300 "Decorative Metal Railings."
9. Section 05 7500 “Decorative Formed Metal” for perforated aluminum intake grilles at
recessed base for mechanical units.
10. Section 09 0007 "Painting" for field applied finish coatings.
11. Section 10 2239 “Folding Panel Partitions" for ceiling-hung folding panel partitions.
12. Section 10 8213.13 “Rooftop Equipment Screens.”
13. Section 11 6623 “Gymnasium Equipment.”
14. Section 11 6643 “Interior Scoreboards.”
15. Section 11 6653 “Gymnasium Dividers.”
16. Section 12 9300 “Site Furnishings” for decorative/removable bollards.
17. Section 14 2100 “Traction Elevators.”
1.3 COORDINATION
A. Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint
and coating manufacturers' written instructions to ensure that shop primers and topcoats are
compatible with one another.
B. Coordinate installation of metal fabrications that are anchored to or that receive other work.
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.
1.4 ACTION SUBMITTALS
A. Make Submittals in accordance with Section 01 3300 “Submittal Procedures.”
B. Product Data: For the following:
1. Nonslip aggregates and nonslip-aggregate surface finishes.
2. Fasteners.
3. Shop primers.
4. Shrinkage-resisting grout.
5. Slotted channel framing.
6. Abrasive metal nosings.
C. Sustainable Design Submittals:
1. Environmental Product Declaration (EPD): Provide manufacturers’ product
documentation for each product having an Environmental Product Declaration (EPD).
a. Documentation should confirm EPD conforms with ISO 14205 EN 15804 or ISO
21930.
b. EPD shall have at least Cradle to Gate scope.
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METAL FABRICATIONS
05 5000 - 3
c. Complete "LEED Materials Documentation Sheet" with MRc2 information for each
product having an EPD.
2. Recycled Content: Provide manufacturers’ product documentation that includes recycled
content claims for the products contributing towards compliance. Claims must conform to
the definition in ISO 14021-1999, Environmental Labels and Declarations, Self-Declared
Environmental Claims.
a. Complete "LEED Materials Documentation Sheet" with MRc3 Option 2 information
for products with recycled content installed in the building.
3. Health Product Declaration (HPD): Provide manufacturers’ product documentation for
each product having a publically available material inventory down to at least 0.1 percent
or 1000 ppm.
a. Documentation should be in the form of one of the following:
1) A publically available inventory of all ingredients identified by name and
Chemical Abstract Service Registration Number (CASRN).
2) A published, complete Health Product Declaration in compliance with the
Health Product Declaration open Standard.
3) Material Health Certificate or Cradle to Cradle Certification under standard
version 3 or later with a Material Health Achievement level at the Bronze
level or higher.
4) A Declare product label indicating that all ingredients have been evaluated
and disclosed down to 1000 ppm.
5) Cradle to Cradle Material Health Certificate at the Bronze Level or higher.
b. Complete "LEED Materials Documentation Sheet" with MRc2 information for each
product having an EPD.
4. Adhesives And Sealants: Provide manufacturers' or third-party certification of testing to
and compliance with the California Department of Public Health (CDPH) Standard
method v1.2-2017, that includes the following information:
a. The exposure scenario used to determine compliance.
b. The range of total VOCs after 14 days, measured as specified in the CDPH
Standard Method v1.2:
1) 0.5 mg/m^3 or less;
2) Between 0.5 and 5.0 mg/m^3; or
3) 5.0 mg/m^3 or more.
c. Laboratory accreditation under ISO/IEC 17025.
d. Claims of compliance for wet-applied products must state the amount applied in
mass per surface area.
e. Provide MSDS or other manufacturer documentation with disclosure of VOC
content for all wet-applied products.
f. Complete "LEED Materials Documentation Sheet" with IEQc2 information for
adhesives/sealants installed within the waterproofing membrane.
D. Shop Drawings: Show fabrication and installation details. Include plans, elevations, sections,
and details of metal fabrications and their connections. Show anchorage and accessory items.
Provide Shop Drawings for the following:
1. Steel framing and supports for operable partitions.
2. Steel framing and supports for overhead doors and grilles.
3. Steel tube reinforcement for low partitions.
4. Steel framing and supports for mechanical and electrical equipment.
5. Steel framing and supports for applications where framing and supports are not specified
in other Sections.
6. Elevator machine beams and hoist beams.
7. Steel shapes for supporting elevator door sills.
8. Metal ladders.
9. Elevator pit sump covers.
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METAL FABRICATIONS
05 5000 - 4
10. Miscellaneous steel trim including steel angle corner guards, steel edgings, and loading-
dock edge angles.
11. Metal bollards.
12.11. Loose steel lintels.
E. Samples for Verification: For each type and finish of extruded nosing.
F. Delegated-Design Submittal: For ladders, including analysis data signed and sealed by the
qualified professional engineer responsible for their preparation.
1.5 INFORMATIONAL SUBMITTALS
A. Qualification Data: For professional engineer's experience with providing delegated-design
engineering services of the kind indicated, including documentation that engineer is licensed in
the jurisdiction in which Project is located.
B. Welding certificates.
C. Galvanizer Certificates: Submit a notarized certificate of compliance from the galvanizer, with
an itemized listing and description of items that have been hot-dip galvanized, hot-dip
galvanized/shop prime painted, and hot-dip galvanized/shop finished.
1. Submit a laboratory analysis of the zinc bath with the names and percentages of metals.
D. Paint Compatibility Certificates: From manufacturers of topcoats applied over shop primers,
certifying that shop primers are compatible with topcoats.
E. Research Reports: For post-installed anchors.
1.6 QUALITY ASSURANCE
A. Welding Qualifications: Qualify procedures and personnel in accordance with the following:
1. AWS D1.1/D1.1M, "Structural Welding Code - Steel."
1.7 FIELD CONDITIONS
A. Field Measurements: Verify actual locations of walls, floor slabs, decks, and other construction
contiguous with metal fabrications by field measurements before fabrication.
PART 2 - PRODUCTS
2.1 LEED REQUIREMENTS
A. Environmental Product Declaration (EPD): Provide products with Third Party Environmental
Product Declaration (EPD) whenever available.
B. Recycled Content: Provide products with the maximum recycled content possible. Minimum
recycled content 20 percent.
C. Health Product Declaration (HPD): Provide products with publically available material
inventories whenever available.
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METAL FABRICATIONS
05 5000 - 5
D. Adhesives And Sealants: For field applications that are inside the weatherproofing membrane:
Adhesives/sealants must be tested and determined compliant in accordance with California
Department of Public Health (CDPH) Standard Method v1.2-2017, using the applicable
exposure scenario. The default scenario is the private office scenario.
1. All adhesives/sealants wet-applied on site must meet the applicable chemical content
requirements of SCAQMD Rule 1168, October 6, 2017, Adhesive and Sealant
Applications, as analyzed by the methods specified in Rule 1168. The provisions of
SCAQMD Rule 1168 do not apply to adhesives and sealants subject to state or federal
consumer product VOC regulations.
2.2 PERFORMANCE REQUIREMENTS
A. Delegated Design: Engage a qualified professional engineer, as defined in Section 01 4000
"Quality Requirements," to design ladders.
B. Thermal Movements: Allow for thermal movements from ambient and surface temperature
changes acting on exterior metal fabrications by preventing buckling, opening of joints,
overstressing of components, failure of connections, and other detrimental effects.
1. Temperature Change: 120 deg F, ambient; 180 deg F, material surfaces.
2.3 METALS
A. Metal Surfaces, General: Provide materials with smooth, flat surfaces unless otherwise
indicated. For metal fabrications exposed to view in the completed Work, provide materials
without seam marks, roller marks, rolled trade names, or blemishes.
B. Recycled Content of Steel Products: Postconsumer recycled content plus one-half of
preconsumer recycled content not less than 25 percent.
C. Steel Plates, Shapes, and Bars: ASTM A36/A36M.
D. Rolled-Steel Floor Plate: ASTM A786/A786M, rolled from plate complying with
ASTM A36/A36M or ASTM A283/A283M, Grade C or D.
E. Rolled-Stainless Steel Floor Plate: ASTM A793.
F. Steel Tubing: ASTM A500/A500M, cold-formed steel tubing.
G. Steel Pipe: ASTM A53/A53M, Standard Weight (Schedule 40) unless otherwise indicated.
H. Slotted Channel Framing: Cold-formed metal box channels (struts) complying with MFMA-4.
1. Size of Channels:
a. Unistrut P1000 or equal; 1-5/8 by 1-5/8 inches.
b. Unistrut P5500 or equal; 1-5/8 by 2-7/16 inches.
2. Brackets: Unistrut P2234 or equal, 24 inches.
3. Material: Cold-rolled steel, ASTM A 1011, structural steel, Grade 33; 0.0966-inch
(12 gage nominal) minimum thickness; hot-dip galvanized after fabrication.
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METAL FABRICATIONS
05 5000 - 6
2.4 FASTENERS
A. General: Unless otherwise indicated, provide Type 304 stainless steel fasteners for exterior use
and zinc-plated fasteners with coating complying with ASTM B633 or ASTM F1941/F1941M,
Class Fe/Zn 5, at exterior walls. Select fasteners for type, grade, and class required.
B. Steel Bolts and Nuts: Regular hexagon-head bolts, ASTM A307, Grade A; with hex nuts,
ASTM A563; and, where indicated, flat washers.
C. Anchor Bolts: ASTM F1554, Grade 36, of dimensions indicated; with nuts, ASTM A563; and,
where indicated, flat washers.
1. Hot-dip galvanize or provide mechanically deposited, zinc coating where item being
fastened is indicated to be galvanized.
D. Anchors, General: Capable of sustaining, without failure, a load equal to six times the load
imposed when installed in unit masonry and four times the load imposed when installed in
concrete, as determined by testing in accordance with ASTM E488/E488M, conducted by a
qualified independent testing agency.
E. Cast-in-Place Anchors in Concrete: Either threaded or wedge type unless otherwise indicated;
galvanized ferrous castings, either ASTM A47/A47M malleable iron or ASTM A27/A27M cast
steel. Provide bolts, washers, and shims as needed, all hot-dip galvanized per
ASTM F2329/F2329M.
F. Post-Installed Anchors: Torque-controlled expansion anchors or chemical anchors.
1. Material for Interior Locations: Carbon-steel components zinc plated to comply with
ASTM B633 or ASTM F1941/F1941M, Class Fe/Zn 5, unless otherwise indicated.
2. Material for Exterior Locations and Where Stainless Steel Is Indicated: Alloy Group 1
stainless steel bolts, ASTM F593, and nuts, ASTM F594.
2.5 MISCELLANEOUS MATERIALS
A. Shop Primers: Provide primers that comply with Section 09 0007 "Painting."
B. Epoxy Zinc-Rich Primer: Complying with MPI#20 and compatible with finish paint systems
indicated.
C. Shop Primer for Galvanized Steel: Primer formulated for exterior use over zinc-coated metal
and compatible with finish paint systems indicated.
D. Galvanizing Repair Paint: High-zinc-dust-content paint complying with SSPC-Paint 20 and
compatible with paints specified to be used over it.
E. Coatings for Shop Finished Items:
1. Shop Primer for Hot-Dip Galvanized Steel: Epoxy primer applied at spreading rate
recommended by manufacturer.
a. Products: Subject to compliance with requirements, products that may be
incorporated into the Work include, but are not limited to the following or equal:
1) PPG Architectural; Pitt-Guard DTR Polyamide Epoxy Coating, 97-14X
Series.
2) Sherwin-Williams Company (The); Protective & Marine; Dura-Plate 235
Multi-Purpose Epxoy B67W235/B67V235.
3) Tnemec Company, Inc.; Series 27 F. C. Typoxy Polyamide Epoxy.
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METAL FABRICATIONS
05 5000 - 7
2. Intermediate Coat for Hot-Dip Galvanized Steel: Epoxy applied at spreading rate
recommended by manufacturer to achieve a dry film thickness of 3.0 to 8.0 mils.
a. Products: Subject to compliance with requirements, products that may be
incorporated into the Work include, but are not limited to the following or equal:
1) PPG Architectural; High Performance Coating; Aquapon 35 Polyamide
Epoxy, 95-1/95-98.
2) Sherwin-Williams Company (The); Protective & Marine; High Performace
Epoxy B67W201.
3) Tnemec Company, Inc.; Series N69 Hi-Build Epoxoline II Polyamide Epoxy.
3. High-Performance Finish Coat for Hot-Dip Galvanized Steel: High-build, semigloss
polyurethane enamel applied at spreading rate recommended by manufacturer to
achieve a dry film thickness of 3.0 to 8.0 mils.
a. Products: Subject to compliance with requirements, products that may be
incorporated into the Work include, but are not limited to the following or equal:
1) PPG; Pitthane High Build Semi-Gloss Urethane Enamels, 95-8800 Series.
2) Sherwin-Williams Company (The); Protective & Marine; Hi-Solids
Polyurethane Semi-Gloss, B65W351/B60V30.
3) Tnemec Company, Inc.; Endura-Shield II, Series 1075.
F. Bituminous Paint: Cold-applied asphalt emulsion complying with ASTM D1187/D1187M.
G. Shrinkage-Resistant Grout: Factory-packaged, nonmetallic, nonstaining, noncorrosive,
nongaseous grout complying with ASTM C1107/C1107M. Provide grout specifically
recommended by manufacturer for interior and exterior applications.
H. Concrete: Comply with requirements in Section 03 3000 "Cast-in-Place Concrete" for normal-
weight, air-entrained concrete with a minimum 28-day compressive strength of 3000 psi.
2.6 FABRICATION, GENERAL
A. Shop Assembly: Preassemble items in the shop to greatest extent possible. Disassemble units
only as necessary for shipping and handling limitations. Use connections that maintain
structural value of joined pieces. Clearly mark units for reassembly and coordinated installation.
B. 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.
C. Form bent-metal corners to smallest radius possible without causing grain separation or
otherwise impairing work.
D. Form exposed work with accurate angles and surfaces and straight edges.
E. Weld corners and seams continuously to comply with the following:
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 welding flux immediately.
4. At exposed connections, finish exposed welds and surfaces smooth and blended so no
roughness shows after finishing and contour of welded surface matches that of adjacent
surface.
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METAL FABRICATIONS
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F. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners or
welds where possible. Where exposed fasteners are required, use Phillips flat-head
(countersunk) fasteners unless otherwise indicated. Locate joints where least conspicuous.
G. Fabricate seams and other connections that are exposed to weather in a manner to exclude
water. Provide weep holes where water may accumulate.
H. Cut, reinforce, drill, and tap metal fabrications as indicated to receive finish hardware, screws,
and similar items.
I. Provide for anchorage of type indicated; coordinate with supporting structure. Space anchoring
devices to secure metal fabrications rigidly in place and to support indicated loads.
J. Where units are indicated to be cast into concrete or built into masonry, equip with integrally
welded steel strap anchors, 1/8 by 1-1/2 inches, with a minimum 6-inch embedment and 2-inch
hook, not less than 8 inches from ends and corners of units and 24 inches o.c., unless
otherwise indicated.
2.7 MISCELLANEOUS FRAMING AND SUPPORTS
A. General: Provide steel framing and supports not specified in other Sections as needed to
complete the Work.
B. Fabricate units from steel shapes, plates, and bars of welded construction unless otherwise
indicated. Fabricate to sizes, shapes, and profiles indicated and as necessary to receive
adjacent construction.
1. Fabricate units from slotted channel framing where indicated.
2. Furnish inserts for units installed after concrete is placed.
C. Fabricate supports for operable partitions from continuous steel beams of sizes recommended
by partition manufacturer with attached bearing plates, anchors, and braces as recommended
by partition manufacturer. Drill or punch bottom flanges of beams to receive partition track
hanger rods; locate holes where indicated on operable partition Shop Drawings.
D. Prime miscellaneous framing and supports with zinc-rich primer.
2.8 METAL LADDERS
A. General: Comply with ANSI A14.3.
B. Steel Ladders:
1. Space siderails 16 inches apart unless otherwise indicated.
2. Siderails: Continuous, 1/2-by-2-1/2-inch steel flat bars, with eased edges.
3. Rungs: 1-inch- diameter, steel bars.
4. Fit rungs in centerline of siderails; plug-weld and grind smooth on outer rail faces.
5. Provide nonslip surfaces on top of each rung, either by coating rung with aluminum-oxide
granules set in epoxy-resin adhesive or by using a type of manufactured rung filled with
aluminum-oxide grout.
6. Source Limitations: Obtain nonslip surfaces from single source from single manufacturer.
7. Support each ladder at top and bottom and not more than 60 inches o.c. with welded or
bolted steel brackets.
8. Galvanize and shop finish exterior ladders, including brackets.
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METAL FABRICATIONS
05 5000 - 9
9. Prime interior ladders, including brackets and fasteners, with zinc-rich primer.
2.9 ELEVATOR PIT SUMP COVERS
A. Fabricate from 3/16-inch rolled-steel floor plate with four 1-inch- diameter holes for water
drainage and for lifting.
B. Provide steel angle supports unless otherwise indicated.
C. Hot-dip galvanize steel sump covers and frames.
2.10 MISCELLANEOUS STEEL TRIM
A. Unless otherwise indicated, fabricate units from steel shapes, plates, and bars of profiles shown
with continuously welded joints and smooth exposed edges. Miter corners and use concealed
field splices where possible.
B. Provide cutouts, fittings, and anchorages as needed to coordinate assembly and installation
with other work.
1. Provide with integrally welded steel strap anchors for embedding in concrete or masonry
construction.
C. Galvanize and prime exterior miscellaneous steel trim.
D. Prime interior miscellaneous steel trim with zinc-rich primer.
2.11 METAL BOLLARDS
A. Fabricate metal bollards from Schedule 80 steel pipe.
B. Fabricate bollards with 3/8-inch- thick, steel baseplates for bolting to concrete slab. Drill
baseplates at all four corners for 3/4-inch anchor bolts.
1. Where bollards are to be anchored to sloping concrete slabs, angle baseplates for plumb
alignment of bollards.
C. Fabricate sleeves for bollard anchorage from steel or stainless steel pipe or tubing with 1/4-
inch- thick, steel or stainless steel plate welded to bottom of sleeve. Make sleeves not less than
8 inches deep and 3/4 inch larger than OD of bollard.
D. Prime steel bollards with zinc-rich primer.
2.122.11 ABRASIVE METAL NOSINGS
A. Extruded Units: Aluminum, with abrasive filler consisting of aluminum oxide, silicon carbide, or
a combination of both, in an epoxy-resin binder. Fabricate units in lengths necessary to
accurately fit openings or conditions.
1. Basis-of-Design Product: Subject to compliance with requirements, provide Model
R-315LP by Balco, Inc., or a comparable product by one of the following or equal:
a. American Safety Tread Co., Inc.
b. Granite State Casting Co.
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METAL FABRICATIONS
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c. Wooster Products Inc.
2. Nosings: Beveled-back units, 3 inches wide with 1-3/8-inch lip, for casting into concrete
steps.
3. Provide ribbed units, with abrasive filler strips projecting 1/16 inch above aluminum
extrusion.
a. Abrasive Filler Strips: Photoluminescent, 2-part epoxy combined with
thermoplastic aggregate and high-grade strontium aluminate photoluminescent
pigment, zinc sulfide shall not be allowed.
b. Abrasive Strip Color: Yellow.
B. Provide anchors for embedding units in concrete, either integral or applied to units, as standard
with manufacturer.
C. Apply clear lacquer to concealed surfaces of extruded units.
2.132.12 LOOSE BEARING AND LEVELING PLATES
A. Provide loose bearing and leveling plates for steel items bearing on masonry or concrete
construction. Drill plates to receive anchor bolts and for grouting.
B. Galvanize bearing and leveling plates.
2.142.13 LOOSE STEEL LINTELS
A. Fabricate loose steel lintels from steel angles and shapes of size indicated for openings and
recesses in masonry walls and partitions at locations indicated. Fabricate in single lengths for
each opening unless otherwise indicated. Weld adjoining members together to form a single
unit where indicated.
B. Size loose lintels to provide bearing length at each side of openings equal to 1/12 of clear span,
but not less than 8 inches unless otherwise indicated.
C. Galvanize and prime loose steel lintels located.
2.152.14 STEEL WELD PLATES AND ANGLES
A. Provide steel weld plates and angles not specified in other Sections, for items supported from
concrete construction as needed to complete the Work. Provide each unit with no fewer than
two integrally welded steel strap anchors for embedding in concrete.
2.162.15 GENERAL FINISH REQUIREMENTS
A. Finish metal fabrications after assembly.
B. Finish exposed surfaces to remove tool and die marks and stretch lines, and to blend into
surrounding surface.
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2.172.16 STEEL AND IRON FINISHES
A. Galvanizing: Hot-dip galvanize items as indicated to comply with ASTM A153/A153M for steel
and iron hardware and with ASTM A123/A123M for other steel and iron products.
1. Do not quench or apply post galvanizing treatments that might interfere with paint
adhesion.
B. Preparation for Shop Priming Galvanized Items: After galvanizing, thoroughly clean galvanized
surfaces of grease, dirt, oil, flux, and other foreign matter, and treat with metallic phosphate
process.
C. Shop prime iron and steel items not indicated to be galvanized unless they are to be embedded
in concrete, sprayed-on fireproofing, or masonry, or unless otherwise indicated.
1. Shop prime with primers specified in Section 09 0007 "Painting" unless zinc-rich primer is
indicated.
D. Preparation for Shop Priming: Prepare surfaces to comply with requirements indicated below:
1. Exterior Items: SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."
2. Items Indicated to Receive Zinc-Rich Primer: SSPC-SP 6/NACE No. 3, "Commercial
Blast Cleaning."
3. Items Indicated to Receive Primers Specified in Section 09 9600 "High-Performance
Coatings": SSPC-SP 6/NACE No. 3, "Commercial Blast Cleaning."
4. Other Steel Items: SSPC-SP 3, "Power Tool Cleaning."
5. Galvanized-Steel Items: SSPC-SP 16, "Brush-off Blast Cleaning of Coated and
Uncoated Galvanized Steel, Stainless Steels, and Non-Ferrous Metals."
E. Shop Priming: Apply shop primer to comply with SSPC-PA 1, "Paint Application Specification
No. 1: Shop, Field, and Maintenance Painting of Steel," for shop painting.
1. Stripe paint corners, crevices, bolts, welds, and sharp edges.
2.182.17 HOT-DIP GALVANIZED AND SHOP FINISHED STEEL
A. Hot-dip galvanize all ferrous metal items exposed to the weather, on the exterior of the building,
and where indicated, using an enhanced galvanizing process including state of the art Quality
Assurance/Quality Control methods. Provide hot-dip galvanized coating consisting of zinc and
other metals. Use a "dry-kettle" process to prevent flux inclusions or entrapment. Use of a flux
blanket on the surface of the galvanizing bath is not acceptable. Provide hot-dip galvanized
coating for those items indicated or specified to be galvanized, as follows:
1. ASTM A153 for Galvanizing Iron And Steel Hardware.
2. ASTM A123 for Galvanizing Both Fabricated And Unfabricated Iron And Steel Products
Made Of Uncoated Rolled, Pressed, And Forged Shapes, Plates, Bars, And Strip 0.0299
Inch Thick And Heavier.
3. ASTM A384 for Standard Practice for Safeguarding Against Warpage and Distortion
During Hot-Dip Galvanizing of Steel Assemblies.
4. ASTM A385 for Standard Practice for Providing High Quality Zinc Coatings (Hot-dip).
5. ASTM A386 for Galvanizing Assembled Steel Products.
B. Shop Applied Primer And Intermediate Coats for Hot -Dip Galvanized Metals: Apply primer and
intermediate coat to surfaces of galvanized metal fabrications indicated to receive a top coat of
polyurethane, (whether finish coat is shop applied or field applied), within 12 hours after
galvanizing ferrous metals. Apply epoxy primer at 2.5 to 3.0 mils DFT, and apply epoxy
intermediate coat at 3.0 to 8.0 mils DFT. Both primer and intermediate coat shall be shop
applied by the galvanizer.
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C. Shop Applied Finish Coat for Hot-Dip Galvanized Metals: Apply finish coat to surfaces of hot-
dip galvanized metal fabrications indicated to receive a shop applied top coat. Apply
polyurethane top coat at 2.5 to 3.0 mils DFT over epoxy primer and intermediate coat. Primer,
intermediate coat, and finish coat shall be shop applied by the galvanizer.
PART 3 - EXECUTION
3.1 INSTALLATION, GENERAL
A. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required for installing metal
fabrications. Set metal fabrications accurately in location, alignment, and elevation; with edges
and surfaces level, plumb, true, and free of rack; and measured from established lines and
levels.
B. Fit exposed connections accurately together to form hairline joints. Weld connections that are
not to be left as exposed joints but cannot be shop welded because of shipping size limitations.
Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after
fabrication and are for bolted or screwed field connections.
C. Field Welding: Comply with the following requirements:
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 welding flux immediately.
4. At exposed connections, finish exposed welds and surfaces smooth and blended so no
roughness shows after finishing and contour of welded surface matches that of adjacent
surface.
D. Fastening to In-Place Construction: Provide anchorage devices and fasteners where metal
fabrications are required to be fastened to in-place construction. Provide threaded fasteners for
use with concrete and masonry inserts, toggle bolts, through bolts, lag screws, wood screws,
and other connectors.
E. Provide temporary bracing or anchors in formwork for items that are to be built into concrete,
masonry, or similar construction.
F. Corrosion Protection: Coat concealed surfaces of aluminum that come into contact with grout,
concrete, masonry, wood, or dissimilar metals with the following:
1. Extruded Aluminum: Two coats of clear lacquer.
3.2 INSTALLATION OF MISCELLANEOUS FRAMING AND SUPPORTS
A. General: Install framing and supports to comply with requirements of items being supported,
including manufacturers' written instructions and requirements indicated on Shop Drawings.
B. Anchor supports for [ceiling hung toilet partitions] [operable partitions] [overhead doors] [and]
[overhead grilles] securely to, and rigidly brace from, building structure.
C. Anchor shelf angles securely to existing construction with [expansion anchors] [anchor bolts]
[through bolts].
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D. Support steel girders on solid grouted masonry, concrete, or steel pipe columns. Secure girders
with anchor bolts embedded in grouted masonry or concrete or with bolts through top plates of
pipe columns.
1. Where grout space under bearing plates is indicated for girders supported on concrete or
masonry, install as specified in "Installing Bearing and Leveling Plates" Article.
E. Install pipe columns on concrete footings with grouted baseplates. Position and grout column
baseplates as specified in "Installation of Bearing and Leveling Plates" Article.
1. Grout baseplates of columns supporting steel girders after girders are installed and
leveled.
3.3 INSTALLATION OF PREFABRICATED BUILDING COLUMNS
A. Install prefabricated building columns to comply with ANSI/AISC 360, "Specifications for
Structural Steel Buildings," and with requirements applicable to listing and labeling for fire-
resistance rating indicated.
3.4 INSTALLATION OF METAL BOLLARDS
A. Anchor bollards to existing construction with expansion anchors. Provide four 3/4-inch bolts at
each bollard unless otherwise indicated.
1. Embed anchor bolts at least 4 inches in concrete.
B. Anchor bollards in concrete with pipe sleeves preset and anchored into concrete or in formed or
core-drilled holes not less than 42 inches deep and 3/4 inch larger than OD of bollard. Fill
annular space around bollard solidly with shrinkage-resistant grout; mixed and placed to comply
with grout manufacturer's written instructions. Slope grout up approximately 1/8 inch toward
bollard.
C. Anchor bollards in place with concrete footings. Center and align bollards in holes 3 inches
above bottom of excavation. Place concrete and vibrate or tamp for consolidation. Support and
brace bollards in position until concrete has cured.
D. Fill bollards solidly with concrete, mounding top surface to shed water.
3.53.4 INSTALLATION OF NOSINGS
A. Center nosings on tread widths unless otherwise indicated.
B. For nosings embedded in concrete steps or curbs, align nosings flush with riser faces and level
with tread surfaces.
3.63.5 INSTALLATION OF BEARING AND LEVELING PLATES
A. Clean concrete and masonry bearing surfaces of bond-reducing materials, and roughen to
improve bond to surfaces. Clean bottom surface of plates.
B. Set bearing and leveling plates on wedges, shims, or leveling nuts. After bearing members
have been positioned and plumbed, tighten anchor bolts. Do not remove wedges or shims but,
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if protruding, cut off flush with edge of bearing plate before packing with shrinkage-resistant
grout. Pack grout solidly between bearing surfaces and plates to ensure that no voids remain.
3.73.6 REPAIRS
A. Touchup Painting:
1. Immediately after erection, clean field welds, bolted connections, and abraded areas.
Paint uncoated and abraded areas with same material as used for shop painting to
comply with SSPC-PA 1 for touching up shop-painted surfaces.
a. 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 A780/A780M.
END OF SECTION