HomeMy WebLinkAbout051200-Structural-Steel-Framing_Rev_1Dennis Yarmouth Intermediate Middle School
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Addendum #8 – March 01, 2021
STRUCTURAL STEEL FRAMING
05 1200 - 1
SECTION 05 1200
STRUCTURAL STEEL FRAMING
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. Structural steel.
2. Prefabricated Building Columns.
3. Field-installed shear connectors.
4. Grout.
B. Related Requirements:
1. Section 05 3100 "Steel Decking"
2. Section 05 2100 “Steel Joist Framing”
3. Section 05 5000 "Metal Fabrications" for steel lintels and shelf angles not attached to
structural-steel frame miscellaneous steel fabrications and other steel items not defined
as structural steel.
4. Section 07 8100 “Applied Fireproofing”
5. Section 09 0007 “Painting”
1.3 DEFINITIONS
A. Structural Steel: Elements of the structural frame indicated on Drawings and as described and
defined in AISC 303, "Code of Standard Practice for Steel Buildings and Bridges."
B. Miscellaneous Steel: Steel items other than “Structural Steel” as described and defined in AISC
303 “Code of Standard Practice for Steel Buildings and Bridges.”
C. Heavy Sections: Rolled and built-up sections as follows:
1. Shapes included in ASTM A 6/A 6M with flanges thicker than 1-1/2 inches.
2. Welded built-up members with plates thicker than 2 inches.
3. Column base plates thicker than 2 inches.
1.4 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 anchorage items to be embedded in or attached to other construction
without delaying the Work. Provide setting diagrams, sheet metal templates, instructions, and
directions for installation.
C. Coordinate length of prefabricated fire-rated column shells with finish floors and ceiling
elevations.
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STRUCTURAL STEEL FRAMING
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1.5 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. LEED Submittals:
1. 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,
2. Complete "LEED Materials Documentation Sheet" with MRc2 information for each
product having an EPD.
3. 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.
4. Complete "LEED Materials Documentation Sheet" with MRc3 Option 2 information for
products with recycled content installed in the building.
5. 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
6. Provide MSDS or other manufacturer documentation with disclosure of VOC content for
all wet-applied products.
7. Complete "LEED Materials Documentation Sheet" with IEQc2 information for
paints/coatings installed within the waterproofing membrane.
C. Shop Drawings: Show fabrication of structural steel components.
1. Include details of cuts, connections, splices, camber, holes, and other pertinent data.
2. Include embedment Drawings.
3. Indicate welds by standard AWS symbols, distinguishing between shop and field welds,
and show size, length, and type of each weld. Show backing bars that are to be removed
and supplemental fillet welds where backing bars are to remain.
4. Indicate type, size, and length of bolts, distinguishing between shop and field bolts.
Identify pre-tensioned and slip-critical, high-strength bolted connections.
D. Delegated-Design Submittal: For structural-steel connections indicated to comply with design
loads, include analysis data signed and sealed by the qualified professional engineer
responsible for their preparation.
1.6 INFORMATIONAL SUBMITTALS
A. Qualification Data: For Installer and fabricator
B. Welding certificates.
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STRUCTURAL STEEL FRAMING
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C. Paint Compatibility Certificates: From manufacturers of topcoats applied over shop primers,
certifying that shop primers are compatible with topcoats.
D. Mill test reports for structural steel, including chemical and physical properties.
E. Product Test Reports: For the following:
1. Bolts, nuts, and washers including mechanical properties and chemical analysis.
2. Tension-control, high-strength, bolt-nut-washer assemblies.
3. Shear stud connectors.
4. Shop primers.
5. Nonshrink grout.
1.7 QUALITY ASSURANCE
A. Fabricator Qualifications: A qualified fabricator that participates in the AISC Quality Certification
Program and is designated an AISC-Certified Plant, Category STD.
B. Installer Qualifications: A qualified installer who participates in the AISC Quality Certification
Program and is designated an AISC-Certified Erector, Category ACSE.
C. Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M,
"Structural Welding Code - Steel."
1. Welders and welding operators performing work on bottom-flange, demand-critical welds
shall pass the supplemental welder qualification testing, as required by
AWS D1.8/D1.8M. FCAW-S and FCAW-G shall be considered separate processes for
welding personnel qualification.
D. Comply with applicable provisions of the following specifications and documents:
1. AISC 303.
2. AISC 341 and AISC 341s1.
3. AISC 360.
4. RCSC's "Specification for Structural Joints Using ASTM A 325 or A 490 Bolts."
1.8 DELIVERY, STORAGE, AND HANDLING
A. Store materials to permit easy access for inspection and identification. Keep steel members off
ground and spaced by using pallets, dunnage, or other supports and spacers. Protect steel
members and packaged materials from corrosion and deterioration.
1. Do not store materials on the structure in a manner that might cause distortion, damage,
or overload to members or supporting structures. Repair or replace damaged materials
or structures as directed.
B. Store fasteners in a protected place in sealed containers with manufacturer's labels intact.
1. Fasteners may be repackaged provided Owner's testing and inspecting agency observes
repackaging and seals containers.
2. Clean and relubricate bolts and nuts that become dry or rusty before use.
3. Comply with manufacturers' written recommendations for cleaning and lubricating
ASTM F 1852 fasteners and for retesting fasteners after lubrication.
PART 2 - PRODUCTS
2.1 PERFORMANCE REQUIREMENTS
A. Connections: Provide details of simple shear connections required by the Contract Documents
to be selected or completed by the structural-steel fabricator, including comprehensive
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STRUCTURAL STEEL FRAMING
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engineering analysis by a qualified professional engineer, to withstand loads indicated and
comply with other information and restrictions indicated.
1. Select and complete connections using AISC 360.
2. All girder to column shear connections shall be double angle type.
B. Moment Connections: Type FR, fully restrained.
C. Construction: Braced frame.
2.2 STRUCTURAL-STEEL MATERIALS
A. LEED Requirements:
1. Recycled Content of Steel Products: Provide products with an average recycled content
of steel products so postconsumer recycled content plus one-half of pre-consumer
recycled content is not less than the following:
a. W-Shapes: 90 percent.
b. Channels, Angles: 90 percent.
c. Plate and Bar: 90 percent.
d. Cold-Formed Hollow Structural Sections: 90 percent.
e. Steel Pipe: 90 percent.
f. All Other Steel Materials: 90 percent.
2. Provide products manufactured and extracted within 100 miles of the project site
whenever possible.
3. Provide products with Third Party Environmental Product Declaration (EPD) whenever
available.
B. W-Shapes: ASTM A 992/A 992M, ASTM A 572/A 572M, Grade 50.
C. Channels, Angles: ASTM A 36/A 36M.
D. Plate and Bar: ASTM A 36/A 36M.
E. Hollow Structural Sections: ASTM A 500/A 500M, Grade B, structural tubing.
F. Steel Pipe: ASTM A 53/A 53M, Type E or Type S, Grade B.
1. Finish: Black except where indicated to be galvanized.
G. Welding Electrodes: Comply with AWS requirements.
2.3 BOLTS, CONNECTORS, AND ANCHORS
A. High-Strength Bolts, Nuts, and Washers: ASTM A 325, Type 1, heavy-hex steel structural bolts;
hardened carbon-steel washers; all with a plain finish.
B. High-Strength Bolts, Nuts, and Washers: ASTM A 490, Type 1, heavy-hex steel structural bolts,
hardened carbon-steel washers with a plain finish.
C. Tension-Control, High-Strength Bolt-Nut-Washer Assemblies: ASTM F 1852, Type 1, heavy-
hex or round head assemblies consisting of steel structural bolts with splined ends, heavy-hex
carbon-steel nuts, and hardened carbon-steel washers.
1. Finish: Plain
D. Shear Connectors: ASTM A 108, Grades 1015 through 1020, headed-stud type, cold-finished
carbon steel; AWS D1.1/D1.1M, Type B.
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STRUCTURAL STEEL FRAMING
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E. Unheaded Anchor Rods: ASTM F 1554, Grade 36
1. Configuration: Hooked
2. Nuts: ASTM A 563 heavy-hex carbon steel.
3. Plate Washers: ASTM A 36/A 36M carbon steel.
4. Washers: ASTM F 436, Type 1, hardened carbon steel.
5. Finish: Plain.
F. Headed Anchor Rods: ASTM F 1554, Grade 36.
1. Nuts: ASTM A 563 heavy-hex carbon steel.
2. Plate Washers: ASTM A 36/A 36M carbon steel.
3. Washers: ASTM F 436, Type 1, hardened carbon steel.
4. Finish: Plain.
G. Threaded Rods: ASTM A 36/A 36M.
1. Nuts: ASTM A 563 heavy-hex carbon steel.
2. Washers: ASTM A 36/A 36M carbon steel.
3. Finish: Plain.
H. Sleeve Nuts: Made from cold-finished carbon steel bars, ASTM A 108, Grade 1018.
2.4 THERMAL INSULATION MATERIAL:
A. Fiberglass-Reinforced Laminate Composite material supplied in 1/2 inch thick sheets with
washers and bushings to thermally isolate structural connections.
B. Fiberglass-Reinforced Laminate Composite material shall maintain the structural integrity of the
connections.
2.5 PRIMER
A. LEED Requirements:
1. For field applications that are inside the weatherproofing membrane: Paints and Coatings
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 if the private office scenario.
2. All paints and coatings wet-applied on site must meet the applicable VOC limits of the
California Air Resources Board (CARB) 2007, Suggested Control Measure (SCM) for
Architectural Coatings, or the South Coast Air Quality Management District (SCAQMD)
Rule 1113, effective February 5, 2016.
B. Primer: Comply with Section 099113 "Exterior Painting" and Section 099123 "Interior Painting."
C. Primer: SSPC-Paint 25, Type II, zinc oxide, alkyd, linseed oil primer.
D. Galvanizing Repair Paint: ASTM A 780/A 780M.
2.6 GROUT
A. Nonmetallic, Shrinkage-Resistant Grout: ASTM C 1107/C 1107M, factory-packaged,
nonmetallic aggregate grout, noncorrosive and non-staining, mixed with water to a consistency
suitable for application and 30-minute working time.
2.7 BITUMINOUS PROTECTIVE COATING
A. Cold-applied asphalt emulsion complying with ASTM 1187/D 1187M.
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Addendum #8 – March 01, 2021
STRUCTURAL STEEL FRAMING
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2.8 ADJUSTABLE ANCHOR TIES
A. Wire ties for welding to steel frame shall be 1/4 inch diameter plain steel wire, crimped to allow
connection of masonry ties at 8-inch centers, which allow vertical or horizontal adjustment but
resist tension and compression forces perpendicular to the plane of the wall face.
2.9 FABRICATION
A. Structural Steel: Fabricate and assemble in the shop to the greatest extent possible. Fabricate
according to AISC 303, "Code of Standard Practice for Steel Buildings and Bridges," and to
AISC 360.
1. Camber structural-steel members where indicated.
2. Fabricate beams with rolling camber up.
3. Identify high-strength structural steel according to ASTM A 6/A 6M and maintain
markings until structural steel has been erected.
4. Mark and match-mark materials for field assembly.
5. Complete structural-steel assemblies, including welding of units, before starting shop-
priming operations.
B. Thermal Cutting: Perform thermal cutting by machine to the greatest extent possible.
1. Plane thermally cut edges to be welded to comply with requirements in
AWS D1.1/D1.1M.
C. Bolt Holes: Cut, drill, mechanically thermal cut, or punch standard bolt holes perpendicular to
metal surfaces.
D. Finishing: Accurately finish ends of columns and other members transmitting bearing loads.
E. Shear Connectors: Prepare steel surfaces as recommended by the manufacturer of shear
connectors. Use automatic end welding of headed-stud shear connectors according to
AWS D1.1/D1.1M and manufacturer's written instructions.
F. Holes: Provide holes required for securing other work to structural steel and for other work to
pass through steel members.
1. Cut, drill, or punch holes perpendicular to steel surfaces.
2. Baseplate Holes: Cut, drill, mechanically thermal cut, or punch holes perpendicular to
steel surfaces.
3. Weld threaded nuts to framing and other specialty items indicated to receive other work.
2.10 PREFABRICATED BUILDING COLUMNS
A. Prefabricated building columns consisting of load-bearing structural-steel members protected by
concrete fireproofing encased in an outer non-load-bearing steel shell.
1. 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:
a. Black Rock Column, Inc.
b. Dean Lally L. P.; Fire-Trol Division.
B. Fire-Resistance Ratings: Provide prefabricated building column listed and labeled by a testing
and inspecting agency acceptable to authorities having jurisdiction for ratings indicated, based
on testing according to ASTM E 119.
1. Fire-Resistance Rating: 2 hours.
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Perkins Eastman DPC, project #71011
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STRUCTURAL STEEL FRAMING
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2.11 SHOP CONNECTIONS
A. High-Strength Bolts: Shop install high-strength bolts according to RCSC's "Specification for
Structural Joints Using ASTM A 325 or A 490 Bolts" for the type of bolt and type of joint
specified.
1. Joint Type: Snug tightened.
B. Weld Connections: Comply with AWS D1.1/D1.1M for tolerances, appearances, welding
procedure specifications, weld quality, and methods used in correcting welding work.
1. Assemble and weld built-up sections by methods that maintain true alignment of axes
without exceeding tolerances in AISC 303 for mill material.
2.12 SHOP PRIMING
A. Shop prime steel surfaces except the following:
1. Surfaces embedded in concrete or mortar. Extend priming of partially embedded
members to a depth of 2 inches.
2. Surfaces to be field welded.
3. Surfaces of high-strength bolted slip-critical connections.
4. Surfaces to receive sprayed fire-resistive materials (applied fireproofing).
5. Galvanized surfaces.
B. Surface Preparation: Clean surfaces to be painted. Remove loose rust and mill scale and
spatter slag or flux deposits. Prepare surfaces according to the following specifications and
standards:
1. SSPC-SP 2, "Hand Tool Cleaning."
2. SSPC-SP6, All touchable surfaces scheduled as Architecturally Exposed Steel AESS”
C. Priming: Immediately after surface preparation, apply primer according to manufacturer's
written instructions and at the rate recommended by SSPC to provide a minimum dry film
thickness of 1.5 mils. Use priming methods that result in full coverage of joints, corners, edges,
and exposed surfaces.
1. Stripe paint corners, crevices, bolts, welds, and sharp edges.
2. Apply two coats of shop paint to surfaces that are inaccessible after assembly or
erection. Change the color of the second coat to distinguish it from first.
2.13 GALVANIZING
A. Hot-Dip Galvanized Finish: Apply zinc coating by the hot-dip process to structural steel
according to ASTM A 123/A 123M.
1. Fill vent and drain holes that are exposed in the finished Work unless they function as
weep holes, by plugging with zinc solder and filing off smooth.
2. Galvanize lintels assemblies, hangers, and shelf angles attached to the structural steel
frame and located in exterior walls.
B. Hot-Dip Galvanizing to Receive Paint Finish: Apply zinc coating by the hot-dip process
according to ASTM D6386 to all structural steel that is permanently exposed to weather and
scheduled to receive finish paint.
2.14 SOURCE QUALITY CONTROL
A. Testing Agency: The owner will engage a qualified testing agency to perform shop tests and
inspections.
1. Provide the testing agency with access to places where structural-steel work is being
fabricated or produced to perform tests and inspections.
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STRUCTURAL STEEL FRAMING
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B. Bolted Connections: Inspect shop-bolted connections according to RCSC's "Specification for
Structural Joints Using ASTM A 325 or A 490 Bolts."
C. Welded Connections: Visually inspect shop-welded connections according to AWS D1.1/D1.1M
and the following inspection procedures, at testing agency's option:
1. Magnetic Particle Inspection: ASTM E 709; performed on root pass and finished weld.
Cracks or zones of incomplete fusion or penetration are not accepted.
2. Ultrasonic Inspection: ASTM E 164.
3. Radiographic Inspection: ASTM E 94.
D. In addition to visual inspection, test and inspect shop-welded shear connectors according to
requirements in AWS D1.1/D1.1M for stud welding and as follows:
1. Perform bend tests if visual inspections reveal either a less-than-continuous 360-degree
flash or welding repairs to any shear connector.
2. Conduct tests according to requirements in AWS D1.1/D1.1M on additional shear
connectors if weld fracture occurs on shear connectors already tested.
E. Prepare test and inspection reports.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Verify, with certified steel erector present, elevations of concrete- and masonry-bearing surfaces
and locations of anchor rods, bearing plates, and other embedments for compliance with
requirements.
1. Prepare a certified survey of existing conditions. Include bearing surfaces, anchor rods,
bearing plates, and other embedments showing dimensions, locations, angles, and
elevations.
B. Proceed with installation only after unsatisfactory conditions have been corrected.
3.2 PREPARATION
A. Provide temporary shores, guys, braces, and other supports during erection to keep structural
steel secure, plumb, and in alignment against temporary construction loads and loads equal in
intensity to design loads. Remove temporary supports when permanent structural steel,
connections, and bracing are in place unless otherwise indicated.
3.3 ERECTION
A. Set structural steel accurately in locations and to elevations indicated and according to
AISC 303 and AISC 360.
B. Baseplates, Bearing Plates and Leveling Plates: Clean concrete- and masonry-bearing
surfaces of bond-reducing materials, and roughen surfaces before setting plates. Clean the
bottom surface of the plates.
1. Set plates for structural members on wedges, shims, or setting nuts as required.
2. Weld plate washers to top of baseplate.
3. Snug-tighten anchor rods after supported members have been positioned and plumbed.
Do not remove wedges or shims but, if protruding, cut off flush with the edge of plate
before packing with grout.
4. Promptly pack grout solidly between bearing surfaces and plates so no voids remain.
Neatly finish exposed surfaces; protect the grout and allow to cure.
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STRUCTURAL STEEL FRAMING
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C. Maintain erection tolerances of structural steel within AISC 303, "Code of Standard Practice for
Steel Buildings and Bridges."
D. Align and adjust various members that form part of a complete frame or structure before
permanently fastening. Before assembly, clean bearing surfaces and other surfaces that are in
permanent contact with members. Perform necessary adjustments to compensate for
discrepancies in elevations and alignment.
1. Level and plumb individual members of the structure.
2. Make allowances for the difference between the temperature at the time of erection and
mean temperature when the structure is completed and in service.
E. Splice members only where indicated.
F. Do not use thermal cutting during erection unless approved by Architect. Finish thermally cut
sections within smoothness limits in AWS D1.1/D1.1M.
G. Do not enlarge unfair holes in members by burning or using drift pins. Ream holes that must be
enlarged to admit bolts.
H. Shear Connectors: Prepare steel surfaces as recommended by the manufacturer of shear
connectors. Use automatic end welding of headed-stud shear connectors according to
AWS D1.1/D1.1M and manufacturer's written instructions.
3.4 FIELD CONNECTIONS
A. High-Strength Bolts: Install high-strength bolts according to RCSC's "Specification for Structural
Joints Using ASTM A 325 or A 490 Bolts" for the type of bolt and type of joint specified.
1. Joint Type: Snug tightened.
B. Weld Connections: Comply with AWS D1.1/D1.1M for tolerances, appearances, welding
procedure specifications, weld quality, and methods used in correcting welding work.
1. Comply with AISC 303 and AISC 360 for bearing, alignment, adequacy of temporary
connections, and removal of paint on surfaces adjacent to field welds.
2. Remove backing bars or runoff tabs, back gouge, and grind steel smooth.
3. Assemble and weld built-up sections by methods that maintain true alignment of axes
without exceeding tolerances in AISC 303, "Code of Standard Practice for Steel Buildings
and Bridges," for mill material.
3.5 PREFABRICATED BUILDING COLUMNS
A. Install prefabricated building columns to comply with AISC 360, manufacturer's written
recommendations, and requirements of testing and inspecting agency that apply to the fire-
resistance rating indicated.
3.6 FIELD QUALITY CONTROL
A. Special Inspections: Owner will engage a qualified special inspector to perform the following
special inspections:
1. Verify structural-steel materials and inspect steel frame joint details.
2. Verify weld materials and inspect welds.
3. Verify connection materials and inspect high-strength bolted connections.
B. Testing Agency: Owner will engage a qualified testing agency to perform tests and inspections.
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STRUCTURAL STEEL FRAMING
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C. Bolted Connections: Inspect bolted connections according to RCSC's "Specification for
Structural Joints Using ASTM A 325 or A 490 Bolts."
D. Welded Connections: Visually inspect field welds according to AWS D1.1/D1.1M.
1. In addition to visual inspection, test and inspect field welds according to
AWS D1.1/D1.1M and the following inspection procedures, at testing agency's option:
a. Magnetic Particle Inspection: ASTM E 709; performed on root pass and finished
weld. Cracks or zones of incomplete fusion or penetration are not accepted.
b. Ultrasonic Inspection: ASTM E 164.
c. Radiographic Inspection: ASTM E 94.
E. In addition to visual inspection, test and inspect field-welded shear connectors according to
requirements in AWS D1.1/D1.1M for stud welding and as follows:
1. Perform bend tests if visual inspections reveal either a less-than-continuous 360-degree
flash or welding repairs to any shear connector.
2. Conduct tests according to requirements in AWS D1.1/D1.1M on additional shear
connectors if weld fracture occurs on shear connectors already tested.
3.7 REPAIRS AND PROTECTION
A. Galvanized Surfaces: Clean areas where galvanizing is damaged or missing and repair
galvanizing to comply with ASTM A 780/A 780M.
B. Concealed Steel: Before concealing steel apply a bituminous coating to structural steel per
product requirements at the following locations
1. Column bases encased in concrete
2. Steel enclosed outside of the heated building envelope
C. Touchup Painting: Immediately after erection, clean exposed areas where the primer is
damaged or missing and paint with the same material as used for shop painting to comply with
SSPC-PA 1 for touching up shop-painted surfaces.
1. Clean and prepare surfaces by SSPC-SP 2 hand-tool cleaning or SSPC-SP 3 power-tool
cleaning.
END OF SECTION 05-1200