July 22, 1994

Contract #TW0592

SPECIAL SPECIFICATION

SECTION 05120-S

[STRUCTURAL STEEL]{.underline}

Page

[PART I - GENERAL]{.underline}

1.01 Description Of Work 2

1.02 References 2

1.03 Submittals 4

1.04 Quality Assurance 5

1.05 Delivery, Storage And Handling 5

1.06 Project Conditions 6

[PART 2 - PRODUCTS]{.underline}

2.01 Materials 6

2.02 Fabrication 7

2.03 Shop Painting 8

2.04 Source Quality Control 9

[PART 3 - EXECUTION]{.underline}

3.01 Erection 9

3.02 Quality Control 10

SPECIAL SPECIFICATION

SECTION 05120-S

[STRUCTURAL STEEL]{.underline}

# PART I - GENERAL

# 1.01 DESCRIPTION OF WORK 

A. [This section]{.underline} includes fabrication and erection of
structural steel work, as shown on drawings including schedules, notes,
and details showing size and location of members, typical connections,
and types of steel required.

Structural steel is that work defined in American Institute of Steel
Construction (AISC) \"Code of Standard Practice for Steel Buildings and
Bridges\" and as otherwise shown on drawings.

B. [Related Sections]{.underline}: Refer to the following sections for
related work:

1\. Division 3, Section \"Cast-In-Place Concrete\" for anchor bolt and
reinforcing steel installation in concrete.

2\. Division 4, Section \"Concrete Masonry\" for anchor bolt
installation in masonry.

3\. Division 5, Section \"Cold-Formed Metal Framing for light-gauge,
load-bearing metal framing.

4\. Division 5, Section \"Metal Fabrications\" for miscellaneous metal
fabrications.

# 1.02 REFERENCES

A. [American Society of Testing and Materials (ASTM)]{.underline}

A6 Specification for General Requirements for Delivery of Rolled Steel
Plates, Shapes, Sheet Piling and Bars for Structural Use

A27 Specification for Steel Castings, Carbon, for General Application

A36 Specification for Structural Steel

> A53 Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated
> Welded and Seamless

A108 Specification for Steel Bars, Carbon, Cold-Finished, Standard
Quality

A153 Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware

> A167 Specification for Stainless and Heat-Resisting Chromium-Nickel
> Steel Plate, Sheet, and Strip

A276 Specification for Stainless and Heat-Resisting Steel Bars and
Shapes

A307 Specification for Carbon Steel Bolts and Studs, 60000 psi Tensile
Strength

A325 Specification for High-Strength Bolts for Structural Steel Joints

A500 Specification for Cold-Formed Welded and Seamless Carbon Steel
Structural Tubing in Rounds and Shapes

> A501 Specification for Hot-Formed Welded and Seamless Carbon Steel
> Structural Tubing

A563 Specification for Carbon and Alloy Steel Nuts

> A572 High-Strength Low-Alloy Columbium-Vanadium Steels of Structural
> Quality

B695 Specification for Coatings of Zinc Mechanically Deposited on Iron
and Steel

C1107 Specification for Packaged Dry, Hydraulic-Cement Grout (Nonshrink)

E94 Guide for Radiographic Testing

E142 Method for Controlling Quality of Radiographic Testing

E164 Practice for Ultrasonic Contact Examination of Weldments

E165 Practice for Liquid Penetrant Inspection Method

E709 Practice for Magnetic Particle Examination

F436 Specification for Hardened Steel Washers

F593 Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs

F594 Specification for Stainless Steel Nuts

B. [American Welding Society (AWS)]{.underline}

D1.1 Structural Welding Code - Steel

C. [Corps of Engineers (CE)]{.underline}

CRD C621 Specification for Nonshrink Grout

D. [Federal Specification (FS)]{.underline}

TT-P-664 Primer Coating, Alkyd, Corrosion-Inhibiting, Lead and Chromate
Free, VOC-Compliant

E. [National Fire Protection Assoc. (NFPA)]{.underline}

51B Standard for Fire Prevention in Use of Cutting and Welding Processes

F. [Steel Structures Painting Council (SSPC)]{.underline}

SP-1 Solvent Cleaning

SP-2 Hand-Tool Cleaning

SP-3 Power-Tool Cleaning

# 1.03 SUBMITTALS 

A. [General]{.underline}: Submit the following in accordance with
conditions of Contract and Division 1, Section \"Descriptive
Submittals\".

B. [Product Data]{.underline}: Submit product data or manufacturer\'s
specifications and installation instructions for the following products.
Include laboratory test reports and other data to show compliance with
specifications (including specified standards).

1\. Structural steel (each type), including certified copies of mill
reports covering chemical and physical properties.

2\. Anchor bolts.

3\. Unfinished threaded fasteners.

4\. High-strength bolts (each type), including nuts and washers.

5\. Structural steel primer paint.

6\. Nonmetallic shrinkage-resistant grout.

C. [Material Safety Data Sheets (MSDS)]{.underline}: Submit MSDS for,
structural steel primer paint and nonmetallic shrinkage-resistant grout.

D. [Shop drawings]{.underline}: Submit shop drawings, including complete
details and schedules for fabrication and assembly of structural steel
members, procedures, and diagrams.

1\. Include details of cuts, connections, cambers, holes and other
pertinent data. Indicate welds by standard AWS symbols and show size,
length, and type of each weld.

2\. Provide setting drawings, templates, and directions for installation
of anchor bolts and other anchorages to be installed as work of other
sections.

E. [Welder Certifications]{.underline}: Provide certification that
welders to be employed in work have satisfactorily passed qualification
tests in accordance with AWS D1.1.

If recertification of welders is required, retesting will be
Contractor\'s responsibility.

# 1.04 QUALITY ASSURANCE 

A. [Codes and Standards]{.underline}: Comply with provisions of the
following, except as otherwise indicated:

1\. AISC \"Code of Standard Practice for Steel Buildings and Bridges\"
with paragraph 4.2.1 modified by deletion of the following sentence:

\"This approval constitutes the owner\'s acceptance of all
responsibility for the design adequacy of any detail configuration of
connections developed by the fabricator as a part of his preparation of
these shop drawings.\"

2\. AISC \"Specifications for Structural Steel Buildings\" including the
\"Commentary\", later referred to as \"AISC Specifications\".

3\. \"Specifications for Structural Joints using ASTM A325 or A490
Bolts\" approved by the Research Council on Structural Connections.

4\. AWS D1.1

5\. ASTM A6

B. [Qualifications for Welding Work]{.underline}: Qualify welding
procedures and welding operators in accordance with the requirements of
AWS D1.1.

C. [All materials]{.underline} used shall not contain asbestos fibers.

# 1.05 DELIVERY, STORAGE AND HANDLING 

A. [Deliver materials]{.underline} to site at such intervals to ensure
uninterrupted progress of work.

B. [Deliver anchor bolts]{.underline} and anchorage devices, which are
to be embedded in cast-in-place concrete or masonry, in ample time so
that work will not be delayed.

C. [Store materials]{.underline} to permit easy access for inspection
and identification. Keep steel members off ground by using pallets,
platforms, or other supports. Protect steel members and packaged
materials from corrosion and deterioration. If bolts and nuts become dry
or rusty, clean and lubricate before use.

Do not store materials on structure in a manner that might cause
distortion or damage to members or supporting structures. Repair or
replace damaged materials or structures as directed.

# 1.06 PROJECT CONDITIONS

[Field Measurements]{.underline}: Check actual locations of walls and
other construction to which steel framing must fit, by accurate field
measurements before fabrication; show recorded measurements on final
shop drawings.

# 

# 

# PART 2 - PRODUCTS

# 2.01 MATERIALS 

A. [Metal Surfaces, General]{.underline}: For fabrication of work that
will be exposed to view, use only materials that are smooth and free of
surface blemishes including pitting, rust and scale seam marks, roller
marks, rolled trade names, and roughness. Remove such blemishes by
grinding, or by welding and grinding, prior to cleaning, treating, and
applying surface finishes.

B. [Structural Steel Shapes, Plates, and Bars]{.underline}: ASTM A572,
Grade 50

C. [Cold-Formed Steel Tubing]{.underline}: ASTM A500, Grade B.

D. [Hot-Formed Steel Tubing]{.underline}: ASTM A501.

E. [Steel Pipe]{.underline}: ASTM A53, Type E or S, Grade B: or ASTM
A501.

Finish: Black, except where indicated to be galvanized.

F. [Stainless Steel Plate]{.underline}: ASTM A167, Type 304.

G. [Stainless Steel Shapes]{.underline}: ASTM A276, Type 304.

H. [Steel Castings]{.underline}: ASTM A27, Grade 65-35, medium-strength
carbon steel.

I. [Headed Stud-Type Shear Connectors]{.underline}: ASTM A108, Grade
1015 or 1020, cold-finished carbon steel with dimensions complying with
AISC Specifications.

J. [Anchor Bolts]{.underline}: ASTM A36 , threaded rod unless otherwise
indicated.

K. [Unfinished Threaded Fasteners]{.underline}: ASTM A307, Grade A,
regular low-carbon steel bolts and nuts; provide hexagonal heads and
nuts for all connections.

L. [High-Strength Threaded Fasteners]{.underline}: Heavy hexagon
structural bolts, heavy hexagon nuts, and hardened washers, as follows:

1\. Quenched and tempered medium-carbon steel bolts, , complying with
ASTM A325. Bolts shall be load indicator type with twist-off spline.

2\. Carbon and alloy steel nuts complying with ASTM A563.

3\. Hardened steel washers complying with ASTM F436.

4\. Where indicated as galvanized, provide units that are zinc-coated,
either mechanically deposited complying with ASTM B695, Class 50, or
hot-dip galvanized complying with ASTM A153. Galvanized bolts shall be
hexagon head standard bolts.

5\. Stainless steel bolts conforming to ASTM F593, Type 304.

6\. Stainless steel nuts conforming to ASTM F594, Type 304.

M. [Electrodes for Welding]{.underline}: Comply with AWS Code.

N. [Structural Steel Primer Paint]{.underline}: Red oxide, lead- and
cadmium-free, corrosion-inhibiting primer complying with performance
requirements of FS TT-P-664.

O. [Nonmetallic Shrinkage-Resistant Grout]{.underline}: Premixed,
nonmetallic, noncorrosive, nonstaining product containing selected
silica sands, Portland cement, shrinkage compensating agents,
plasticizing and water-reducing agents, complying with ASTM C1107
(formerly referenced as CE CRD C621).

Subject to compliance with requirements, products that may be
incorporated in the work include, but are not limited to, the following:

100 Non-Shrink Grout (Non-Metallic) - Conspec, Inc.

Crystex - L & M Construction Chemicals, Inc.

Euco N-S Grout - Euclid Chemical Co.

Kemset - Chem-Masters Corp.

Sonogrout - Sonneborn Building Products Div., Rexnord Chemical Products,
Inc.

Supreme Grout - Cormix, Inc.

Sure-Grip High Performance Grout - Dayton Superior

Vibropruf #11 - Lambert Corp.

# 2.02 FABRICATION 

A. [Shop Fabrication and Assembly]{.underline}: Fabricate and assemble
structural assemblies in shop to greatest extent possible. Fabricate
items of structural steel in accordance with AISC Specifications and as
indicated on final shop drawings. Provide camber in structural members
where indicated.

1\. Properly mark and match-mark materials for field assembly. Fabricate
for delivery sequence that will expedite erection and minimize field
handling of materials.

2\. Where finishing is required, complete assembly, including welding of
units, before start of finishing operations. Provide finish surfaces of
members exposed in final structure free of markings, burrs, and other
defects.

B. [Connections]{.underline}: Weld or bolt shop connections, as
indicated.

1\. Bolt field connections, except where welded connections or other
connections are indicated.

2\. Provide high-strength threaded fasteners, unless otherwise
indicated.

C. [High-Strength Bolted Connections]{.underline}: Install high-strength
threaded fasteners in accordance with AISC \"Specifications for
Structural Joints using ASTM A325 or A490 Bolts\".

D. [Welded Construction]{.underline}: Comply with AWS Code for
procedures, appearance and quality of welds, and methods used in
correcting welding work.

E. [Shear Connectors]{.underline}: Prepare steel surfaces as recommended
by manufacturer of shear connectors. Weld shear connectors in field,
spaced as shown, to beams and girders in composite construction. Use
automatic end welding of headed stud shear connectors in accordance with
manufacturer\'s printed instructions.

F. [Steel Wall Framing]{.underline}: Select members that are true and
straight for fabrication of steel wall framing. Straighten as required
to provide uniform, square, and true members in complete wall framing.

Build up welded door frames attached to structural steel framing. Weld
exposed joints continuously and grind smooth. Plug-weld steel bar stops
to frames, except where shown removable. Secure removable stops to
frames with countersunk, cross-recessed head machine screws, uniformly
spaced not more than 10 inches (25 cm) o.c., unless otherwise indicated.

G. [Holes for Other Work]{.underline}: Provide holes required for
securing other work to structural steel framing and for passage of other
work through steel framing members, as shown on final shop drawings.

1\. Provide threaded nuts welded to framing and other specialty items as
indicated to receive other work.

2\. Cut, drill, or punch holes perpendicular to metal surfaces. Do not
flame-cut holes or enlarge holes by burning. Drill holes in bearing
plates.

# 2.03 SHOP PAINTING 

A. [General]{.underline}: Shop-paint structural steel, except those
members or portions of members to be embedded in concrete or mortar.
Paint embedded steel that is partially exposed on exposed portions and
initial 2 inches (51 mm) of embedded areas only.

1\. Do not paint surfaces to be welded or high-strength bolted with
friction-type connections.

2\. Do not paint surfaces scheduled to receive sprayed-on fireproofing.

3\. Apply 2 coats of paint to surfaces that are inaccessible after
assembly or erection. Change color of second coat to distinguish it from
first.

B. [Surface Preparation]{.underline}: After inspection and before
shipping, clean steelwork to be painted. Remove loose rust, loose mill
scale, and spatter, slag, or flux deposits. Clean steel in accordance
with SSPC as follows:

SP-1 \"Solvent Cleaning\"

SP-2 \"Hand-Tool Cleaning\"

SP-3 \"Power-Tool Cleaning\"

C. [Painting]{.underline}: Immediately after surface preparation, apply
structural steel primer paint in accordance with manufacturer\'s
instructions and at a rate to provide dry film thickness of not less
than 3.0 mils. Use painting methods that result in full coverage of
joints, corners, edges, and exposed surfaces.

# 2.04 SOURCE QUALITY CONTROL 

[Materials and fabrication procedures]{.underline} are subject to
inspection and tests in mill, shop, and field, conducted by a qualified
inspection agency. Such inspections and tests will not relieve
Contractor of responsibility for providing materials and fabrication
procedures in compliance with specified requirements. Promptly remove
and replace materials or fabricated components that do not comply.

# PART 3 - EXECUTION

# 3.01 ERECTION 

A. [Temporary Shoring and Bracing]{.underline}: Provide temporary
shoring and bracing members with connections of sufficient strength to
bear imposed loads. Remove temporary members and connections when
permanent members are in place and final connections are made. Provide
temporary guy lines to achieve proper alignment of structures as
erection proceeds.

B. [Anchor Bolts]{.underline}: Furnish anchor bolts and other connectors
required for securing structural steel to foundations and other in-place
work.

Furnish templates and other devices as necessary for presetting bolts
and other anchors to accurate locations.

Anchor bolt placement tolerances shall be in accordance with AISC "Code
of Standard Practice for Steel Buildings and Bridges."

C. [Setting Bases and Bearing Plates]{.underline}: Clean concrete and
masonry bearing surfaces of bond-reducing materials and roughen to
improve bond to surfaces. Clean bottom surface of base and bearing
plates.

1\. Set loose and attached base plates and bearing plates for structural
members on wedges or other adjusting devices.

2\. Tighten anchor bolts after supported members have been positioned
and plumbed. Do not remove wedges or shims, but if protruding, cut off
flush with edge of base or bearing plate prior to packing with grout.

3\. Pack grout solidly between bearing surfaces and bases or plates to
insure that no voids remain. Finish exposed surfaces, protect installed
materials, and allow to cure.

4\. For proprietary grout materials, comply with manufacturer\'s written
instructions.

D. [Field Assembly]{.underline}: Set structural frames accurately to
lines and elevations indicated and in accordance with AISC
Specifications. Align and adjust various members forming part of
complete frame or structure before permanently fastening. Clean bearing
surfaces and other surfaces that will be in permanent contact before
assembly. Perform necessary adjustments to compensate for discrepancies
in elevations and alignment.

1\. Level and plumb individual members of structures within specified
AISC tolerances.

2\. Establish required leveling and plumbing measurements on mean
operating temperature of structure. Make allowances for difference
between temperature at time of erection and mean temperature at which
structure will be when completed and in service.

3\. Splice members only where indicated and accepted on shop drawings.

4\. Comply with AISC Specifications for bearing, adequacy of temporary
connections, alignment, and removal of paint on surfaces adjacent to
field welds.

5\. Do not enlarge unfair holes in members by burning or by using drift
pins, except in secondary bracing members. Ream holes that must be
enlarged to admit bolts. Notify SDR prior to any field modifications.

E. [Gas Cutting]{.underline}: Do not use gas cutting torches in field
for correcting fabrication errors in primary structural framing. Cutting
will be permitted only on secondary members that are not under stress,
as acceptable to the SDR. Finish gas-cut sections equal to a sheared
appearance when permitted. Comply with NFPA 51B for cutting processes.

F. [Touch-Up Painting]{.underline}: Immediately after erection, clean
field welds, bolted connections, and abraded areas of shop paint. Apply
paint to exposed areas using same material as used for shop painting.

Apply by brush or spray to provide minimum dry film thickness of 3.0
mils.

Galvanized surfaces shall be touched-up with paint with not less than 94
percent zinc dust by weight, and complying with SSPC-Paint-20.

# 

# 3.02 QUALITY CONTROL 

A. [Sandia National Laboratories]{.underline} (SNL) may engage an
independent testing and inspection agency to inspect high-strength
bolted connections and welded connections and to perform tests and
prepare test reports.

1\. Testing agency shall conduct and interpret tests, state in each
report whether test specimens comply with requirements, and specifically
state any deviations therefrom.

2\. Provide access for testing agency to places where structural steel
work is being fabricated or produced so required inspection and testing
can be accomplished.

3\. Testing agency may inspect structural steel at plant before
shipment. SNL reserves the right, at any time before final acceptance,
to reject materials not complying with specified requirements.

B. [Correct Deficiencies]{.underline} in structural steel work that
inspections and laboratory test reports have indicated are not in
compliance with requirements. Perform additional tests, at Contractor\'s
expense, as necessary to reconfirm any noncompliance of original work
and to show compliance of corrected work.

C. [Shop-Bolted and Field-Bolted Connections]{.underline}: Inspect or
test in accordance with AISC Specifications.

Install bolts in accordance with AISC "Specification for Structural
Joints."

Galvanized bolts shall be installed using turn-of-the-nut method.

D. [Shop Welding and Field Welding]{.underline}: Inspect and test during
fabrication for shop welding and during erection for field welding, of
structural steel assemblies, as follows:

1\. Certify welders and conduct inspections and tests as required.
Record types and locations of defects found in work. Record work
required and performed to correct deficiencies.

2\. Perform visual inspection of all welds.

3\. Perform tests up to and including 100% of welds at SNL\'s option.
Inspection procedures may include the following:

a\. [Liquid Penetrant Inspection]{.underline}: ASTM E165.

b\. [Magnetic Particle Inspection]{.underline}: ASTM E709; performed on
root pass and on finished weld. Cracks or zones of incomplete fusion or
penetration are not acceptable.

c\. [Radiographic Inspection]{.underline}: ASTM E94 and ASTM E142;
minimum quality level \"2-2T\".

d\. [Ultrasonic Inspection]{.underline}: ASTM E164.

4\. Acceptance criteria shall be as specified in AWS D1.1.

5\. Weld inspections shall be performed by an AWS certified weld
inspector.

END OF SECTION