SECTION 051200 - STRUCTURAL STEEL FRAMING

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes structural steel.

B. Related Sections

1. Section 055000 "Metal Fabrications"

2. Section 099113 “Exterior Painting”
3. Section 099123 “Interior Painting”
4. Section 099600 "High-Performance Coatings"

1.2 REFERENCES

A. SASO – Saudi Arabian Standards Organization

SASO 39 Mechanical testing of welded joints

SASO 336 Industrial safety and health regulations - Welding,
cutting, and brazing.
SASO 1012 Test methods of welded plain-end steel tubes and
pipes for general use.
SASO 1013 Welded plain-end steel tubes and pipes for general
use.

B. SBC – Saudi Building code

SBC 306 - 18 Steel Structures

C. American Institute of Steel Construction

AISC 303 Code of Standard Practice for Steel Buildings and Bridges
AISC 325 Steel Construction Manual
AISC 326Specifications for the Design, Fabrication and Erection of
Structural Steel for Buildings
AISC 360 Specifications for Structural Steel Buildings
ANSI/AISC 341 Seismic Provisions for Structural Steel Buildings Including
Supplement No. 1

D. American Welding Society

AWS D1.1 Structural Welding Code - Steel

AWS D1.8 Structural Welding Code-Seismic Supplement

E. ANSI - American National Standards Institute, Inc.

ANSI B18.22.1 Plain Washers

F. ASTM International

ASTM A 36 Specification for Carbon Structural Steel

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 ASTM A 53 Specification for Pipe, Steel, Black and Hot-Dipped,
Zinc-Coated, Welded and Seamless
ASTM A 108 Specification for Steel Bar, Carbon, Cold-Finished
ASTM A 153 Zinc Coating (Hot-Dip) on Iron and Steel hardware
ASTM A 307 Carbon Steel Bolts and Studs, 60,000 PSI Tensile
Strength
ASTM A 325 Specification for High-Strength Bolts for Structural Steel
Joints
ASTM A 490 Specification for Structural Bolts, Alloy Steel, Heat
Treated, 150 ksi Minimum Tensile Strength
ASTM A 500 Specification for Cold-Formed Welded and Seamless
Carbon Steel Structural Tubing in Rounds and Shapes
ASTM A 501 Hot-Formed Welded and Seamless Carbon Steel
Structural Tubing
ASTM A 563 Specification for Carbon and Alloy Steel Nuts [Metric]

ASTM A 572 High-Strength Low-Alloy Columbium-Vanadium Steels

of Structural Quality
ASTM A 588 High-Strength Low-Alloy Structural Steel with 50 ksi
(345 MPa) Minimum Yield Point to 4 In. (100 mm) Thick
ASTM A 618 Hot-Formed Welded and Seamless High Strength Low-
Alloy Structural Tubing
ASTM A 992 Specification for Structural Steel Shapes
ASTM C 1107 Specification for Packaged Dry, Hydraulic-Cement Grout
(Nonshrink)
ASTM E 94 Radiographic Examination
ASTM E 146 Ultrasonic Contact Examination of Weldments
ASTM E 709 Magnetic Particle Examination
ASTM F 436 Hardened Steel Washers
ASTM F 436 Specification for Hardened Steel Washers
ASTM F 959 Specification for Compressible-Washer-Type Direct
Tension Indicators for Use with Structural Fasteners
ASTM F 1554 Specification for Anchor Bolts, Steel, 36, 55, and 105-ksi
Yield Strength.
ASTM F3125 Standard Specification for High Strength Structural Bolts,
Steel and Alloy Steel, Heat Treated, 120 ksi (830 MPa)
and 150 ksi (1040 MPa) Minimum Tensile Strength, Inch
and Metric Dimensions

G. SSPC - Steel Structures Painting Council

SSPC SP 10 Near-White Blast Cleaning

SSPC PA 112000 Shop, Field and Maintenance Painting of Steel

1.3 DEFINITIONS

A. Structural Steel: Elements of structural-steel frame, as classified by

AISC 303, "Code of Standard Practice for Steel Buildings and Bridges."

1.4 PERFORMANCE REQUIREMENTS

A. Connections: Provide details of simple shear connections required by the

Contract Documents to be selected or completed by structural-steel

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 fabricator to withstand loads indicated and comply with other information
and restrictions indicated.

1. Select and complete connections using schematic details indicated,

AISC 360 and ANSI/AISC 341.

1.5 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Shop Drawings: Show fabrication of structural-steel components.

C. Qualification Data: For qualified testing agency.

D. Welding certificates.

E. Mill test reports for structural steel, including chemical and physical
properties.

F. Source quality-control reports.

1.6 SUSTAINABLE DESIGN SUBMITTALS

A. Section 018113 - Sustainable Design Requirements: Requirements for

sustainable design submittals.

B. Manufacturer's Certificate: Certify that the following products meet or

exceed specified sustainable design requirements.

C. Product Cost Data: Submit cost of products to verify compliance with

Project sustainable design requirements. Exclude cost of labor and
equipment to install products.

1. Provide cost data for the following products:

a. Salvaged, refurbished, and reused products.

b. Products with recycled material content.
c. Regional products.

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 CSE.

C. Welding Qualifications: Qualify procedures and personnel according to

AWS D1.1/D1.1M, "Structural Welding Code - Steel."

D. Comply with applicable provisions of the following specifications and

documents:

1. AISC 303.

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 2. AISC 360.
3. RCSC's "Specification for Structural Joints Using ASTM A 325 or
A 490 Bolts."

E. Preinstallation Conference: Conduct conference at Project site.

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 structure, structural steel in a manner that

might cause distortion, damage, deflection 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 SUSTAINABILITY CHARACTERISTICS

A. Section 018113 - Sustainable Design Requirements: Requirements for

sustainable design compliance.

B. Material and Resource Characteristics:

1. Recycled Content Materials: Furnish materials with maximum

available recycled content.
2. Regional Materials: Furnish materials extracted, processed, and
manufactured within 800 km of Project Site.

C. Indoor Environmental Quality Characteristics:

1. Paints and Coatings: Maximum VOC content according to product

and testing requirements of CA/DHS/EHLB/R-174.
2. Interior Anti-Corrosive Paints: Maximum VOC content according to
GC-03.

2.2 STRUCTURAL-STEEL MATERIALS

A. W-Shapes: ASTM A 992.

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 B. Channels, Angles, S-Shapes: ASTM A 36.

C. Plate and Bar: ASTM A 36.

D. Cold-Formed Hollow Structural Sections: ASTM A 500, Grade B, structural

tubing.

E. Galvanized Steel Sheet: Comply with requirements of ASTM A446, Grade

C, galvanized to ASTM A525, Class G90.

F. Steel Pipe: ASTM A 53, Type E or S, Grade B.

G. Hot rolled shapes: ASTM A 572 grade 50

H. 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; ASTM A 563, Class 8S heavy-hex carbon-steel nuts;
and ASTM F 436, Type 1, hardened carbon-steel washers; all with plain
finish.

1. Direct-Tension Indicators: ASTM F 959, Type 8.8, compressible-

washer type with plain finish.

B. High-Strength Bolts, Nuts, and Washers: ASTM A 490, Type 1, heavy-hex

steel structural bolts; ASTM A 563, Class 10S heavy-hex carbon-steel
nuts; and ASTM F 436, Type 1, hardened carbon-steel washers with plain
finish.

1. Direct-Tension Indicators: ASTM F 959, Type 10.9, compressible-

washer type with plain finish.

C. Shear Connectors: ASTM A 108, Grades 1015 through 1020, headed-stud

type, cold-finished carbon steel; AWS D1.1/D1.1M, Type B.

D. Anchor Rods: ASTM F 1554, Grade 36.

E. Threaded Rods: ASTM A 36.

F. Clevises and Turnbuckles: Made from cold-finished carbon steel bars,

ASTM A 108, Grade 1035.

2.4 PRIMER

A. Primer: Comply with Division 09 painting Sections.

2.5 GROUT

A. Metallic, Shrinkage-Resistant Grout: ASTM C 1107, factory-packaged,

natural aggregate grout, mixed with water to consistency suitable for
application and a 30-minute working time.

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2.6 FABRICATION

A. Structural Steel: Fabricate and assemble in shop to greatest extent

possible. Fabricate according to AISC's "Code of Standard Practice for
Steel Buildings and Bridges" and AISC 360.

B. Shear Connectors: Prepare steel surfaces as recommended by

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.

C. Thermal Cutting: Perform thermal cutting by machine to greatest extent

possible.

1. Plane thermally cut edges to be welded to comply with

requirements in AWS D1.1/D1.1M.

D. Bolt Holes: Cut, drill, mechanically thermal cut, or punch standard bolt
holes perpendicular to metal surfaces.

E. Finishing: Accurately finish ends of columns and other members

transmitting bearing loads.

F. Cleaning: Clean and prepare steel surfaces that are to remain unpainted
according to one of the following:

1. SSPC-SP 1, "Solvent Cleaning

2. SSPC-SP 2, "Hand Tool Cleaning
3. SSPC-SP 3, "Power Tool Cleaning."

G. Shear Connectors: Prepare steel surfaces as recommended by

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.

H. Holes: Provide holes required for securing other work to structural steel
and for other work to pass through steel framing 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.

2.7 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
type of bolt and type of joint specified.

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.

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2.8 SOURCE QUALITY CONTROL

A. Testing Agency: Contractor will engage an independent testing and

inspecting agency on the contractor’s expenses to perform tests and
inspections and prepare test reports.

1. Provide testing agency with access to places where structural-steel

work is being fabricated or produced to perform tests and
inspections.

B. Correct deficiencies in Work that test reports and inspections indicate does
not comply with the Contract Documents.

C. Bolted Connections: Shop-bolted connections will be tested and inspected

according to RCSC's "Specification for Structural Joints Using ASTM A 325
or A 490 Bolts."

D. Shop Welded Connections: Inspect and test during fabrication of structural

steel assemblies as follows:

1. Certify welders and conduct inspections and test required.

2. Record type and locations of defects found in work.
3. Record work required and performed to correct deficiencies.
4. Perform visual inspection of all welds.
5. Perform nondestructive test of welds on 10% of all fillet weld
lengths as a first testing round on its results, the Engineer might
instruct the contractor to extend the testing process and /or to
replace welder at no extra cost. Selection of tested samples to be
approved by Engineer. Non-destructive tests of butt welds to be
done on 100% of the welded lengths.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify, with steel Erector present, elevations of concrete- and masonry-

bearing surfaces and locations of anchor rods, bearing plates, and other
embedment’s for compliance with requirements.

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.

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 1. Flame cutting on site will not be permitted, except of small access
holes in structural beam or column webs.

B. Base Bearing and Leveling Plates: Clean concrete- and masonry-bearing

surfaces of bond-reducing materials, and roughen surfaces prior to setting
plates. Clean bottom surface of 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 or Pretension anchor rods after supported members
have been positioned and plumbed. Do not remove wedges or
shims but, if protruding, cut off flush with 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 grout and
allow to cure. Comply with manufacturer's written installation
instructions for shrinkage-resistant grouts.

C. Maintain erection tolerances of structural steel within AISC's "Code of

Standard Practice for Steel Buildings and Bridges."

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
type of bolt and type of joint specified.

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. Welded connection at site should be subject to Engineer approval.

3.5 FIELD QUALITY CONTROL

A. Testing Agency: Contractor will engage a qualified independent testing

and inspecting agency on the contractor’s expenses to perform shop test
and inspections and prepare test reports.

B. Bolted Connections: Bolted connections will be tested and inspected

according to RCSC's "Specification for Structural Joints Using ASTM A 325
or A 490 Bolts."

C. Shop Welded Connections: Inspect and test during fabrication of structural

steel assemblies as follows:

1. Certify welders and conduct inspections and test required.

2. Record type and locations of defects found in work
3. Record work required and performed to correct deficiencies.
4. Perform visual inspection of all welds.

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 5. Perform non-destructive test of welds on 10% of all fillet weld
lengths as a first testing round on its results, the Engineer might
instruct the contractor to extend the testing process and /or to
replace welder at no extra cost. Selection of tested samples to be
approved by Engineer. Non-destructive tests of butt welds to be
done on 100% of the welded lengths.

D. Correct deficiencies in Work that test reports and inspections indicate does
not comply with the Contract Documents.

END OF SECTION 051200

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