SECTION 05120

STRUCTURAL STEEL

PART 1 GENERAL

SECTION INCLUDES

Structural steel framing members, [support members,] [suspension cables,] [sag rods,] [struts,][.] [and] [__________.]

Baseplates, [shear stud connectors,] [expansion joint plates,] [and] [____________________].

Grouting under baseplates.

PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS SECTION

Section [_____-__________]: Anchors for casting into concrete.

Section [_____-__________]: Anchors for embedding into masonry.

RELATED SECTIONS

Section [_____-__________]: Precast concrete anchorage devices for attachment to structural steel

Section 05210 - Steel Joists.

Section 05311 - Steel Roof Deck: Support framing for small openings in roof deck.

Section 05313 - Steel Floor Deck: Support framing for small openings in floor deck.

Section 05500 - Metal Fabrications: Non-framing fabrications affecting structural steel work.

Section [_____-__________]: Fireproofing.

Section 09900 - Painting: Finish painting.

REFERENCES

ASTM A36 - Structural Steel.

ASTM A53 - Hot-Dipped, Zinc-coated Welded and Seamless Steel Pipe.

ASTM A108 - Steel Bars, Carbon, Cold-Finished, Standard Quality.

ASTM A123 - Zinc (Hot Dipped Galvanized) Coatings on Iron and Steel Products.

ASTM A153 - Zinc Coating (Hot Dip) on Iron and Steel Hardware.

ASTM A307 - Carbon Steel Externally Threaded Standard Fasteners.

ASTM A325 - High Strength Bolts for Structural Steel Joints.

ASTM A490 - Quenched and Tempered Alloy Steel Bolts for Structural Steel Joints.

ASTM A500 - Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Round and Shapes.

ASTM A501 - Hot-Formed Welded and Seamless Carbon Steel Structural Tubing.

ASTM A502 - Steel Structural Rivets.

ASTM A572 - High Strength Low Alloy Columbium-Vanadium Steel of Structural Quality.

AWS A2.0 - Standard Welding Symbols.

AWS D1.1 - Structural Welding Code.

AISC - Specification for the Design, Fabrication and Erection of Structural Steel for Buildings.

AISC - Specification for Architectural Exposed Structural Steel.

SSPC - Steel Structures Painting Council.

SUBMITTALS

Submit under provisions of Section [01300.] [01340.]

Shop Drawings:

Indicate [profiles, sizes, spacing, and locations of structural members] [openings] [attachments] [fasteners].

[Connections.] [Connections not detailed.]

[Cambers] [loads][,][.] [and] [____________________.]

Indicate welded connections with AWS A2.0 welding symbols. Indicate net weld lengths.

Manufacturer's Mill Certificate: Submit under provisions of Section [01400] [01405] certifying that [products] [__________] meet or exceed [specified requirements.] [________________.]

Mill Test Reports: Submit under provisions of Section [01400] [01405] Manufacturer's Certificates, indicating structural strength, destructive and non-destructive test analysis[,][.] [and] [__________.]

Welders' Certificates: Submit under provisions of Section [01400] [01405] Manufacturer's Certificates, certifying welders employed on the Work, verifying AWS qualifications within the previous 12 months.

QUALITY ASSURANCE

Fabricate structural steel members in accordance withAISC - Specification for the Design, Fabrication and Erection of Structural Steel for Buildings.

Perform Work in accordance with AISC - Specification for Architectural Exposed Structural Steel.

Maintain [one] [_____] copy of [each] document on site.

QUALIFICATIONS

Fabricator: Company specializing in performing the work of this Section with minimum [_____] years [documented] experience.

Erector: Company specializing in performing the work of this Section with minimum [_____] years [documented] experience.

Design connections not detailed on the Drawings under direct supervision of a Professional Structural Engineer experienced in design of this work and licensed [at the place where the Project is located.] [in the State of [_______________].]

FIELD MEASUREMENTS

Verify that field measurements are as [shown on [Drawings] [shop drawings].] [instructed by the manufacturer.]

PART 2 PRODUCTS

MATERIALS

Structural Steel Members: ASTM [A36.] [A572, Grade 50.] [_______________.]

Structural Tubing: [ASTM A500, Grade [B] [_____].] [ASTM A501.]

Pipe: [ASTM A53, Grade B.] [_______________.]

Shear Stud Connectors: [ASTM A108, Grade [1015] [_____],] forged steel, headed, uncoated, [_______________].

Suspension Cable: [_______________.]

Bolts, Nuts, and Washers: ASTM [A307] [A325] [A490] [galvanized to ASTM A153 for galvanized members].

Anchor Bolts: ASTM A307.

Rivets: ASTM A502; high strength [hot-driven] type or [carbon] [carbon-maganese] steel.

Welding Materials: AWS D1.1; type required for materials being welded.

Sliding Bearing Plates: [Teflon coated.] [__________.]

Grout: Non-shrink type, pre-mixed compound consisting of non-metallic aggregate, cement, water reducing and plasticizing additives, capable of developing a minimum compressive strength of [7,000] [_____] psi ([48] [_____] mPa) at 28 days; [______________] manufactured by [____________________.]

Shop and Touch-Up Primer: [SSPC Paint 15, Type 1, red oxide.] [__________.]

****** [OR] ******

Touch-up Primer for Galvanized Surfaces: Zinc rich type.

FABRICATION

Space shear stud connectors at [_____] inches ([_____] mm) oc.

Continuously seal joined members by [intermittent welds and plastic filler.] [continuous welds.] Grind exposed welds smooth.

FINISH

Prepare structural component surfaces in accordance with SSPC SP-[2] [_____.]

Shop prime structural steel members.	Do not prime surfaces that will be [fireproofed.] [field welded.] [in contact with concrete.] [high strength bolted.]

****** [OR] ******

Leave structural steel members unprimed.

****** [OR] ******

Galvanize structural steel members to ASTM A123.	[Provide minimum [1.25] [_____] oz/sq ft ([380] [_____] g/sq m) galvanized coating.]

SOURCE QUALITY CONTROL AND TESTS

[Testing] [and] [analysis] of components will be performed under provisions of Section [01400.] [01410.]

PART 3 EXECUTION

ERECTORS

[___________________________________.]

[___________________________________.]

[___________________________________.]

EXAMINATION

Verify that field conditions are acceptable and are ready to receive work.

Beginning of installation means erector accepts existing conditions.

ERECTION

Allow for erection loads, and for sufficient temporary bracing to maintain structure safe, plumb, and in true alignment until completion of erection and installation of permanent bracing.

Field weld components [and shear studs] indicated on [Drawings.] [shop drawings.]

Do not field cut or alter structural members without approval of Architect/Engineer.

After erection, prime welds, abrasions, and surfaces not [shop primed] [galvanized], except surfaces to be in contact with concrete.

Grout [under baseplates] [_______________] in accordance with Section [__________.]

ERECTION TOLERANCES

Maximum Variation From Plumb: [1/4] [_____] inch ([6] [_____] mm) per story, non-cumulative.

Maximum Offset From True Alignment: [1/4] [_____] inch ([6] [_____] mm).

FIELD QUALITY CONTROL

Field inspection will be performed under provisions of Section [01400.] [01410.]

END OF SECTION