05 50 15.pdf

Emsworth Back Channel Dam Abutment Stabilization EMSBCRA Right Abutment

SECTION TABLE OF CONTENTS

DIVISION 05 - METALS

SECTION 05 50 15

CIVIL WORKS FABRICATIONS

PART 1 GENERAL

1.1 SUMMARY

1.2 REFERENCES

1.3 SUBMITTALS

1.4 DELIVERY, STORAGE, AND HANDLING

1.5 FABRICATION AND WORKMANSHIP REQUIREMENTS

1.6 QUALIFICATION OF WELDERS AND WELDING OPERATORS

PART 2 PRODUCTS

2.1 MISCELLANEOUS METALS AND STANDARD METAL ARTICLES

2.1.1 Structural Steel

2.1.1.1 Structural Shapes

2.1.1.2 Structural Tubing

2.1.1.3 Steel Plates

2.1.1.4 Bars

2.1.2 Steel Pipes

2.2 MANUFACTURED UNITS

2.2.1 Bolts, Nuts, and Washers

2.2.1.1 High-Strength Bolts, Nuts, and Washers

2.2.1.2 Bolts, Nuts, and Washers

2.3 SHOP FABRICATED METAL ITEMS

2.3.1 Handrailing

2.3.2 Bollards

2.4 TESTS, INSPECTIONS, AND VERIFICATIONS

PART 3 EXECUTION

3.1 FABRICATION

3.1.1 Structural Fabrication

3.1.2 Welding

3.1.3 Bolted Connections

3.1.4 Machine Work

3.1.5 Miscellaneous Provisions

3.1.6 Fabrications

3.1.6.1 Shop Assembly

3.1.6.2 Shop Tests and Inspections

3.1.6.3 Protection of Finished Work

3.2 INSTALLATIONS

3.2.1 General

3.2.2 Installation of Bollards

3.3 CONTRACTOR QUALITY CONTROL

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SECTION 05 50 15

CIVIL WORKS FABRICATIONS

PART 1 GENERAL

1.1 SUMMARY

This section addresses the requirements for miscellaneous metal items of the work performed under this contract.

1.2 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only.

ASTM INTERNATIONAL (ASTM)

ASTM A 325 (2006) Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength

ASTM A 36/A 36M (2004) Carbon Structural Steel

ASTM A 501 (2007) Standard Specification for Hot-Formed Welded and Seamless Carbon Steel Structural Tubing

ASTM A 53/A 53M (2006a) Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A 108 (2003e1) Steel Bars, Carbon, Cold Finished, Standard Quality

ASTM A 123/A 123M (2002) Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A 193/A 193M (2008b) Standard Specification for Alloy-Steel and Stainless Steel Bolting Materials for High-Temperature Service

ASTM A 307 (2004e1) Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength

ASTM A 500 (2003a) Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A 563 (2004a) Carbon and Alloy Steel Nuts

ASTM A 572/A 572M (2006) High-Strength Low-Alloy Columbium-Vanadium Structural Steel

ASTM A 576 (1990b; R 2006) Steel Bars, Carbon, Hot-Wrought, Special Quality

ASTM A 992/A 992M (2006a) Structural Steel Shapes

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ASTM B 22 (2002) Bronze Castings for Bridges and Turntables

ASTM B 584 (2004) Copper Alloy Sand Castings for General Applications

ASTM F 436 (2004) Hardened Steel Washers

ASTM F 593 (2002e2) Stainless Steel Bolts, Hex Cap Screws, and Studs

ASTM F 594 (2002) Stainless Steel Nuts

ASTM F 959 (2004) Compressible-Washer-Type Direct Tension Indicators for Use with Structural Fasteners

ASME INTERNATIONAL (ASME)

ASME B18.2.1 (1996; R 2005) Square and Hex Bolts and Screws (Inch Series)

ASME B18.2.2 (1987; R 2005) Square and Hex Nuts

ASME B18.21.1 (1999; R 2005) Lock Washers (Inch Series)

ASME B18.22.1 (1965; R 2003) Plain Washers

THE SOCIETY FOR PROTECTIVE COATINGS (SSPC)

SSPC SP 2 (1982; E 2004) Hand Tool Cleaning

SSPC SP 3 (2004; E 2004) Power Tool Cleaning

SSPC SP 6 (2007) Commercial Blast Cleaning

SSPC SP 10 (2007) Near-White Blast Cleaning

1.3 SUBMITTALS

Government approval is required for all submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Miscellaneous Metals and Standard Metal Articles; G|TS Shop Fabricated Metal Items; G|TS

Detail drawings shall include fabrication drawings, assembly drawings, and delivery drawings.

a. Fabrication Drawings. These drawings shall show complete details of each piece of the structural unit that identifies the material(s), tolerances, connections, machined surface finishes, and proposed welding sequences which clearly differentiate shop

W911WN-09-B-0007 SECTION 05 50 15 Page 2 welds and field welds. Each piece shall be mark numbered and matched to an assembly drawing showing the overall assembly of the structural unit including details of the connections. Fabrication drawings shall include drawings that present bills of materials (i.e. material schedules) that tabulates each piece, quantity, and weights. Fabrication drawings shall also include general notes related to fabrication.

b. Assembly Drawings. These drawings will present plan, elevation, and detail views of the fabricated unit so that it is clearly understood how each (mark numbered) piece (as shown on the fabrication drawings) is incorporated into the unit.

c. Delivery Drawings. These drawings shall provide descriptions of methods of delivering components to the site, including details for supporting fabricated components during shipping to prevent distortion or other damages.

Detail drawings shall be submitted to the Contracting Officer for review a minimum of 30 days prior to ordering materials. No materials shall be ordered until detail drawings are approved by the Contracting Officer.

SD-03 Product Data

Miscellaneous Metals and Standard Metal Articles; G|TS Shop Fabricated Metal Items; G|TS

Material orders, material lists, and material shipping bills shall be submitted at the time of submittal of detail drawings.

Submit manufacturer data on the paint system used for the bollards, as specified herein, and shall be approved prior to furnishing onsite.

SD-06 Test Reports

Miscellaneous Metals and Standard Metal Articles; G|TS Shop Fabricated Metal Items; G|TS

Certified test reports for materials tests and analyses.

1.4 DELIVERY, STORAGE, AND HANDLING

Delivery, handling, and storage of materials and fabricated items shall conform to the requirements specified herein and in Section 05 50 14 STRUCTURAL METAL FABRICATIONS. Protective wrappings and coverings shall not be removed until immediately prior to use in the work.

1.5 FABRICATION AND WORKMANSHIP REQUIREMENTS

Fabrication requirements and workmanship provisions for fabricated items, manufactured items, and standard articles shall conform with the requirements of Section 05 50 14 STRUCTURAL METAL FABRICATIONS, requirements specified in other technical sections, and those requirements specified herein.

1.6 QUALIFICATION OF WELDERS AND WELDING OPERATORS

Qualification of welders and welding operators shall conform to the

W911WN-09-B-0007 SECTION 05 50 15 Page 3 requirements of Section 05 50 14 STRUCTURAL METAL FABRICATIONS.

PART 2 PRODUCTS

2.1 MISCELLANEOUS METALS AND STANDARD METAL ARTICLES

Miscellaneous metal materials and standard metal articles shall conform to the respective specifications and other designated requirements. Sizes shall be as specified or shown. Where material requirements are not specified, materials furnished shall be suitable for the intended use and shall be subject to approval by the Government.

2.1.1 Structural Steel

2.1.1.1 Structural Shapes

W-shapes and WT sections shall be ASTM A 992/A 992M steel, unless otherwise indicated on the drawings. Other rolled structural shapes, including channels, angles, and rods shall be ASTM A 36/A 36M steel, unless otherwise indicated on the drawings.

2.1.1.2 Structural Tubing

Structural tubing, HSS sections, shall be ASTM A 500, Grade B.

2.1.1.3 Steel Plates

Steel plates shall be ASTM A 572/A 572M, Grade 50, or ASTM A 36/A 36M as indicated on the drawings.

2.1.1.4 Bars

Steel bars shall be ASTM A 108, UNS G10180, or ASTM A 576, UNS G10100, or as indicated on the drawings for the particular item.

2.1.2 Steel Pipes

Steel pipe shall be ASTM A 53/A 53M, Grade B, seamless, nominal size and weight class, or outside diameter and nominal wall thickness, as shown.

2.2 MANUFACTURED UNITS

2.2.1 Bolts, Nuts, and Washers

Bolts, nuts, and washers shall be of the material, grade, type, class, style and finish, indicated or best suited, for intended use.

2.2.1.1 High-Strength Bolts, Nuts, and Washers

ASTM A 325, Type I, 3/4-inch diameter, unless shown or noted otherwise.

Nuts shall conform to ASTM A 563, and washers shall conform to ASTM F 436 or ASTM F 959, except where shown or noted otherwise.

2.2.1.2 Bolts, Nuts, and Washers

a. Bolts - ASTM A 307, Grade A. When galvanizing is shown or noted, the article shall be hot-dip galvanized as specified in ASTM A 123/A 123M or ASTM F 593. Bolts shall be manufactured in accordance with ASME B18.2.1.

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b. Nuts - ASTM A 563, Grade A, hot-dip galvanized, or ASTM F 594, Alloy Group 1, Alloy No. UNS S30400, as indicated on the drawings. Nuts shall be manufactured in accordance with ASME B18.2.2.

c. Washers - ASTM F 436.

(1.) Plain Washers - ASME B18.22.1, Type B.

(2.) Lock Washer - ASME B18.21.1.

(3.) Beveled Washers - ASTM F 436, Beveled.

(4.) Thrust Washers - ASTM B 22 or ASTM B 584, and shall be similar to Lubrite Alloy No. 424, or an approved equal.

2.3 SHOP FABRICATED METAL ITEMS

Shop fabricated metal items shall conform to the requirements and details as specified or shown and to the workmanship provisions and other applicable fabrication requirements as specified in other sections of the specifications and in Section 05 50 14 STRUCTURAL METAL FABRICATIONS.

2.3.1 Handrailing

Steel handrail for installation on the top of the abutment wall shall be of steel pipe specified herein. The rail shall be installed complete with all fittings, brackets, fasteners, sleeves, anchors, and other appurtenances.

Rigid joints in rails shall be of welded assembly and shall be flush-finished. Welded joints shall be assembled by mitering and welding joining rails and posts. Threaded joints will not be acceptable.

Expansion joints in railings shall be an inner-sleeved slip-joint, with one end of the sleeve secured to one rail and the ends of the adjoining rails separated a minimum of 1-inch in the installed position. Handrail shall be installed in accordance with Section 03 20 02 STEEL BARS, WELDED WIRE

FABRIC, AND ACCESSORIES FOR CONCRETE REINFORCEMENT.

2.3.2 Bollards

Bollards shall be constructed of ASTM A 53/A 53M, Type E or S, Grade B, steel pipe or ASTM A 501 round tubing, and shall be Schedule 80. Stainless steel anchor rods shall be in accordance with ASTM A 193/A 193M, Grade B7, fully threaded. Concrete used in the concrete base and as pipe fill shall be in accordance with Section 03 31 01.00 10 CONCRETE AND OTHER CONCRETE SECTIONS and shall have a 28-day compressive strength of 4,000 psi. Welded wire fabric shall be in accordance with Section 03 20 02 STEEL BARS, WELDED WIRE FABRIC, AND ACCESSORIES FOR CONCRETE REINFORCEMENT. Paint bollards with a safety yellow epoxy-based paint coating system. Paint and color shall be approved by the Contracting Officer prior to furnishing onsite.

2.4 TESTS, INSPECTIONS, AND VERIFICATIONS

Tests, inspections, and verifications for materials shall conform to the requirements specified herein and in Section 05 50 14 STRUCTURAL METAL

FABRICATIONS.

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PART 3 EXECUTION

3.1 FABRICATION

3.1.1 Structural Fabrication

Structural fabrication shall conform with the requirements shown on the drawings and specified herein and in Section 05 50 14 STRUCTURAL METAL FABRICATIONS. Dimensional tolerances shall be as specified and shown on the drawings. Pin holes shall be bored in components after welding, straightening, stress-relieving, and threading operations are completed.

Brackets, eye bar sections, and other components requiring straightening shall be straightened by methods which will not damage the material.

Provisions shall be made for the installation of appurtenances as required.

3.1.2 Welding

Welding and non-destructive testing of welds shall conform with the requirements specified herein and in Section 05 50 14 STRUCTURAL METAL FABRICATIONS. Welds shall be of the type shown on the contract drawings and approved detail drawings.

3.1.3 Bolted Connections

Bolted connections shall conform with the requirements specified in Section

05 50 14 STRUCTURAL METAL FABRICATIONS.

3.1.4 Machine Work

Machine work shall conform with the requirements specified in Section

05 50 14 STRUCTURAL METAL FABRICATIONS.

3.1.5 Miscellaneous Provisions

Miscellaneous provisions for fabrication shall conform with the requirements specified herein and in Section 05 50 14 STRUCTURAL METAL

FABRICATIONS.

3.1.6 Fabrications

3.1.6.1 Shop Assembly

Shop assembly requirements shall be as shown on the drawings and as specified herein and in Section 05 50 14 STRUCTURAL METAL FABRICATIONS, in order to determine the correctness of the fabrication, matching of component parts, and that necessary clearances and tolerances have been provided. Surfaces requiring lubrication shall be thoroughly cleaned and lubricated with an approved lubricant before assembly and installation.

3.1.6.2 Shop Tests and Inspections

The Contracting Officer will examine all fabricated items in the shop prior to shipment to the project site. Fabricated items will be examined to determine whether or not the workmanship conforms to the specification requirements.

3.1.6.3 Protection of Finished Work

Protection of finished work shall conform to the requirements of Section

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05 50 14 STRUCTURAL METAL FABRICATIONS.

3.2 INSTALLATIONS

3.2.1 General

Fabricated items shall be installed in accordance with the details shown on the drawings.

Fabricated items shall be installed in a sequence determined by the Contractor, but consistent with the conditions of work described in Section 01 11 00 GENERAL REQUIREMENTS.

All work shall be performed safely in accordance with Section 01 35 26

GOVERNMENTAL SAFETY REQUIREMENTS.

3.2.2 Installation of Bollards

Excavate holes for bollards in accordance with Section 31 00 00 EARTHWORK.

Set steel and anchor rod for bollards vertically in the excavated hole, and place reinforcement in accordance with Section 03 20 02 STEEL BARS, WELDED WIRE FABRIC, AND ACCESSORIES FOR CONCRETE REINFORCEMENT. Place concrete in the excavated hole for the concrete base and fill the steel pipe or tubing in accordance with Section 03 31 01.00 10 CONCRETE AND OTHER CONCRETE SECTIONS. Provide rounded mound as shown on the drawings at the top of the steel pipe or tubing. Prepare the surface of the steel bollards for painting in accordance with SSPC SP 2, SSPC SP 3, SSPC SP 6, or SSPC SP 10.

Apply approved paint system in accordance with the manufacturer's written recommendations, including one coat of manufacturer recommended primer and two coats of the approved paint.

3.3 CONTRACTOR QUALITY CONTROL

The Contractor shall establish and maintain, a quality control system for all installation operations. The Contractors QC system shall be in accordance with the applicable provision of Section 01 45 01 USACE QUALITY

CONTROL.

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