Specification Section 05 50 15.pdf

Tionesta Outflow Left Bank Long-Term Repair

SECTION TABLE OF CONTENTS

DIVISION 05 - METALS

SECTION 05 50 15

CIVIL WORKS FABRICATIONS

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 GENERAL REQUIREMENTS

1.4 QUALITY ASSURANCE

1.5 ENVIRONMENTAL REQUIREMENTS

PART 2 PRODUCTS

2.1 MISCELLANEOUS METALS AND STANDARD METAL ARTICLES

2.1.1 Bolts, Nuts, and Washers

2.2 SHOP FABRICATED METAL ITEMS

2.2.1 Steel Handrail

2.2.1.1 Materials

2.2.1.2 Fabrication

2.2.2 Sheet Pile Wall Cap

2.2.2.1 Materials

2.2.2.2 Fabrication

2.2.3 Surface Finishes

2.2.3.1 Galvanizing and Zinc Repair

2.3 Submittal Requirements

2.4 FENCING

2.4.1 Fabric

2.4.2 Wire Ties

2.5 BOTTOM TENSION WIRE

PART 3 EXECUTION

3.1 GENERAL INSTALLATION REQUIREMENTS

3.2 FINISHES

3.2.1 Field Preparation

3.3 ATTACHMENT OF SHEET PILE WALL CAP

3.4 ATTACHMENT OF HANDRAILS

3.5 FABRIC INSTALLATION

3.6 TIE WIRES

3.7 BOTTOM TENSION WIRE

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SECTION 05 50 15 Page 1 Amendment 0001

SECTION 05 50 15

CIVIL WORKS FABRICATIONS

PART 1 GENERAL

1.1 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM A53/A53M (2020) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A123/A123M (2017) Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

ASTM A500/A500M (2021) Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes

ASTM A572/A572M (2021; E 2021) Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel

ASTM A653/A653M (2020) Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

ASTM A780/A780M (2020) Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings

ASTM A924/A924M (2020) Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process

ASTM A1085/A1085M (2015) Standard Specification for Cold-Formed Welded Carbon Steel Hollow Structural Sections (HSS)

1.2 SUBMITTALS

Government approval is required for submittals with a "G" or "S" classification. Submittals not having a "G" or "S" classification are for information only. When used, a code following the "G" classification identifies the office that will review the submittal for the Government.

Submit the following in accordance with Section 01 33 00 SUBMITTAL

SECTION 05 50 15 Page 2

PROCEDURES:

SD-02 Shop Drawings

Shop Fabricated Metal Items; G, DO

Shop drawings, samples, lists of materials, certified test reports for materials tests and analyses, disposition records, and other Contractor submittals shall be submitted for approval. Samples of standard or fabricated items shall be full size and complete as required for installation in the work, and may be installed in the work, provided each sample is clearly identified and its location recorded. Shop drawings with specified items and dimensions provided herein and manufacturer's product information shall be submitted for all the following items (professional engineer seal not required);

a. Galvanized Steel Handrail (Incl. all Hardware)

b. Sheet Pile Wall Cap (Incl. all Hardware)

c. All Miscellaneous Metal Items

SD-03 Product Data

Miscellaneous Metal Items, Materials and Standard Articles; G, DO

The Contractor shall submit manufacturer data, catalog cuts, and other literature that confirm the materials incorporated into the work described herein, conform to these specifications.

Manufacturer's information shall be furnished for the following materials as applicably incorporated into the work:

Shop Fabricated Metal Items; G, DO

SD-07 Certificates

Miscellaneous Metal Items, Materials and Standard Articles; G, RO

The Contractor shall submit manufacturer signed certification that the materials incorporated into fabricated parts or other standards articles, described herein, conform to these specifications. Certifications shall be furnished for the all materials as applicably incorporated into the work.

1.3 GENERAL REQUIREMENTS

The Contractor shall verify all measurements and shall take all field measurements necessary before fabrication. Items specified to be galvanized, when practicable and not indicated otherwise, shall be hot-dip galvanized after fabrication. Galvanizing shall be in accordance with ASTM A 123/A 123M, ASTM A 653/A 653M, or ASTM A 924/A 924M, as applicable.

Exposed fastenings shall be compatible materials, shall generally match in color and finish, and shall harmonize with the material to which fastenings are applied. Materials and parts necessary to complete each item, even though such work is not definitely shown or specified, shall be included.

Poor matching of holes for fasteners shall be cause for rejection.

Fastenings shall be concealed where practicable. Thickness of metal and details of assembly and supports shall provide strength and stiffness.

Joints exposed to the weather shall be formed to exclude water.

SECTION 05 50 15 Page 3

1.4 QUALITY ASSURANCE

a. Form miscellaneous metalwork to shape and size, with sharp lines and angles and true curves. Drill and punch producing clean true lines and surfaces. Provide exposed surfaces of work in place with a smooth finish, and unless otherwise approved. Where tight fits are required, mill joints. Cope or miter corner joints, well formed, and in true alignment. Accurately set work to established lines and elevations and securely fastened in place. Install in accordance with manufacturer's installation instructions and approved drawings, cuts, and details.

1.5 ENVIRONMENTAL REQUIREMENTS

Do not clean or paint surface when damp or exposed to foggy or rainy weather, when metallic surface temperature is less than 5 degrees F above the dew point of the surrounding air, or when surface temperature is below 45 degrees F or over 95 degrees F, unless approved by the Contracting Officer.

PART 2 PRODUCTS

2.1 MISCELLANEOUS METALS AND STANDARD METAL ARTICLES

Conform to the respective specifications and other designated requirements for miscellaneous metal materials and standard metal articles. Size as specified or indicated on the contract drawings and/or the approved shop drawings. Where material requirements are not specified, furnish materials suitable for the intended use and subject to approval.

2.1.1 Bolts, Nuts, and Washers

Provide bolts, nuts, and washers of the material, grade, type, class, style and finish indicated or best suited for intended use. Bolts and nuts shall be hex-type, unless otherwise indicated. High-strength bolts shall conform to ASTM F 3125, Type 1, hot-dip galvanized. Bolts, nut and washers other than high-strength shall conform to ASTM A 307, Grade A, hot-dip galvanized, or ASTM A 276, Type 430 or ASTM A 320/A 320M, Type 304.

2.2 SHOP FABRICATED METAL ITEMS

Conform shop fabricated metal items to the requirements and details as specified or shown and to the workmanship provisions and other applicable fabrication requirements as specified in Section 05 50 14 STRUCTURAL METAL

FABRICATIONS.

2.2.1 Steel Handrail

Provide railings as type specified and show, furnish, and install complete with all fittings, brackets, fasteners, and other appurtenances as shown and as required for proper installation. Handrail shall be designed to resist a minimum concentrated load of 200 lbf in any direction at any point of the top of the rail or 50 lb/ft applied in any direction at the top of the rail, whichever is more severe.

2.2.1.1 Materials

Handrail shall be hot-dipped galvanized steel pipe conforming to

SECTION 05 50 15 Page 4

ASTM A53/A53M or structural tubing conforming to ASTM A500/A500M, Grade A or B of equivalent strength ASTM A1085/A1085M. Provide pipe collars of hot-dip galvanized steel. Provide all fasteners of Series 300 stainless steel.

2.2.1.2 Fabrication

Rigid joints in railings must be of welded, threaded, or slip-on fittings assembly. Reinforce welded joints with tight-fitting interior sleeves assembled by welding rails and posts to flush-type fittings, or by mitering and welding joining rails and posts. Exposed threads are not permitted on assembled threaded joints. Use tight fitting slip-on fittings. Provide self-locking, concealed type fasteners for slip-on fittings. Provide stainless steel fasteners for steel fittings. Expansion joints in railings must be an outer-sleeved or 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. Locate expansion joints in rails near the intersection of rails and posts. Make bends in railings in a manner that railings are not crushed and maintain their original cross-sectional shape. Ground welds smooth. Provide railings free of burrs, sharp corners, and sharp edges.

2.2.2 Sheet Pile Wall Cap

Provide sheet pile wall cap as specified and shown. Furnish and install complete with all fasteners and other appurtenances as shown and as required for proper installation.

2.2.2.1 Materials

Fabricate sheet pile wall cap from steel in accordance with ASTM A572/A572M, Grade 50.

2.2.2.2 Fabrication

Size and shape the cap to accurately fit over the top of the sheet pile wall in accordance with the drawings. Fabricate the cap to fit over the angles in the wall alignment after the sheet pile wall has been installed.

2.2.3 Surface Finishes

2.2.3.1 Galvanizing and Zinc Repair

Hot-dip galvanize items specified to be galvanized, when practicable and not indicated otherwise, after fabrication. Galvanize in accordance with ASTM A123/A123M, ASTM A653/A653M, or ASTM A924/A924M, as applicable.

Regalvanize areas where zinc coatings are destroyed by cutting, welding or other causes. Regalvanize coatings 2 ounces or heavier with a suitable low-melting zinc base alloy similar to the recommendations of the American Hot-Dip Galvanizers Association to the thickness and quality specified for the original zinc coating. Repair coatings less than 2 ounces in accordance with ASTM A780/A780M.

2.3 Submittal Requirements

Submit the following:

a. Detail drawings indicating material thickness, type, grade, and class;

dimensions; and construction details. Include in the drawings catalog

SECTION 05 50 15 Page 5 cuts, erection details, manufacturer's descriptive data and installation instructions, and templates.

b. Lists of materials, and records which identify the disposition of approved material and fabricated items in the work.

2.4 FENCING

2.4.1 Fabric

FS RR-F-191/1; Type I, zinc-coated steel, 9 gauge conforming to ASTM A392, with 1.2 ounces per square foot of coated surface. Provide fabric consisting of wires woven into a 2 inch diamond mesh.

2.4.2 Wire Ties

Provide 9-gauge wire for tying fabric to line posts, spaced 12 inches on center. For tying fabric to rails and braces, space wire ties 24 inches on center. For tying fabric to bottom tension wire, space 0.105-inch hog rings 24 inches on center. Provide wire ties constructed of the same material and coating as the fencing fabric.

2.5 BOTTOM TENSION WIRE

Provide zinc-coated steel wire with zinc coating that weighs not less than

1.2 ounces per square foot.

PART 3 EXECUTION

3.1 GENERAL INSTALLATION REQUIREMENTS

Install items at locations indicated, according to manufacturer's instructions. Verify all measurements and take all field measurements necessary before fabrication. Exposed fastenings must be compatible materials, generally match in color and finish, and harmonize with the material to which fastenings are applied. Include materials and parts necessary to complete each item, even though such work is not definitely shown or specified. Poor matching of holes for fasteners is cause for rejection. Conceal fastenings where practicable. Thickness of metal and details of assembly and supports provide strength and stiffness. Form joints exposed to the weather to exclude water.

3.2 FINISHES

3.2.1 Field Preparation

Remove rust preventive coating just prior to field erection, using a remover approved by the rust preventive manufacturer. Provide surfaces, when assembled, free of rust, grease, dirt and other foreign matter.

3.3 ATTACHMENT OF SHEET PILE WALL CAP

Install sheet pile wall cap flush with top of sheet pile wall. Ensure all exposed ends of the sheet pile wall are covered by the cap prior to bolting the cap to the sheet pile wall as indicated.

3.4 ATTACHMENT OF HANDRAILS

Secure galvanized steel railing posts with galvanized steel pipe flanges

SECTION 05 50 15 Page 6 through-bolted to structural metal base plates. Bolt base plates perpendicular to the sheet pile wall cap in accordance with manufacturer's recommendations. Drill a 1/4 inch (6 mm) drain hole in post near the bottom of each post. Install toeboards and brackets where indicated. Splice, where required, at expansion joints.

3.5 FABRIC INSTALLATION

Provide fabric in single lengths between stretch bars with bottom placed approximately 1-1/2 inches above the wall cap. Pull fabric taut and tied to posts, rails, and tension wire with wire ties and bands. Install fabric on the water side of fence, unless otherwise directed. Ensure fabric remains under tension after the pulling force is released.

3.6 TIE WIRES

Provide tie wires that are U-shaped to the pipe diameters to which attached. Twist ends of tie wires not less than two full turns and bent so as not to present a hazard.

3.7 BOTTOM TENSION WIRE

Install bottom tension wires before installing chain-link fabric, and pull wires taut. Place bottom tension wire within 4 inches of respective fabric line.

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SECTION 05 50 15 Page 7

2.5 BOTTOM TENSION WIRE

1.4 SUBMITTALS

3.7.3 Vegetated Areas

3.10 DISPOSITION OF SURPLUS MATERIAL