Mast_of_the_Maine_Handrails_Spec.pdf

USS MAINE HANDRAILS

ARLINGTON NAT'L CEMETERY, ARLINGTON VA

FINAL ISSUE FOR CONSTRUCTION

SECTION 05 52 00 Page 1

SECTION 05 52 00

METAL RAILINGS

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.

AMERICAN WELDING SOCIETY (AWS)

AWS D1.1/D1.1M (2010; Errata 2010) Structural Welding

Code - Steel

ASTM INTERNATIONAL (ASTM)

ASTM A 240/A 240M (2010) Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

ASTM A 312/A 312M (2009) Standard Specification for

Seamless, Welded, and Heavily Cold Worked

Austenitic Stainless Steel Pipes

ASTM A 554 (2010) Standard Specification for Welded

Stainless Steel Mechanical Tubing

ASTM A 666 (2003) Standard Specification for Annealed or Cold-Worked Austenitic Stainless Steel

Sheet, Strip, Plate and Flat Bar

ASTM A 743/A 743M (2006) Standard Specification for

Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application

ASTM A500/A500M (2010a) Standard Specification for

Cold-Formed Welded and Seamless Carbon

Steel Structural Tubing in Rounds and

Shapes

ASTM A512 (2006) Standard Specification for

Cold-Drawn Buttweld Carbon Steel

Mechanical Tubing

ASTM A53/A53M (2012) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM C109 (2012) Standard Test Method for

Compressive Strength of Hydraulic Cement

Mortars (Using 2-in. Cube Specimens)

SECTION 05 52 00 Page 2

ASTM C469 (2010) Standard Test Method for Static

Modulus of Elasticity and Poisson's Ratio of Concrete in Compression

ASTM C496 (2011) Standard Test Method for Splitting

Tensile Strength of Cylindrical Concrete

Specimens

ASTM C78 (2010e1) Standard Test Method for Flexural

Strength of Concrete (Using Simple Beam with Third-Point Loading)

NATIONAL ASSOCIATION OF ARCHITECTURAL METAL MANUFACTURERS (NAAMM)

NAAMM AMP 521 (2001) Pipe Railing Manual

1.2 ADMINISTRATIVE REQUIREMENTS

1.2.1 Pre-Installation Meetings

Within 30 days of Contract Award, submit fabrication drawings to the

Contracting Officer for the following items:

a. Steel Shapes, Plates, Bars and Strips

b. Steel Railings and Handrails

c. Anchorage and fastening systems

Submit manufacturer's catalog data, including two copies of manufacturers specifications, load tables, dimension diagrams, and anchor details for the following items:

a. Concrete inserts

b. Anchorage and fastening systems

1.3 SUBMITTALS

Submit the following:

SD-02 Shop Drawings fabrication and installation drawings;

SD-03 Product Data

Concrete Inserts;

Cold-Drawn Steel Tubing

Steel Railings and Handrails

Stainless Steel Railings and Handrails

Anchorage and Fastening Systems;

SD-08 Manufacturer's Instructions

Installation Instructions

SECTION 05 52 00 Page 3

PART 2 PRODUCTS

2.1 SYSTEM DESCRIPTION

Provide complete, detailed fabrication and installation drawings for all hardware, and for all steel shapes, plates, bars and strips used in accordance with the design specifications referenced in this section.

Pre-assemble items in the shop to the greatest extent possible.

Disassemble units only to the extent necessary for shipping and handling.

Clearly mark units for reassembly and coordinated installation.

For the fabrication of work exposed to view, use only materials that are smooth and free of surface blemishes, including pitting, seam marks, roller marks, rolled trade names, and roughness. Remove blemishes by grinding, or by welding and grinding, prior to cleaning, treating, and application of surface finishes, including zinc coatings.

2.2 GENERAL FABRICATION

Provide railings and handrails detail plans and elevations at not less than

1 inch to 1 foot. Provide details of sections and connections at not less than 3 inches to 1 foot. Also detail setting drawings, diagrams, templates for installation of anchorages, including concrete inserts, anchor bolts, and miscellaneous metal items having integral anchors.

Use materials of size and thicknesses indicated or, if not indicated, of required size and thickness to produce adequate strength and durability in finished product for intended use. Work materials to dimensions indicated on approved detail drawings, using proven details of fabrication and support. Use type of materials indicated or specified for the various components of work.

Form exposed work true to line and level with accurate angles and surfaces and straight sharp edges. Ensure all exposed edges are eased to a radius of approximately 1/32 inch. Bend metal corners to the smallest radius possible without causing grain separation or otherwise impairing the work.

Weld corners and seams continuously and in accordance with the recommendations of AWS D1.1/D1.1M. Grind exposed welds smooth and flush to match and blend with adjoining surfaces.

Form exposed connections with hairline joints that are flush and smooth, using concealed fasteners wherever possible. Use exposed fasteners of the type indicated or, if not indicated, use Phillips flathead (countersunk) screws or bolts.

Provide anchorage of the type indicated and coordinated with the supporting structure. Fabricate anchoring devices and space as indicated and as required to provide adequate support for the intended use of the work.

2.3 COLD-DRAWN STEEL TUBING

Provide tubing conforming to ASTM A512, sunk drawn, butt-welded, cold-finished, and stress-relieved.

SECTION 05 52 00 Page 4

2.4 STEEL PIPE

Provide pipe conforming to ASTM A53/A53M, type as selected, Grade B;

primed finish, unless galvanizing is required; standard weight (Schedule

40).

2.5 FASTENERS

stainless steel fasteners used for exterior applications or where built into exterior walls or floor systems. Select fasteners for the type, grade, and class required for the installation of railing system.

2.6 STEEL RAILINGS AND HANDRAILS

Design handrails to resist a concentrated load of 250 lbs in any direction at any point of the top of the rail or 20 lbs per foot applied horizontally to top of the rail, whichever is more severe. NAAMM AMP 521, provide the same size rail and post. Provide pipe collars of the same material and finish as the handrail and posts. Provide series 300 stainless steel pipe collars.

2.6.1 Steel Handrails

Provide steel handrails, including inserts in concrete, steel pipe conforming to ASTM A53/A53M or structural tubing conforming to

ASTM A500/A500M, Grade A or B of equivalent strength. Provide steel railings of 2 inches nominal size,.

a. Fabrication: Joint posts, rail, and corners by one of the following methods:

(1) Flush-type rail fittings of commercial standard, welded and ground smooth with railing splice locks secured with 3/8 inch hexagonal-recessed-head setscrews.

(2) Mitered and welded joints made by fitting post to top rail and intermediate rail to post, mitering corners, groove welding joints, and grinding smooth. Butt railing splices and reinforce them by a tight fitting interior sleeve not less than 6 inches long.

(3) Railings may be bent at corners in lieu of jointing, provided bends are made in suitable jigs and the pipe is not crushed.

2.6.2 Stainless Steel Railings and Handrails

Tubing: ASTM A 554, Grade MT 316L.

Pipe: ASTM A 312/A 312M, Grade TP 316L.

Castings: ASTM A 743/A 743M, Grade CF 8M or CF 3M.

Plate and Sheet: ASTM A 240/A 240M or ASTM A 666, Type 316L.

Do not use exposed fasteners for connecting railing system. Provide fasteners manufactured or recommended by railing system manufacturer.

SECTION 05 52 00 Page 5

MILLENNIUM PROJECT

ARLINGTON NAT'L CEMETERY, ARLINGTON VA

CONTRACT W91236-13-C-0063

2.6.2.1 Stainless Steel Finishes

Remove tool and die marks and stretch lines, or blend into finish.

Grind and polish surfaces to produce uniform, directionally textured, polished finish indicated, free of cross scratches. Run grain with long dimension of each piece. Provide the following finish as approved by Contracting Officer:

a. Directional Satin Finish: No. 4.

When polishing is completed, passivate and rinse surfaces. Remove embedded foreign matter and leave surfaces chemically clean.

2.6.3 Braided Stainless Steel Cable

Provide 3/16-inch braided stainless steel cable and fittings installed to

300 pound tension.

2.6.4 Pourable High Strength Grout

Provide a form and pour mortar specially designed for structural support of the stainless steel handrails and guardrails. Performance properties shall be as follows, minimum:

a. Comprehensive Strength: After 28 days, greater than 8500 psi per ASTM C109.

b. Flexural Strength: after 28 days, 1100 psi per ASTM C78.

c. Splitting Tensile: After 28 days, 675 psi per ASTM C496.

d. Modulus of Elasticity: 2.5 by 10-6 psi per ASTMC469.

PART 3 EXECUTION

3.1 INSTALLATION INSTRUCTIONS

Submit manufacturer's installation instructions for the following products to be used in the fabrication of hand rail work:

a. Steel railings and handrails.

b. Anchorage and fastening systems.

3.2 PREPARATION

Adjust railings and handrails prior to securing in place to ensure proper matching at butting joints and correct alignment throughout their length.

Space posts not more than 8 feet on center. Plumb posts in each direction.

Anchor posts in concrete by means of pipe sleeves set and anchored into concrete. Provide sleeves stainless steel pipe, not less than 6 inches long, and having an inside diameter not less than 1/2-inch greater than the outside diameter of the inserted pipe post. After posts have been inserted into sleeves, fill the annular space between post and sleeve with a quick-setting hydraulic cement. Cover anchorage joint with a round steel flange welded to the post.

SECTION 05 52 00 Page 6

MILLENNIUM PROJECT

ARLINGTON NAT'L CEMETERY, ARLINGTON VA

CONTRACT W91236-13-C-0063

3.3 STEEL HANDRAIL

Install according to approved Shop Drawings and manufacturer's recommended installation method. Secure rail ends by steel pipe flanges

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