MC BEAMLINE ENCLOSURE

Transcription

1 MC BEAMLINE ENCLOSURE SECTION METAL FABRICATIONS PART 1. GENERAL 1.01 SECTION INCLUDES A. Extent of metal fabrications work is shown on the drawings and includes items fabricated from steel shapes, plates, bars, strips, tubes, pipes and castings which are not part of the structural steel or other metal systems in other sections of these specifications. B. Metal fabrications items include, but are not limited to the following: 1. Bolts, anchors and fasteners. 2. Carpenter s iron work. 3. Miscellaneous framing and supports. 4. Miscellaneous steel trim. 5. Shaft and Hatch covers. 6. Embedded steel shapes and headed stud anchors. 7. Embedded Channel Inserts. 8. Carbon Steel buried air ducts REFERENCE TO STANDARDS A. ASTM A36 - Structural Steel. B. ASTM A53 - Hot-Dipped, Zinc-coated Welded and Seamless Steel Pipe. C. ASTM A123 - Zinc (Hot-Galvanized) Coatings on Products Fabricated From Rolled, Pressed and Forged Steel Shapes, Plates, Bars, and Strip. D. ASTM A153 - Zinc Coating (Hot-Dip) on Iron and Steel Hardware. E. ASTM A786 Hot Rolled Steel Floor Plate. F. ASTM A193 - Alloy-Steel and Stainless Steel Bolting Materials for High Temperature or High Pressure and Other Special Purpose Applications. G. ASTM A307 - Carbon Steel Externally Threaded Standard Fasteners. H. ASTM A325 - High Strength Bolts for Structural Steel Joints. METAL FABRICATIONS 03 MARCH

2 MC BEAMLINE ENCLOSURE I. ASTM A386 - Zinc-Coating (Hot-Dip) on Assembled Steel Products. J. ASTM A500 - Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Round and Shapes. K. AWS A2.0 - Standard Welding Symbols. L. AWS D1.1 - Structural Welding Code. M. SSPC - Steel Structures Painting Council. N. AISI Stainless Steel Fasteners, Nuts and Washers SUBMITTALS A. Submit under the provisions of Exhibit A, Section Submittals, Shop Drawings and Material Samples. B. Submit shop drawings for fabrication and erection of miscellaneous metal assemblies. Show anchorage and accessory items. Provide templates for anchor and bolt installation by others. C. Indicate welded connections using standard AWS A2.0 welding symbols. Indicate net weld strengths. D. Product Data: Submit manufacturer s specifications, anchor details and installation instructions for products to be used in fabrication of miscellaneous metal work, including paint products. Indicate by transmittal that copy of instructions has been distributed to installer QUALITY ASSURANCE A. Field Measurements: 1. Take field measurements prior to preparation of shop drawings and fabrication, where possible. Do not delay job progress; allow for trimming and fitting wherever taking field measurements before fabrication might delay work. B. Inserts and Anchorages: 1. Furnish inserts and anchoring devices which must be set in concrete or built into masonry for installation of metal work. Provide setting drawings, templates, instructions and directions for installation of anchorage devices. Coordinate delivery with other work to avoid delay. 2. See concrete, mechanical, electrical and other sections of these specifications for installation of inserts and anchorage devices. METAL FABRICATIONS 03 MARCH

3 MC BEAMLINE ENCLOSURE C. Shop Assembly: 1. Pre-assemble items in shop to greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary to shipping and handling limitations. Clearly mark units for reassembly and coordinated installation. D. Codes and Standards: 1. Comply with the provisions of the following codes, standards and specifications, except as otherwise shown and specified: a) AISC Specification for Structural Steel Buildings (ANSI/AISI ), and including Commentary on the Specification for Structural Steel Buildings. b) AISI - Specification for the Design of Cold-Formed Steel Structural Members. c) AWS - Code for Welding in Building Construction. d) ASTM A6 - General Requirements for Delivery of Rolled Steel Plates, Shapes, Sheet Piling and Bars for Structural Use. E. AISC Qualification for Welding Work: 1. Qualify welding processes and welding operators in accordance with AWS Standard Qualification Procedure. PART 2. PRODUCTS 2.01 MATERIALS A. Steel Plates, Shapes and Bars: ASTM A36. B. Steel Tubing (HSS Sections): ASTM A500, Grade B. C. Pipe: ASTM A53, Grade B, Type S, Schedule 40 (Exterior). D. Pipe: ASTM A53, Grade B, Type S. Schedule 80 (Interior). E. Fasteners: ASTM A307, unless noted otherwise. F. Embedded channel Inserts, Unistrut Corporation s 3200 Series, pre galvanized conforming to ASTM A653 GR 33, with closure strip, and end plates or approved equal. G. Bolts, Nuts, and Washers: ASTM A307, unless noted otherwise. METAL FABRICATIONS 03 MARCH

4 MC BEAMLINE ENCLOSURE H. High-Strength Threaded Fasteners: ASTM A325, ¾ diameter (minimum), unless noted otherwise. I. Welding Materials: AWS D1.1; type required for materials being welded. J. Touch-Up Paint: ZRC Galvalite Cold Galvanizing Compound, or equal. K. Bitumastic Paint for all steel elements below grade and exposed to earth shall be Carboline Bitumastic 50 or approved equal. L. Cathartic protection: all steel element below grade, and exposed to earth, shall have a minimum 17 pounds anode affixed to the buried steel or as specified in specification section 02510, Utilities, Part 2, 2.01G. M. Drilled-In Anchors: 2.02 FASTENERS 1. All drilled-in concrete anchors shall be adhesive capsule anchor type or expansion anchor type, as manufactured by Hilti, or approved equal. Use of expansion anchor devices shall be permitted only where shown on the drawings and where required for attachment of miscellaneous equipment. There will be no exceptions to this requirement. Drilled-in anchors shall be a minimum of ½ diameter, unless noted otherwise, with minimum embedment as required by manufacturer, or shown on the drawings. A. General: 1. Provide zinc-coated fasteners for exterior use or where built into exterior walls. Select fasteners for type, grade and class required. Stainless steel fasteners shall be used where exposed to earth. B. Bolts and Nuts: 1. Regular hexagon head type, ASTM A307, Grade A or ASTM A325 bolts. 2. Regular hexagon or square type, ASTM A563 nuts. C. Lag Bolts: 1. Square head type, FS FF-B-561. D. Machine Screws: 1. Cadmium plated steel, FS-FF-S-92. E. Wood Screws: METAL FABRICATIONS 03 MARCH

5 MC BEAMLINE ENCLOSURE Flat head carbon steel, FS-FF-S-111. F. Plain Washers: 1. Round, carbon steel, FS FF-W-92. G. Lock Washers: 2.03 FINISH 1. Helical spring type carbon steel, FS FF-W-84. A. All steel shapes, plates, bars, strips and assemblies shall be primed and painted with two finish coats. B. Structural steel, joists and miscellaneous steel: 1. Prior to delivery and erection abrasive blast in accordance with SSPC- SP6. Blast profile shall be compatible with primer paint. 2. Immediately after blasting (same day) paint with prime coat as indicated FABRICATION - GENERAL A. Workmanship: 1. Use materials of size and thickness shown or, if not shown, of required size and thickness to produce strength and durability in finished product. Work to dimensions shown or accepted on shop drawings, using proven details of fabrication and support. Use type of materials shown or specified for various components of work. 2. Form exposed work true to line and level with accurate angles and surfaces and straight sharp edges. Ease exposed edges to a radius of approximately 1/32 unless otherwise shown. Form bent-metal corners to smallest radius possible without causing grain separation or otherwise impairing work. 3. Weld corners and seams continuously, complying with AWS recommendations. Grind exposed welds smooth and flush, to match and blend with adjoining surfaces. All welds shall be made with E70XX electrodes and shall conform to AWS Specifications. 4. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners wherever possible. Use exposed fasteners of type shown or, if not shown, Phillips flat-head (countersunk) screws or bolts. METAL FABRICATIONS 03 MARCH

6 MC BEAMLINE ENCLOSURE Provide for anchorage of type shown, coordinated with supporting structure. Fabricate and space anchoring devices as shown and as required to provide adequate support for intended use. 6. Cut, reinforce, drill and tap miscellaneous metal work as required to provide adequate support for intended use. 7. Cut, reinforce, drill and tap miscellaneous metal work as required to receive finish hardware and similar items. 8. Use hot-rolled steel bars for work fabricated from bar stock, unless shown or specified to be fabricated from cold-finished or cold-rolled stock. 9. Verify dimensions on site prior to shop fabrication. 10. Fabricate items with joints tightly fitted and secured. 11. Fit and shop assemble in largest practical sections, for delivery to site. 12. Grind exposed welds flush and smooth with adjacent finished surface. Ease exposed edges to small uniform radius. 13. Exposed Mechanical Fastenings: Flush countersunk screws or bolts; unobtrusively located; consistent with design of structure, except where specifically noted otherwise. 14. Supply components required for anchorage of metal fabrications. Fabricate anchorage and related components of same material and finish as metal fabrication, except where specifically noted otherwise. 15. Paint Primer - Provide shop applied prime coat in accordance with Section Painting MISCELLANEOUS METAL ITEMS A. Carpenter s Iron Work: 1. Furnish bent or otherwise custom fabricated bolts, plates, anchors, hangers, dowels and other miscellaneous steel and iron shapes as required for framing and supporting woodwork and for anchoring or securing woodwork to concrete or other structures. Straight bolts and other stock rough hardware are specified in Division 6 Sections. 2. Manufacture or fabricate items of sizes, shapes and dimensions required. Furnish malleable iron washers for heads and nuts which bear on wood structural connections; elsewhere, furnish steel washers. B. Miscellaneous Steel Trim: METAL FABRICATIONS 03 MARCH

7 MC BEAMLINE ENCLOSURE Provide shapes and sizes as required for profiles shown. Except as otherwise noted, fabricate units from structural steel shapes and plates and steel bars, with continuously welded joints and smooth exposed edges. Use concealed field splices wherever possible. Provide cutouts, fittings and anchorages as required for coordination of assembly and installation with other work: a) Galvanize miscellaneous steel trim where indicated ANCHOR BOLTS AND ADHESIVE ANCHORS A. All steel anchor bolts shall be as detailed on the plans and shall be ASTM A 1554 Gr. 36, with hardened washers and standard nuts, all shall be Hot Dip Galvanized. B. All adhesive anchors in exposed and/or exterior conditions shall consist of Type 304 stainless steel rods and an adhesive cartridge. All other adhesive anchors shall consist of A193 rods and an adhesive cartridge. All adhesive anchors shall be Hilti HAS Anchor Rod Assembly with Hilti HBP Adhesive Cartridge, EPCON Epoxy Anchoring System from ITW, or equal. Expansion anchors will not be permitted under any circumstance where adhesive anchors are indicated. PART 3. EXECUTION 3.01 EXAMINATION A. Verify that field conditions are acceptable and are ready to receive work. B. Beginning of installation means erector accepts existing conditions PREPARATION A. Furnish setting drawings, diagrams, templates, instructions and directions for installation of anchorages, such as concrete inserts, anchor bolts and miscellaneous items having integral anchors, which are to be embedded in concrete or masonry construction. Coordinate delivery of such items to project site. B. Obtain Construction Coordinator approval prior to site cutting or making adjustments not scheduled. C. Clean and strip steel items to bare metal where site welding is scheduled. D. Make provisions for erection loads with temporary bracing. Keep work in alignment. E. Supply items required to be cast into concrete or embedded in masonry with setting templates, to appropriate sections. METAL FABRICATIONS 03 MARCH

8 MC BEAMLINE ENCLOSURE INSTALLATION A. Fastening to In-Place Construction: 1. Provide anchorage devices and fasteners where necessary for securing miscellaneous metal items to in-place construction; including threaded fasteners for concrete and masonry inserts, toggle bolts, through-bolts, lag bolts, wood screws and other connectors as required. B. Cutting, Fitting and Placement: 1. Perform cutting, drilling and fitting required for installation of miscellaneous metal items. Set work accurately in location, alignment and elevation, plumb, level, true and free of rack, measured from established lines and levels. Provide temporary bracing or anchors in formwork for items which are to be built into concrete, masonry or similar construction. C. Fit exposed connections accurately together to form tight hairline joints. Weld connections which are not to be left as exposed joints, but cannot be shop welded because of shipping size limitations. Grind joints smooth and touchup shop paint coat or galvanized finish. D. Allow for erection loads, and for sufficient temporary bracing to maintain true alignment until completion of erection and installation of permanent attachments. E. Field weld components indicated on Drawings. F. Embedded channel inserts shall be set flush with concrete face and shall be free of concrete and debris including any nails used to attach to forms. G. Perform field welding in accordance with AWS D1.1. H. Obtain Construction Coordinator approval prior to site cutting or making adjustments not scheduled. I. Immediately after erection, clean field welds, bolted connections and abraded areas and touch up with 6 mils of cold galvanizing compound ERECTION TOLERANCES A. Deviation from plumb, level and alignment shall not exceed one (1) in five hundred (500). END OF SECTION METAL FABRICATIONS 03 MARCH

9 SECTION METAL STAIRS PART 1. GENERAL 1.01 SUMMARY A. Section Includes: 1. Steel tube railings attached to metal stairs. 2. Steel tube handrails attached to walls adjacent to metal stairs. 3. Preassembled steel stairs with metal treads. 4. Abrasive nosings for concrete stairs. B. See Section Pipe and Tube Railings for pipe and tube railings not attached to metal stairs or to walls adjacent to metal stairs PERFORMANCE REQUIREMENTS A. Delegated Design: Design metal stairs, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated. B. Structural Performance of Stairs: Metal stairs shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated. 1. Uniform Load: 100 lbf/sq. ft 2. Concentrated Load: 300 lbf applied on an area of 4 sq. in. 3. Uniform and concentrated loads need not be assumed to act concurrently. 4. Stair Framing: Capable of withstanding stresses resulting from railing loads in addition to loads specified above. 5. Limit deflection of treads, platforms, and framing members to L/240 or ¼, whichever is less. C. Structural Performance of Railings: Railings shall withstand the effects of gravity loads and the following loads and stresses within limits and under conditions indicated. 1. Handrails and Top Rails of Guards: a) Uniform load of 50 lbf/ ft. applied in any direction. METAL STAIRS 03 MARCH

10 b) Concentrated load of 200 lbf applied in any direction. c) Uniform and concentrated loads need not be assumed to act concurrently. 2. Infill of Guards: 1.03 ACTION SUBMITTALS a) Concentrated load of 50 lbf applied horizontally on an area of 1 sq. ft. b) Infill load and other loads need not be assumed to act concurrently. A. Product Data: For metal stairs and the following: 1. Prefilled metal-pan stair treads 2. Abrasive nosings 3. Paint products B. Welding certificates. C. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. D. Delegated-Design Submittal: For installed products indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified structural engineer responsible for their preparation. Stair designer shall be a licensed Structural Engineer licensed in the state of Illinois QUALITY ASSURANCE A. NAAMM Stair Standard: Comply with Recommended Voluntary Minimum Standards for Fixed Metal Stairs in NAAMM AMP 510, Metal Stairs Manual, for class of stair designated, unless more stringent requirements are indicated. 1. Preassembled Stairs: Service class. METAL STAIRS 03 MARCH

11 PART 2. PRODUCTS 2.01 METALS A. Metal Surfaces, General: Provide materials with smooth, flat surfaces unless otherwise indicated. For components exposed to view in the completed Work, provide materials without seam marks, roller marks, rolled trade names, or blemishes. B. Steel Plates, Shapes, and Bars: ASTM A 36/A 36M. C. Steel Tubing: ASTM A 500 (cold formed) or ASTM A 513. D. Rolled-Steel Floor Plate: ASTM A 786/A 786M, rolled from plate complying with ASTM A 36/A 36M or ASTM A 283/A 283M, Grade C or D. E. Cast Iron: Either gray iron, ASTM A 48/A 48M, or malleable iron, ASTM A 47/A 47M, unless otherwise indicated. F. Uncoated, Hot-Rolled Steel Sheet: ASTM A 1011/A 1011M, either commercial steel, Type B, or structural steel, Grade 30, unless another grade is required by design loads ABRASIVE NOSINGS (Supplied for insertion in concrete stairs) A. Extruded Units: Aluminum units with abrasive filler in an epoxy-resin binder. 1. Basis of Design Product: Subject to compliance with requirements, provide Supergrit Profile type 121BF (1-7/8 wide) safety treads/nosings as manufactured by Wooster Products Inc. or comparable product by one of the following: a) American Safety Tread Co., Inc. b) Balco Inc. c) Granite State Casting Co. d) Safe-T-Metal Company, Inc. 2. Provide ribbed units, with abrasive filler strips projecting 1/16 above aluminum extrusion. 3. Provide solid-abrasive-type units without ribs. B. Provide anchors for embedding units in concrete, either integral or applied to units, as standard with manufacturer. METAL STAIRS 03 MARCH

12 C. Apply bituminous paint to concealed surfaces of cast-metal units set into concrete. D. Apply clear lacquer to concealed surfaces of extruded units set into concrete FABRICATION, GENERAL A. Provide complete stair assemblies, including metal framing, hangers, struts, railings, clips, brackets, bearing plates, and other components necessary to support and anchor stairs and platforms on supporting structure. 1. Join components by welding unless otherwise indicated. 2. Use connections that maintain structural value of joined pieces. B. Preassembled Stairs: Assemble stairs in shop to greatest extent possible. Disassemble units only as necessary for shipping and handling limitations. C. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges. Remove sharp or rough areas on exposed surfaces. D. Form bent-metal corners to smallest radius possible without impairing work. E. Weld connections to comply with the following: 1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals. 2. Obtain fusion without undercut or overlap. 3. Remove welding flux immediately. 4. Weld exposed corners and seams continuously unless otherwise indicated. 5. At exposed connections, finish exposed welds to comply with NOMA s Voluntary Joint Finish Standards for 2 welds: completely sanded joint, some undercutting and pinholes okay. F. Form exposed connections with hairline joints, flush and smooth, using concealed fasteners where possible. Locate joints where least conspicuous. G. Fabricate joints that will be exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate. METAL STAIRS 03 MARCH

13 2.04 STEEL-FRAMED STAIRS A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Alfab, Inc. 2. American Stair, Inc. 3. Sharon Companies Ltd. (The). B. Stair Framing: 1. Fabricate stringers of steel plates or channels. 2. Construct platforms of steel plate or channel headers and miscellaneous framing members as needed to comply with performance requirements. 3. If using bolts, fabricate and join so bolts are not exposed on finished surfaces. 4. Where stairs are enclosed by gypsum board or shaft-wall assemblies, provide hanger rods or struts to support landings from floor construction above or below. 5. Where stairs are enclosed by masonry walls, provide hanger rods or struts to support landings from floor construction or steel framing members above or below. 6. Where masonry walls support metal stairs, provide temporary supporting struts designed for erecting steel stair components before installing masonry. C. Metal Floor Plate Stairs: Form treads to configurations shown from abrasivesurface floor plate (diamond plate) of thickness needed to comply with performance requirements but not less than 3/ At Contractor s option, provide stair treads formed from metal bar grating: a) Fabricate treads from welded or pressure-locked steel grating with openings in gratings no more than ½ inch in least dimension. b) Surface: Serrated c) Finish: Shop Primed (painted in field). METAL STAIRS 03 MARCH

14 2.05 STAIR RAILINGS d) Fabricate grating treads with cast-abrasive nosing and with steel angle or steel plate carrier at each end for stringer connections. Secure treads to stringers. A. Steel Tube Railings: Fabricate railings to comply with requirements indicated for design, dimensions, details, finish, and member sizes, including wall thickness of tube, post spacings, and anchorage, but not less than that needed to withstand indicated loads. 1. Rails and Posts: 1-½ outside-diameter top and bottom rails and 1-½ - outside-diameter posts. 2. Picket Infill: As indicated on the drawings spaced less than 4 clear. 3. Intermediate Rails Infill: 1-½ -outside-diameter intermediate rails spaced less than 21 clear. B. Welded Connections: Fabricate railings with welded connections. Cope components at connections to provide close fit, or use fittings designed for this purpose. Weld all around at connections, including at fittings. 1. Finish welds to comply with NOMA s Voluntary Joint Finish Standards for Type 2 welds: completely sanded joint, some undercutting and pinholes okay, grind all welds smooth. C. Form changes in direction of railings by bending or by inserting prefabricated elbow fittings. D. Form curves by bending members in jigs to produce uniform curvature without buckling. E. Close exposed ends of railing members with prefabricated end fittings. F. Provide wall returns at ends of wall-mounted handrails. G. Brackets, Flanges, Fittings, and Anchors: Provide wall brackets, end closures, flanges, miscellaneous fittings, and anchors for interconnecting components and for attaching to other work FINISHES 1. Connect posts to stair framing by direct welding. A. Comply with NAAMM s Metal Finishes Manual for Architectural and Metal Products for recommendations for applying and designating finishes. B. Finish metal stairs after assembly. METAL STAIRS 03 MARCH

15 C. Preparation for Shop Priming: Prepare uncoated ferrous-metal surfaces to comply with SSPC-SP 6/NACE No. 3, Commercial Blast Cleaning. D. Apply shop primer to uncoated surfaces of metal stair components. Comply with SSPC-PA 1, Paint Application Specification No. 1: Shop, Field, and Maintenance Painting of Steel, for shop painting. E. Stairs and railings to be field painted in accordance with Section PART 3. EXECUTION 3.01 INSTALLATION A. Cutting, Fitting, and Placement: Perform cutting, drilling, and fitting required for installing metal stairs. Set units accurately in location, alignment, and elevation, measured from established lines and levels and free of rack. B. Fit exposed connections accurately together to form hairline joints. Weld connections that are not to be left as exposed joints. Do not weld, cut, or abrade surfaces of exterior units that have been hot-dip galvanized after fabrication. C. Field Welding: Comply with requirements for welding in Fabrication, General Article. D. Attach handrails to wall with wall brackets. Use type of bracket with predrilled hole for exposed bolt anchorage ADJUSTING AND CLEANING A. Touchup Painting: Immediately after erection, clean field welds, bolted connections, and abraded areas of shop paint, and paint exposed areas with same material as used for shop painting to comply with SSPC-PA 1 for touching up shop-painted surfaces. END OF SECTION METAL STAIRS 03 MARCH

16 SECTION PIPE AND TUBE RAILINGS PART 1. GENERAL 1.01 SUMMARY A. This Section includes the following: 1. Steel pipe and tube railings where indicated on plans. 2. Wall mounted handrail for concrete stairs B. Related Sections include the following: 1. Division 5 Section Metal Stairs for steel tube railings associated with metal stairs PERFORMANCE REQUIREMENTS A. General: In engineering railings to withstand structural loads indicated, determine allowable design working stresses of railing materials based on the following: 1. Steel: 72 percent of minimum yield strength. B. Structural Performance: Provide railings capable of withstanding the effects of gravity loads and the following loads and stresses within limits and under conditions indicated: 1. Handrails: a) Uniform load of 50 lbf/ ft. (0.73 kn/m) applied in any direction. b) Concentrated load of 200 lbf (0.89 kn) applied in any direction. c) Uniform and concentrated loads need not be assumed to act concurrently. 2. Top Rails of Guards: a) Uniform load of 50 lbf/ ft. (0.73 kn/m) applied horizontally and concurrently with 100 lbf/ ft. (1.46 kn/m) applied vertically downward. b) Concentrated load of 200 lbf (0.89 kn) applied in any direction. c) Uniform and concentrated loads need not be assumed to act concurrently. 3. Infill of Guards: PIPE & TUBE RAILINGS 03 MARCH

17 a) Concentrated load of 200 lbf (0.89 kn) applied horizontally on an area of 1 sq. ft. (0.093 sq. m). b) Uniform load of 25 lbf/sq. ft. (1.2 kn/sq. m) applied horizontally. c) Infill load and other loads need not be assumed to act concurrently. C. Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials SUBMITTALS A. Product Data: For the following: 1. Manufacturer s product lines of mechanically connected railings. 2. Grout, anchoring cement, and paint products. B. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. 1. For installed products indicated to comply with design loads, include structural analysis data signed and sealed by the qualified structural engineer responsible for their preparation. C. Samples for Verification: For each type of exposed finish required. D. Welding certificates. E. Delegated-Design Submittal: For railings, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation QUALITY ASSURANCE A. Source Limitations: Obtain each type of railing through one source from a single manufacturer. B. Welding: Qualify procedures and personnel according to the following: 1. AWS D1.1, Structural Welding Code - Steel PROJECT CONDITIONS A. Field Measurements: Verify actual locations of walls and other construction contiguous with railings by field measurements before fabrication and indicate measurements on Shop Drawings. PIPE & TUBE RAILINGS 03 MARCH

18 1. Established Dimensions: Where field measurements cannot be made without delaying the Work, establish dimensions and proceed with fabricating railings without field measurements. Coordinate wall and other contiguous construction to ensure that actual dimensions correspond to established dimensions. 2. Provide allowance for trimming and fitting at site COORDINATION AND SCHEDULING A. Coordinate installation of anchorages for railings. Furnish setting drawings, templates, and directions for installing anchorages, including sleeves, concrete inserts, anchor bolts, and items with integral anchors, that are to be embedded in concrete or masonry. Deliver such items to Project site in time for installation. B. Schedule installation so wall attachments are made only to completed walls. Do not support railings temporarily by any means that do not satisfy structural performance requirements. PART 2. PRODUCTS 2.01 MANUFACTURERS A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 2.02 METALS, GENERAL 1. Steel Pipe and Tube Railings: a) Pisor Industries, Inc. b) Sharpe Products. c) Wagner, R & B, Inc.; a division of the Wagner Companies. A. Metal Surfaces, General: Provide materials with smooth surfaces, without seam marks, roller marks, rolled trade names, stains, discolorations, or blemishes. B. Brackets, Flanges, and Anchors: Cast or formed metal of same type of material and finish as supported rails, unless otherwise indicated STEEL AND IRON A. Tubing: ASTM A 500 (cold formed) or ASTM A 513, Type 5 (mandrel drawn). PIPE & TUBE RAILINGS 03 MARCH

19 B. Pipe: ASTM A 53/A 53M, Type F or Type S, Grade A, Standard Weight (Schedule 40), unless another grade and weight are required by structural loads. 1. Provide galvanized finish for exterior installations and where indicated. C. Plates, Shapes, and Bars: ASTM A 36/A 36M. D. Castings: Either gray or malleable iron, unless otherwise indicated FASTENERS 1. Gray Iron: ASTM A 48/A 48M, Class 30, unless another class is indicated or required by structural loads. 2. Malleable Iron: ASTM A 47/A 47M. A. General: Provide the following: 1. Steel Railings: Plated steel fasteners complying with ASTM B 633, Class Fe/Zn 25 for electrodeposited zinc coating. B. Fasteners for Anchoring Railings to Other Construction: Select fasteners of type, grade, and class required to produce connections suitable for anchoring railings to other types of construction indicated and capable of withstanding design loads. C. Fasteners for Interconnecting Railing Components: 1. Provide concealed fasteners for interconnecting railing components and for attaching them to other work, unless otherwise indicated. 2. Provide Phillips flat-head machine screws for exposed fasteners, unless otherwise indicated. D. Anchors: Provide cast-in-place, chemical or torque-controlled expansion anchors, fabricated from corrosion-resistant materials with capability to sustain, without failure, a load equal to six times the load imposed when installed in unit masonry and equal to four times the load imposed when installed in concrete, as determined by testing per ASTM E 488 conducted by a qualified independent testing agency MISCELLANEOUS MATERIALS A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded. B. Shop Primers: Provide primers that comply with Division 9 painting Sections. PIPE & TUBE RAILINGS 03 MARCH

20 2.06 FABRICATION A. General: Fabricate railings to comply with requirements indicated for design, dimensions, member sizes and spacing, details, finish, and anchorage, but not less than that required to support structural loads. B. Assemble railings in the shop to greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary for shipping and handling limitations. Clearly mark units for reassembly and coordinated installation. Use connections that maintain structural value of joined pieces. C. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 (1 mm), unless otherwise indicated. Remove sharp or rough areas on exposed surfaces. D. Form work true to line and level with accurate angles and surfaces. E. Fabricate connections that will be exposed to weather in a manner to exclude water. Provide weep holes where water may accumulate. F. Cut, reinforce, drill, and tap as indicated to receive finish hardware, screws, and similar items. G. Connections: Fabricate railings with welded connections, unless otherwise indicated. H. Welded Connections: Cope components at connections to provide close fit, or use fittings designed for this purpose. Weld all around at connections, including at fittings. 1. Use materials and methods that minimize distortion and develop strength and corrosion resistance of base metals. 2. Obtain fusion without undercut or overlap. 3. Remove flux immediately. 4. At exposed connections, finish exposed surfaces smooth and blended so no roughness shows after finishing and welded surface matches contours of adjoining surfaces. I. Nonwelded Connections: Connect members with concealed mechanical fasteners and fittings. Fabricate members and fittings to produce flush, smooth, rigid, hairline joints. 1. Fabricate splice joints for field connection using an epoxy structural adhesive if this is manufacturer s standard splicing method. J. Form changes in direction as follows: PIPE & TUBE RAILINGS 03 MARCH

21 1. By bending or by inserting prefabricated elbow fittings. K. Form simple and compound curves by bending members in jigs to produce uniform curvature for each repetitive configuration required; maintain cross section of member throughout entire bend without buckling, twisting, cracking, or otherwise deforming exposed surfaces of components. L. Close exposed ends of railing members with prefabricated end fittings. M. Provide wall returns at ends of wall-mounted handrails, unless otherwise indicated. Close ends of returns unless clearance between end of rail and wall is ¼ (6 mm) or less. N. Brackets, Flanges, Fittings, and Anchors: Provide wall brackets, flanges, miscellaneous fittings, and anchors to interconnect railing members to other work, unless otherwise indicated. O. Provide inserts and other anchorage devices for connecting railings to concrete or masonry work. Fabricate anchorage devices capable of withstanding loads imposed by railings. Coordinate anchorage devices with supporting structure. P. For railing posts set in concrete, provide steel sleeves not less than 6 (150 mm) long with inside dimensions not less than ½ (13 mm) greater than outside dimensions of post, with steel plate forming bottom closure. Q. Toe Boards: Where indicated, provide toe boards at railings around openings and at edge of open-sided floors and platforms. Fabricate to dimensions and details indicated FINISHES, GENERAL A. Comply with NAAMM s Metal Finishes Manual for Architectural and Metal Products for recommendations for applying and designating finishes. B. Protect mechanical finishes on exposed surfaces from damage by applying a strippable, temporary protective covering before shipping. C. Appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are acceptable if they are within one-half of the range of approved Samples. Noticeable variations in the same piece are not acceptable. Variations in appearance of other components are acceptable if they are within the range of approved Samples and are assembled or installed to minimize contrast. D. Provide exposed fasteners with finish matching appearance, including color and texture, of railings. PIPE & TUBE RAILINGS 03 MARCH

22 2.08 STEEL AND IRON FINISHES A. For nongalvanized steel railings, provide nongalvanized ferrous-metal fittings, brackets, fasteners, and sleeves, except galvanize anchors to be embedded in exterior concrete or masonry. B. Preparation for Shop Priming: After galvanizing, thoroughly clean railings of grease, dirt, oil, flux, and other foreign matter, and treat with metallicphosphate process. C. Preparation for Shop Priming: Prepare uncoated ferrous-metal surfaces to comply with minimum requirements indicated below for SSPC surface preparation specifications and environmental exposure conditions of installed railings: D. Apply shop primer to prepared surfaces of railings, unless otherwise indicated. Comply with requirements in SSPC-PA 1, Paint Application Specification No. 1: Shop, Field, and Maintenance Painting of Steel, for shop painting. Primer need not be applied to surfaces to be embedded in concrete or masonry. E. All railings to be painted in accordance with Section PART 3. EXECUTION 3.01 EXAMINATION A. Examine plaster and gypsum board assemblies, where reinforced to receive anchors, to verify that locations of concealed reinforcements have been clearly marked for Installer. Locate reinforcements and mark locations if not already done INSTALLATION, GENERAL A. Fit exposed connections together to form tight, hairline joints. B. Perform cutting, drilling, and fitting required for installing railings. Set railings accurately in location, alignment, and elevation; measured from established lines and levels and free of rack. 1. Do not weld, cut, or abrade surfaces of railing components that have been coated or finished after fabrication and that are intended for field connection by mechanical or other means without further cutting or fitting. 2. Set posts plumb within a tolerance of 1/16 in 3 (2 mm in 1 m). PIPE & TUBE RAILINGS 03 MARCH

23 3. Align rails so variations from level for horizontal members and variations from parallel with rake of steps and ramps for sloping members do not exceed ¼ in 12 (5 mm in 3 m). C. Adjust railings before anchoring to ensure matching alignment at abutting joints. D. Fastening to In-Place Construction: Use anchorage devices and fasteners where necessary for securing railings and for properly transferring loads to inplace construction RAILING CONNECTIONS A. Nonwelded Connections: Use mechanical or adhesive joints for permanently connecting railing components. Use wood blocks and padding to prevent damage to railing members and fittings. Seal recessed holes of exposed locking screws using plastic cement filler colored to match finish of railings. B. Welded Connections: Use fully welded joints for permanently connecting railing components. Comply with requirements for welded connections in Part 2 Fabrication Article whether welding is performed in the shop or in the field. C. Expansion Joints: Install expansion joints at locations indicated but not farther apart than required to accommodate thermal movement. Provide slip-joint internal sleeve extending 2 (50 mm) beyond joint on either side, fasten internal sleeve securely to 1 side, and locate joint within 6 (150 mm) of post ANCHORING POSTS A. Anchor posts to metal surfaces with oval flanges, angle type, or floor type as required by conditions, connected to posts and to metal supporting members as follows: 3.05 ANCHORING RAILING ENDS A. Anchor railing ends to concrete and masonry with round flanges connected to railing ends and anchored to wall construction with anchors and bolts. B. Anchor railing ends to metal surfaces with flanges bolted to metal surfaces and welded to railing ends ATTACHING HANDRAILS TO WALLS A. Attach handrails to wall with wall brackets. Provide brackets with 1-½ (38- mm) clearance from inside face of handrail and finished wall surface. 1. Use type of bracket with predrilled hole for exposed bolt anchorage. PIPE & TUBE RAILINGS 03 MARCH

24 B. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. C. Secure wall brackets to building construction as follows: 1. For concrete and solid masonry anchorage, use drilled-in expansion shields and hanger or lag bolts. 2. For hollow masonry anchorage, use toggle bolts ADJUSTING AND CLEANING A. Clean aluminum and stainless steel by washing thoroughly with clean water and soap and rinsing with clean water. B. Touchup Painting: Immediately after erection, clean field welds, bolted connections, and abraded areas of shop paint, and paint exposed areas with same material as used for shop painting to comply with SSPC-PA 1 for touching up shop-painted surfaces. C. Touchup Painting: Cleaning and touchup painting of field welds, bolted connections, and abraded areas of shop paint are specified in Division 9 painting Sections PROTECTION A. Protect finishes of railings from damage during construction period with temporary protective coverings approved by railing manufacturer. Remove protective coverings at time of Substantial Completion. B. Restore finishes damaged during installation and construction period so no evidence remains of correction work. Return items that cannot be refinished in the field to the shop; make required alterations and refinish entire unit, or provide new units. END OF SECTION PIPE & TUBE RAILINGS 03 MARCH