Hinesville First United Methodist Church SECTION STRUCTURAL STEEL

Transcription

1 SECTION STRUCTURAL STEEL PART 1 GENERAL 1.1 WORK INCLUDED A. The extent of structural steel work is shown on the drawings, including schedules, notes and details to show size and location of members, typical connections and type of steel. B. Approval by the Owner or his representative of shop drawings prepared by the fabricator indicates the fabricator has correctly interpreted the contract requirements. Approval does not relieve the fabricator of the responsibility for accuracy of detailed dimensions on shop drawings nor the general fit-up of parts to be assembled in the field. 1.2 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section. B. Related Work: Miscellaneous Metal Steel Joists 1.3 SUMMARY A. This Section includes fabrication and erection of structural steel work, as shown on drawings including schedules, notes, and details showing size and location of members, typical connections, and types of steel required. B. Structural steel is that work defined in American Institute of Steel Construction (AISC) "Code of Standard Practice" and as otherwise shown on drawings. C. Miscellaneous Metal Fabrications are specified elsewhere in Division 5. D. Refer to Division 3 for anchor rod installation in concrete, Division 4 for anchor rod installation in masonry. 1.4 SUBMITTALS A. General: Submit the following in accordance with Conditions of Contract and Division 1 Specification Sections. B. Product data or manufacturer's specifications and installation instructions for following products. Include laboratory test reports and other data to show compliance with specifications (including specified standards). STRUCTURAL STEEL

2 1. Structural steel (each type), including certified copies of mill reports covering chemical and physical properties. 2. High-strength bolts (each type), including nuts and washers. 3. Direct Tension Indicators if used. 4. Unfinished bolts and nuts. 5. Structural steel primer paint. 6. Shrinkage-resistant grout. C. Shop drawings prepared under supervision of a licensed Structural Engineer, including complete details and schedules for fabrication and assembly of structural steel members, procedures, and diagrams. 1. Include details of cuts, connections, camber, holes, and other pertinent data. Indicate welds by standard AWS symbols and show size, length, and type of each weld. 2. Provide setting drawings, templates, and directions for installation of anchor bolts and other anchorages to be installed as work of other sections. 3. Submit shop drawings including complete details and schedule for fabrication and shop assembly of members, and details, schedules, procedures and diagrams, showing the sequence of erection. 4. Contractor shall check, approve and stamp all shop drawings prior to submittals to Architect. 5. The shop drawings shall be reviewed by Architect prior to fabrication. Architect=s review is for design only. Contractor is responsible for dimensions, quantities, and coordination with other trades. Engineer=s review and acceptance of shop drawings is subject to all contract requirements and does not authorize any changes involving additional cost to Owner. 6. Include details of cuts, connections, splices, camber and holes. Indicate welds by standard AWS symbols, and show size, length and type of each weld. 7. Provide setting drawings, templates, and directions for the installation of anchor bolts and anchorages to be installed by others. 8. Shop drawings shall be made to conform to the design drawings. Contract drawings shall take precedence over Shop Drawings. 9. Shop drawings that include elements designed by the fabricator shall be signed and sealed by a professional engineer licensed in the State of Georgia. D. Test reports conducted on shop- and field-bolted and welded connections. Include data on type(s) of tests conducted and test results. E. Certified copies of each survey conducted by a licensed Land Surveyor, showing elevations and locations of concrete and masonry bearing surfaces, base plates and locations of anchor rods, bearing plates and other embedments to receive structural steel. Indicate discrepancies between actual installation and contract documents. F. Certified copies of each survey conducted by a licensed Land Surveyor, showing final elevations and locations of columns and other major structural steel elements. Steel survey shall include column plumbness after structural steel erection. Indicate discrepancies between actual installation and contract documents. G. For each approved fabricator that is exempt from special inspections of shop fabrications and implementation procedures in accordance with Section of IBC 2012, the Contractor shall submit AFabricator=s Certificate of Compliance@. Contractor shall also provide copies of STRUCTURAL STEEL

3 fabricator=s certification or building code evaluation services report and fabricator=s quality control manual. 1.5 QUALITY ASSURANCE A. Codes and Standards: 1. Comply with provisions of following, except as otherwise indicated: 2. American Institute of Steel Construction (AISC) "Code of Standard Practice for Steel Buildings and Bridges." 3. AISC "Specifications for Structural Steel Buildings," including "Commentary." 4. AISC "Specification for Structural Joints using High-Strength 5. American Welding Society (AWS) D1.1 "Structural Welding Code - Steel." 6. ASTM A6 "General Requirements for Delivery of Rolled Steel Plates, Shapes, Sheet Piling and Bars for Structural Use." B. Fabrication and Erection Qualifications: 1. Fabricator and erector must have a minimum of five years experience with a proven record of satisfactory work. 2. Fabricator and erector must have had work of similar type of construction to be considered as Asatisfactory work@. 3. Fabricator who participates in the AISC Quality Certification Program and is designated an AISC-Certified Plant, Category Sbd. 4. The Architect shall be the sole judge as to whether the fabricator and erector satisfactorily meets these requirements. 5. ASteel Fabricator@ and ASteel Erector@ shall be an organized steel company engaged in this type of work. 6. If any fabricator or steel erector is doubtful as to whether he meets these requirements, he may submit information to the Architect at least 10 days before the bid opening in order to qualify. C. Qualifications for Welding Work: 1. Qualify welding procedures and welding operators in accordance with AWS "Qualification" requirements. 2. Provide certification that welders to be employed in work have satisfactorily passed AWS qualification tests within the previous 12 months. 3. If recertification of welders is required, retesting will be Contractor's responsibility and shall be at no cost to the Owner. D. Source Quality Control: 1. Materials and fabrication procedures are subject to inspection and tests in the mill, shop and field, conducted by a qualified inspection agency. Such inspections and tests will not relieve the Contractor of responsibility for providing materials and fabrication procedures in compliance with specified requirements. 2. Remove and replace materials or fabricated components which do not comply. E. Design of Members and Connections: 1. All details are typical; similar details apply to similar conditions, unless otherwise indicated on the drawings. Verify dimensions at the site without causing delay in the work. 2. Notify the Architect whenever design of members and connections for any portion of the structures is not indicated on the drawings or specified herein. STRUCTURAL STEEL

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5 F. Land Surveyor Qualifications: 1. A Professional Land Surveyor who is legally qualified to practice in jurisdiction where project is located and with a minimum of five years in providing surveying services of the kind indicated. 1.6 DELIVERY, STORAGE, AND HANDLING A. Deliver materials to site at such intervals to ensure uninterrupted progress of work. B. Deliver anchor bolts and anchorage devices, which are to be embedded in cast-in-place concrete or masonry, in ample time to not to delay work. C. Store materials to permit easy access for inspection and identification. Keep steel members off ground by using pallets, platforms, or other supports. Protect steel members and packaged materials from erosion and deterioration. If bolts and nuts become dry or rusty, clean and relubricate before use. D. Do not store materials on structure in a manner that might cause distortion or damage to members or supporting structures. Repair or replace damaged materials or structures as directed. PART 2 PRODUCTS 2.1 MATERIALS A. Metal Surfaces, General: For fabrication of work that will be exposed to view, use only materials that are smooth and free of surface blemishes including pitting, rust and scale seam marks, roller marks, rolled trade names, and roughness. Remove such blemishes by grinding, or by welding and grinding, prior to cleaning, treating, and applying surface finishes. B. Structural Steel Wide Flange Shapes: ASTM A992 Grade 50. C. Other Structural Steel Shapes, Plates, and Bars: ASTM A36. D. Cold-Formed Steel Tubing: ASTM A500, Grade B, Grade 46. E. Steel Castings: ASTM A27, Grade 65-35, medium-strength carbon steel. F. Anchor Rods: ASTM F1554, headed type, grade 36, unless otherwise indicated. G. Unfinished Threaded Fasteners: 1. ASTM A 307, Grade A, regular low-carbon steel bolts and nuts. 2. Provide either hexagonal or square heads and nuts, except use only hexagonal units for exposed connections. H. High-Strength Threaded Fasteners: 1. Heavy hexagon structural bolts, heavy hexagon nuts, and hardened washers, as follows: 2. Quenched and tempered medium-carbon steel bolts, nuts, and washers, complying with ASTM A 325 or A Where indicated as galvanized, provide units that are zinc coated, either mechanically deposited complying with ASTM B 695, Class 50, or hot-dip galvanized complying with ASTM A 153. STRUCTURAL STEEL

6 4. Twist-off type tension-control bolt assemblies complying with ASTM F1852. I. Direct Tension Indicators: 1. ASTM F 959, type as required. 2. Use on all A325 and A490 bolts. J. Electrodes for Welding: Comply with AWS Code. K. Structural Steel Primer Paint: SSPC - Paint 11. L. Nonmetallic Shrinkage-Resistant Grout: 1. Premixed, nonmetallic, noncorrosive, nonstaining product containing selected silica sands, Portland cement, shrinkage compensating agents, plasticizing and water-reducing agents, complying with CE-CRD-C FABRICATION A. Shop Fabrication and Assembly: 1. Fabricate and assemble structural assemblies in shop to greatest extent possible. Fabricate items of structural steel in accordance with AISC Specifications and as indicated on final shop drawings. Provide parabolic camber in structural members where indicated. 2. Properly mark and match-mark materials for field assembly. Fabricate for delivery sequence that will expedite erection and minimize field handling of materials. B. Connections: 1. Weld or bolt shop connections, as indicated. 2. Provide high-strength threaded fasteners for all principal bolted connections, except unfinished bolts may be used for temporary bracing to facilitate erection. Bolts through 4" wide beam flanges shall be 5/8" diameter. Other bolts shall be 3/4" diameter. 3. Unless indicated or detailed otherwise on plans, all connections shall be detailed and designed by the fabricator under the direct supervision of a Professional Engineer, registered in the State of Georgia. Connections shall be designed as unrestrained flexible connections described as simple connections under Section B3 of the AISC Specifications for Structural Steel Buildings. 4. Except where otherwise detailed or specified on the contract drawings, all framed connections shall be detailed and designed by the fabricator in accordance with Part 9 of the AISC Manual of Steel Construction. Framed beam connections shall be capable of transmitting a minimum of fifty percent of total capacity of beam determined from the tables in Part 3 of AISC Manual of Steel Construction for shape and span unless otherwise noted on the drawings. 5. Design calculations for the connections designed by the contractor shall be submitted for the files of the architect. Calculations shall bear the seal of a Professional Engineer registered in the State of Georgia. Shop drawings containing connections for which calculations have not been received will be returned unchecked as an incomplete submittals. 6. Connections shall be detailed and designed with provisions for eccentricities. Minimum connection capacity to be 10 kips unless otherwise noted on the drawings. C. Bolt field connections, except where welded connections or other connections are indicated. 1. Provide high-strength threaded fasteners for all bolted connections. 2. Provide unfinished threaded fasteners for only bolted connections of secondary framing members to primary members (including purlins, girts, and other framing members taking only nominal stresses) and for temporary bracing to facilitate erection. STRUCTURAL STEEL

7 3. All bolted connections shall be pretensioned. D. High-Strength Bolted Construction: 1. Install high-strength threaded fasteners in accordance with AISC "Specifications for Structural Joints using ASTM A 325 or A 490 Bolts." 2. All bolts shall have a hardened washer under the turning element. 3. Installation of direct tension indicator washers or direct tension indicator bolt systems shall be in accordance with manufacturer=s instructions. E. Welded Construction: Comply with AWS Code for procedures, appearance and quality of welds, and methods used in correcting welding work. F. Assemble and weld built-up sections by methods that will produce true alignment of axes without warp. G. Expansion Joints: Provide expansion joints in steel shelf angles when part of structural steel frame; locate at vertical brick expansion joints as indicated on drawings. H. Cooperation with Other Trades: 1. Provide holes for securing other work to structural steel framing, and for the passage of other work through steel framing members, as shown on the final shop drawings. Provide threaded nut welded to framing, and other specialty items as shown to receive other work. 2. Cut, drill or punch holes perpendicular to metal surfaces. Do not flame cut holes or enlarge holes by burning. Drill holes in bearing plates. 3. All loose plates, bolts and inserts between the structural steel and work of other trades are to be furnished by the fabricator and set by other trades. 4. All loose lintels to be furnished by the fabricator and set by other trades. 2.3 SHOP PAINTING A. General: 1. Shop-paint structural steel, except those members or portions of members to be embedded in concrete or mortar. Paint embedded steel that is partially exposed on exposed portions and initial 2 inches of embedded areas only. 2. Do not paint surfaces to be welded or high-strength bolted with friction-type connections. 3. Do not paint surfaces scheduled to receive sprayed-on fireproofing. 4. Apply 2 coats of paint to surfaces that are inaccessible after assembly or erection. Change color of second coat to distinguish it from first. B. Surface Preparation: After inspection and before shipping, clean steelwork to be painted. Remove loose rust, loose mill scale, and spatter, slag, or flux deposits. Clean steel in accordance with Steel Structures Painting Council (SSPC) as follows: 1. SP-1 "Solvent Cleaning." 2. SP-2 "Hand-Tool Cleaning." 3. SP-3 "Power-Tool Cleaning." 4. SP-6 "Commercial Blast Cleaning." 5. SP-7 "Brush-Off Blast Cleaning." STRUCTURAL STEEL

8 C. Painting: Immediately after surface preparation, apply structural steel primer paint in accordance with manufacturer's instructions and at a rate to provide dry film thickness of not less than 2.0 mils. Use painting methods that result in full coverage of joints, corners, edges, and exposed surfaces. D. Painting: Provide a two-coat, shop-applied paint system complying with Steel Structures Painting Council (SSPC) Paint System Guide No SOURCE QUALITY CONTROL A. General: 1. Materials and fabrication procedures are subject to inspection and tests in mill, shop, and field, conducted by a qualified inspection agency. Testing agency will perform at least one shop inspection at the start of fabrication to verify the fabricators quality assurance and quality control procedures, and qualification for exemption from shop inspections required by IBC 2012 Chapter 17. Such inspections and tests will not relieve Contractor of responsibility for providing materials and fabrication procedures in compliance with specified requirements. 2. Promptly remove and replace materials or fabricated components that do not comply. B. Design of Members and Connections: 1. Details shown are typical; similar details apply to similar conditions, unless otherwise indicated. Verify dimensions at site whenever possible without causing delay in the work. 2. Promptly notify Architect whenever design of members and connections for any portion of structure are not clearly indicated. PART 3 EXECUTION 3.1 ERECTION A. General: 1. Comply with AISC Specifications, AISC Code of Standard Practice, OSHA requirements, and as herein specified. 2. All steel framing shall be considered non-self-supporting steel frames as defined by Article of the AISC Code of Standard Practice dated September 1, Contractor shall provide all necessary temporary support until required connections or other interacting elements are complete, including all diaphragms, horizontal bracing, moment frames, braced frames, and shear walls. B. Surveys: 1. Before erection begins, survey elevations and plan locations of concrete and masonry-bearing surfaces and locations of anchor rods, bearing plates, and other embedments to receive structural framing, with Erector present, for compliance with requirements and specified tolerances. a. Engage land surveyor to perform surveying. b. Survey submittals shall indicate elevations and plan locations, and discrepancies between actual installation and Contract Documents. c. Connections to surveyed items cannot be made until submittal has been approved by Design Professional and unsatisfactory conditions have been corrected. 2. As erection proceeds, survey final elevations and plan locations of columns, beams, and other major structural steel elements for compliance with requirements and specified tolerances. a. Engage land surveyor to perform surveying. STRUCTURAL STEEL

9 b. Steel frame survey submittals shall indicate final elevations and plan locations of columns, beams, and other major framing, as well as column plumbness. Indicate discrepancies between actual installation and the Contract Documents. c. Placement or application of other materials which might obscure or restrain surveyed elements cannot be made until submittal has been approved by the Design Professional and unsatisfactory conditions have been corrected. C. Temporary Shoring and Bracing: Provide temporary shoring and bracing members with connections of sufficient strength to bear imposed loads. Remove temporary members and connections when permanent members are in place and final connections are made. Provide temporary guy lines to achieve proper alignment of structures as erection proceeds. D. Temporary Planking: Provide temporary planking and working platforms as necessary to effectively complete work. E. Setting Base Plates and Bearing Plates: 1. Clean concrete and masonry bearing surfaces of bond-reducing materials and roughen to improve bond to surfaces. Clean bottom surface of base and bearing plates. 2. Set loose and attached base plates and bearing plates for structural members on wedges or other adjusting devices. 3. Tighten anchor bolts after supported members have been positioned and plumbed. Do not remove wedges or shims, but if protruding, cut off flush with edge of base or bearing plate prior to packing with grout. 4. Pack grout solidly between bearing surfaces and bases or plates to ensure that no voids remain. Finish exposed surfaces, protect installed materials, and allow to cure. 5. For proprietary grout materials, comply with manufacturer's instructions. F. Field Assembly: 1. Set structural frames accurately to lines and elevations indicated. Align and adjust various members forming part of complete frame or structure before permanently fastening. Clean bearing surfaces and other surfaces that will be in permanent contact before assembly. Perform necessary adjustments to compensate for discrepancies in elevations and alignment. 2. Level and plumb individual members of structure within specified AISC tolerances. 3. Splice members only where indicated and accepted on shop drawings. G. Erection Bolts: 1. On exposed welded construction, remove erection bolts, fill holes with plug welds, and grind smooth at exposed surfaces. 2. Comply with AISC Specifications for bearing, adequacy of temporary connections, alignment, and removal of paint on surfaces adjacent to field welds. 3. Do not enlarge unfair holes in members by burning or by using drift pins, except in secondary bracing members. Ream holes that must be enlarged to admit bolts. H. Gas Cutting: Do not use gas cutting torches in field for correcting fabrication errors in primary structural framing. Cutting will be permitted only on secondary members that are not under stress, as acceptable to Architect. Finish gas-cut sections equal to a sheared appearance when permitted. I. Touch-Up Painting: 1. Immediately after erection, clean field welds, bolted connections, and abraded areas of shop paint. Apply paint to exposed areas using same material as used for shop painting. STRUCTURAL STEEL

10 2. Apply by brush or spray to provide minimum dry film thickness of 2.0 mils. 3.2 QUALITY CONTROL A. Engage an independent testing and inspection agency to inspect high-strength bolted connections and welded connections and to perform tests and prepare test reports. B. Testing agency shall conduct and interpret tests, state in each report whether test specimens comply with requirements, and specifically state any deviations therefrom. C. Provide access for testing agency to places where structural steel work is being fabricated or produced so that required inspection and testing can be accomplished. D. Testing agency may inspect structural steel at plant before shipment. E. Correct deficiencies in structural steel work that inspections and laboratory test reports have indicated to be not in compliance with requirements. Perform additional tests, at Contractor's expense, as necessary to reconfirm any noncompliance of original work and to show compliance of corrected work. F. Shop-Bolted Connections: 1. Inspect or test in accordance with AISC specifications. 2. Verify that gaps of installed Direct Tension Indicators are less than gaps specified in ASTM F 959, Table 2. G. Shop Welding: Inspect and test during fabrication of structural steel assemblies, as follows: 1. Certify welders and conduct inspections and tests as required. Record types and locations of defects found in work. Record work required and performed to correct deficiencies. 2. Perform visual inspection of all welds. 3. Perform tests of tension and moment resisting welds using one of the following procedures: a. Liquid Penetrant Inspection: ASTM E 165. b. Magnetic Particle Inspection: ASTM E 709; performed on root pass and on finished weld. Cracks or zones of incomplete fusion or penetration not acceptable. c. Radiographic Inspection: ASTM E 94; minimum quality level "2-2T." d. Ultrasonic Inspection: ASTM E 164. H. Field-Bolted Connections: 1. Inspect in accordance with AISC specifications. 2. For Direct Tension Indicators, comply with requirements of ASTM F 959. Verify that gaps are less than gaps specified in Table 2. STRUCTURAL STEEL

11 I. Field Welding: Inspect and test during erection of structural steel as follows: 1. Certify welders and conduct inspections and tests as required. Record types and locations of defects found in work. Record work required and performed to correct deficiencies. 2. Perform visual inspection of all welds. 3. Perform tests of tension and moment resisting welds using one of the following procedures: a. Liquid Penetrant Inspection: ASTM E 165. b. Magnetic Particle Inspection: ASTM E 709; performed on root pass and on finished weld. Cracks or zones of incomplete fusion or penetration not acceptable. c. Radiographic Inspection: ASTM E 94; minimum quality level "2-2T." d. Ultrasonic Inspection: ASTM E 164. END OF SECTION STRUCTURAL STEEL

12 SECTION PIPE AND TUBE RAILINGS PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: All Interior and exterior Rails including those Marked as Pipe Rail /Guard Rail 1. Steel pipe railings. Fully welded 1.3 PERFORMANCE REQUIREMENTS A. Delegated Design: Design railings, including comprehensive engineering analysis by a qualified professional engineer, using performance requirements and design criteria indicated. B. 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. 2. Aluminum: The lesser of minimum yield strength divided by 1.65 or minimum ultimate tensile strength divided by Stainless Steel: 60 percent of minimum yield strength. C. Structural Performance: 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. 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: a. Concentrated load of 50 lbf applied horizontally on an area of 1 sq. ft. Infill load and other loads need not be assumed to act concurrently. D. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes acting on exterior metal fabrications by preventing buckling, opening of joints, overstressing of components, failure of connections, and other detrimental effects. 1. Temperature Change: 120 deg F ambient; 180 deg F material surfaces. PIPE & TUBE RAILINGS

13 E. Control of Corrosion: Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials. 1.4 SUBMITTALS A. Product Data: For the following: 1. Manufacturer's product lines of mechanically connected railings. 2. Railing brackets. 3. Grout, anchoring cement, and paint products. B. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. C. Delegated-Design Submittal: For installed products indicated to comply with performance requirements and design criteria, including analysis data signed and sealed by the qualified professional engineer responsible for their preparation. D. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, according to ASTM E 894 and ASTM E QUALITY ASSURANCE A. Source Limitations: Obtain each type of railing from single source from single manufacturer. B. Welding Qualifications: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding Code - Steel." C. Welding Qualifications: Qualify procedures and personnel according to the following: 1. AWS D1.2/D1.2M, "Structural Welding Code - Aluminum." 1.6 PROJECT CONDITIONS A. Field Measurements: Verify actual locations of walls and other construction contiguous with metal fabrications by field measurements before fabrication. 1.7 COORDINATION AND SCHEDULING A. Coordinate selection of shop primers with topcoats to be applied over them. Comply with paint and coating manufacturers' written recommendations to ensure that shop primers and topcoats are compatible with one another. B. 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. C. 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. PIPE & TUBE RAILINGS

14 PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Aluminum Pipe and Tube Railings: a. Blum, Julius & Co., Inc. b. Braun, J. G., Company; a division of the Wagner Companies. c. Tubular Specialties Manufacturing, Inc. 2.2 METALS, GENERAL 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. 2.3 STEEL AND IRON A. Tubing: ASTM A 500 (cold formed) or ASTM A 513. 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. Cast Iron: Either gray iron, ASTM A 48/A 48M, or malleable iron, ASTM A 47/A 47M, unless otherwise indicated. 2.4 FASTENERS A. General: Provide the following: 1. Aluminum Railings: Type 304 Type 316 stainless-steel fasteners. 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. PIPE & TUBE RAILINGS

15 2. Provide concealed fasteners for interconnecting railing components and for attaching them to other work, unless exposed fasteners are unavoidable or are the standard fastening method for railings indicated. 3. Provide Phillips flat-head machine screws for exposed fasteners unless otherwise indicated. D. Post-Installed Anchors: Torque-controlled expansion anchors or chemical anchors capable of sustaining, without failure, a load equal to six times the load imposed when installed in unit masonry and four times the load imposed when installed in concrete, as determined by testing according to ASTM E 488, conducted by a qualified independent testing agency. 1. Material for Interior Locations: Carbon-steel components zinc-plated to comply with ASTM B 633 or ASTM F 1941, Class Fe/Zn 5, unless otherwise indicated. 2. Material for Exterior Locations and Where Stainless Steel is Indicated: Alloy Group 1 stainless-steel bolts, ASTM F 593, and nuts, ASTM F MISCELLANEOUS MATERIALS A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded. 1. For aluminum railings, provide type and alloy as recommended by producer of metal to be welded and as required for color match, strength, and compatibility in fabricated items. B. Nonshrink, Nonmetallic Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C Provide grout specifically recommended by manufacturer for interior and exterior applications. C. Anchoring Cement: Factory-packaged, nonshrink, nonstaining, hydraulic-controlled expansion cement formulation for mixing with water at Project site to create pourable anchoring, patching, and grouting compound. 1. Water-Resistant Product: provide formulation that is resistant to erosion from water exposure without needing protection by a sealer or waterproof coating and that is recommended by manufacturer for exterior use. 2.6 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 inch (1 mm) unless otherwise indicated. Remove sharp or rough areas on exposed surfaces. PIPE & TUBE RAILINGS

16 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. Welded Connections: Fabricate railings to interconnect members with concealed internal welds that eliminate surface grinding, using manufacturer's standard system of sleeve and socket fittings J. Form changes in direction as follows: 1. By flush bends or by inserting prefabricated flush-elbow fittings. K. Bend members in jigs to produce uniform curvature for each 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 1/4 inch (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. 1. At brackets and fittings fastened to plaster or gypsum board partitions, provide crushresistant fillers, or other means to transfer loads through wall finishes to structural supports and prevent bracket or fitting rotation and crushing of substrate. 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. 2.7 FINISHES, GENERAL A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes. PIPE & TUBE RAILINGS

17 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. 2.8 FINISHES A. Shop primer ; Field painted PART 3 - EXECUTION 3.1 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. 3.2 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 inch in 3 feet. 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 1/4 inch in 12 feet. C. Corrosion Protection: Coat concealed surfaces of aluminum that will be in contact with grout, concrete, masonry, wood, or dissimilar metals, with a heavy coat of bituminous paint. D. Adjust railings before anchoring to ensure matching alignment at abutting joints. E. Fastening to In-Place Construction: Use anchorage devices and fasteners where necessary for securing railings and for properly transferring loads to in-place construction. PIPE & TUBE RAILINGS

18 3.3 RAILING CONNECTIONS A. Nonwelded Connections: Use mechanical or adhesive joints for permanently connecting railing components. 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 "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 inches (50 mm) beyond joint on either side, fasten internal sleeve securely to one side, and locate joint within 6 inches (150 mm) of post. 3.4 ANCHORING POSTS A. Use metal sleeves preset and anchored into concrete for installing posts. After posts have been inserted into sleeves, fill annular space between post and sleeve with nonshrink, nonmetallic grout or anchoring cement, mixed and placed to comply with anchoring material manufacturer's written instructions. B. Form or core-drill holes not less than 5 inches deep and 3/4 inch larger than OD of post for installing posts in concrete. Clean holes of loose material, insert posts, and fill annular space between post and concrete with nonshrink, nonmetallic grout or anchoring cement, mixed and placed to comply with anchoring material manufacturer's written instructions. C. Cover anchorage joint with flange of same metal as post, attached to post with set screws. D. Leave anchorage joint exposed with 1/8-inch buildup, sloped away from post. E. 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: 1. For aluminum pipe railings, attach posts using fittings designed and engineered for this purpose. F. Install removable railing sections, where indicated, in slip-fit metal sockets cast in concrete. 3.5 ATTACHING RAILINGS A. Anchor railing ends at walls with round flanges anchored to wall construction and welded to railing ends or connected to railing ends using nonwelded connections. B. Anchor railing ends to metal surfaces with flanges bolted to metal surfaces and welded to railing ends or connected to railing ends using nonwelded connections. PIPE & TUBE RAILINGS

19 C. Attach railings to wall with wall brackets, except where end flanges are used. Provide brackets with 1-1/2-inch (38-mm) clearance from inside face of handrail and finished wall surface. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. 1. Use type of bracket with predrilled hole for exposed bolt anchorage. 2. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. D. Secure wall brackets and railing end flanges 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. 3. For wood stud partitions, use hanger or lag bolts set into studs or wood backing between studs. Coordinate with carpentry work to locate backing members. 4. For steel-framed partitions, use hanger or lag bolts set into fire-retardant-treated wood backing between studs. Coordinate with stud installation to locate backing members. 5. For steel-framed partitions, use self-tapping screws fastened to steel framing or to concealed steel reinforcements. 6. For steel-framed partitions, use toggle bolts installed through flanges of steel framing or through concealed steel reinforcements. 3.6 ADJUSTING AND CLEANING A. Clean aluminum by washing thoroughly with clean water and soap and rinsing with clean water. 3.7 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. END OF SECTION PIPE & TUBE RAILINGS

20 SECTION DECORATIVE METAL PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Exterior Decorative welded Railings 2. Exterior Decorative Entrance canopy 1.3 ACTION SUBMITTALS A. Product Data: For each type of product indicated. B. Shop Drawings: Show fabrication and installation details for decorative metal. 1. Include plans, elevations, component details, and attachment details. 2. Indicate materials and profiles of each decorative metal member, fittings, joinery, finishes, fasteners, anchorages, and accessory items. C. Samples: For each fence material and for each color specified. 1. Provide Samples 12 inches in length for linear materials. 1.4 INFORMATIONAL SUBMITTALS A. Welding certificates. B. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for decorative metallic-coated steel tubular picket fences, including finish, indicating compliance with referenced standard and other specified requirements. 1.5 CLOSEOUT SUBMITTALS A. Maintenance Data: For gate operators to include in maintenance manuals. DECORATIVE METAL

21 1.6 QUALITY ASSURANCE A. Installer Qualifications: Fabricator of products. PART 2 - PRODUCTS 2.1 COPPER A. Tube: ASTM B 75/B 75M, Alloy UNS C12200 (phosphorous deoxidized, high residual phosphorous copper). B. Plate, Sheet, Strip, and Bars: ASTM B 152/B 152M, Alloy UNS C11000 (electrolytic tough pitch copper) or Alloy UNS C12200 (phosphorous deoxidized, high-residual phosphorous copper). 2.2 BRONZE A. Extruded Shapes: ASTM B 455, Alloy UNS C38500 (architectural bronze). B. Grip rail profile King Arch Metal 1-15/16 wide 6-907BR, provide volite at top 64x-BR and lambs tong at bottom 6 5xl-BR 2.3 MISCELLANEOUS MATERIALS A. Welding Rods and Bare Electrodes: Select according to AWS specifications for metal alloy welded. 1. For aluminum, provide type and alloy as recommended by producer of metal to be welded and as required for strength and compatibility in fabricated items. B. Nonshrink Grout: Factory-packaged, nonstaining, noncorrosive, nongaseous grout complying with ASTM C 1107 and specifically recommended by manufacturer for exterior applications. 2.4 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. Shop assemble railings 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. DECORATIVE METAL

22 C. Cut, drill, and punch metals cleanly and accurately. Remove burrs and ease edges to a radius of approximately 1/32 inch 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 are exposed to weather in a manner that excludes 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. Welded Connections for Aluminum Pipe: Fabricate railings to interconnect members with concealed internal welds that eliminate surface grinding, using manufacturer's standard system of sleeve and socket fittings. J. Close exposed ends of railing members with prefabricated end fittings. K. 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 1/4 inch or less. L. Brackets, Flanges, Fittings, and Anchors: Provide wall brackets, flanges, miscellaneous fittings, and anchors to interconnect railing members to other work unless otherwise indicated. M. 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. PART 3 - EXECUTION 3.1 EXAMINATION A. Examine areas and conditions, with Installer present, for compliance with requirements for site clearing, earthwork, pavement work, construction layout, and other conditions affecting performance of the Work. B. Do not begin installation before final grading is completed unless otherwise permitted by Architect. DECORATIVE METAL

23 C. Proceed with installation only after unsatisfactory conditions have been corrected. 3.2 RAILINGS A. Fabricate railing to match existing and as sheen on drawings B. Shop primer field painted C. Anchor railing ends to concrete and masonry with brackets on underside of rails connected to railing ends and anchored to wall construction with anchors and bolts. D. Attach handrails to walls with wall brackets except where end flanges are used. Provide brackets with 1-1/2-inch clearance from inside face of handrail and finished wall surface. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. 1. Use type of bracket with predrilled hole for exposed bolt anchorage. 2. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. E. Secure wall brackets and railing end flanges 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. 3. For wood stud partitions, use hanger or lag bolts set into wood backing between studs. Coordinate with carpentry work to locate backing members. 4. For steel-framed partitions, fasten brackets directly to steel framing or concealed steel reinforcements using self-tapping screws of size and type required to support structural loads. 3.3 CANOPY A. Fabricate railing to match existing and as sheen on drawings B. Shop primer field painted C. Anchor to masonry with brackets on underside of rails connected to railing ends and anchored to wall construction with anchors and bolts. D. Attach to walls with wall brackets except where end flanges are used. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. 1. Use type of bracket with predrilled hole for exposed bolt anchorage. 2. Locate brackets as indicated or, if not indicated, at spacing required to support structural loads. E. Secure wall brackets and railing end flanges 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. 3. Coordinate though wall flashing. provide sheet copper pr-bent for installing by division 4 masonry DECORATIVE METAL

24 3.4 ADJUSTING A. Gates: Adjust gates to operate smoothly, easily, and quietly, free of binding, warp, excessive deflection, distortion, nonalignment, misplacement, disruption, or malfunction, throughout entire operational range. Confirm that latches and locks engage accurately and securely without forcing or binding. END OF SECTION DECORATIVE METAL