SECTION STRUCTURAL STEEL

Transcription

1 HWY 99 & 196 TH STREET SW SECTION STRUCTURAL STEEL PART 1 GENERAL 1.1 SUMMARY A. This Section specifies the construction of all structural metal framing, including columns, beams, lintels attached to steel columns, lintels over 200 lbs in weight, masonry bearing plates, connectors, shelf angles, primer, and grout. B. Contractor shall provide all labor, materials, equipment, and services necessary to design, fabricate, deliver, and install all structural metal framing work, as indicated on the Drawings, in accordance with local codes and standards, or as specified herein. This work shall include but not be limited to fabricating, delivering, and erecting structural metal framing, cutting, fitting, welding, cleaning, painting, providing temporary supports, and removing all temporary steel elements necessary for erection of structural metal. C. Coordinate delivery with other work to avoid delay. All work shall be coordinated with other sections. 1. Related Sections: a. Section 05500, "Metal Fabrications" for furnishing steel lintels for unit masonry. b. Section 07620, "Sheet Metal Flashing and Trim" for furnishing manufactured reglets installed in masonry joints for metal flashing. 1.2 SUBMITTALS A. Submittals shall be provided in accordance with Sections 01330, and B. Product Data: For each type of product indicated. C. Shop Drawings: 1. For structural metal framing: Base drawings on Construction Documents, and details. 2. Shop drawings shall clearly show plans, elevations, sections, details, and attachments to other work, location, fastening and anchorage details, and materials required. 3. Submit complete shop fabrication details and erection diagrams. Such shop details and erection diagrams shall give all pertinent information of construction methods proposed, together with all required dimensions for the proper fitting for the connection with other work and materials. 4. Show, in detail, fabrication of all structural metal components included in the Contract. D. Samples for review in accordance with Sections and E. Material certificates for each type of product indicated. Include statements of material properties indicating compliance with requirements, standards, and type designations within standards. Include material test reports, substantiating compliance with requirements. F. Welding certificates. G. Mill test reports. H. Qualification Data. I. Source quality control test reports. J. Substitutions shall be requested in accordance with Sections and QUALITY ASSURANCE A. Installer Qualifications: Experience in performing work of this section, specializing in installation of work similar to that required for this project, employing workers who are skilled in this area of work, and whose projects have a record of successful in-service performance. 1. Welding: Qualified procedures and personnel according to AWS D1.1, Structural Welding Code. B. Manufacturers shall meet the industry standards and codes for the materials identified on the Drawings and in the Specifications herein, including but not limited to: 1. American Institute of Steel Construction a. Specifications for the Design, Fabrication and Erection of Steel for Buildings. STRUCTURAL STEEL

2 HWY 99 & 196 TH STREET SW b. Code of Standard Practice c. Manual of Steel Construction 2. American Welding Society: Code for Welding in Building Construction AWS D Latest edition of each of above governing standards shall apply. 4. Fabricate in accordance with the AISC Quality Certification Program. C. Certification: Product certificates signed by manufacturer, certifying materials comply with specified performance characteristics, criteria, and physical requirements. D. Manufacturer s instructions for installation shall be delivered and stored with the materials. E. Testing: As required by the latest industry codes and standards. 1. Field tests: Where a welded splice is fabricated in beams or columns, other than those detailed, the fabricator shall have the splice connection tested using one of the following methods: a. magnetic particle b. radiographic c. ultrasonic 2. The testing shall be conducted by an independent testing laboratory and a report submitted to the Architect and Owner Representative. 3. The costs of this testing shall be borne by the fabricator. F. Performance requirements: 1. Provide assemblies capable of withstanding design loads within limits and under conditions indicated on the Drawings. 2. Connections: Provide details of simple shear connections required by the Contract Documents to be selected or completed by structural-steel fabricator to withstand ASD-service and LRFD loads indicated, and comply with other information and restrictions indicated. 3. Select and complete connections using schematic details indicated, and AISC's "Manual of Steel Construction, Load and Resistance Factor Design," Volume 2, Part 9. G. Tolerances shall conform to industry codes and standards, except as otherwise noted. H. Warranty: 1. Manufacturer s Warranty: Submit, for Owner s acceptance, manufacturer s standard warranty document executed by authorized company official. Manufacturer s warranty is in addition to, and not a limitation of, other rights Owner may have under Contract Documents. 2. Warranty Period: two (2) years commencing on Date of Certificate of Occupancy. 3. Additional requirements for product warranties are included in Section DELIVERY, STORAGE AND HANDLING A. Transport and handle all materials in such a manner as to prevent damage. Dumping on the ground is not permitted. B. Locate storage piles, stacks, or bins to avoid or protect material from heavy and unnecessary traffic. C. Furnish temporary protection for all exposed edges and corners. D. Deliver all packaged materials in original, unopened, undamaged containers, with identification labels intact, and bearing the name of the manufacturer and brand. E. Ordering: Comply with manufacturer s ordering instructions and lead time requirements to avoid construction delays. F. Store all steel materials off the ground, and protect materials from corrosion and deterioration. Store fasteners in a protected location. Clean and lubricate bolts and nuts that become dry or rusty before use. G. Protect materials from exposure to harmful weather conditions, and at temperature and humidity conditions recommended by manufacturer. Some materials may need to be stored in protected enclosures, and handled by methods which avoid exposure to moisture. Store materials off the ground, under cover, and in a dry location. Additional requirements for product delivery, storage and handling are in Section STRUCTURAL STEEL

3 HWY 99 & 196 TH STREET SW PART 2 PRODUCTS 2.1 STRUCTURAL STEEL MATERIALS A. Structural steel shapes, plates and bars shall conform to ASTM A36 (Fy = 36,000 PSI), except A992 ' W' shapes (Fy=50,000 PSI). B. Steel pipe columns shall conform to ASTM A53, Grade B. C. Steel tube columns shall conform to ASTM A500, Grade B. D. Anchor rods, bolts and nuts and machine bolts shall conform to ASTM A307, unless otherwise indicated. E. Welding rods shall conform to AWS A5.0, E70 series, low hydrogen type. F. Expansion bolts shall be Hilti anchors with a 360 deg expansion steel wedging action, unless noted otherwise. G. Sections shall be of dimensions, weight and design as indicated, assembled complete at the shop, with base plates and other detailed materials attached. Furnish 1/4" thick leveling plates at all columns where base plates are shop fabricated to columns. H. All material must be new, of uniform quality, suitable and without defects affecting the strength of service of the structure. I. W-Shapes: ASTM A 992/A 992M, ASTM A572/A572M, Grade 50. J. Channels, Angles, M, S-Shapes: ASTM A36/A36M, [ASTM A 572/A 572M, Grade PRIMER A. All metals shall be shop primed per SATM standards unless indicated otherwise. B. Metal primer shall conform to FS TT-P GROUT A. Nonmetallic, Shrinkage-Resistant Grout: ASTM C1107, factory-packaged, nonmetallic aggregate grout, noncorrosive, nonstaining, mixed with water to consistency suitable for application and a 30-minute working time. 2.4 FABRICATION A. All workmanship, details of construction, etc., except as otherwise indicated or specified, shall conform with AISC "Specifications for Design, Fabrication and Erection of Structural Steel for Buildings", AISC "Code of Standard Practice", and applicable building codes. B. Shop fabricate and assemble steel to the greatest extent possible prior to delivery to site. C. Make connections as indicated or detailed, on the Drawings, and the approved shop and erection drawings. D. Mark materials for field assembly. Arrange fabrication order for most efficient delivery sequence for field assembly. E. All exposed steel shall have smooth, clean surfaces with no identifying trademarks, names, etc., exposed to view. 1. Leave in condition for finish painting. F. Machine bolts shall have proper length shanks with no bearing on threaded portions. G. Erect all work to the proper lines and levels, plumb and true, and in correct relation to other work. 1. Secure all parts in a rigid and substantial manner during construction. H. Bolted connections shall be as detailed or shall conform to AISC standard bolted connections with maximum number of 3/4" diameter bolts. 1. See Framed Beam Connections Table I, II, III, or IV of AISC Manual of Steel Construction. I. No slotted holes permitted at steel connections unless approved by Architect. J. Where bolt holes in steel members are enlarged to more than 1/16" diameter oversize, provide 3/16" x 2-1/2" x 2-1/2" plate washers with proper diameter hole. STRUCTURAL STEEL

4 HWY 99 & 196 TH STREET SW 1. Weld plate washers to steel members with 1/8" fillet weld all around. K. Structural Steel: Fabricate according to AISC's "Code of Standard Practice for Steel Buildings and Bridges" and AISC's "Specification for Structural Steel Buildings--Allowable Stress Design and Plastic Design, or Load and Resistance Factor Design Specification for Structural Steel Buildings", as required. L. Shear Connectors: Prepare steel surfaces as recommended by manufacturer of shear connectors. Use automatic end welding of headed-stud shear connectors according to AWS D1.1 and manufacturer's written instructions. 2.5 WELDING A. Make welds by the electric-arc process. B. Welders shall be duly qualified [test passed in the preceding twelve (12) months] for the position in which they are to weld. Qualifications and specifications for workmanship shall comply with the AWS requirements "AWS Structural Welding Code-Steel". C. Grind all exposed welds smooth. D. Where weld size is not indicated, it shall develop full strength of member and connection. 2.6 PAINTING - SHOP COAT A. Items of steel and ironwork indicated or specified to be encased in concrete or receive spray fireproofing shall not be painted. B. Clean all steel work by wire brushing, or by other means selected by the fabricator, of loose mill scale, loose rust, accessible weld slag or, flux deposit, dirt and other foreign matter. 1. Remove oil and grease deposits by solvent. C. After cleaning, give all steel work one coat of metal primer. 1. Apply primer thoroughly and evenly to dry surfaces, by brush, spray, roller coating, flow coating or dipping at the selection of the fabricator. 2. Apply primer at a rate of 350 SF per gallon to provide a wet film of 4.5 mils. D. Paint erection marks on painted surfaces. E. Touch-up all surfaces where welding, grinding of welds, joints, etc., are done in the field. F. Paint shall be thoroughly dry before the members are handled or loaded. 2.7 SOURCE QUALITY CONTROL A. Comply with testing and inspection requirements of Part 3, Article "Field Quality Control." B. Correct deficiencies in Work that test reports and inspections indicate does not comply with the Contract Documents. C. In addition to visual inspection, shop-welded shear connectors will be tested and inspected according to requirements in AWS D1.1 for stud welding. PART 3 EXECUTION 3.1 INSPECTION A. Verify all anchor bolt locations, grouting and elevation of base and setting plates and other material set by other trades, etc., before commencing work. B. Notify the Architect of any work set by others if out of tolerances specified, and do not erect any material upon such work until it has been corrected satisfactorily. C. Starting work implies acceptance of the work of other trades affecting erection of the structural frame. D. Final results are the entire responsibility of the Contractor. STRUCTURAL STEEL

5 HWY 99 & 196 TH STREET SW 3.2 ERECTION A. Erect material plumb and level and maintain this condition to completion. B. Connect members temporarily and align completely before making permanent connections. C. Temporary conditions shall consist of bolts in no less than one-third of the holes and in no case less than 3 bolts in any single connection. D. Surfaces in contact shall be thoroughly clean when assembled. E. Provide necessary temporary bracing and guying to align the structure properly for permanent connections, and safely resist all erection, dead load and wind stress. F. Take particular care to have the work plumb and level (maximum tolerance 1 to 500 for interior members, 1 to 1000 for exterior members) before making permanent connections. 1. Remove bracing and guys only after permanent alignment, and assembly and structure is capable of completely sustaining design and temporary construction loads. G. Examination: Verify elevations of concrete- and masonry-bearing surfaces and locations of anchor rods, bearing plates, and other embedments, with steel erector present, for compliance with requirements. 1. Proceed with installation only after unsatisfactory conditions have been corrected. H. Set structural steel accurately in locations and to elevations indicated and according to AISC's "Code of Standard Practice for Steel Buildings and Bridges", and "Specification for Structural Steel Buildings-- Allowable Stress Design and Plastic Design, and Load and Resistance Factor Design Specification for Structural Steel Buildings" as applicable. I. Base and Bearing Plates: Clean concrete and masonry-bearing surfaces of bond-reducing materials, and roughen surfaces prior to setting base and bearing plates. Clean bottom surface of base and bearing plates. 1. Set base and bearing plates for structural members on wedges, shims, or setting nuts as required. 2. Weld plate washers to top of base plate. 3. Snug-tighten anchor rods 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 before packing with grout. 4. Promptly pack grout solidly between bearing surfaces and base or bearing plates so no voids remain. Neatly finish exposed surface. Protect grout and allow it to cure. Comply with manufacturer's written installation instructions for shrinkage-resistant grouts. J. Maintain erection tolerances of structural steel within AISC's "Code of Standard Practice for Steel Buildings and Bridges." 3.3 CONNECTIONS A. Machine Bolting: 1. Fair-up holes with pins to align holes before bolting. 2. Ream unfair holes to obtain alignment or drill new holes. 3. Enlargement of holes with drift pins or burning of new holes is not permitted. 4. Draw bolts up tight after members are aligned and leveled, and set or deform threads to prevent loosening. B. Welding: 1. Weld by shielded arc method per AWS standard code for arc and gas welding in building construction. 2. Submit certification that welders have passed AWS code qualification tests. 3. Certification must be dated no earlier than three (3) months prior to beginning of project. 4. Refer to shop drawings for weld size and dimensions. 5. Close all joints exposed to weathering with continuous 1/8" weather welds. 6. Grind smooth all exposed welds, but grinding shall not reduce weld strength or required cross section. 7. Protect all finish material from damage due to welding. 8. Remove unsatisfactory welds by chipping or arc air method. STRUCTURAL STEEL

6 HWY 99 & 196 TH STREET SW C. Field Painting: 1. Spot paint all abrasions, field bolts and field welds with same paint used for shop coat. 2. Remove all temporary guys, bracing and bracing clips and grind flush all burrs remaining, before painting. 3. Remove all welding slag, spatter, rust and burnt paint and wire brush clean all welds before touchup. D. High-Strength Bolts: Install high-strength bolts according to RCSC's "Specification for Structural Joints Using ASTM A325 or A490 Bolts" for type of bolt and type of joint specified. E. Weld Connections: Comply with AWS D1.1 for welding procedure specifications, tolerances, appearance, and quality of welds and for methods used in correcting welding work. 1. Comply with AISC's "Code of Standard Practice for Steel Buildings and Bridges" and "Specification for Structural Steel Buildings - Allowable Stress Design and Plastic Design, or Load and Resistance Factor Design Specification for Structural Steel Buildings" as required for bearing, adequacy of temporary connections, alignment, and removal of paint on surfaces adjacent to field welds. 3.4 FIELD QUALITY CONTROL A. Testing Agency: Owner will engage a qualified independent testing and inspecting agency to inspect field welds and high-strength bolted connections. B. Contractor is responsible for quality control of all materials and workmanship including the workmanship and materials furnished by subcontractors and suppliers. C. Ensure alignments and elevations are correct prior to welding or permanently fastening components together. D. Bolted Connections: Bolted connections will be tested and inspected according to RCSC's "Specification for Structural Joints Using ASTM A325 or A490 Bolts." E. Welded Connections: Field welds will be visually inspected according to AWS D In addition to visual inspection, field welds will be tested according to AWS D1.1 and the following inspection procedures, at testing agency's option: a. Liquid Penetrant Inspection: ASTM E165. b. Magnetic Particle Inspection: ASTM E709; performed on root pass and on finished weld. Cracks or zones of incomplete fusion or penetration will not be accepted. c. Ultrasonic Inspection: ASTM E164. d. Radiographic Inspection: ASTM E94. F. Remove temporary shoring, bracing, and guy lines. G. Correct deficiencies in Work that test reports and inspections indicate do not comply with the Contract Documents. END OF SECTION STRUCTURAL STEEL

7 SECTION STEEL JOISTS PART 1 GENERAL 1.1 SUMMARY A. This Section specifies the construction of all structural steel joists, joist girders, joist accessories and painting. B. Contractor shall provide all labor, materials, equipment, and services necessary to design, fabricate, deliver, and install all structural metal framing work, as indicated on the Drawings, in accordance with local codes and standards, or as specified herein. This work shall include but not be limited to fabricating, delivering, and erecting structural metal framing, cutting, fitting, welding, cleaning, painting, providing temporary supports, and removing all temporary steel elements necessary for erection of structural metal. C. Coordinate delivery with other work to avoid delay. All work shall be coordinated with other sections. 1.2 SUBMITTALS A. Submittals shall be provided in accordance with Sections 01330, and B. Product Data: For each type of joist, accessory, and product indicated. C. Shop Drawings: Showing layout, mark, number, type, location, and spacings of joists. Include joining and anchorage details, bracing, bridging, accessories; splice and connection locations and details; and attachments to other construction. 1. Base drawings on Construction Documents, and details. 2. Shop drawings shall clearly show layout of joists to include mark, type, size, spacing of joists and bridging, details at all field connections, and materials required. 3. Submit complete shop fabrication details and erection diagrams. Such shop details and erection diagrams shall give all pertinent information of construction methods proposed, together with all required dimensions for the proper fitting for the connection with other work and materials. 4. Fabrication shall not commence until approval is received from Structural Engineer and Architect. D. Material certificates for each type of product indicated. Include statements of material properties indicating compliance with requirements, standards, and type designations within standards. Include material test reports, substantiating compliance with requirements. E. Welding certificates. F. Mill test reports. G. Qualification Data. H. Source quality control test reports. 1.3 QUALITY ASSURANCE A. Manufacturer Qualifications: A firm experienced in manufacturing joists similar to those indicated for this Project and with a record of successful in-service performance. 1. Manufacturer must be a member of the Steel Joist Institute (SJI) and certified by SJI to manufacture joists complying with SJI standard specifications and load tables. B. Installer Qualifications: Experience in performing work of this section, specializing in installation of work similar to that required for this project, employing workers who are skilled in this area of work, and whose projects have a record of successful in-service performance. 1. Welding: Qualify personnel according to AWS D1.1, "Structural Welding Code-Steel," and AWS D1.3, "Structural Welding Code--Sheet Steel." Qualify procedures per SJI requirements. C. All open web steel joists and steel joist girders shall be of the type, size, and spacing as shown in the drawings and shall comply with the Steel Joist Institute (SJI) "Standard Specifications, Load Tables, and Weight Tables for Steel Joists and Joist Girders", latest edition. STEEL JOISTS

8 1.4 DELIVERY, STORAGE AND HANDLING A. Transport and handle all materials in such a manner as to prevent damage. Dumping on the ground is not permitted. B. Locate storage piles, stacks, or bins to avoid or protect material from heavy and unnecessary traffic. C. Furnish temporary protection for all exposed edges and corners. D. Deliver all packaged materials in original, unopened, undamaged containers, with identification labels intact, and bearing the name of the manufacturer and brand. E. Ordering: Comply with manufacturer s ordering instructions and lead time requirements to avoid construction delays. F. Store all steel materials off the ground, and protect materials from corrosion and deterioration. Store fasteners in a protected location. Clean and lubricate bolts and nuts that become dry or rusty before use. G. Protect materials from exposure to harmful weather conditions, and at temperature and humidity conditions recommended by manufacturer. Some materials may need to be stored in protected enclosures, and handled by methods which avoid exposure to moisture. Store materials off the ground, under cover, and in a dry location. Additional requirements for product delivery, storage and handling are in Section PART 2 PRODUCTS 2.1 MATERIALS A. Steel: Comply with SJI's "Specifications" for chord and web members. B. Carbon-Steel Bolts and Threaded Fasteners: ASTM A , Grade A, carbon-steel, hex-head bolts and threaded fasteners; carbon-steel nuts; and flat, unhardened steel washers; plain, uncoated. C. High-Strength Bolts and Nuts: ASTM A 325, Type 1, heavy hex steel structural bolts, heavy hex carbonsteel nuts, and hardened carbon-steel washers; plain, uncoated. 2.2 PRIMER A. All joists, joist girders and bridging members shall be cleaned of foreign matter and loose scale. After cleaning, these members shall receive one shop coat of gray primer which meets the minimum performance requirements of one of the following: 1. The Society for Protective Coatings (SSPC) 15-68T or, 2. Federal Specification TT-P STEEL JOISTS A. Manufacture steel joists according to SJI's "Specifications," with steel-angle top- and bottom-chord members. B. Comply with AWS requirements and procedures for shop welding, appearance, quality of welds, and methods used in correcting welding work. 2.4 JOIST GIRDERS A. Manufacture joist girders according to "Standard Specifications for Joist Girders," in SJI's "Specifications, "with steel-angle top- and bottom-chord members. B. Comply with AWS requirements and procedures for shop welding, appearance, quality of welds, and methods used in correcting welding work. STEEL JOISTS

9 2.5 JOIST ACCESSORIES A. Bridging: Provide bridging anchors and number of rows of horizontal or diagonal bridging of material, size, and type required by SJI's "Specifications" for type of joist, chord size, spacing, and span. B. Bridging: Schematically indicated. Detail and fabricate according to SJI's "Specifications." Bridging shall be located to avoid conflicting with skylights, exhaust fans, and roof top HVAC units. C. Supply miscellaneous accessories, including splice plates and bolts required by joist manufacturer to complete joist installation. 2.6 PAINTING - SHOP COAT A. Clean and remove loose scale, heavy rust, and other foreign materials from fabricated joists and accessories by hand-tool cleaning or power-tool cleaning per SJI requirements. B. Apply 1 shop coat of primer to joists and joist accessories to be primed to provide a continuous, dry paint film not less than 0.5 mil thick. C. Touch-Up Painting: After joist installation, field paint bolt heads and nuts and welded areas, abraded or rusty surfaces on joists and steel supporting members. Wire brush surfaces and clean with solvent before painting. Use same type paint as used for shop painting. PART 3 EXECUTION 3.1 INSTALLATION A. Pre-Erection Survey: Check vertical and horizontal dimensions of all points of support/tie-in, before erection work proceeds and report discrepancies to Owner. Do not proceed with erection until corrections have been made, or until compensating adjustments have been agreed upon with Owner. Also report any other conditions detrimental to proper/timely completion of work. B. Do not install joists until supporting construction is in place and secured. C. Install joists and accessories plumb, square, and true to line; securely fasten to supporting construction according to SJI's "Specifications," joist manufacturer's written recommendations, and requirements in this Section. D. Field weld joists to supporting steel bearing plates. Coordinate welding sequence and procedure with placement of joists. Comply with AWS requirements and procedures for welding, appearance and quality of welds, and methods used in correcting welding work. E. Bolt joists to supporting steel framework using carbon-steel bolts, unless otherwise indicated. F. Bolt joists to supporting steel framework using high-strength structural bolts, unless otherwise indicated. Comply with RCSC's "Allowable Stress Design Specification for Structural Joints Using ASTM A325 or ASTM A 490 Bolts" for high-strength structural bolt installation and tightening requirements. G. Install and connect bridging concurrently with joist erection, before construction loads are applied. Anchor ends of bridging lines at top and bottom chords if terminating at walls or beams. H. Inspection/Testing: Joists welded in place are subject to inspection/testing. Expense of removing/replacing any portion of steel joists for testing purposes will be born by Owner if welds are found to be satisfactory. Replace/remove work found to be defective and provide new acceptable work. END OF SECTION STEEL JOISTS

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11 SECTION STEEL DECK (Roof Deck) PART 1 GENERAL 1.1 SUMMARY A. This Section specifies the construction of all metal roof decking assemblies including fabrication of metal parts, fasteners, accessories, delivery, and installation. B. Contractor shall provide all labor, materials, equipment, and services necessary to design, fabricate, deliver, and install all metal roof deck units, as indicated on the Drawings, in accordance with local codes and standards, or as specified herein. This work shall include but not be limited to fabrication of the roof deck units and miscellaneous steel shapes, welding, fasteners, additional metal reinforcement and closure pieces, support of other work, cutting and fitting the deck units, accessories, cleaning, priming and painting. C. Some materials identified in the section are National Account items purchased by Owner, received, stored and installed by General Contractor. Refer to Section for National Account vendor contact information. D. All work shall be coordinated with other sections. Coordinate delivery with other work to avoid delay. 1.2 SUBMITTALS A. Submittals shall be provided in accordance with Sections 01330, and B. Product Data: For each type of deck, accessory, and product indicated. C. Shop Drawings: 1. Shop drawings shall clearly show layout and types of deck panels, anchorage details, reinforcing channels, pans, cut deck openings, special joints, accessories, and attachments to other construction. Also show designation, number, type, location and materials required. 2. Note diaphragm deck welding pattern on shop drawings. D. Samples for review in accordance with Sections and E. Material certificates for each type of product indicated. Include statements of material properties indicating compliance with requirements, standards, and type designations within standards. Include material test reports substantiating compliance with requirements. F. Fabrication shall not commence until approval is received from Owner/Architect. G. Product Certificates. H. Welding Certificates. I. Field quality control test and inspection reports. J. Research/Evaluation Reports: For steel deck. K. No Substitutions on National Account items. 1.3 QUALITY ASSURANCE A. Steel deck shall be fabricated in accordance with the requirements of Steel Deck Institute (SDI) Specification, the drawings, and as specified herein. B. Panel configurations and method of forming shall be in accordance with SDI Specifications for type and gauge as indicated on the drawings. C. Installer Qualifications: Experience in performing work of this section, specializing in installation of work similar to that required for this project, employing workers who are skilled in this area of work, and whose projects have a record of successful in-service performance. 1. Welding: Qualify procedures and personnel according to AWS D1.3, "Structural Welding Code - Sheet Steel." D. Manufacturers shall meet the industry standards and codes for the materials identified on the Drawings and in the Specifications herein. STEEL DECK (Roof Deck)

12 1. Sections and properties of metal shall conform to minimum Specifications for the design of "Light Gauge Cold Formed Steel Structural Members" as published by AISI. E. Certification: Product certificates signed by manufacturer, certifying materials comply with specified performance characteristics, criteria, and physical requirements. 1. Fire-Test-Response Characteristics: Where indicated, provide steel deck units identical to those tested for fire resistance per ASTM E119 by a testing and inspecting agency acceptable to authorities having jurisdiction. 2. Fire-Resistance Ratings: Indicated by design designations of applicable testing and inspecting agency. 3. Steel deck units shall be identified with appropriate markings of applicable testing and inspecting agency. 4. AISI Specifications: Comply with calculated structural characteristics of steel deck according to AISI's "North American Specification for the Design of Cold-Formed Steel Structural Members." F. Manufacturer s instructions for installation shall be delivered and stored with the materials. G. Testing: As required by industry codes and standards. H. Tolerances shall conform to applicable codes and standards, except as otherwise noted. I. Warranty: 1. Manufacturer s Warranty: Submit, for Owner s acceptance, manufacturer s standard warranty document executed by authorized company official. Manufacturer s warranty is in addition to, and not a limitation of, other rights Owner may have under Contract Documents. 2. Warranty Period: Two (2) years commencing on Date of Certificate of Occupancy. 3. Additional requirements for product warranties are included in Section DELIVERY, STORAGE AND HANDLING A. Deliver, store, and handle metal decking and all other materials in such a manner that it will not be damaged, deformed, or corroded. B. Steel deck shall be handled with utmost care to minimize scratching and deformation. Deck units sustaining irreparable deformation/damage shall be replaced at the discretion of the Owner/Architect. C. Exercise special care so as not to damage or overload the decking during the entire construction period. D. Do not use metal decking for storage or as a working platform until the sheets have been welded in position. E. Locate materials away from heavy and unnecessary traffic. F. Furnish temporary protection for all exposed corners and edges. G. Deliver all packaged materials in original, unopened, undamaged containers, with identification labels intact, and bearing the name of the manufacturer and brand. H. Ordering: Comply with manufacturer s ordering instructions and lead time requirements to avoid construction delays. I. If site storage is required, the bundles of deck shall be stored off the ground with one end elevated to provide drainage, and should be protected against condensation with a ventilated waterproof covering. J. Stack decking stored at the site before erection on platforms or pallets, and protect materials from exposure to harmful weather conditions, and at temperature and humidity conditions recommended by manufacturer. K. Some materials may need to be stored in protected enclosures, and handled by methods which avoid exposure to moisture. L. Additional requirements for product delivery, storage and handling are in Section PART 2 PRODUCTS 2.1 MANUFACTURERS STEEL DECK (Roof Deck)

13 A. Contractor shall provide products per the National Account vendor. Refer to Section for vendor contact information. 2.2 FABRICATION A. General: Fabricate panels to comply with SDI specifications, and as indicated on the drawings. B. Form deck units in lengths to span 3 or more support spacings, with flush, telescoped or nested 3" end laps and interlocking side laps, unless otherwise shown or specified. 2.3 STEEL A. Steel for Painted Deck: ASTM A611, Grade C. 1. Depth: As indicated on Structural Drawings. 2. Gauge: As indicated on Structural Drawings. 3. Width: As indicated on Structural Drawings. 4. Values (minimum): a. S per 1'-0" of width - As indicated on Structural Drawings. b. I per 1'-0" of width - As indicated on Structural Drawings. c. Minimum diaphram shear - As indicated on Structural Drawings. B. Miscellaneous Steel Shapes: ASTM A36, unless otherwise noted. PART 3 EXECUTION 3.1 INSTALLATION A. Install deck units and accessories in accordance with manufacturer's recommendations, SDI requirements, final shop drawings, and as specified herein. B. Install deck panels flat, square, and without any warp or deflection. C. Cut and fit deck panels and accessories around openings and other work projecting through or adjacent to decking. D. Provide additional reinforcement and closure pieces as required for strength, and support of other work. E. Comply with AWS requirements and procedures for quality, appearance, and methods for welding. 3.2 PLACING A. Do not start placement of deck units before all supporting members are installed. B. Place deck units on supporting steel framework and adjust to final position with ends bearing on supporting members and accurately aligned end to end before being permanently fastened. C. Lap ends not less than 2". D. Do not stretch or contract the side-lap interlocks. E. Do not place deck units on concrete supporting structure until concrete has cured properly and is dry. F. Coordinate and cooperate with structural steel erector in locating decking bundles to prevent overloading of structural members. G. Do not use deck units for storage or working platforms until permanently secured in position. 3.3 FASTENING A. Permanently fasten deck units to steel supporting members by welds at end laps and at intermediate supports as indicated. B. Comply with AWS requirements and procedures for manual shielded metal-arc welding, the appearance and quality of welds, and the methods used in correcting welding work. STEEL DECK (Roof Deck)

14 C. Lock side laps between adjacent deck units at intervals not exceeding 12" O.C. by welding, screws, button punching, or as shown on structural documents. 3.4 CUTTING AND FITTING A. Cut and fit deck units and accessories around other work projecting through or adjacent to the decking. Provide neat, square, and trim cuts. 3.5 REINFORCEMENT AT OPENINGS A. Provide additional metal reinforcement and closure pieces as required for strength, continuity of decking and support of other work, unless otherwise shown. 3.6 TOUCH-UP PAINTING A. After decking installation, wire brush, clean and paint scarred areas, welds, and rust spots on the top and bottom surfaces of decking units and supporting steel members. B. Touch-up galvanized surfaces with galvanized repair paint applied in accordance with the manufacturer's instructions. C. In areas where touch-up painted surfaces are to be exposed, apply the paint to blend into the adjacent surfaces in a manner that will minimize visual discontinuity in the coatings. 3.7 FIELD QUALITY CONTROL A. Testing Agency: Owner will engage a qualified independent testing and inspecting agency to perform field tests and inspections and prepare test reports. B. Field welds will be subject to inspection. C. Testing agency will report inspection results promptly and in writing to Contractor and Architect. D. Remove and replace work that does not comply with specified requirements. E. Additional inspecting, at Contractor's expense, will be performed to determine compliance of corrected work with specified requirements. 3.8 REPAIRS A. Galvanizing Repairs: Prepare and repair damaged galvanized coatings on both surfaces of deck with galvanized repair paint according to ASTM A780 and manufacturer's written instructions. B. Repair Painting: Wire brush and clean rust spots, welds, and abraded areas on all surfaces of primepainted deck immediately after installation, and apply repair paint. END OF SECTION STEEL DECK (Roof Deck)

15 SECTION HEAVY GAUGE FRAMING PART 1 GENERAL 1.1 SUMMARY A. This Section specifies the construction of all heavy gauge (structural steel stud) framing assemblies including studs, braces, channels, sills, headers, load bearing wall framing, roof framing, miscellaneous metal parts, primer, paint, and tests. B. Contractor shall provide all labor, materials, equipment, and services necessary to design, fabricate, deliver, and install all heavy gauge framing assembly work, as indicated on the Drawings, in accordance with local codes and standards, or as specified herein. This work shall include but not be limited to design and fabrication of structural steel studs and associated metal shapes, welding, reinforcement, support of other work, cutting, fitting, testing, cleaning and painting. C. Coordinate delivery with other work to avoid delay. All work shall be coordinated with other sections. 1.2 SUBMITTALS A. Submittals shall be provided in accordance with Sections and B. Product Data: For each type of structural steel material, accessory, and product indicated. C. Shop Drawings: 1. Shop drawings shall clearly show layout and types of structural steel shapes, designation, fabrication, quantity, spacings, sizes, thicknesses, type, location, and materials required. 2. Fastening and anchorage details, including mechanical fasteners. D. Samples for review in accordance with Sections and E. Material certificates for each type of product indicated. Include statements of material properties indicating compliance with requirements, standards, and type designations within standards. Include material test reports substantiating compliance with requirements. F. Mill and product test reports (or data from a qualified independent testing agency indicating steel sheet complies with requirements.) G. Welding Certificates. H. Qualification Data. I. Field quality control test and inspection reports. J. Research/evaluation reports. K. Substitutions shall be requested in accordance with Sections and QUALITY ASSURANCE A. Installer Qualifications: Experience in performing work of this section, specializing in installation of work similar to that required for this project, employing workers who are skilled in this area of work, and whose projects have a record of successful in-service performance. B. Manufacturers shall meet the industry standards and codes for the materials identified on the Drawings and in the Specifications herein. C. Certification: Product certificates signed by manufacturer, certifying materials comply with specified performance characteristics, criteria, and physical requirements. 1. For cold-formed metal framing indicated to comply with design loads, include structural analysis data signed and sealed by the qualified professional engineer responsible for their preparation. 2. Comply with AISI's "Standard for Cold-Formed Steel Framing - Truss Design." 3. Comply with AISI's "Standard for Cold-Formed Steel Framing - Header Design." 4. Welding: Qualify procedures and personnel according to AWS D1.3, "Structural Welding Code - Sheet Steel." D. Structural Performance: Provide cold-formed metal framing capable of withstanding design loads within deflection limits and under conditions indicated. HEAVY GAUGE FRAMING

16 E. Manufacturer s instructions for installation shall be delivered and stored with the materials. F. Testing: As required by the latest industry codes and standards. G. Tolerances shall conform to industry codes and standards, except as otherwise noted. H. Warranty: 1. Manufacturer s Warranty: Submit, for Owner s acceptance, manufacturer s standard warranty document executed by authorized company official. Manufacturer s warranty is in addition to, and not a limitation of, other rights Owner may have under Contract Documents. 2. Warranty Period: Two (2) years commencing on Date of Certificate of Occupancy. 3. Additional requirements for product warranties are included in Section I. Fire-Test-Response Characteristics: Where indicated, provide cold-formed metal framing identical to that of assemblies tested for fire resistance per ASTM E119 by a testing and inspecting agency acceptable to authorities having jurisdiction. J. AISI Specifications and Standards: Comply with AISI's "North American Specification for the Design of Cold-Formed Steel Structural Members" and its "Standard for Cold-Formed Steel Framing - General Provisions." 1. Comply with AISI's "Standard for Cold-Formed Steel Framing - Truss Design." 2. Comply with AISI's "Standard for Cold-Formed Steel Framing - Header Design." 1.4 DELIVERY, STORAGE AND HANDLING A. Transport and handle all materials in such a manner as to prevent damage. B. Locate materials away from heavy and unnecessary traffic. C. Furnish temporary protection for all exposed corners and edges. D. Deliver all packaged materials in original, unopened, undamaged containers, with identification labels intact, and bearing the name of the manufacturer and brand. E. Ordering: Comply with manufacturer s ordering instructions and lead time requirements to avoid construction delays. F. Store and protect materials from exposure to harmful weather conditions, and at temperature and humidity conditions recommended by manufacturer. Some materials may need to be stored in protected enclosures, and handled by methods which avoid exposure to moisture. Store mortar, grout, and other moisture-sensitive materials off the ground, under cover, and in a dry location. Additional requirements for product delivery, storage and handling are in Section PART 2 PRODUCTS 2.1 MANUFACTURERS A. Subject to compliance with requirements, manufacturer offering products that may be incorporated into the work include the following: 1. Dietrich Industries, Inc. 2. Unimast, Inc. 3. Clark Steel Framing Systems 4. Approved equal. 2.2 MATERIALS A. Steel sheet shall be fabricated as required by ASTM A1003, Steel Sheet for Cold Formed Framing Members. B. Fabricate steel framing accessories from steel sheet, ASTM A1003, structural grade, Type H, metallic coated, of same grade and coating weight used for framing members, unless otherwise indicated. C. Steel shapes and clips: ASTM A36, zinc coated by hot dip process according to ASTM A123. D. Structural steel studs shall be sizes as indicated on the Drawings and as Specified herein. HEAVY GAUGE FRAMING

17 E. Manufacturer s standard C-shaped studs of web depths indicated, punched with stiffened flanges and as follows: 1. Steel for load bearing steel studs, runners, and bracing or bridging shall conform to ASTM C Steel for non structural steel framing studs shall conform to ASTM C Studs shall be type as indicated on the drawings, and as manufactured by Metal Stud Manufacturer s Association. F. Steel track: Manufacturer s standard U-shaped steel track, of web depth indicated. G. All structural stud components shall have a shop coat of rust resisting paint conforming to FS TT-P-636. H. Anchor bolts: ASTM F1554, Grade 36 threaded carbon steel hex head bolts with carbon steel nuts and flat hardened washers, zinc coated by hot dip process according to ASTM A153. I. Expansion anchors fabricated from corrosion resistant material capable of handling a load five (5) times design load, per ASTM E488. J. Mechanical fasteners: ASTM C1513, corrosion resistant coated. K. Braces shall be 16 gauge with minimum flange width of 1-5/16". L. Provide jack studs or channels between bottom track and sill openings: 1. Between opening and door lintel or headers and top track; 2. Elsewhere as required to provide adequate support for collateral wall materials. M. Provide sills and headers as required for all exterior wall openings. 2.3 FABRICATION A. Saw cut all structural stud components squarely, or on an angle as in bracing, to fit squarely against abutting members. 1. Hold members firmly in position until properly fastened. B. Attach similar components by welding. C. Attach dissimilar stud components by welding, screw attachment, or bolting. D. Wire tying will not be permitted. PART 3 EXECUTION 3.1 INSTALLATION - GENERAL A. Install cold formed metal framing according to AISI s Standard for Cold-Formed Steel Framing-General Provisions, and manufacturer s written instructions, unless more stringent requirements are indicated on the drawings or the specifications herein. B. Install cold-formed metal framing and accessories plumb, square, and true to line, and with connections securely fastened. 1. Set studs plumb, except as needed for diagonal bracing or required for non plumb walls or warped surfaces and similar configurations. 2. Where studs cannot be aligned, continuously reinforce track to transfer loads. 3. Anchor studs abutting structural columns or walls, including masonry walls, to supporting structure as indicated. C. Install framing members in one-piece lengths. D. Install temporary bracing and supports to secure framing and support loads comparable in intensity to those for which structure was designed. Maintain braces and supports in place, undisturbed, until entire integrated supporting structure has been completed and permanent connections to framing are secure. E. Do not bridge building expansion and control joints with cold-formed metal framing. Independently frame both sides of joints. F. Securely anchor track to floor with 1/2" diameter bolts, at 48" o.c. maximum, or with 1/8" power driven inserts at 8" o.c. maximum with minimum 2 bolts or inserts per any track sections; provide top track. HEAVY GAUGE FRAMING

18 G. Seat studs squarely in the track with the stud web and flanges abutting the track web, plumb or align, and securely attach to the flanges or web of both the upper and lower tracks by welding flanges to track; or by 4 sheet metal screws, bolts or rivets, 2 at top and 2 at bottom. H. Space studs on centers indicated but in no instance any further than 16" o.c. I. Triple up studs with 2 studs full height at all jambs. J. Use butt welds or splices at all but joints in track. K. Splices in studs will not be permitted. L. All welds shall be fillet, plug, butt or seam. M. Provide cold rolled steel channel bridging minimum 1-1/2" deep with 9/16" flange 48" o.c. vertically, welded at each stud. N. Secure headers or lintels by welding, bolts, or rivets as required. O. Furnish and install 1/8" x 3" steel strap bracing as indicated on the Drawings. 3.2 PAINT A. Touch-up field abrasions and welds in the field after erection using the same materials as shop coat paint. 3.3 PREPARATION A. Install load bearing shims or grout between the underside of wall bottom track or rim track and the top of foundation wall or slab at stud or joist locations to ensure a uniform bearing surface on supporting concrete or masonry construction. B. Install sealer gaskets to isolate the underside of wall bottom track or rim track and the top of foundation wall or slab at stud or joist locations. 3.4 INSTALLATION A. Install insulation, specified in Division 7 Section "Miscellaneous Building Insulation," in built-up exterior framing members, such as headers, sills, boxed joists, and multiple studs at openings, that are inaccessible on completion of framing work. B. Fasten hole reinforcing plate over web penetrations that exceed size of manufacturer's standard punched openings. C. Erection Tolerances: Install cold-formed metal framing level, plumb, and true to line to a maximum allowable tolerance variation of 1/8" in 10'-0" and as follows: 1. Space individual framing members no more than plus or minus 1/8" from plan location. Cumulative error shall not exceed minimum fastening requirements of sheathing or other finishing materials. 3.5 FIELD QUALITY CONTROL A. Testing: Owner will engage a qualified independent testing and inspecting agency to perform field tests and inspections and prepare test reports. B. Field and shop welds will be subject to testing and inspecting. C. Testing agency will report test results promptly and in writing to Contractor and Architect. D. Remove and replace work where test results indicate that it does not comply with specified requirements. E. Additional testing and inspecting, at Contractor's expense, will be performed to determine compliance of replaced or additional work with specified requirements. 3.6 REPAIRS AND PROTECTION A. Galvanizing Repairs: Prepare and repair damaged galvanized coatings on fabricated and installed coldformed metal framing with galvanized repair paint according to ASTM A780 and manufacturer's written instructions. HEAVY GAUGE FRAMING