DESIGN A/E NOTE - GUIDE SPECIFICATION CONVENTIONS
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Rev 19JUN09 j:\Projects\Active\com-deca_design_criteria_revisions-04071\Guide Specifications\TJG Innformation
SECTION 13125
METAL BUILDING SYSTEMS
This Section specifies certain requirements and procedures pertaining to sustainable resources and construction practices that are to be performed by the Contractor.
This Section does not specify requirements for planning and design which are addressed in the DeCA Design Criteria Handbook Division 1 Section 01115, DeCA Sustainable Design Requirements, that are the responsibility of the A/E.
PART 1 - GENERAL
1.1 SUMMARY
1.1.1. Section Includes
1.1.1.1. Metal building systems that consist of integrated sets of mutually dependent components including structural framing,roof panels,wall panels and accessories.
1.1.2. Related Sections
a. Division1 Section " DeCA Sustainable Design Requirements " for recycled content of steel products.
b. Division3 Section "Cast-in-Place Concrete" for concrete foundations, slabs, and anchor-bolt installation.
1.2 SYSTEM PERFORMANCE REQUIREMENTS
1.2.1. Structural Performance
a. Provide metal building systems capable of withstanding the effects of gravity loads and the following loads and stresses within limits and under conditions indicated:
(1) Engineer metal building systems according to procedures in MBMA's "Metal Building Systems Manual."
(2) Design Loads: As required by ASCE7, "Minimum Design Loads for Buildings and Other Structures" and applicable building codes.
b. Seismic Performance: Design and engineer metal building systems capable of withstanding the effects of earthquake motions determined according to ASCE7, "Minimum Design Loads for Buildings and Other Structures": Section9, "Earthquake Loads" and applicable building codes.
c. Thermal Movements: Provide metal panel systems that allow for thermal movements resulting from the following maximum change (range) in ambient and surface temperatures by preventing buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base engineering calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.
d. Thermal Performance: Provide insulated metal panel assemblies with the following maximum U-factors and minimum R-values for opaque elements when tested according to ASTMC1363 or ASTMC518:
(1) Metal Roof Panel Assemblies: Minimum R-Value of 21.
(2) Metal Wall Panel Assemblies: Minimum R-Value of 10.
e. Wind-Uplift Resistance: Provide metal roof panel assemblies that comply with UL580 for Class 90.
1.3 SUBMITTALS
1.3.1. Product Data
a. For each type of metal building system component indicated.
1.3.2. Shop Drawings
a. Include plans, elevations, sections, details, and attachments to other work.
(1) For installed products indicated to comply with design loads, include structural analysis data signed and sealed by the qualified professional engineer responsible for their preparation.
(2) Anchor-Bolt Plans: Submit anchor-bolt plans before foundation work begins. Include location, diameter, and projection of anchor bolts required to attach metal building to foundation. Indicate column reactions at each location.
(3) Structural-Framing Drawings: Show complete fabrication of primary and secondary framing; include provisions for openings. Indicate welds and bolted connections, distinguishing between shop and field applications. Include transverse cross-sections.
(4) Metal Roof and Wall Panel Layout Drawings: Show layouts of metal panels including methods of support. Include details of edge conditions, joints, panel profiles, corners, anchorages, trim, flashings, closures, and special details. Distinguish between factory- and field-assembled work; show locations of exposed fasteners.
1.3.3. Samples for Verification
a. For each type of building component and for each color and texture required.
1.3.4. Letter of Design Certification
(1) Signed and sealed by a qualified professional engineer. Include the following:
(a) Name and location of Project.
(b) Order number.
(c) Name of manufacturer.
(d) Name of Contractor.
(e) Building dimensions including width, length, height, and roof slope.
(f) Indicate compliance with AISC standards for hot-rolled steel and AISI standards for cold-rolled steel, including edition dates of each standard.
(g) Governing building code and year of edition.
(h) Design loads and load combinations.
(i) Building-use category.
(j) AISC Certification for CategoryMB: Include statement that metal building system and components were designed and produced in an AISC-Certified Facility by an AISC-Certified Manufacturer.
1.3.5. Welding certificates.
1.3.6. Erector Certificate
a. Signed by manufacturer certifying that erector complies with requirements.
1.3.7. Manufacturer certificate.
1.3.8. Surveys
a. Show final elevations and locations of major members. Have surveyor who performed surveys certify their accuracy.
1.3.9. Special Inspection reports
a. On shop and field bolted connections, and welded connections.
1.3.10. Sustainable Design Submittals:
a. Product Data
(1) For products having recycled content, documentation indicating percentages by weight of post-consumer and pre-consumer recycled content. (Credit MR4.1) Include statement indicating costs for each product having recycled content.
1.3.11. Submittal List
Reference Submittal Item Quantity Action
1.3.1 Product Data X R
1.3.2 Shop Drawings X R
1.3.3 Samples for Verification X R
1.3.4 Letter of Design Certification X I
1.3.5 Welding certificates X R
1.3.6 Samples for Verification X R
1.3.7 Manufacturer certificate X I
1.3.8 Surveys X I
1.3.9 Special Inspection Reports X R
1.3.10 Sustainable Design Submittals X I
X Submit quantity specified in Division 1 Section “Administrative Requirements.”
R Review each submittal, mark to indicate action taken, and return.
I Submittal is for information or record purposes only. No action will be taken.
1.4 QUALITY ASSURANCE
1.4.1. Erector Qualifications: An experienced erector who has specialized in erecting and installing work similar in material, design, and extent to that indicated for this Project and who is acceptable to manufacturer.
1.4.2. Manufacturer Qualifications
a. A qualified manufacturerand member of MBMA.
b. AISC Certification for CategoryMB: An AISC-Certified Manufacturer that designs and produces metal building systems and components in an AISC-Certified Facility.
c. Engineering Responsibility: Preparation of Shop Drawings and comprehensive engineering analysis by a qualified professional engineer.
1.4.3. Welding
a. Qualify procedures and personnel according to AWSD1.1, "Structural Welding Code--Steel," and AWSD1.3, "Structural Welding Code--Sheet Steel."
1.4.4. Structural Steel
a. Comply with AISC's "Specification for Structural Steel Buildings--Allowable Stress Design, Plastic Design," or AISC's "Load and Resistance Factor Design Specification for Structural Steel Buildings," for design requirements and allowable stresses.
1.4.5. Cold-Formed Steel
a. Comply with AISI's "Specification for the Design of Cold-Formed Steel Structural Members," or AISI's "Load and Resistance Factor Design Specification for Steel Structural Members," for design requirements and allowable stresses.
1.4.6. Professional Engineer Qualifications
a. A professional engineer who is legally authorized to practice in the jurisdiction where Project is located and who is experienced in providing engineering services of the kind indicated. Engineering services are defined as those performed for projects with structural steel framing that are similar to that indicated for this Project in material, design, and extent.
1.4.7. Special Inspector Qualifications
a. Special Inspections for bolted and welded connections, and steel details shall be performed under the direct supervision of a Professional Engineer registered in the State in which the project is located. The personnel performing the inspections shall be ICC-certified Structural Steel and Welding Special Inspection or an equivalent certification program.
1.5 DELIVERY, STORAGE, AND HANDLING
Stack metal panels horizontally on platforms or pallets, covered with suitable weathertight and ventilated covering. Store metal panels to ensure dryness and with positive slope for drainage of water. Do not store metal panels in contact with other materials that might cause staining, denting, or other surface damage.
1.6 PROJECT CONDITIONS
Established Dimensions for Foundations: Comply with established dimensions on approved anchor-bolt plans, establishing foundation dimensions and proceeding with fabricating structural framing without field measurements. Coordinate anchor-bolt installation to ensure that actual anchorage dimensions correspond to established dimensions.
1.7 COORDINATION
Coordinate size and location of concrete foundations and casting of anchor-bolt inserts into foundation walls and footings. Concrete, reinforcement, and formwork requirements are specified in Division3 Section "Cast-in-Place Concrete."
1.8 WARRANTY
1.8.1. Special Warranty on Metal Panel Finishes
a. Manufacturer's standard form in which manufacturer agrees to repair finish or replace metal panels that show evidence of deterioration of factory-applied finishes within specified warranty period.
(1) Fluoropolymer Finish and Front Wall Panel Finish: Deterioration includes, but is not limited to, the following:
(a) Color fading more than 5Hunter units when tested according to ASTMD2244.
(b) Chalking in excess of a No.8 rating when tested according to ASTMD4214.
(c) Cracking, checking, peeling, or failure of paint to adhere to bare metal.
(d) Finish Warranty Period: 20 years from date of Substantial Completion.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
2.2 BasisofDesign Products: To establish the significant qualities related to type, function, dimension, inservice performance, physical properties, appearance, and other characteristics for purposes of evaluating comparable products of other manufacturers, a specific manufacturer's product is named and accompanied by the words "basis of design," including make or model number or other designation. Subject to compliance with requirements, provide either the named products or equal products.
2.3 STRUCTURAL-FRAMING MATERIALS
2.3.1. W-Shapes
a. ASTMA992/A992M; ASTMA572/A572M, Grade50 or 55; or ASTMA529/A529M, Grade50 or 55.
2.3.2. Channels, Angles, M-Shapes, and S-Shapes
a. ASTMA36/A36M; ASTMA572/A572M, Grade50 or 55; or ASTMA529/A529M, Grade50 or 55.
2.3.3. Plate and Bar
a. ASTMA36/A36M; ASTMA572/A572M, Grade50 or 55; or ASTMA529/A529M, Grade50 or 55.
2.3.4. Steel Pipe
a. ASTMA53/A53M, TypeE or S, GradeB.
2.3.5. Cold-Formed Hollow Structural Sections
a. ASTMA500, GradeB or C, structural tubing.
2.3.6. Structural-Steel Sheet
a. Hot-rolled, ASTMA1011/A1011M, Structural Steel (SS), Grades 30 through 55, or High-Strength Low Alloy Steel (HSLAS), Grades 45 through 70; or cold-rolled, ASTMA1008/A1008M, Structural Steel (SS), Grades 25 through 80, or High-Strength Low Alloy Steel (HSLAS), Grades 45 through 70.
2.3.7. Metallic-Coated Steel Sheet
a. ASTMA653/A653M, Structural Steel (SS), Grades33 through 80 or High-Strength Low Alloy Steel (HSLAS), Grades 50 through 80; with G60 coating designation; mill phosphatized.
2.3.8. Metallic-Coated Steel Sheet Prepainted with Coil Coating
a. Steel sheet metallic coated by the hot-dip process and prepainted by the coil-coating process to comply with ASTMA755/A755M.
(1) Zinc-Coated (Galvanized) Steel Sheet: ASTMA653/A653M, Structural Steel (SS), Grades33 through 80 or High-Strength Low Alloy Steel (HSLAS), Grades 50 through 80; with G90 coating designation.
(2) Aluminum-Zinc Alloy-Coated Steel Sheet: ASTMA792/A792M, Structural Steel (SS), Grade50 or 80; with ClassAZ50 coating.
2.3.9. Non-High-Strength Bolts, Nuts, and Washers
a. ASTMA307, GradeA, carbon-steel, hex-head bolts; ASTMA563 carbon-steel hex nuts; and ASTMF844 plain (flat) steel washers.
(1) Finish: Plain.
2.3.10. High-Strength Bolts, Nuts, and Washers
a. ASTMA325, Type1, heavy hex steel structural bolts; ASTMA563 heavy hex carbon-steel nuts; and ASTMF436 hardened carbon-steel washers.
(1) Finish: Plain.
(2) Tension-Control, High-Strength Bolt-Nut-Washer Assemblies: ASTMF1852, Type1, heavy-hex-head steel structural bolts with splined ends.
(a) Finish: Plain.
2.3.11. High-Strength Bolts, Nuts, and Washers
a. ASTMA490, Type1, heavy hex steel structural boltsor tension-control, bolt-nut-washer assemblies with splined ends; ASTMA563 heavy hex carbon-steel nuts; and ASTMF436 hardened carbon-steel washers, plain.
2.3.12. Unheaded Anchor Rods
a. ASTMF1554, Grade36.
(1) Configuration: Straight.
(2) Nuts: ASTMA563 hex carbon steel.
(3) Plate Washers: ASTMA36/A36M carbon steel.
(4) Washers: ASTMF436 hardened carbon steel.
(5) Finish: Hot-dip zinc coating, ASTMA153/A153M, ClassC.
2.3.13. Headed Anchor Rods
a. ASTMF1554, Grade36, straight.
(1) Nuts: ASTMA563 hex carbon steel.
(2) Plate Washers: ASTMA36/A36M carbon steel.
(3) Washers: ASTMF436 hardened carbon steel.
(4) Finish: Hot-dip zinc coating, ASTMA153/A153M, ClassC.
2.3.14. Threaded Rods