Attachment 20 - 085653 Blast resistant Windows.pdf

CONSTRUCT SLEEP DISORDER CLINIC AND SPECIALTY CLINIC

TVHS MURFREESBORO CAMPUS

MURFREESBORO, TN

VA PROJECT NUMBER 626-310

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SECTION 08 56 53

BLAST RESISTANT WINDOWS

PART 1 - GENERAL

1.1 SUMMARY

Section Includes:

1. Prefabricated fixed blast resistant exterior window units.

1.2 RELATED REQUIREMENTS

Forced entry and ballistic rated glazing: Section 08 80 00, GLAZING.

1.3 APPLICABLE PUBLICATIONS

Comply with references to extent specified in this Section.

American Architectural Manufacturers Association (AAMA):

AAMA/WDMA/CSA 101/I.S.2/A440-11 Windows, Doors, and Skylights

American Welding Society (AWS):

D1.1/D1.1M-15...........Structural Welding Code - Steel

D1.3/D1.3M-08...........Structural Welding Code - Sheet Steel

D1.6/D1.6M-07...........Structural Welding Code - Stainless Steel

ASTM International (ASTM):

A36/A36M-19.............Carbon Structural Steel

A123/A123M-17...........Zinc (Hot-Dip Galvanized) Coatings on Iron and

Steel Products

A320/A320M-18...........Alloy-Steel and Stainless Steel Bolting

Materials for Low-Temperature Service

A666-15.................Annealed or Cold-Worked Austenitic Stainless

Steel Sheet, Strip, Plate and Flat Bar

B221-14.................Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

B221M-13................Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes

E283/A283M-18...........Standard Test Method for Determining Rate of

Air Leakage Through Exterior Windows, Curtain

Walls, and Doors Under Specified Pressure

Differences Across the Specimen

E331-00(2016)...........Standard Test Method for Water Penetration of

Exterior Windows, Skylights, Doors, and Curtain

Walls by Uniform Static Air Pressure Difference

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F1642/F1642M-17.........Standard Test Method for Glazing and Glazing

Systems Subject to Air blast Loadings

National Association of Architectural Metal Manufactures (NAAMM):

AMP 500-06..............Metal Finishes Manual

UL LLC (UL):

752-10(R2013)...........Bullet Resisting Equipment

Department of Veterans Affairs:

VA Physical Security and Resiliency Design Manual October 1, 2020

1.4 PREINSTALLATION MEETINGS

Conduct preinstallation meeting at project site minimum 30 days before beginning Work of this Section.

1. Required Participants:

a. Contracting Officer's Representative.

b. Inspection and Testing Agency.

c. Contractor.

d. Installer.

2. Meeting Agenda: Distribute agenda to participants minimum 3 days before meeting.

a. Installation schedule.

b. Installation sequence.

c. Preparatory work.

d. Protection before, during, and after installation.

e. Installation.

f. Transitions and connections to other work.

g. Inspecting and testing.

h. Other items affecting successful completion.

3. Document and distribute meeting minutes to participants to record decisions affecting installation.

1.5 SUBMITTALS

Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA AND

SAMPLES.

Submittal Drawings:

1. Show dimensioned details of window units, including intended metal and glazing materials. 1: 20 (Three quarter inch equals 1 foot) scaled elevations showing interior and exterior. Indicated how

08 56 53 - 3 window units can be replaced or removed, including replacement of glazing. Shop drawings shall be submitted for review and approval prior to fabrication. The contractor is responsible for all field verification of existing conditions and dimensions for new construction that is being conducted adjacent to or integral with existing construction. The field verification shall be conducted and incorporated in the submitted shop drawings and calculations prior to submission. Blast calculations and or testing data shall be submitted with the shop drawings.

2. Show detailed sections at 1: 5 (3 inch equal 1 foot) scale for members; indicating construction, size, and thickness of components, together with connections, fasteners, and means of separating dissimilar metals.

3. Provide final submittal drawings as DWG AutoCAD files.

Manufacturer's Literature and Data:

1. Description of each product, metal, and alloy when applicable.

2. Indicate manufacturer's recommendations for fasteners, welding, applied finishes, hardware and accessories.

3. Installation instructions.

4. Standard color chart.

Sustainable Construction Submittals:

1. Recycled Content: Identify post-consumer and pre-consumer recycled content percentage by weight.

Certificates: Indicate each product complies with specifications.

1. Window forced entry resistance.

2. Window blast resistance.

Calculations: Submit calculations for review and approval prepared by qualified blast consultant, with a minimum of 5 years of experience in design of blast resistant window systems, verifying window and glazing assembly including anchors comply with specified blast resistance performance given in Section 2.1.a of this specification. The magnitudes of the design threats W1, W2 and GP1, GP2 are defined in the

Physical Security and Resiliency Design Standards Data Definitions which is a document separate from the referenced VA Security and

Resiliency Design Manual. The Physical Security and Resiliency Design

Standards Data Definitions are provided on a need to know basis by the structural blast specialist performing the blast design on VA projects.

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It is the responsibility of the delegated engineer responsible for the design of blast resistant windows to request and obtain the Physical

Security and Resiliency Design Data Standard Data Definitions from the

VA Office of Construction and Facilities Management (CFM). Any associated delays or increased costs due to failure to obtain this information will be borne by the contractor.

Qualifications: Substantiate qualifications comply with specifications.

1. Manufacturer with project experience list demonstrating a minimum of

5 years of experience manufacturing blast resistant windows.

2. Installer with project experience list demonstrating a minimum of 5 years of experience installing blast resistant windows.

3. Welders and welding procedures.

1.6 QUALITY ASSURANCE

Manufacturer and Installer Qualifications:

1. Regularly manufactures and installs specified products.

2. Manufactured and installed specified products with satisfactory service on five similar installations for minimum five years.

a. Provide contact names and addresses for completed projects when requested by Contracting Officer's Representative.

Welders and Welding Procedures Qualifications:

1. Stainless Steel: AWS D1.6/D1.6M.

2. Steel: AWS D1.1/D1.1M.

3. Sheet Steel: AWS D1.3/D1.3M.

1.7 DELIVERY

Deliver prefabricated unit in manufacturer's original sealed packaging.

Mark packaging, legibly. Indicate manufacturer's name or brand, unit type, and manufacture date.

Before installation, return or dispose of products within distorted, damaged, wet, or opened packaging.

1.8 STORAGE AND HANDLING

Store products indoors in dry, weathertight facility.

Protect products from damage during handling and construction operations.

1.9 FIELD CONDITIONS

Field Measurements: Verify field conditions affecting window fabrication and installation. The field verification shall be conducted

08 56 53 - 5 and incorporated in the submitted shop drawings and calculations prior to submission. Show field measurements on Submittal Drawings.

1. Coordinate field measurement and fabrication schedule to avoid delay.

1.10 WARRANTY

Construction Warranty: FAR clause 52.246-21, "Warranty of

Construction."

PART 2 - PRODUCTS

2.1 SYSTEM PERFORMANCE

Design windows complying with specified performance:

1. Comply with VA Physical Security and Resiliency Design Manual

a. Standoff Distance: 25 feet (Life Safety Protected

b. Design Threat W1 at the standoff distance not to exceed pressure and impulse associated with GP1 threat for Life Safety Protected

Buildings.

c. Mullion deformation not to exceed deformation limits shown in

Table 6-4 of the referenced Physical Security and Resiliency

Design Manual.

d. Glazing performance condition shall not exceed those shown in

Table 6-3 of the referenced Physical Security and Resiliency

Design Manual.

e. Glass shall be restrained within the mullions with ½” bite and

3/8” wide continuous bead of structural silicone adhesive attaching the inner lite of the glass to the frame.

f. ASTM F1642, and AAMA/WDMA/CSA 101/I.S.2/A440.

2. Provide indicated levels of resistance for blast resistant window assemblies. Resistance level applies to anchorages, interfaces with adjoining substrates, glass retention, and hardware.

3. Would be attackers cannot penetrate through secure closed window assembly.

4. Provide combined performances within rating limitations knowing certain attacks can result in severe damage to unit and require replacement.

Blast Resistant (BR) Assemblies: Manufacturer's window unit assembled with panels, inserts, glazing and framing.

1. Provide BR rated units where shown or scheduled:

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a. As required to meet the blast performance requirements listed in this specification

Thermal Movement: Assembly capable of withstanding thermal movements resulting from ambient range of 67 degrees C (150 degrees F) to

82 degrees C (180 degrees F).

Design Performance: Comply with structural performance, air infiltration, and water penetration requirements indicated in

AAMA/WDMA/CSA 101/I.S.2/A440 for AW Class.

1. Wind Load Resistance: ASCE/SEI 7; Design criteria as indicated on

Drawings.

2. Water Infiltration: ASTM E331; no uncontrolled penetration at 300 Pa

(6.2 psf), minimum, pressure differential.

3. Air Infiltration: ASTM E283; Maximum 6 liter/second/square meter

(0.1 cubic feet/minute/square foot.) at static pressure difference of 300 Pa (6.2 pound square foot).

2.2 MATERIALS

Stainless Steel: ASTM A666, Type 304; formed stainless steel members.

Aluminum Extrusions: ASTM B221.

1. Framing Members: Alloy 6063-T5, -T6, or -T52, or alloy 6061-T6; 5 mm

(3/16 inch) minimum thickness.

2. Trim and Stops not exposed to forced entry attack: Alloy

6063-T5, -T6, or -T52; 1.5 mm (1/16 inch) minimum thickness.

Steel Shapes/Plates/Bars: ASTM A36/A36M, except where another designation is indicated.

Bolts and Fasteners: ASTM A320/A320M; Type 300-series stainless steel screws, bolts, nuts, and washers. Non-removable type where accessible from attack side.

Window Cleaner's Bolts: Nonmagnetic stainless steel, complying with safety regulations for window cleaning equipment.

Glazing Materials: Rated laminated assembly as specified in Section

08 80 00, GLAZING.

2.3 PRODUCTS - GENERAL

Provide blast resistant windows from one manufacturer.

Sustainable Construction Requirements:

1. Steel Recycled Content: 30 percent total recycled content, minimum.

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2. Stainless Steel Recycled Content: 70 percent total recycled content, minimum.

3. Aluminum Recycled Content: 80 total recycled content, minimum.

2.4 FABRICATION

Assemblies: Shop fabricate matching profiles indicated on Drawings.

Make welds that comply with AWS standards; exposed welds ground smooth.

Provide welded-in-place reinforcements and anchorage devices.

1. Removable Glazing Stops: Applied to room side of window.

a. Miter and weld removable stops at corners.

b. Secure removable stops to frames with countersunk screws, spaced as required for specified performance requirements.

2. Existing Buildings: Fabricate continuous frame for anchoring to supporting structural elements shown on the drawings.

a. Provide both inner and outer frames by one manufacturer.

b. Anchorage: Provide anchors as required to meet the project loading requirements

Unit Anchorages: Fabricate metal anchorage system complying with performance requirements.

Unit Glazing: Laminated glass assembly meeting VA Physical Security and

Resiliency Design Manual. Testing shall be in accordance with

ASTM F1642, as specified in Section 08 80 00, GLAZING. Where tested glazed systems do not match the project dimensional requirements, submit calculations prepared by a qualified blast consultant using accepted dynamic methods that demonstrate the submitted system meets the project requirements.

2.5 FINISHES

General: Finish fabricated units including framing, sub-framing, hardware, and accessories.

1. Refer to Section 09 06 00, SCHEDULE FOR FINISHES.

Steel Surfaces: ASTM A123/A123M galvanized.

Stainless Steel: NAAMM AMP 500; No. 4 polished finish, except retain manufacturer's standard mill finish on exposed fasteners and similar devices.

Blend welds to match adjacent finish.

Aluminum Anodized Finish: NAAMM AMP 500.

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1. Color Anodized Finish: AA-C22A42 or AA-C22A44; Class I

Architectural, 0.018 mm (0.7 mil) thick.

2.6 ACCESSORIES

Bituminous Paint: SSPC Paint 12 (cold-applied asphalt mastic).

Welding Materials: Type to suit application for color match, strength and compatibility in fabricated item.

1. Stainless Steel: AWS D1.6/D1.6M, TIG using rods made from alloyed

Type 308 stainless steel.

2. Steel: D1.1/D1.1M.

3. Steel Sheet: D1.3/D1.3M-08.

Galvanizing Repair Paint: MPI No. 18.

PART 3 - EXECUTION

3.1 PREPARATION

Examine and verify substrate suitability for product installation.

1. Verify opening is correctly sized and located.

2. Verify substrate is prepared to receive frame anchors.

Protect existing construction and completed work from damage.

Apply bituminous coating approximately 30 mils dry film thickness, or other suitable permanent separator, on surfaces of dissimilar metals, and metal surfaces in contact with concrete.

1. Where the metals are exposed to view, provide a plastic or neoprene separator between dissimilar metals.

3.2 INSTALLATION

Install products according to manufacturer's instructions.

Install window units according to manufacturer's installation instructions.

Set units accurately, plumb, and level.

Securely anchor to partition framing as shown on approved submittal drawings to withstand specified performance.

Anchorage to Existing Building:

1. Spacing: Maximum 300 mm (12 inch) on center through pre drilled bolt holes in structural frame//Install anchorage per reviewed and approved shop drawings.

2. Anchor Diameter: 10 mm (3/8 inch) minimum.

3. Minimum Embedment and Edge Distances:

a. Embedment in Concrete: 88 mm (3-1/2 inches).

b. Embedment in Solid Masonry: 150 mm (6 inches).

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c. Edge Distance: 75 mm (3 inches).

4. Do not cut rebar during concrete anchor installation without approval of the Contracting Officer’s Representative (COR).

Touch up damaged factory finishes.

1. Repair galvanized surfaces with galvanized repair paint.

3.3 CLEANING

Clean exposed window surfaces. Remove temporary labels, contaminants, and stains.

Clean glazing according to Section 08 80 00, GLAZING.

3.4 PROTECTION

Protect window units from construction operations.

Remove protective materials immediately before acceptance.

Repair damage.

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