092216 NON-STRUCTURAL METAL FRAMING 2.pdf

UPGRADE EMERGENCY POWER IN BUILDING 138

VAMC, MARION, IN PROJECT: 610-16-104

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SECTION 09 22 16

NON-STRUCTURAL METAL FRAMING

PART 1 - GENERAL

1.1 DESCRIPTION

This section specifies steel studs wall systems, s haft wall systems, ceiling or soffit suspended or furred framing, wall furring, fasteners, and accessories for the screw attachment of gypsum board, plaster bases or other building boards.

1.2 RELATED WORK

A. Support for wall mounted items: Section 05 50 00 , METAL FABRICATIONS.

1.3 TERMINOLOGY

A. Description of terms shall be in accordance with ASTM C754, ASTM C11, ASTM C841 and as specified.

B. Underside of Structure Overhead: In spaces where steel trusses or bar joists are shown, the underside of structure overhe ad shall be the underside of the floor or roof construction support ed by beams, trusses, or bar joists. In interstitial spaces with walk-on floors the underside of the walk-on floor is the underside of structure overhead.

C. Thickness of steel specified is the minimum bare (uncoated) steel thickness.

1.4 SUBMITTALS

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

B. Manufacturer's Literature and Data:

1. Studs, runners and accessories.

2. Hanger inserts.

3. Channels (Rolled steel).

4. Furring channels.

5. Screws, clips and other fasteners.

C. Shop Drawings:

1. Typical ceiling suspension system.

2. Typical metal stud and furring construction syst em including details around openings and corner details.

3. Typical shaft wall assembly

4. Typical fire rated assembly and column fireproof ing showing details of construction same as that used in fire rating te st.

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D. Test Results: Fire rating test designation, each fire rating required for each assembly.

1.5 DELIVERY, IDENTIFICATION, HANDLING AND STORAGE

In accordance with the requirements of ASTM C754.

1.6 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of thi s specification to the extent referenced. The publications are referenced in the text by the basic designation only.

B. American Society For Testing And Materials (ASTM )

A641-09.................Zinc-Coated (Galvanized) Ca rbon Steel Wire

A653/653M-11............Specification for Steel She et, Zinc Coated

(Galvanized) or Zinc-Iron Alloy-Coated

(Galvannealed) by Hot-Dip Process.

C11-10..................Terminology Relating to Gyp sum and Related

Building Materials and Systems

C635-07.................Manufacture, Performance, a nd Testing of Metal

Suspension System for Acoustical Tile and

Lay-in Panel Ceilings

C636-08.................Installation of Metal Ceili ng Suspension

Systems for Acoustical Tile and Lay-in Panels

C645-09.................Non-Structural Steel Framin g Members

C754-11.................Installation of Steel Frami ng Members to

Receive Screw-Attached Gypsum Panel Products

C841-03(R2008)..........Installation of Interior La thing and Furring

C954-10.................Steel Drill Screws for the Application of

Gypsum Panel Products or Metal Plaster Bases to

Steel Studs from 0.033 in. (0.84 mm) to 0.112

in. (2.84 mm) in Thickness

E580-11.................Application of Ceiling Susp ension Systems for

Acoustical Tile and Lay-in Panels in Areas

Requiring Moderate Seismic Restraint.

PART 2 - PRODUCTS

2.1 PROTECTIVE COATING

Galvanize steel studs, runners (track), rigid (hat section) furring channels, "Z" shaped furring channels, and resilien t furring channels, with coating designation of G40 or equivalent.

2.2 STEEL STUDS AND RUNNERS (TRACK)

A. ASTM C645, modified for thickness specified and sizes as shown.

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1. Use C 645 steel, 0.75 mm (0.0296-inch) minimum b ase-metal (30 mil).

2. Runners same thickness as studs.

3. Exception: Members that can show certified third party testing with gypsum board in accordance with ICC ES AC86 (Approv ed May 2012) need not meet the minimum thickness limitation or minimu m section properties set forth in ASTM C 645. The submission of an evaluation report is acceptable to show conformance to this re quirement. Use C

645 steel, 0.48mm (0.019 inch) minimum base-metal ( 19 mil).

B. Provide not less than two cutouts in web of each stud, approximately

300 mm (12 inches) from each end, and intermediate cutouts on approximately 600 mm (24-inch) centers.

C. Doubled studs for openings and studs for support ing concrete backer-board.

D. Studs 3600 mm (12 feet) or less in length shall be in one piece.

E. Shaft Wall Framing:

1. Conform to rated wall construction.

2. C-H Studs or C-T Studs.

3. E Studs.

4. J Runners.

5. Steel Jamb-Strut.

2.3 FURRING CHANNELS

A. Rigid furring channels (hat shape): ASTM C645.

B. Resilient furring channels:

1. Not less than 0.45 mm (0.0179-inch) thick bare m etal.

2. Semi-hat shape, only one flange for anchorage wi th channel web leg slotted on anchorage side, channel web leg on other side stiffens fastener surface but shall not contact anchorage su rface other channel leg is attached to.

C. "Z" Furring Channels:

1. Not less than 0.45 mm (0.0179-inch)-thick base m etal, with 32 mm

(1-1/4 inch) and 19 mm (3/4-inch) flanges.

2. Web furring depth to suit thickness of insulatio n.

D. Rolled Steel Channels: ASTM C754, cold rolled; o r, ASTM C841, cold rolled.

2.4 FASTENERS, CLIPS, AND OTHER METAL ACCESSORIES

A. ASTM C754, except as otherwise specified.

B. For fire rated construction: Type and size same as used in fire rating test.

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C. Fasteners for steel studs thicker than 0.84 mm ( 0.033-inch) thick. Use

ASTM C954 steel drill screws of size and type recom mended by the manufacturer of the material being fastened.

D. Clips: ASTM C841 (paragraph 6.11), manufacturer ’s standard items.

Clips used in lieu of tie wire shall have holding p ower equivalent to that provided by the tie wire for the specific appl ication.

E. Concrete ceiling hanger inserts (anchorage for h anger wire and hanger straps): Steel, zinc-coated (galvanized), manufactu rers standard items, designed to support twice the hanger loads imposed and the type of hanger used.

F. Tie Wire and Hanger Wire:

1. ASTM A641, soft temper, Class 1 coating.

2. Gage (diameter) as specified in ASTM C754 or AST M C841.

G. Attachments for Wall Furring:

1. Manufacturers standard items fabricated from zin c-coated

(galvanized) steel sheet.

2. For concrete or masonry walls: Metal slots with adjustable inserts or adjustable wall furring brackets. Spacers may b e fabricated from

1 mm (0.0396-inch) thick galvanized steel with corr ugated edges.

H. Power Actuated Fasteners: Type and size as recom mended by the manufacturer of the material being fastened.

2.5 SUSPENDED CEILING SYSTEM FOR GYPSUM BOARD (OPTION)

A. Conform to ASTM C635, heavy duty, with not less than 35 mm (1-3/8 inch) wide knurled capped flange face designed for screw attachment of gypsum board.

B. Wall track channel with 35 mm (1-3/8 inch) wide flange.

PART 3 - EXECUTION

3.1 INSTALLATION CRITERIA

A. Where fire rated construction is required for wa lls, partitions, columns, beams and floor-ceiling assemblies, the co nstruction shall be same as that used in fire rating test.

B. Construction requirements for fire rated assembl ies and materials shall be as shown and specified, the provisions of the Sc ope paragraph (1.2) of ASTM C754 and ASTM C841 regarding details of con struction shall not apply.

3.2 INSTALLING STUDS

A. Install studs in accordance with ASTM C754, exce pt as otherwise shown or specified.

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B. Space studs not more than 610 mm (24 inches) on center.

C. Cut studs 6 mm to 9 mm (1/4 to 3/8-inch) less th an floor to underside of structure overhead when extended to underside of structure overhead.

D. Where studs are shown to terminate above suspend ed ceilings, provide bracing as shown or extend studs to underside of st ructure overhead.

E. Extend studs to underside of structure overhead for fire, rated partitions, smoke partitions, shafts, and sound rat ed partitions and insulated exterior wall furring.

F. Openings:

1. Frame jambs of openings in stud partitions and f urring with two studs placed back to back or as shown.

2. Fasten back to back studs together with 9 mm (3/ 8-inch) long Type S pan head screws at not less than 600 mm (two feet) on center, staggered along webs.

3. Studs fastened flange to flange shall have splic e plates on both sides approximately 50 X 75 mm (2 by 3 inches) scre wed to each stud with two screws in each stud. Locate splice plates at 600 mm (24 inches) on center between runner tracks.

G. Fastening Studs:

1. Fasten studs located adjacent to partition inter sections, corners and studs at jambs of openings to flange of runner tracks with two screws through each end of each stud and flange of runner.

2. Do not fasten studs to top runner track when stu ds extend to underside of structure overhead.

H. Chase Wall Partitions:

1. Locate cross braces for chase wall partitions to permit the installation of pipes, conduits, carriers and simil ar items.

2. Use studs or runners as cross bracing not less t han 63 mm (2-1/2 inches wide).

I. Form building seismic or expansion joints with d ouble studs back to back spaced 75 mm (three inches) apart plus the wid th of the seismic or expansion joint.

J. Form control joint, with double studs spaced 13 mm (1/2-inch) apart.

3.3 INSTALLING WALL FURRING FOR FINISH APPLIED TO ONE SIDE ONLY

A. In accordance with ASTM C754, or ASTM C841 excep t as otherwise specified or shown.

B. Wall furring-Stud System:

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1. Framed with 63 mm (2-1/2 inch) or narrower studs , 600 mm (24 inches) on center.

2. Brace as specified in ASTM C754 for Wall Furring -Stud System or brace with sections or runners or studs placed hori zontally at not less than three foot vertical intervals on side wit hout finish.

3. Securely fasten braces to each stud with two Typ e S pan head screws at each bearing.

C. Direct attachment to masonry or concrete; rigid channels or "Z" channels:

1. Install rigid (hat section) furring channels at 600 mm (24 inches) on center, horizontally or vertically.

2. Install "Z" furring channels vertically spaced n ot more than 600 mm

(24 inches) on center.

3. At corners where rigid furring channels are posi tioned horizontally, provide mitered joints in furring channels.

4. Ends of spliced furring channels shall be nested not less than

200 mm (8 inches).

5. Fasten furring channels to walls with power-actu ated drive pins or hardened steel concrete nails. Where channels are s pliced, provide two fasteners in each flange.

6. Locate furring channels at interior and exterior corners in accordance with wall finish material manufacturers printed erection instructions. Locate "Z" channels within 100 mm (4 inches) of corner.

D. Installing Wall Furring-Bracket System: Space fu rring channels not more than 400 mm (16 inches) on center.

3.4 INSTALLING SUPPORTS REQUIRED BY OTHER TRADES

A. Provide for attachment and support of electrical outlets, plumbing, laboratory or heating fixtures, recessed type plumb ing fixture accessories, access panel frames, wall bumpers, woo d seats, toilet stall partitions, dressing booth partitions, urinal screens, chalkboards, tackboards, wall-hung casework, handra il brackets, recessed fire extinguisher cabinets and other items like auto door buttons and auto door operators supported by stud c onstruction.

B. Provide additional studs where required. Instal l metal backing plates, or special metal shapes as required, securely faste ned to metal studs.

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3.5 INSTALLING FURRED AND SUSPENDED CEILINGS OR SOFFITS

A. Install furred and suspended ceilings or soffits in accordance with

ASTM C754 or ASTM C841 except as otherwise specifie d or shown for screw attached gypsum board ceilings and for plaster ceil ings or soffits.

1. Space framing at 400 mm (16-inch) centers for me tal lath anchorage.

2. Space framing at 600 mm (24-inch) centers for gy psum board anchorage.

B. New exposed concrete slabs:

1. Use metal inserts required for attachment and su pport of hangers or hanger wires with tied wire loops for embedding in concrete.

2. Furnish for installation under Division 3, CONCR ETE.

3. Suspended ceilings under concrete rib constructi on shall have runner channels at right angles to ribs and be supported f rom ribs with hangers at ends and at 1200 mm (48-inch) maximum in tervals along channels. Stagger hangers at alternate channels.

C. Concrete slabs on steel decking composite constr uction:

1. Use pull down tabs when available.

2. Use power activated fasteners when direct attach ment to structural framing can not be accomplished.

D. Where bar joists or beams are more than 1200 mm (48 inches) apart, provide intermediate hangers so that spacing betwee n supports does not exceed 1200 mm (48 inches). Use clips, bolts, or wi re ties for direct attachment to steel framing.

E. Steel decking without concrete topping:

1. Do not fasten to steel decking 0.76 mm (0.0299-i nch) or thinner.

2. Toggle bolt to decking 0.9 mm (0.0359-inch) or t hicker only where anchorage to steel framing is not possible.

F. Installing suspended ceiling system for gypsum b oard (ASTM C635

Option):

1. Install only for ceilings to receive screw attac hed gypsum board.

2. Install in accordance with ASTM C636.

a. Install main runners spaced 1200 mm (48 inches) on center.

b. Install 1200 mm (four foot) tees not over 600 mm (24 inches) on center; locate for edge support of gypsum board.

c. Install wall track channel at perimeter.

G. Installing Ceiling Bracing System:

1. Construct bracing of 38 mm (1-1/2 inch) channels for lengths up to

2400 mm (8 feet) and 50 mm (2 inch) channels for le ngths over 2400

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2. Install bracing at an approximate 45 degree angl e to carrying channels and structure overhead; secure as specifie d to structure overhead with two fasteners and to carrying channel s with two fasteners or wire ties.

3. Brace suspended ceiling or soffit framing in sei smic areas in accordance with ASTM E580.

3.6 TOLERANCES

A. Fastening surface for application of subsequent materials shall not vary more than 3 mm (1/8-inch) from the layout line .

B. Plumb and align vertical members within 3 mm (1/ 8-inch.)

C. Level or align ceilings within 3 mm (1/8-inch.)

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