Q-FLOOR/TAPROUTE SYSTEM (GKX with Tapmate V)March 2008
PART 1: GENERAL
1.01SCOPE
Furnish the complete structural/electrical steel floor system. Work includes, but is not necessarily limited to, the following principal items:
A.Composite cellular and non-cellular steel deck units and accessories, including concrete retainer flashings where indicated; perimeter edgeform if specified.
B.All factory punched cell access holes at trench header and preset outlet box locations.
C.Trench headers, flute closers, preset outlet boxes, grommets, butt joint tape and power risers.
D.Preset outlet box activation assemblies.
1.02RELATED WORK SPECIFIED IN OTHER SECTIONS (CSI Master Format)
A.Concrete, welded wire fabric, or reinforcing fibers; Section 0330 00
B.Fireproofing; Section 07 81 00
C.Decking; Section 05 31 00
D.Electrical; Section 26 27 00 & 26 05 33
1.03QUALITY ASSURANCE
A.Standards
1.This specification establishes the minimum quality of required function, dimension and appearance to be met by any proposed substitution.
2.The manufacturer and erector shall demonstrate a minimum of five years experience with this type of electrified floor system on similar sized projects.
B.Codes and Approvals (latest editions)
The project design and material furnished shall be in strict compliance with the following codes and approvals:
1.Steel deck section properties shall be calculated in strict accordance with the procedures outlined in the American Iron and Steel Institute (AISI) "Specification for the Design of Cold Formed Steel Structural Members, " latest edition.
2.Composite beams and girders shall be designed in strict accordance with the American Institute of Steel Construction (AISC) Specification for the design of composite beams with shear studs and steel deck composite slabs, latest edition.
3.American Welding Society Structural Welding Code with reference to applicable AISC and AISI provisions.
4.Complete UL listing in the Electrical Construction Materials Directory and compliance with UL 209.
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Q-FLOOR/TAPROUTE SYSTEM (GKX With Tapmate V)March 2008
5. ICBO (ICC) reports shall cover section properties, superimposed slab capacities, and diaphragm design shears for all cellular and non-cellular decking gauges and profiles being used. In addition, ICBO (ICC) reports shall substantiate diaphragm shear ratios, section properties, and approved gauges for all metal decks being used with trench header and concrete fill.
6.Installation shall comply with the National Electrical Code.
7.Trench header, cellular floor deck units, and activations classified and listed in Underwriters Laboratories Fire Resistance Directory. Each cellular floor unit shall bear the UL label and marking. Activations shall be listed in UL Fire Resistance Directory. UL rating shall be based on one UL Design Assembly Number covering all components of floor assembly, i.e., cellular and non-cellular floor decking, bottomless trench header, preset inserts, activating assemblies, concrete type and thickness, composite beam and applicable spray fireproofing.
1.04SUBSTITUTIONS
A.The materials, products, and equipment specified in this section establish a minimum standard of quality and required function, dimension, and appearance to be met by any proposed substitution.
B.No substitutions will be considered unless written request for approval has been submitted by the bidder and has been received by the Architect at least twenty (20) days prior to the date for receipt of bids.
C.Each such request shall include the name of all items to be substituted with appropriate catalogs and a complete description of the proposed substitute including drawings, cross-sections, a full-scale prototype assembly, performance and test data, compliance with codes and approvals, and other information necessary for a total evaluation.
D.All approved substitutes will be named in an addendum issued ten (10) days prior to bid date.
1.05SUBMITTALS AFTER AWARD OF CONTRACT:
A.Manufacturer's specifications and installation instructions for each product specified shall be submitted for approval. Included shall be a manufacturer's certification to show compliance with these specifications. Also prior to product shipment, a copy of each installation instruction shall be distributed to the installer with a copy of transmittal submitted to show compliance.
B.Shop Drawings
1.Detailed drawings showing layout and types of deck units, shape, gauge, dimensions, perimeter pour stop, and end closers, supplementary framing, cut openings, special jointing or other accessories shall be submitted.
2.Schedule of field welding shall be submitted.
3.Trench header, preset outlet box and riser locations and details, trench header expansion joints, typical expansion joint through floor, if required, shall be submitted.
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Q-FLOOR/TAPROUTE SYSTEM (GKX With Tapmate V)March 2008
C.The following listed samples shall be submitted: (1) Multi-Service Preset Outlet Box mounted on one foot sample cellular floor raceway complete with fully grommetted pre-punched holes, illustrating all finish hardware and internal parts. (2) Two foot length of selected width trench header with factory assembled cover, tile stops, side rails, latch clips, adjustable compartment dividers, and fasteners. (3) Activation Options Catalog.
PART 2 - PRODUCTS
2.013"DEEP CELLULAR AND NON-CELLULAR FLOOR UNITS
A.Material: The steel floor and deck units and associated accessories shall be fabricated from steel sheet conforming to ASTM A653-94, Grade A or ASTM A653-84 with a minimum yield strength of 33 KSI.
B.Fabrication
1.All floor units shall be fabricated in lengths to span a minimum of four structural supports (three spans) except where precluded by the building layout. The minimum depth of the units shall be 3" and each cellular unit shall contain 3 separate cells.
2.Protective Coating shall conform to ASTM A924 G-60 minimum or to ASTM A924-94 and Federal Specification QQ-S-775E, Type 1, Class E, conforming to G-60 minimum coating class and complying with UL 209.
3.Cellular floor units and trench header shall conform as electrical raceways to the requirements of UL 209.
4.Deck unit gauges shall be minimum 20 gauge for non-cellular and 20/20 gauge for cellular units and designed to meet span, load, and deflection criteria.
5.Cellular floor shall be roll-formed to assure dimensional uniformity and strength. Sufficient embossments shall provide the horizontal shear design loading based on a minimum factor of safety of 2.0 on ultimate load. Minimum depth of embossments or indents shall be 0.060".
6.Shear devices rolled into floor and deck webs or flanges shall be spaced at 3" maximum centers along the length of the deck or floor unit and at 8" maximum spaces in the transverse direction.
7.Flat compression elements shall be considered as "stiffened" by other elements only if such elements are connected or are welded together at 6" maximum spaces in the direction of deck span. Such connections or welding shall be adequate to develop the full shear which could occur at the weld interface with a safety factor of 2.0.
8.Where shear connectors are utilized for composite frame design, the maximum spacing of deck welds or shear connectors to support beam flanges shall not exceed 18" per AISC specifications.
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Q-FLOOR/TAPROUTE SYSTEM (GKX With Tapmate V)March 2008
9.Top entry cell access holes at trench header or preset outlet box locations will be permitted only when tested strength reductions for each cellular unit and gauge combination being supplied on the project are submitted for review and approved by the project structural engineer.
10.Cellular units with immediately adjacent cells separated only by steel dividers (no concrete separation between cells) will be acceptable only when provided with UL listed cell separators at each butt joint nested within the cells to assure against wire or fish tape crossover.
C.Design
1.Calculate section properties of the floor and deck units according to the latest AISI procedures. Section properties shall be reduced accordingly where electrical access holes are provided in the effective areas (such as flanges) of the floor unit profile. The floor deck shall be designed non-compositely to carry all dead and live loads at all trench header spans.
2.In cases where multi-span floor units are used, base non-composite and composite design upon uniform load placed on all spans simultaneously.
3.Maximum allowable bending stress in the steel floor is 0.6 Fy for non-composite design in trench header spans.
4.Steel deck deflection shall not exceed 1/180th of the clear span or 3/4" maximum, relative to the supports, under the uniformly distributed concrete dead load (all spans loaded simultaneously).
2.02TRENCH HEADER
A.Trench Header shall be UL labeled, full bottomless type.
B.Removable Covers shall conform to UL 209 for minimum thickness of roller leveled steel after shearing for size. A manufacturer's letter of certification guaranteeing roller leveling of plate after size shearing shall be provided upon request.
C.Covers shall be secured by mechanical latching devices without any exposed surface fasteners. Direct connection of the cover plate to the side rail assembly with screws or other mechanical fasteners is not acceptable. Steel screws penetrating an aluminum race or slot are not permitted.
D.Factory Assembled Cover Assemblies with Side Rails shall be adjustable from
2-3/8" (min.) to 3-5/16" (max.) over top of cells for 2-1/2" nominal concrete fill, from 3-1/8" (min.) to 4-1/16" (max.) over top of cells for 3-1/4" nominal concrete fill, and from 1-7/8" (min.) to 2-1/2" (max.) over top of cells for 2" nominal concrete fill.
E.A minimum of five square inches of mechanical locking surface of side rail to concrete through keying per lineal inch of side rail shall be provided. Anchoring clips and studs as keying device substitutes are not acceptable. Side rail shall be nominally 1/8" thick and shall provide 3/8" flat width at the screed level to furnish a stop and for seating floor tile respectively. Three inch minimum alignment key extrusion with a one and one half inch minimum alignment surface on each adjacent side rail shall provide horizontal and vertical alignment of the trench.
F.Covers shall be painted by a two coat spray or dip process with an air-dried thickness of 1.0 mil dry film thickness.
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Q-FLOOR/TAPROUTE SYSTEM (GKX With Tapmate V)March 2008
G.Longitudinal Cover Seating Gaskets with a nominal width of 1/4" shall be integral with the vinyl tile stop securely anchored to trench side rail units. Separate, "lay in" type gaskets shall not be permitted.
H.Edging for Finished Floor Tile shall be vinyl composition with integral cover seating gaskets, 1/8" width on top, with top edging to match floor tile color.
I.Cell Access Holes: A total of nine (9) holes at each cell/trench intersection shall be provided as follows:
(1)Four 1-1/2" x 7" obround, factory punched holes into webs of each telephone and each special service or data cell. One-piece, preformed, rigid nylon, snapin grommets shall be provided and shall firmly fit into all web holes and shall completely grommet the opening perimeter. No metal edge shall be exposed at any punched opening. Flexible, unformed, stick grommets are not acceptable at any factory punched opening. Cutting of or other modification to factory supplied grommets is not acceptable.
(2)One 2-1/4" round, factory punched hole into top of each power cell bushed with a zinc power transition sleeve. No metal edge shall be exposed at any punched opening. Flexible, unformed, stick grommets are not acceptable. Cutting of or other modification to factory supplied grommets is not acceptable.
J.Effective minimum width of trenches shall be 1-3/4" less than cover width. Unit lengths shall not exceed 6'0" to prevent installation damage.
K.Cell closers at cell ends shall be made from minimum 22 gauge steel angles with protective coating conforming to UL 209.
L.Power wire compartments shall conform to UL 209, with a minimum steel thickness of 0.054" in 3-1/2", 4-1/2" or 5-1/2" widths with a 3-1/4" diameter opening in base to align with self-grommetted 2-1/4" round adapter to power cell opening. Vertically adjustable dividers, one each side, shall be provided with a 1/2" wide top flange bearing surface to support the cover plate. A locking nut device for precise height setting shall be provided. Manufacturer shall provide test data to show the adequacy of the locking nut device to support a 500# concentrated load without significant vertical slip. Welding of adjustable dividers to provide cover support is not permitted.
M.Trench/raceway interconnections between telephone and data compartments shall occur at 12" intervals without reducing effective cross section of compartments. All access openings shall be bushed and/or curved edged. Minimum area for interconnection shall be 15 sq. inches.
N.Cover Plate Load Capacity: Trench cover plate and power compartment/side rail supports must withstand a static concentrated loading of 500# and meet UL 209 requirements.
Note: Where higher concentrated load capacities are required, the manufacturer shall provide test data showing the capability of the cover plates of a trench header to satisfactorily carry a concentrated static load.
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Q-FLOOR/TAPROUTE SYSTEM (GKX With Tapmate V)March 2008
2.03PRESET OUTLET BOXES
A.All preset outlet box shall be UL labeled and shall be three-service type.
B.All openings into the box shall be factory punched. Openings in webs of telephone and special service or data cells shall be 1-1/2" x 33/4" obround in each cell (minimum 4.57 square inch area after complete grommetting with snap-in grommet). Openings in top flange of power cell shall be 1-3/4" diameter round. One-piece, preformed, rigid nylon, snapin grommets shall be provided and shall firmly fit into wire egress holes and shall completely grommet the opening perimeter prior to wire pulling. No metal edge shall be exposed at any wire egress opening. Flexible, unformed, stick grommets are not acceptable. No partial grommetting or exposed edges of any kind are acceptable.
C.General Description: Boxes shall be formed from one piece of galvanized sheet steel. The minimum thickness of the steel shall be 18 gauge (nominal). The box shall extend between the webs of the outboard cells and cover the depressed cell such that three distinct wire services can be pulled directly into the box.
D.Box Capacity:
1.In the activated condition, the preset outlet box shall encapsulate the following minimum volumes of space:
Concrete FillVolume
2-1/2" above cells325 cu. in.
3-1/4" above cells355 cu. in.
2.Each box shall accommodate the following electrical devices:
a.Four duplex receptacles for power.
b.One category 5 AMP-ACO block.
c.One duplex RJ-45 outlet.
E.Attachment To Cells: Preset outlet boxes shall be attached to the cellular units over the factory punched access holes after cell installation. The attachment shall consist of four separate devices, each of which can resist a static uplift force of 50 pounds. Boxes shall be capable of withstanding a side impact force of 50 PSF without becoming dislodged from the cellular unit.
F.Grommetting: All boxes shall be free of sharp edges, notches, or folds which could capture or abrade the insulation of a wire during service life. Grommetting shall consist of one piece molded grommets.
G.Break-out Pan: Each box shall be fitted with a steel pan fastened to the top of the box to provide for a clean concrete break-out when the box is activated. The pan shall be coated on all surfaces with paint to act as a release agent. Galvanized pans or pans coated with oil will not be allowed. The depth of the pan shall be no greater than 5/8 inch to facilitate concrete break-out.
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Q-FLOOR/TAPROUTE SYSTEM (GKX With Tapmate V)March 2008
H.Knock-Outs: Each box shall be provided with at least one knock-out for power and one knock-out for low voltage use.
I.Afterset Outlets: A U.L. approved multi-service outlet capable of using the same activation covers as the preset outlet must be available for any cellular floor system approved.
2.04PRESET OUTLET BOX ACTIVATION ASSEMBLIES
A.Activation assemblies shall consist of cover assembly, electrical brackets and partitions, grommets, and hardware. High and low voltage connectors shall not be part of the activation kit. Box activation shall consist of hardware for either concealed (all connectors and fittings below the finished floor surface) or flush mounted. All removable activation cover plates shall be provided with a positive locking force. An independent lab report confirming this performance shall accompany submittal as proof of conformance. Friction fit type latching is expressly prohibited. Activation options shall be provided as follows: (select as required)
1.Easy Access Deluxe - One, two, three, or four 15 or 20 amp duplex receptacles plus a single or double duplex modular telephone plate, plus a data interconnect plate shall be furnished.
2.Concealed Sloped - One or two 15 or 20 amp duplex receptacles, plus a single or double duplex modular telephone plate, plus a data interconnect plate shall be furnished.
3.Easy Access Standard - One flush surface mounted plus one or two in-cavity 15 or 20 amp duplex receptacles, plus a single or double duplex modular telephone plate, plus a data interconnect plate shall be furnished. Other options include one 250 volt, or one 30 amp, or one twist-lock surface mounted receptacle.
4.Wired Partition Interface -
a.High Voltage - Valox cover plate shall accept conduit transition and shall provide one in-cavity 15 or 20 amp duplex receptacle. The preset outlet box shall contain a power connect/junction box which accepts a partition flexible power whip, a flexible conduit, or hard wiring.
b.Low Voltage - Available Valox cover shall be removable and separate from high voltage cover plate. Single or double modular duplex telephone plate, plus a data interconnect plate shall be furnished. Complete separation of power and low voltage wires shall be maintained.
5.Above the Floor Multi-Service Outlet - One 15 or 20 amp duplex receptacle, plus one low voltage transition above the floor, and plus the other low voltage connection in the box cavity shall be furnished.