**CONSTRUCTION STANDARD SPECIFICATION**

**SECTION 05310**

**[STEEL DECK]{.underline}**

Page

PART 1 - GENERAL

1.01 Summary [2](#summary)

1.02 References [2](#references)

1.03 Submittals [3](#submittals)

1.04 Quality Assurance [4](#quality-assurance)

1.05 Delivery, Storage, And Handling [4](#delivery-storage-and-handling)

PART 2 - PRODUCTS

2.01 Materials [5](#materials)

2.02 Accessories [6](#accessories)

2.03 Fabrication [6](#fabrication)

PART 3 - EXECUTION

3.01 Examination [7](#examination)

3.02 Preparation [7](#preparation)

3.03 Installation [7](#installation)

3.04 Anchorage [9](#anchorage)

3.05 Cleaning And Touch-Up [10](#cleaning-and-touch-up)

**CONSTRUCTION STANDARD SPECIFICATION**

**SECTION 05310**

**[STEEL DECK]{.underline}**

# PART 1 - GENERAL

## 1.01 SUMMARY

A. This section includes the fabrication and erection of composite steel
deck, steel roof deck, non-composite steel form deck and steel deck
accessories.

B. Related Sections: Refer to the following sections for related work:

1\. Section 03300, "Cast-In-Place Concrete" for concrete topping and
reinforcing steel.

2\. Section 04220, "Concrete Masonry Unit" for steel deck bearing
plates.

3\. Section 05120, "Structural Steel" for shop welded shear connectors.

4\. Section 05500, "Metal Fabrications" for framing openings and
miscellaneous steel shapes.

5\. Section 09900, "Painting"

## 1.02 REFERENCES

A. American Iron and Steel Institute (AISI)

Specification for the Design of Cold-Formed Steel Structural Members

B. American Society of Testing and Materials (ASTM)

A611 Standard Specification for Steel, Sheet, Carbon, Cold-Rolled,
Structural Quality

A653 Standard Specification for Steel Sheet, Zinc-Coated or Zinc-Iron
Alloy-Coated by the Hot-Dip Process

A780 Practice for Repair of Damaged and Uncoated Areas of Hot-Dip
Galvanized Coatings

A924 Standard Specification for General Requirements for Steel Sheet,
Metallic-Coated by the Hot-Dip Process

C. American Welding Society (AWS)

D1.1 Structural Welding Code - Steel

D1.3 Structural Welding Code - Sheet Steel

D. Factory Mutual (FM)

Approval Guide

E. Federal Specification (FS)

TT-P-664 Primer Coating, Alkyd, Corrosion-Inhibiting, Lead and Chromate
Free, VOC-Compliant

F. Military Standardization Documents (MIL)

P-21035B Paint, High Zinc Dust Content, Galvanizing Repair

G. Steel Deck Institute (SDI)

Publication No. 29 Design Manual for Composite Decks, Form Decks, Roof
Decks and Cellular Deck Floor Systems with Electrical Distribution

H. Underwriter's Laboratories, Inc. (UL)

Fire Resistance Directory

## 1.03 SUBMITTALS

A. General: Submit the following in accordance with Conditions of
Contract and Section 01330, "Submittal Procedures."

B. Product Data: Submit product data or manufacturer's specifications
and installation instructions for each distinct type of decking and for
accessories.

C. Shop Drawings: Submit detailed shop drawings showing layout and types
of deck panels, anchorage details, and conditions requiring closure
panels, supplementary framing, sump pans, cant strips, cut openings,
special jointing or other accessories. Include mark number, type and
location of metal decking.

D. Certification: Submit manufacturer's certification that decking
complies with Steel Deck Institute (SDI) Specifications.

E. Welders Certificates: Provide certification that all welders to be
employed in work comply with requirements specified in "Quality
Assurance" article.

F. Welding Procedures: Provide written welding procedure specification
(WPS) document per AWS Code requirements.

G. Asbestos-Free and Lead-Free Paint Certification: Submit
manufacturer\'s written certification that all materials are free of
asbestos and lead paint.

## 1.04 QUALITY ASSURANCE

A. Codes and Standards: Comply with provisions of the following codes
and standards, except as otherwise indicated or specified:

AISI "Specification for the Design of Cold-Formed Steel Structural
Members"

AWS D1.1 and D1.3.

SDI "Design Manual for Floor Decks and Roof Decks"

B. Qualification of Field Welders: Welders shall be certified in
accordance with AWS D1.1 and D1.3 within the last twelve (12) months.

C. FM Listing: Provide metal roof deck units which have been evaluated
by Factory Mutual System and are listed in "Factory Mutual Approval
Guide" for "Class 1" fire rated construction and Class I-60 windstorm
ratings.

D. Fire Rated Assemblies: Provide deck units complying with requirements
of Underwriter's Laboratories, Inc. (UL) "Fire Resistance Directory" for
use in any rated design indicated.

## 1.05 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to site at such intervals to ensure uninterrupted
progress of work.

B. Store materials to permit easy access for inspection and
identification. Keep deck panels off ground using pallets, skids,
platforms or other supports.

C. Protect steel deck from damage.

D. Store packaged materials in original unbroken package or container.

E. Do not store materials on structure in a manner that might cause
distortion or damage to members or supporting structures.

F. Replace damaged deck panels.

# PART 2 - PRODUCTS

## 2.01 MATERIALS

A. Uncoated (Black) Sheet Steel: Deck panels shall conform to SDI
Publication No. 29, and ASTM A611. See plans for type, size and finish.

1\. Minimum Yield Strength: 33 ksi (230 MPa)

2\. Minimum Thickness: 0.028 in (0.71 mm), unless indicated otherwise.

3\. Grade

a\. Composite Steel Deck: Grades C or D.

b\. Non-Composite Steel Deck: Grades C, D, or E.

c\. Steel Roof Deck: Grades C, D, or E.

B. Galvanized Sheet Steel: Deck panels shall conform to SDI Publication
No. 29, and ASTM A653 Structural Quality. See plans for type, size and
finish.

1\. Minimum Yield Strength: 33 ksi (230 MPa).

2\. Minimum Uncoated Thickness: 0.028 in (0.71 mm), unless indicated
otherwise.

3\. Galvanization: Conform to ASTM A924 (replaced ASTM A525) with a
minimum coating class of G60 as defined in ASTM A653.

C. Miscellaneous Finishes

1\. Shop Primer: Manufacturer's baked on, lead-free and chromate-free,
rust inhibitive primer, conforming to performance requirements of FS
TT-P-664.

2\. Galvanized Repair Paint: Comply with requirements of MIL P-21035B,
Type I or II.

3\. Concrete Topping: Unless indicated otherwise, all deck to receive
concrete shall be galvanized.

## 2.02 ACCESSORIES

A. General: Provide accessory materials for steel deck that comply with
requirements indicated and recommendations of the steel deck
manufacturer.

B. Column Closures, End Closures, and Z-Closures: Steel sheet, of same
material and thickness as deck panels, unless indicated otherwise on the
Contract drawings.

C. Hanger Tabs: Manufacturer's standard hanger tabs for floor deck
installation, where indicated on the Contract drawings.

D. Cover Plates: Fabricate covers for abutting deck ends, of same
material and gage as deck units, in matching profile, and not less than
six (6) inches (152 mm) wide.

E. Pour Stops: Shall be adequate to support concrete and any
construction loads.

F. Filler Sheets and Girder Fillers: Fabricate of same material, gage
and profile, as deck units, to complete horizontal closure.

G. Rubber Closures (Top and Underside): Manufacturer's standard
synthetic rubber to match deck profile.

H. Cant Strips and Eave Plates: Fabricate of same material and gage as
deck units, with flange for attachment and of dimensions as indicated on
Contract drawings.

I. Roof Sump Pan: Fabricate of not less than 0.071 inch (1.80 mm) thick
galvanized steel, with flat bottom and sloped sides, recessed 1-1/2
inches (38 mm) below deck surface, with bearing flange not less than
three (3) inches (76 mm) wide, and with all joints sealed watertight.

J. Miscellaneous Roof Deck Accessories: Steel sheet, minimum 0.0359-inch
(0.91 mm) thick ridge and valley plates, finish strips, and reinforcing
channels, of same materials as roof deck.

K. Fasteners: Manufacturer's standard galvanized hardened steel,
self-tapping.

L. Weld Washers: Manufacturer's standard uncoated steel sheet weld
washers, minimum thickness of 0.056 in. (1.5 mm) with a minimum 3/8-inch
(9.5 mm) diameter hole.

## 2.03 FABRICATION

A. General: Fabricate deck panels conforming to SDI Publication No. 29
and the requirements of this specification.

1\. Deck units shall be selected to provide the load capacities as
indicated on the Contract drawings, and as determined using the SDI
construction loading criteria.

2\. Deck shall span three or more supports, unless indicated otherwise.

B. Roof Deck Units: Provide deck panels without top-flange stiffening
grooves conforming to SDI specifications, of thickness and depth as
indicated on the Contract drawings.

# PART 3 - EXECUTION

## 3.01 EXAMINATION

A. Review all discipline drawings prior to deck installation to
determine the locations of deck penetrations that will require openings.
Inform the SDR or any openings that will require steel frames that are
not shown on the structural drawings.

B. All edge angles shall be in place with proper attachment prior to
installation of metal deck. All roof and floor opening frames shall be
installed prior to deck installation.

C. Examine field conditions and substrates to receive metal decking, and
verify that existing conditions are acceptable before commencing
installation.

## 3.02 PREPARATION

A. Do not place decking on supporting concrete structures until concrete
is fully cured and dry.

B. Locate deck bundles to prevent overloading of structural members.

C. Do not use floor deck units for storage or as working platforms until
final connections have been made.

## 3.03 INSTALLATION

A. General: Install deck units and accessories in compliance with the
final shop drawings, manufacturer's recommendations, SDI Specifications,
and requirements of this specification.

1\. Fasten deck units to supports promptly after placement and
alignment.

2\. Do not leave placed sheet unattached at end of working day.

B. Bearing: Install deck ends over framing supports with minimum end
bearing of the following; align and level deck units.

1\. Non-Steel Support: 6 inches (152 mm)

2\. Steel Support: 3 inches (76 mm)

C. Placement

1\. Place deck units flat and square, secure to framing without
excessive warp or deflection.

2\. Place deck units in straight alignment for entire length of run.

3\. Place deck units to permit proper attachment to perimeter deck
angle. Deck shall be fully supported at all perimeter edges.

Provide steel filler fabricated of same material as perimeter deck angle
in required size and shape to provide full structural support.

4\. Place deck units on supporting steel framework and adjust to final
position with ends accurately aligned and bearing on supporting members
before being permanently fastened. Do not stretch or contract side lap
interlocks.

5\. Cut and neatly fit deck units and accessories around other work
projecting through or adjacent to the decking, as shown.

D. End Laps: Lap ends of deck units a minimum of two inches (51 mm) over
supports.

1\. End laps may be staggered or on a continuous line.

2\. Butt ends only where laps would be more than two (2) layers thick or
otherwise unable to be lapped and weld each panel at its ends with the
specified pattern.

3\. Where deck slopes more than 1/2 inch per foot, start placement of
deck units and ridge and valley plates at low end and lap ends shingle
fashion with high side over low side.

E. Butt Ends: Butt ends of deck units at stud shear connectors.

1\. Stud shear connectors may not be welded through more than one
thickness of deck.

2\. Tape butted ends of deck units to close gaps of 1/8 inch (3.18 mm)
or less.

F. Openings: Reinforce openings greater than the width between deck
flutes made by other trades, as indicated on the Contract Drawings.

1\. Reinforce openings less than 15 inches (381 mm) with flat steel
sheet of the same quality as the deck units, thickness of not less than
0.0358 (0.91 mm).

Place steel sheet over opening and fusion weld to the top surface of the
deck, in accordance with the Contract Drawings and this specification.

2\. Reinforce openings greater than 15 inches (381 mm) with angles or
channels of A36 steel framing around the opening to the adjacent deck
supports in accordance, and adequate to support the loads that would
normally be carried by the deck where the opening has occurred.

Weld or mechanically fasten the deck to the frame in accordance with the
Contract Drawings and this specification.

G. Provide additional metal reinforcement as shown on the Contract
Drawings and as required for strength, continuity of decking and support
of other work shown.

H. Install closure strips as shown on the Contract Drawings and as
recommended by the manufacturer to provide a complete installation.

Where joist ends terminate on a shear wall and the deck does not contact
the wall, provide metal closure strips from deck to the wall between the
joists.

## 3.04 ANCHORAGE

A. General: Fasten deck units to supporting members including perimeter
support steel and/or bearing walls by either welding or by mechanical
fastening, immediately after alignment. Comply with the requirements of
SDI.

1\. Comply with AWS D1.1 and D1.3 for requirements and procedures for
welding.

2\. Care shall be exercised in the selection of electrodes and amperages
to provide positive welds and to prevent burn through of the supporting
members. If supporting membrane do become cut during deck welding, the
Contractor shall repair or replace the member at no cost to Sandia
National Laboratories (SNL).

B. Weld Spacing: Weld edge ribs of panels at each support. Space welds
as follows:

1\. Floor Deck: Average of 12 inches (305 mm) apart, but not more than
18 inches (457 mm).

2\. Roof Deck: Maximum 12 inches (305 mm) apart.

C. Side Lap and Perimeter Edge Attachment: Fasten side laps and
perimeter edges of units between supports at intervals not exceeding 36
inches (914 mm) on center by welding or mechanical fasteners.

Deck units with spans greater than 5 feet (1.5 m) shall have side laps
and perimeter edges at perimeter support steel fastened at midspan or
36-inch (914 mm) intervals, whichever is smaller, or as shown on the
Contract drawings.

## 3.05 CLEANING AND TOUCH-UP

A. Clear debris from deck before floor or roof substrate is placed.

B. Provide cleaning and touch-up painting of field welds, abraded areas
and rust spots, as required for all exposed areas after erection and
before proceeding with field painting.

END OF SECTION