DRAWING_SPECIFICATION_25Q2603.pdf

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SPECIFICATION AND DRAWING FOR

MEZZANINE AND STAIR TOWER

AS SHOWN Orig

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Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

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Y:\2301-3237 S8G MU BLDG 880 (New)\Drawing\PSNS Mezz and Stair tower.dft

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N/A N/A N/A Decimals:

X.X = ±0.13

X.XX = ±0.025

X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

1. General

1.1. Related Work

1.1.1. Vendor shall provide a mezzanine, stair tower, and bolt-on structure to span gap between stair tower and mezzanine, per this specification and drawing.

1.1.2. The mezzanine and stair tower are to be installed on an existing concrete slab area, that is smooth and level. Installation will be performed by purchaser (PSNS)

1.2. System Description

1.2.1. This specification is intended to define general requirements that apply to suitable mezzanine and stair tower design. The mezzanine and stair tower described will be a free standing, custom-engineered system.

1.2.2. Mezzanine and stair tower must be easy to assemble and dissemble for ease of relocation with the use of hand tools.

1.2.3. Deflection criteria shall be L/360. The deflection due to live load of structural members supporting floors shall not exceed 1/360 of the span.

1.2.4. Drift (lateral deflection) shall be limited to that allowable by the 2018 IBC.

1.2.5. The structural design shall at a minimum 5 psf Collateral Load in addition to the dead weight of the mezzanine structure itself.

1.3. Reference/Code

1.3.1. The codes and specifications listed below will be referenced in the design and fabrication of the mezzanine and stair system.

2018 IBC

1997 UBC

1999 BOCA

1999 SBCCI

2015 29-CFR-1910 (OSHA)

ICBO No. 4627 AISC (13th Edition)

AISC-SJ1

ASTM A500-GRADE B

ASTM A513-TYPE 1

ASTM A325

ASTM A36

ASTM A992

29 CFR 1915

NEC

NFPA 101

1.3.2. : Definitions

1.3.2.1. The subsequent definitions give meaning to the terms listed above and others used in this specification.

1.3.2.1.1. IBC – International Building Code

1.3.2.1.2. UBC – Uniform Building Code

1.3.2.1.3. BOCA – Building Officials and Code Administrators

1.3.2.1.4. SBCCI – Southern Building Code Congress International Incorporated

1.3.2.1.5. OSHA – Occupational Safety and Health Administration

1.3.2.1.6. ICBO – International Conference of Building Officials

1.3.2.1.7. AISC – American Institute of Steel Construction

1.3.2.1.8. AISC-SJ1 – American Institute of Steel Construction – Steel Joist Institute

1.3.2.1.9. ASTM – American Standards and Testing Methods

1.3.2.1.10. AWS – American Welding Society

1.3.2.1.11. Dead Load – The allowance made in the load capacity of the mezzanine to account for the weight of the mezzanine structure.

1.3.2.1.12. Collateral Load – The additional dead loads other then the weight of the structure and decking materials such as ceilings, sprinklers and mechanical and electrical systems.

1.3.2.1.13. Live Load – The maximum loading that the end user may safely place on the mezzanine. Typically, live loads range from 50 PSF. to 250 PSF. Live load is a requirement specified by the end user.

1.3.2.1.14. Lateral Load – The force that acts horizontally on the structure causing the mezzanine to sway. All structures shall be designed for some amount of lateral loading. The end user must specify location or seismic zone.

1.3.2.1.15. Lateral Deflection (Drift) – The amount that the mezzanine will sway as a result of subjecting it to a lateral load.

1.3.2.1.16. 29 CFR -- Code of Federal Regulations

1.3.2.1.17. NEC -- National Electric Code 70E

1.3.3. NFPA --National Fire Protection AssociationQuality Assurance

1.3.3.1. The system shall be designed under the direct supervision of a professional engineer experienced in the design of mezzanines and stair towers, in accordance with specifications and national model building codes.

1.3.4. Warranty

1.3.4.1. The manufacturer will warrant the mezzanine and stair tower, as specified under the simplified acquisition procedures.

1.3.5. Approve Manufacturer

1.3.5.1. Manufacturers shall submit sufficient information to demonstrate compliance with design and performance requirements specified herein and with a minimum of 15 years experience in the design and fabrication of custom steel structural systems

2. Manufacturer Requirements.

2.1. General

2.1.1. The mezzanine and stair tower shall be a custom engineered, freestanding structure. Designed to be in compliance with current IBC code requirements. The mezzanine shall have a minimum clearance above and below of 84”. No “X” bracing or attaching to the building is acceptable.

Items not specifically covered by this specification shall be governed by local codes.

2.2. Materials

2.2.1. Beam-to-Column Connections:

2.2.1.1. Beam to column connections shall be capable of transferring bending moments and must be shown to have adequate capacity to insure structural stability without contribution of base plate connection.

2.2.1.2. Typical connection will consist of structural tee sections and gusseted seat angles, factory welded to columns. The connection brackets shall be positioned so that the shear center of the support beams coincides with that of the column. Acceptable connection designs shall be as shown in the AISC manual under “Suggested Details – Structural Tubing and Pipe – Beam to Column Connections. The vertical position of the structural tee section shall be positioned to provide a dependable and known moment capacity intermediate in degree between the rigidity of a Type 1 and the flexibility of a Type 2 connection as defined in the General Provisions of the AISC manual. This Type 3 “Semi-Rigid” connection will provide the required lateral support for mezzanines in most locations. A Type 3 with knee brace connection will be furnished for mezzanines in locations where the seismic load requires such a fully restrained connection.

2.2.2. Beam-to Beam Connections: The beam reaction shall be transferred to the support by means of bolting the purlin to a structural angle that is factory welded to the main support girder. This single-angle Type 2 “Simple - Framing” connection shall be welded in the factory in the form of an “L” to provide the necessary flexibility as described in the AISC manual.

2.2.3. Framing: All framing shall be wide flange beam framing. Structural support beams shall be sized to satisfy the structural specifications. The chemistry will equal or exceed that of ASTM A992 or A572 requirements. The support beams shall be constructed from hot rolled, wide flange shapes with a minimum tensile yield strength of 50,000 psi. Beams framing into columns shall have a minimum flange width of 4”. Cold-formed “C” channels are not acceptable.

2.2.4. Base Plate Connections: Base plate shall be fully welded around the entire perimeter of the mezzanine column. Base plates as a standard shall be centered on the column to facilitate a uniform transfer of axial load to the foundation. Centered base plates will also contribute to reducing sway and adding to the lateral stability of the structure.

2.2.5. Columns: Structural support columns shall be sized to satisfy the structural specifications. The chemistry will equal or exceed that of ASTM A500-Grade B requirements. The column section will be of square tube profile, since it has equal strength in both of the principle axis and can facilitate a high strength beam-to-column connection. The minimum diameter size of the square tube will be 5" x 5”. NO INTERNAL COLUMNS.

2.2.6. Stair: Stair assembly will have treads factory welded to stringers. Stair width shall be 36” (Minimum). Treads will be designed such that the openings between treads is less than 4 inches creating a closed design. Maximum rise per tread shall not exceed 7”. Minimum run per tread shall not be less than 11”. Stair shall maintain a minimum headroom clearance of 6’-8”. Stringer and tread components shall have a chemistry, which equals or exceeds that of ASTM A36 requirements. The stair stringers will be a minimum of MC10x8.4. The treads will be 36" (minimum) open bar grate w/ checker plate nosing and open risers.

2.2.6.1. The minimum width clear of all obstructions, except projections not more than 4 1⁄2 in.

(114 mm) at or below handrail height on each side, shall be no less than 28 in

2.2.7. Guardrail: Guardrail will be a 42” high top rail and 21” high mid rail design and maintain a minimum clearance between rails. All railing shall have a minimum of a 4” high kickplate.

Guardrail shall be assembled at the factory to be comprised as a welded, one-piece assembly.

The guardrail shall fasten directly to the mezzanine deck to achieve maximum strength and rigidity. The chemistry will equal or exceed that of ASTM A513-TYPE 1 requirements. All rails will be1 ½” square tubing. Guardrails to be surfaced mounted to the deck surface without the intrusion of columns protruding through the deck surface. All guardrails shall be fastened to the deck surface. Guardrail is required on all stairs and mezzanine outer perimeter.

2.2.7.1. Vendor provide a 6’-0 double swing gate at the Back end of the mezzanine level.

2.2.8. Stair Handrail: Handrail on stairs will be a welded, one-piece assembly. Stair handrails will have end returns that continue horizontally for 12” past the rear of the top tread and nose of the bottom tread on outer side of stairs. Handrail on the internal side of stair shall be continuous. Handrail will be provided at both sides of the stair. Guardrail shall fasten to the outside of the stringers to facilitate a plumb rail without the use of any shims. Handrail and Guardrail shall be free of any sharp edges or protrusions. Ends of handrail shall be designed to avoid hooking on clothing and therefore avoid the possibility of that encouraging an accident. Mezzanine stairs are furnished with handrails and guardrails to comply with the NPFA 101.

2.2.9. Landing: Depth of landing will not be less than the width of the stairs.

2.2.10. Decking Fascia: The entire perimeter of the mezzanine will be enclosed with fascia to give the structure a finished appearance. (No Fascia provided if decking is bar grate)

2.2.11. Paint/Coatings:

2.2.11.1. The surface of the steel will be cleaned of rust and dirt that will impede the adhesion of the paint.

2.2.11.2. All components will be coated with a zinc coating (hot dip galvanized) finish, unless otherwise specified. Apply a hot dipped zinc coating conforming to ASTM A123, unless otherwise noted. The minimum acceptable weight of coating shall be 1.25 ounces per square foot of surface when determined in accordance with ASTM A90. Components shall be hot dip galvanized only after all cutting and welding has been completed.

2.2.12. Decking: All decking shall be bar grating.

2.2.12.1. Bar Grating will be a minimum of 1” x 1/8” bearing bars, type 19W4. All bar grate manufacturing capacity ratings must be corrected to satisfy L/360 deflection criteria.

Attachment to the structure shall be through a bar grate manufacturers saddle clip and Tek 5 fastener or equivalent

2.3. Fabrication

2.3.1. Fabrication of materials will comply with dimensions, profiles and gauges shown on the approval drawings.

2.3.2. Manufacturing to be performed by a U.S. company using AWS certified welders.

2.3.3. System design to be performed by a degreed structural engineer. Design performed by technicians through the use of charts is unacceptable.

2.3.4. All design and analysis must be done under the direct supervision of a Professional Engineer.

Professional Engineering seals and calculations can be provided for any state, but must be specified during the bid process.

2.3.5. Any exceptions taken to this specification must be submitted in writing with the proposal package.

In addition to listing the exceptions, it shall be explained how deviating from this specification results in a superior mezzanine design for the end user.

3. Design Criteria and Description The mezzanine and stair tower structure will be designed in conformance with the International Building Code (2018 IBC) using the loading capacity and deflection criteria specified below:

Mezzanine Description:

Overall Dimensions: ................................................................ 16’-0" W x 30’-8" L Liveload / Deadload: ............................................................... 125 PSF / 15 PSF Est. Max. Column Base Plate Pressure: ................................. 45,000 Lbs.

Max. Deck Support Centers: ................................................... 40 7/8" Height to Top of Decks: ........................................................... 104 ¾” IBC Seismic Design: ................................................................ Category "D" Deflection Criteria: ................................................................... L/360 Guardrail with Kick Plate: ........................................................ 164 Lineal Feet (Guardrails will be a 2 rail design, 42" in height, and be assembled at the factory as a welded, one-piece assembly) Deck Type: .............................................................................. 1" x 1/8" 19W4 Bar Grate Max. Point load on deck: ......................................................... 371 Lbs.

Max. Wheel load on deck: ....................................................... 0 Lbs.

Color: ...................................................................................... All components: HD Galvanized coating

Stair Tower Description:

Overall Dimensions: ................................................................ 9’-0” Width x 18’-0” (min) Length Landing Live load / Dead load: ................................................ 100 PSF / 15 PSF Stairs Live load: ....................................................................... 100 PSF Stairs: ...................................................................................... 36" wide open bar grate treads w/ checker plate ................................................................................................. nosing and open risers Height to Top of Main Landing Decks: .................................... 104 ¾”, 242 ¾” IBC Seismic Design: ................................................................ Category "D" Deflection Criteria: ................................................................... L/360 Guardrail with Kick Plate: ........................................................ Around all landings (Guardrails will be a 2 rail design, 42" in height, and be assembled at the factory as a welded, one-piece assembly) Deck Type: .............................................................................. 1" x 1/8" 19W4 Bar Grate Max. Point load on deck: ......................................................... 371 Lbs.

Max. Wheel load on deck: ....................................................... 0 Lbs.

Color: ...................................................................................... All components: HD Galvanized coating.

Note #1: The inside stair handrail only will be a continuous section of rail between stairs. The outside stair handrail will return the deck surface at each level.

Note #2: The stair assembly will have treads factory welded to the stringers. Stair guardrails will each be welded, one-piece assemblies. Stair guardrails will be 42" in height with the stair handrail at 34" in height.

IMPORTANT NOTES:

1. The mezzanine will be designed with a 5 PSF Collateral Load, unless specified otherwise above. Collateral loads are additional dead loads other than the weight of the structure and decking materials such as ceilings, sprinklers and mechanical and electrical systems.

2. It is important to note that compliance to ADA, egress and fire codes are application driven. Consulting with local building officials and providing the manufacturer with their specific written specifications is strongly recommended. Manufacturer accepts no responsibility and /or liability for obtaining or maintaining any local, regional or national building permits, inspections or documents that may be required.

3. The structural capacity of the foundation is to be determined by PSNS using accepted sound engineering practices.

4. The true and level conditions of the foundation floor surface is the responsibility of PSNS. Structural grouting of column base plates is the recommended method of compensating for uneven foundation floor.

Shimming alone is NOT recommended!

4. SUBMITTALS

4.2. Approval Drawings as Shop Drawings

4.2.1. Building floor plan.

4.2.2. Foundation plan & panel base section.

4.2.3. Sheeting and trim color schedule.

4.2.4. Elevations with location and description of all building accessories including but not limited to, doors, windows and ventilations items.

4.2.5. Building cross-section.

4.2.6. Structural design certification stamped and signed by a structural engineer licensed to practice in the state of Washington.

4.2.7. Drawings stamped and signed by a structural engineer licensed to practice in the state of Washington.

4.3. Assembly Drawings

4.3.1. All information included on “Approved-Drawings”.

4.3.2. Material and parts lists, structural framing details, connections, and manufacturer's recommended installation procedures.

4.3.3. Details of all structural steel connections.

4.3.4. Installation instructions for all accessories.

4.4. Warranty

4.4.1. The manufacturer will warrant the mezzanine and stair tower as specified under the simplified acquisition procedures.

5. PRODUCTS

5.2. Manufacturer Requirements

5.2.1. Manufacturers shall submit sufficient information to demonstrate compliance with design and performance requirements.

5.3. Structural Framing

5.3.1. Channel Shapes Less than 3”: Formed from 11 gauge Hot-Rolled ASTM A-1011 Sheets with 50,000 PSI Yield

5.3.2. Channel Shapes 3” & Greater: Minimum ASTM A36

5.3.3. Anchor Bolts: Manufacturer shall provide the required epoxy anchors to secure the the mezzanine and stair tower to existing concrete foundation.

5.4. Connection Bolts:

½” diameter and below: SAE J4269 Gr. 5, or ASTM A325 5/8” diameter and larger: ASTM A325

6. EXECUTION

6.2. INSTALLATION

6.2.1. Installation shall be by purchaser (PSNS) in accordance with manufacturer’s instructions and approved submittals.

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SPECIFICATION AND DRAWING FOR

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Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

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X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

ISOMETRIC VIEW 8A

LOCATION OF VENDOR PROVIDED MEZZANINE

AND EGRESS STAIR TOWER

EXISTING STRUCTURE

ABOVE VENDOR PROVIDED

MEZZANINE.

EGRESS STAIR TOWER

PROVIDED BY VENDOR MEZZANINE WITH HANDRAILS

PROVIDED BY VENDOR

FRONT

LEFT

RIGHT

BACK

RAILING NEEDS TO CONTINUE

DUE TO CLEARANCE ISSUES

NEXT TO THE WALL.

VENDOR PROVIDE BOLT-ON STRUCTURE, WITH HANDRAIL,

TO SPAN THE GAP BETWEEN THE VENDOR PROVIDED

STAIRWAY TO THE VENDOR PROVIDED MEZZZANINE.

6'-0" DOUBLE SWING GATE

ON THIS END OF MEZZANINE

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SPECIFICATION AND DRAWING FOR

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Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

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X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

MEZZANINE WITH HANDRAILS

PROVIDED BY VENDOR

REMOVABLE BOLT-IN SECTION

CENTERED OVER SUPPORT STAND

FRONT

LEFT

RIGHT

BACK

EXISTING STRUCTURE

ABOVE VENDOR PROVIDED

MEZZANINE.

19'-0"

9'-0"

23A

23A

EGRESS STAIR TOWER

PROVIDED BY VENDOR

EMERGENCY EXIT DOOR

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PLAN VIEW

LOCATION OF VENDOR PROVIDED MEZZANINE

AND EGRESS STAIR TOWER

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Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

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X.X = ±0.13

X.XX = ±0.025

X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

RIGHT ELEVATION VIEW 18A

LOCATION OF VENDOR PROVIDED MEZZANINE

AND EGRESS STAIR TOWER

42"

38A 38A

43A 43A

MEZZANINE WITH HANDRAILS

PROVIDED BY VENDOR

11'-6"

88 3/4

8'-8 3/4" 104 3/4

EXISTING STRUCTURE

ABOVE VENDOR PROVIDED

MEZZANINE.

20'-2 3/4" 242 3/4

EGRESS STAIR TOWER

PROVIDED BY VENDOR

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Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

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X.XX = ±0.025

X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

MEZZANINE WITH HANDRAILS

PROVIDED BY VENDOR

EGRESS STAIR TOWER

PROVIDED BY VENDOR

8'-

3/ 4"

3/

SECTION 23A-23A (18A)

LOCATION OF VENDOR PROVIDED MEZZANINE

AND EGRESS STAIR TOWER

MIN CLEARANCE

EXISTING STRUCTURE

ABOVE VENDOR PROVIDED

MEZZANINE.

VENDOR PROVIDE BOLT-ON STRUCTURE, WITH HANDRAIL,

TO SPAN THE GAP BETWEEN THE VENDOR PROVIDED

STAIRWAY TO THE VENDOR PROVIDED MEZZZANINE.

'-2

/4

3/

84"

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SPECIFICATION AND DRAWING FOR

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Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

TITLE

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X.X = ±0.13

X.XX = ±0.025

X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

FRONT ELEVATION VIEW 28A

LOCATION OF VENDOR PROVIDED MEZZANINE

AND EGRESS STAIR TOWER

MEZZANINE WITH HANDRAILS

PROVIDED BY VENDOR

EGRESS STAIR TOWER

PROVIDED BY VENDOR

EXISTING STRUCTURE

ABOVE VENDOR PROVIDED

MEZZANINE.

VENDOR PROVIDE BOLT-ON STRUCTURE, WITH HANDRAIL,

TO SPAN THE GAP BETWEEN THE VENDOR PROVIDED

STAIRWAY TO THE VENDOR PROVIDED MEZZZANINE.

8'-8 3/4"

20'-2 3/4"

MIN CLEARANCE

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SPECIFICATION AND DRAWING FOR

MEZZANINE AND STAIR TOWER

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Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

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N/A N/A N/A Decimals:

X.X = ±0.13

X.XX = ±0.025

X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

LEFT ELEVATION VIEW 33A

LOCATION OF VENDOR PROVIDED MEZZANINE

AND EGRESS STAIR TOWER

MEZZANINE WITH HANDRAILS

PROVIDED BY VENDOR

EGRESS STAIR TOWER

PROVIDED BY VENDOR

EXISTING STRUCTURE

ABOVE VENDOR PROVIDED

MEZZANINE.

8'-8 3/4"

20'-2 3/4"

MIN CLEARANCE

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SPECIFICATION AND DRAWING FOR

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IR

T

O W

E R

N /A

Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

TITLE

SCALE

FSR

REV.

D W

G . N

O

T

IT

LE

R

E V

S

H E

E T

RF #

D

C

B

A

N/A N/A N/A Decimals:

X.X = ±0.13

X.XX = ±0.025

X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

40A 40A

SECTION 40A-40A

SUPPORT COLUMN BASE

FOR EXISTING STRUCTURE

TYP 6 PLCS

2 3/4"

SUPPORT COLUMNS

AND BASE PADS FOR

EXISTING STRUCTURE

SUPPORT COLUMNS

AND BASE PADS FOR

EXISTING STRUCTURE

SUPPORT COLUMNS

AND BASE PADS FOR

EXISTING STRUCTURE SUPPORT COLUMNS

AND BASE PADS FOR

EXISTING STRUCTURE

EGRESS STAIR TOWER

PROVIDED BY VENDOR

VENDOR PROVIDED MEZZANINE

SUPPORT COLUMNS

EMERGENCY EXIT

EMERGENCY EGRESS PATH

FROM STAIR TOWER

SECTION 38A-38A (18A)

EXISTING INTERFERENCES FOR VENDOR PROVIDED

MEZZANINE AND EGRESS STAIR TOWER

B

A

Sheet 9 of 10

SPECIFICATION AND DRAWING FOR

MEZZANINE AND STAIR TOWER

AS SHOWN Orig

O rig

S P

E C

IF

IC

A

TI

O N

A N

D D

R A

W

IN

G F

O R

M E

ZZ

A

N

IN

E A

N D

S

TA

IR

T

O W

E R

N /A

Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

TITLE

SCALE

FSR

REV.

D W

G . N

O

T

IT

LE

R

E V

S

H E

E T

RF #

D

C

B

A

N/A N/A N/A Decimals:

X.X = ±0.13

X.XX = ±0.025

X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

EGRESS STAIR TOWER

PROVIDED BY VENDOR

REMOVABLE BOLT-IN SECTION

FRONT

LEFT

RIGHT

BACK

REMOVABLE HANDRAIL SECTION

TO FACILITATE FORKLIFT LOADING.

6' TO 8' WIDE OPENING

VENDOR PROVIDED BOLT-ON STRUCTURE, WITH HANDRAIL,

TO SPAN THE GAP BETWEEN THE VENDOR PROVIDED

STAIRWAY TO THE VENDOR PROVIDED MEZZZANINE.

MEZZANINE WITH HANDRAILS

PROVIDED BY VENDOR

16'-0"

30'-8"

9'-0"

SECTION 43A-43A (18A)

MEZZANINE LEVEL AT 242 3/4"

THRU CUTOUT IN GRATING, WITH KICKPLATE,

TO SUPPORT INSTALLATION OF CROSS BRACING

TO EXISTING STRUCTURE WHICH WILL CONNECT

ON THE CENTERLINE OF THE EXISTING STRUCTURE

SUPPORT COLUMNS.

THRU CUTOUT IN GRATING, WITH KICKPLATE,

TO SUPPORT INSTALLATION OF CROSS BRACING

TO EXISTING STRUCTURE WHICH WILL CONNECT

ON THE CENTERLINE OF THE EXISTING STRUCTURE

SUPPORT COLUMNS.

B

A

Sheet 10 of 10

SPECIFICATION AND DRAWING FOR

MEZZANINE AND STAIR TOWER

AS SHOWN Orig

O rig

S P

E C

IF

IC

A

TI

O N

A N

D D

R A

W

IN

G F

O R

M E

ZZ

A

N

IN

E A

N D

S

TA

IR

T

O W

E R

N /A

Unless otherwise specified, dimensions are in inches.

Drawing dimensional and geometric tolerances per ASME Y14.5M-1994

NO DEVIATIONS SHALL BE MADE

WITHOUT CODE 2370 APPROVAL

PUGET SOUND NAVAL SHIPYARD

CODE 2370 -- ENGINEERING DIVISION

DRAWING NO.

TITLE

SCALE

FSR

REV.

D W

G . N

O

T

IT

LE

R

E V

S

H E

E T

RF #

D

C

B

A

N/A N/A N/A Decimals:

X.X = ±0.13

X.XX = ±0.025

X.XXX = ±0.003

X.XXXX = ±0.0005

Fractions = ±1/16 < 36" Fractions = ±1/8 > 36" Angles = ±0.5°

'-0

30'-8"

8'- 0"

9'-6"

9'-0" MAX

36"

6"

36"

15'-0" 8'-10"

8'-10"

'-8

RAILING NEEDS TO CONTINUE

DUE TO CLEARANCE ISSUES

NEXT TO THE WALL.

EXISTING STRUCTURE

SUPPORT COLUMNS

(TS 8" x 8"), 6 PLCS

9'-6"

3" 6"

3"

VENDOR PROVIDE BOLT-ON STRUCTURE, WITH HANDRAIL,

TO SPAN THE GAP BETWEEN THE VENDOR PROVIDED

STAIRWAY TO THE VENDOR PROVIDED MEZZZANINE.

28"

UP

UP

104 3/4" LEVEL

242 3/4" LEVEL

173 3/4"

UP

UP

6'-

0" D

OU

BL

E

SW

IN

G

GA

TE

1 5/8"

PLAN VIEW 48A

LOCATION OF VENDOR PROVIDED MEZZANINE

AND EGRESS STAIR TOWER

THRU CUTOUT IN GRATING, WITH KICKPLATE,

TO SUPPORT INSTALLATION OF CROSS BRACING

TO EXISTING STRUCTURE WHICH WILL CONNECT

ON THE CENTERLINE OF THE EXISTING STRUCTURE

SUPPORT COLUMNS.

THRU CUTOUT IN GRATING, WITH KICKPLATE,

TO SUPPORT INSTALLATION OF CROSS BRACING

TO EXISTING STRUCTURE WHICH WILL CONNECT

ON THE CENTERLINE OF THE EXISTING STRUCTURE

SUPPORT COLUMNS.

REMOVABLE BOLT-IN SECTION

CENTERED OVER SUPPORT STAND

STAIR TOWER

FROM LEVEL 104 3/4" TO 242 3/4"