Appendix A Mezzanine.doc

APPENDIX A

FOR

FREESTANDING MEZZANINE SYSTEM

AT

EGLIN AIR FORCE BASE, FL.

AMU BUILDING 1417

CSN: AEG0D0

DATE: 15 JULY 2010

PREPARED BY:

Andrew J. Huser

PROJECT ENGINEER

403 SCMS/GUEC

THIS PAGE LEFT BLANK INTENTIONALLY

Table of Contents

11. SCOPE

1.1. General scope

1.2. Definitions

2. APPLICABLE DOCUMENTS

3. REQUIREMENTS

3.1. System Description

3.2. Characteristics

3.2.1. Performance and Physical characteristics

3.2.1.1. Load capacity

3.2.1.2. Freestanding structure

3.2.1.3. Deflection under load

3.2.1.4. Dimension and clear height

3.2.1.5. Seismic

3.2.1.6. Columns

3.2.1.6.1. Base plates

3.2.1.7. Framing

3.2.1.7.1. Beams

3.2.1.7.2. Joists

3.2.1.7.3. Bridging

3.2.1.8. Decking

3.2.1.8.1. Metal roof deck

3.2.1.8.2. CompositE flooring

3.2.1.9. Stairway systems

3.2.1.9.1. Stair treads

3.2.1.9.2. Stringers

3.2.1.9.3. Railing

3.2.1.9.4. Platforms

3.2.1.10. Mezzanine Railing

3.2.1.11. Kickplate

3.2.1.12. Pallet gate

3.2.1.13. Fire suppression system

3.2.2. Electrical characteristics

3.2.2.1. Lighting

3.2.2.1.1. Fixtures

3.2.2.1.2. On/Off switches

3.2.3. Safety features

3.2.3.1. Capacity markings

3.2.3.2. No-Step markings

3.2.3.3. Safety factor

4. QUALITY CONFORMANCE

4.1. Inspections

4.2. Test

4.3. Certifications

1. SCOPE

1.1. General scope

This appendix establishes the minimum performance, design, fabrication, installation, and test requirements for a mezzanine for the 33rd Fighter Wing, AMU Building 1417 at Eglin Air Force Base, FL. The work shall be completed in accordance with this appendix, the Cover Purchase Description (PD), and Air Force (AF) drawings AEG0D0-01 and AEG0D0-02. This appendix covers all equipment, materials, and labor necessary to complete installation of the system.

1.2. Definitions

Beams - Structural steel supporting member which connect the columns.

Bridging - Steel channels used to provide lateral stability and prevent joists from twisting.

Column - Structural steel that supports beams and joist.

Framing - Consists of beams, joists, and bridging.

Joists - Structural steel member supporting the decking.

2. APPLICABLE DOCUMENTS

Applicable documents shall be in accordance with Section 2 of the Cover PD.

3. REQUIREMENTS

3.1. System Description

The mezzanine shall be located according to AF Drawing AEG0D0-01. The mezzanines shall be used to store small and medium sized items on the mezzanine floor. The mezzanine system shall consist of the following components:

a. Freestanding, structural steel mezzanine with columns, beams, joists, decking, and bridging.

b. Stairs, platforms, handrails, midrails, and kickplates.

c. Lighting.

d. Fire suppression system.

f. Pallet Gate.

g. Vertical Lift (Appendix B)

h. Conduit, wiring, mechanical fasteners, and all other items required to install a functional mezzanine system.

3.2. Characteristics

3.2.1. Performance and Physical characteristics

3.2.1.1. Load capacity

All components of the mezzanine shall be designed to support a minimum capacity of 150 pounds per square foot. The mezzanine shall be capable of sustaining the point loads of the fully loaded shelving units without permanent deflection or deformation.

3.2.1.2. Freestanding structure

The mezzanine shall not be attached to any existing building wall or column and shall not require cross bracing between columns.

3.2.1.2.1. PRE-ENGINEERED

All components of the mezzanine shall be pre-engineered so that on-site welding is eliminated.

3.2.1.3. Deflection under load

No component of the mezzanine shall exhibit deflections greater than the length of the component divided by 360 (L/360) under uniformly loaded conditions.

3.2.1.4. Dimension and clear height

The mezzanine shall be a nominal 40’ wide X 46’ long. The mezzanine shall have a nominal clear height of 10 feet underneath all components of the mezzanine. The top of the decking shall be a maximum of 11 feet above the existing floor.

3.2.1.5. Seismic

The mezzanine shall be designed to withstand forces for a seismic zone 1.

3.2.1.6. Columns

Columns shall be cold formed, structural steel tubing and shall meet or exceed the requirements of ASTM A500, Grade B, FY-46KSI. The columns shall be pre-punched at the top to provide a secure connection to beams and joists. Columns shall be a minimum of 5 inches X 5 inches X 3/16 inch thick. Contractor shall maximize column spacing to best interface with equipment under the mezzanine as shown in AF Drawing AEG0D0-01.

3.2.1.6.1. Base plates

Base plates shall be used under each column to distribute the load. The base plates shall be factory welded to the columns and prepunched to provide a secure connection to the floor. The base plates shall be anchored in accordance with the manufacturers recommended procedure. The base plates shall meet or exceed the requirements of ASTM A36 and shall be a minimum of 10 inches X 10 inches X 5/8 inch. Base plate grout shall be used as required.

3.2.1.7. Framing

Hot rolled structural steel members shall meet or exceed the requirements of ASTM A570. Cold formed structural steel members shall meet or exceed the requirements of ASTM A500 or ASTM A611. Framing shall consist of beams, joists and bridging as defined in 1.2. The framing shall be designed to support the full rated load and the decking.

3.2.1.7.1. Beams

All beams shall be structural steel and shall be prepunched for secure connection to the columns and joists with A325 bolts.

3.2.1.7.2. Joists

All joists shall be structural steel and shall be prepunched for secure connection to the beams with A325 bolts.

3.2.1.7.3. Bridging

Structural steel bridging channels shall be minimum 18 gauge steel.

3.2.1.8. Decking

The decking shall consist of a metal roof deck and composite flooring. The decking shall sustain the load specified in 3.2.1.1.

3.2.1.8.1. Metal roof deck

The metal roof deck shall consist of minimum 20-gauge, type-B roof deck meeting the requirements of ASTM A611, Grade C, or minimum 18-gauge, galvanized, type-B roof deck meeting the requirements of ASTM A446, Grade A. If the 20-gauge, type-B roof deck is used, the bottom of the roof deck shall be painted white and the top shall be painted the same color as the mezzanine structural members or standard gray. The roof deck shall be securely fastened to the framing with plated, self-tapping, steel screws or equivalent method as approved by the COTR.

3.2.1.8.2. CompositE flooring

The composite flooring shall be resindek or Government approved equivalent. ResinDek is manufactured by: Johnson Doppler Lumber, 3320 Llewellyn Ave, Cincinnati, OH , Phone (513) 541-0050, FAX (513) 853-3112. Resindek flooring is a special blend of phenolic resin, wax emulsion, and wood fibers combined under heat and pressure. The flooring shall be minimum 3/4-inch thick. The flooring shall have an exterior sealant. The sealant shall be Acryseal or equivalent. A sealant color chart shall be provided with the shop drawings for selection by the COTR. The flooring sheets shall be tongue and groove on long sides forming an integral surface. The flooring sheets shall be securely fastened to the framing with resindek type drill screws or equivalent. All exposed sides of the composite flooring shall be covered.

3.2.1.9. Stairway systems

One stairway system shall be provided at the location shown on AF Drawing AEG0D0-01. Stairway systems shall include stairs, structural steel stringers, railing, platforms, and all necessary hardware to install the stairways. Stairways shall have an overall width of 36 inches. Stairways shall be designed and constructed in accordance with OSHA 1910.24. Intermediate platforms shall be utilized as required to ensure that the angle of incline does not exceed 40 degrees. Stairway systems shall be painted safety yellow.

3.2.1.9.1. Stair treads

Stairs shall be closed tread type with diamond plate.

3.2.1.9.2. Stringers

Stringers shall meet or exceed the requirements of ASTM A36.

3.2.1.9.3. Railing

Railing shall be provided on the open sides of all exposed stairways and platforms. Rails shall be designed and constructed in accordance with OSHA 1910.23 and shall be of the 3-rail type. The top rail surface shall be between 30-34 inches above the stair tread surface. Railing shall be minimum 1-1/4 inch, schedule 40 steel tubing. All stairs, platforms and mezzanine rail sections shall be joined together with either galvanized fittings or a pre-engineered union. Railing for the stairway shall be bolt connected or factory welded to the stringer such that it is capable of withstanding a load of at least 200 pounds applied in any direction at any point on the top rail.

3.2.1.9.4. Platforms

Platforms shall be diamond plate tread. Platforms, as a minimum, shall be the same width as the stairway and a minimum of 42 inches in length (measured in the direction of travel). Platforms shall be even and level with the mezzanine floor.

3.2.1.10. Mezzanine Railing

Railing shall be provided on all sides of the mezzanine floor. Rails shall be designed and constructed in accordance with OSHA

1910.23 and shall be the 3-rail type. The top rail surface shall be 42-inches above the mezzanine decking. Railing shall be minimum 1-1/2 inch diameter, schedule 40 steel tubing. Rail sections shall be joined together with either galvanized fittings or a pre-engineered union. Railing for the mezzanine shall be bolt-connected to a structural framing beam such that it is capable of withstanding a load of at least 200 pounds applied in any direction at any point on the top rail. Support posts shall be spaced on a maximum of 8 foot centers.

3.2.1.11. Kickplate

A kickplate shall be provided on all sides of the mezzanine and platforms. The kickplate shall be a minimum 4-inches high with no more than 1/4 inch clearance between the floor and the bottom of the kickplate. The kickplate shall be minimum 14 gauge steel and shall be securely fastened to the mezzanine or railings.

3.2.1.12. Pallet gate

A Pallet gate shall be provided at the location shown on AF Drawing AEG0D0-01. The gate shall be used to load/unload material from the mezzanine using a standard forklift. The pallet gate shall be constructed of steel tubing matching the railing and shall provide a minimum opening of 60 inches. The pallet gate shall be the sliding type.

3.2.1.13. Fire suppression system

The Contractor shall design and install a wet-pipe fire suppression system under the mezzanine in accordance with NFPA 13, UFC 3-600-1 Section 6-11 and applicable fire codes at Eglin AFB. All appendices of NFPA 13 will be considered to be a part of the main body of the standard; all "shoulds" will be considered "shalls" in this project. Sprinkler heads and piping shall be located so not to be susceptible to damage or interfere with normal operations under the mezzanine. The clear height specified in 3.2.1.4 shall be maintained. The Contractor shall connect the fire suppression system to the existing system piping at the most economical point permitted by NFPA 13 criteria and approved by the COTR. The actual location of the existing building sprinkler riser tie-ins for the mezzanine sprinkler system can be obtained from the Eglin AFB, Civil Engineering (CE) Office. The Contractor shall perform a test on the existing system to determine flow and pressure characteristics and design a system compatible with the existing system. To allow for future water supply degradation, a 5 psi safety margin shall be provided between the mezzanine sprinkler system demand pressure and water supply pressure at the calculated combined roof-level and mezzanine design flow rate. The proposed sprinkler design, with supporting hydraulic calculations, shall be approved by the COTR prior to initiation of any work on the fabrication or installation of the sprinkler system. Prior to impairing the existing system for connection of the mezzanine sprinkler system, the Contractor shall notify the Base Fire Department. The existing fire suppression system shall not be inoperative for any time longer than that required to make the required connections. The fire suppression design and hydraulic calculations shall be sealed by a licensed registered Professional Engineer.

3.2.2. Electrical characteristics

3.2.2.1. Lighting

The Contractor shall provide fluorescent lighting underneath the mezzanine with a minimum luminance level of 50 foot-candles measured at 30 inches above the floor. Lighting shall be supported by the mezzanine. The Contractor shall run electrical power from the Mechanical/Electrical Room power panels identified on Air Force (AF) Drawing AEG0D0-01.

3.2.2.1.1. Fixtures

Energy efficient T-8 fluorescent lighting fixtures using 4-foot tubes shall be utilized to light the under mezzanine area. Lighting fixture boxes shall not be smaller than 4 inches (octagonal), except where required by fixture configuration and approved by the COTR. Fixtures shall provide rapid start lighting. Fixtures shall not be suspended. Lenses shall be provided for all lights.

3.2.2.1.2. On/Off switches

Four on/off switches shall be located on the mezzanine columns. See AF Drawing AEG0D0-01 for location of switches. Switches shall be located 52 inches +/- 2 inches in height from the floor. Light switches shall be provided with recessed cover plates.

3.2.3. Safety features

3.2.3.1. Capacity markings

Live load capacity metal signs shall be displayed on all sides of the mezzanine in English.

3.2.3.2. No-Step markings

Signs shall be posted on the railings indicating that the rails are not steps. Signs shall be posted on a maximum of 20 foot centers.

3.2.3.3. Safety factor

All vertical members of the mezzanine shall have a minimum safety factor of 1.92 to 1 and all horizontal members shall have a minimum safety factor of 1.67 to 1.

4. QUALITY CONFORMANCE

4.1. Inspections

The system shall be inspected to verify that it meets all the requirements of sections 1, 2, and 3 of this appendix and the Cover Purchase Description. These inspections shall be completed as part of the system checkout test and again as a part of the quality conformance test.

4.2. Test

The following test shall be performed on the system as part of the system checkout test and again as a part of the quality conformance test.

distance from the midpoint of the joist to the floor will be measured in inches and recorded as M2. The deflection shall be calculated by using the following formula:

(M1 - M2) / (Span of joist in inches) = Deflection

If the deflection is greater than (Span of joist in inches)/360 or any permanent deformation has occurred, the mezzanine shall fail the test.

turned on. Test the lighting with a light meter 30 inches from the floor. If the lighting is not a minimum of 50 foot-candles then the system shall fail the test.

4.3. Certifications

The Contractor shall provide certification that the following requirements have been met. All certifications shall be provided in accordance with the Contract Data Requirements List.

MEZZANINE SYSTEM

Offeror:

-R-

Appendix A, Mezzanine System Date: 15 JULY 2010

This questionnaire shall be completed by the Offeror. All entries to this questionnaire shall be typed. The questionnaire will be used to determine the Offeror's understanding of the requirements and acceptability of the proposed equipment. Please attach product literature/cut sheets for all equipment detailed in this questionnaire and attach any exceptions to the Purchase Description Appendix or recommendations/design alternatives as detailed below.

Mezzanine Manufacturer: _______________________________________

Model Number: _________________________________________________

3.2.1.2.

3.2.1.2.1.

Is the mezzanine freestanding?

Are all components pre-engineered so that on site welding is eliminated?

______ feet long X ______ feet wide.

The clear height underneath the mezzanine is ____ feet.

The height of the decking surface above the finished floor is ____ feet.

Are the columns structural steel tubing?

______ inches X ______ inches

3.2.1.8.

3.2.1.8.2.

What type of decking are you proposing? __________________________________________________

What is the brand name of the decking?

What type of composite flooring are you proposing? _________________________________________________

What is the brand name of the exterior sealant? __________________________________________________

Will you provide a sealant color chart ___________

3.2.1.9.

3.2.1.9.1.

How many sets of stairs are you providing? ______

What is the width of the stairs? ______ inches

Will stairs be closed tread with diamond plate? ________________

Are all rail sections, stairs, platforms and mezzanine joined together with either galvanized fittings or a pre-engineered union.

What is the rail type, how many rails:_________

What is the rail type, how many rails:_________

3.2.1.11.

3.2.1.12.

The kickplate is ____ inches high.

The pallet gate is ____ inches wide.

Horizontal members have a minimum safety factor of ______ to ___.

EXCEPTIONS/RECOMMENDATIONS/DESIGN ALTERNATIVES

Attach any exceptions taken to the Purchase Description Appendix. Please outline those concerns in detail. Your exceptions will be reviewed to determine acceptability.

Are exceptions taken?

Number of pages attached: ____________________________________

Attach any recommendations or design alternatives you feel may enhance operation, maintainability, or reduce system cost. Your recommendations and design alternatives will be reviewed to determine acceptability.

Are recommendations/design alternatives attached?

Number of pages attached: ____________________________________

We have read the requirements of the Purchase Description Appendix and will comply with all paragraphs as written, with exceptions taken only to those items indicated on the attached exception sheet.

Offeror's Signature Date

TYPED NAME:

COMPANY NAME:

ADDRESS:

PHONE:

FAX:

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