NPT501- Appendix A - Mezzanine.pdf

APPENDIX A

FOR

MEZZANINE

AT

PITTSBURGH ANGB, PENNSYLVANIA

BUILDING 110

CSN NPT501

December 17, 2025

PREPARED BY:

Josh Payne

JOSH PAYNE

PROJECT ENGINEER

AFLCMC/EZPAE

James Rowland

JAMES ROWLAND

REVIEWER

AFLCMC/EZPAE

FA860426RB011

Attachment 2

Table of Contents

1. GENERAL SCOPE

2. APPLICABLE DOCUMENTS

3. REQUIREMENTS

3.1. SYSTEM DESCRIPTION

3.2. CHARACTERISTICS

3.2.1. CONFIGURATION REQUIREMENTS

3.2.2. STRUCTURE AND INSTALLATION

4. QUALITY ASSURANCE PROVISIONS

4.1. INSPECTION

4.2. TESTS

Pittsburgh ANGB – Appendix A - Page 1

1. GENERAL SCOPE

This appendix establishes the minimum performance, design, fabrication, installation, and test requirements for a mezzanine at Pittsburgh ANGB, Building 110. The work shall be completed in accordance with this appendix, the Cover Purchase Description (PD), and Air Force (AF) Drawing NPT501-01 and NPT501-02. This appendix covers all equipment, materials, and labor necessary to complete installation of the system.

2. APPLICABLE DOCUMENTS

Applicable documents shall be in accordance with Section 2 of the Cover PD as well as ASTM A36, ASTM A446, ASTM A500, ASTM A570, ASTM A611, OSHA 1910.23 and

OSHA 1910.24.

3. REQUIREMENTS

3.1. SYSTEM DESCRIPTION

The mezzanine shall provide an elevated storage space within Building 110 and interface with on site fork lift and pallet jack.

3.2. CHARACTERISTICS

The mezzanine shall conform to the following requirements.

3.2.1. CONFIGURATION REQUIREMENTS

The mezzanine shall be located and configured as shown on AF Drawing NPT501-01.

3.2.2. STRUCTURE AND INSTALLATION

• GENERAL REQUIREMENTS

o Load Capacity: All components capable of supporting a minimum capacity of

125 pounds per square foot (uniformly distributed) without permanent deflection or deformation o Dimension and Clear Height: As shown on AF Drawing NPT501-01 o Freestanding: Not attached to any existing building wall or column and not require cross bracing between columns.

o All components pre-engineered to eliminate on-site welding.

o Designed to withstand seismic forces as specified in the International Building

Code for the Pittsburgh, PA locality and DOD regulation UFC 3-310-04.

o No component deflect greater than the length of the component divided by

360 (L/360) under uniformly loaded conditions

• COLUMNS

o Cold formed, structural steel.

Pittsburgh ANGB – Appendix A - Page 2 o Meet or exceed requirements of ASTM A500, Grade B, FY-46KSI o Pre-punched for connection to beams and joists o Minimum 6-inch by 6-inch x 3/16 inch thick

• BASE PLATES

o Used under each column to distribute load o Factory welded to columns and prepunched for anchors o Anchored in accordance with manufacturers recommended procedures o Meet or exceed ASTM A36 o Minimum 10-inch by 10-inch x 5/8-inch o Grout used in accordance with manufacturers recommended procedures

• FRAMING

o Meet or exceed requirements of ASTM A570 for hot rolled structural steel members o Meet or exceed requirements of ASTM A500 for cold-formed structural steel members o Beams are structural steel and prepunched for secure connection to column and joists with A325 bolts o Joists are structural steel and prepunched for secure connection to beams with A325 bolts o Minimum 18-gauge steel for structural steel bridging channels

• DECKING

o Consist of a metal roof deck and composite flooring with minimum density of

60 pounds per cubic foot o Metal Roof Deck

Galvanized metal roof decking Minimum 20-gauge, type-B roof deck meeting the requirements of

ASTM A611, Grade C; or minimum 18 gauge, type-B roof deck meeting the requirements of ASTM A446, Grade A

Securely fastened to framing with plated, self-tapping, steel screws or equivalent o Composite Flooring Resindek or equivalent Minimum ¾ inch thick Exterior sealant used, Acryseal or equivalent Tongue and groove on long sides forming an integral surface Securely fastened to framing with manufacturer’s recommended installation procedures

• STAIRS

o Provided at the location(s) shown on AF Drawing NPT501-01

Pittsburgh ANGB – Appendix A - Page 3 o Include stairs, structural steel stringers, railings, platforms, and all necessary hardware for installation o Designed in accordance with OSHA 1910.24 o 36 inches wide o Platforms utilized as necessary to ensure incline does not exceed 40 degrees o Closed tread with diamond plate o Stringers meets or exceed requirements of ASTM A36 o Painted safety yellow o Stair Railing:

Provided on the open sides of all exposed stairways and platforms Designed in accordance with OSHA 1910.23 Either 2-rail or 3-rail type Top rail between 30-34 inches above stair tread Minimum 1-1/4 inch, schedule 40 steel tubing Joined with galvanized fittings or pre-engineered union Bolt connected or factory welded to the stringer Capable of withstanding minimum 200 pound load applied in any direction at any point on the top rail

• MEZZANINE RAILING

o Provided on the open sides of all exposed mezzanine floor o Designed in accordance with OSHA 1910.23 o Either 2-rail or 3-rail type o Top rail 42 inches above mezzanine decking o Minimum 1-1/2 inch, schedule 40 steel tubing o Joined with galvanized fittings or pre-engineered union o Bolt connected to structural framing beam o Capable of withstanding minimum 200 pound load applied in any direction at any point on the top rail o Support posts spaced on maximum 8-foot centers

• KICKPLATE

o Provided on the open sides of the mezzanine and platforms o Minimum 4-inches high o Maximum ¼-inch clearance between floor and bottom of kickplate o Minimum 14 gauge steel o Securely fastened to mezzanine or railings

• PALLET GATES

o Provided as shown on AF Drawing NPT501-01 o Constructed of steel tubing matching the railing o Manual sliding gate

Provide minimum opening of 72 inches

• FIRE SUPPRESSION SYSTEM

Pittsburgh ANGB – Appendix A - Page 4 o Wet-pipe sprinkler system installed in accordance with NFPA guidelines and applicable fire codes at Pittsburgh ANGB.

o Contractor shall perform a flow-test to ensure the existing building fire suppression system has sufficient flow for the new system.

o Fire suppression design and hydraulic calculations shall be sealed by a qualified registered Professional Engineer in Pennsylvania and provided to the COTR for approval.

o Contractor shall notify the Base Fire Department before connecting the mezzanine fire suppression system into the building system.

• ELECTRICAL

o LED lighting provided underneath mezzanine with a minimum illuminance level of 50 foot-candles measured at 30 inches above the floor.

o Supported by mezzanine.

o On/off switches

Enclosed, tumbler type Located 52 +/- 2-inches in height from floor

• SAFETY FEATURES

o Metal live load capacity signs displayed on all sides of mezzanine o No-step signs posted on all railings on maximum 20-foot centers o Minimum vertical member safety factor of 1.92 to 1 o Minimum horizontal member safety factor of 1.67 to 1

4. QUALITY ASSURANCE PROVISIONS

4.1. INSPECTION

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

4.2. TESTS

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

No. Description Result

1. Maximum loads shall be placed randomly in the mezzanine. After not less than four hours, the test loads shall be removed and the mezzanine examined for signs of deformation. If any component of the system exhibits plastic or elastic deformation outside of the approved parameters, the system fails the test.

☐ Pass ☐ Fail

2. The lighting under the mezzanine shall be turned on. Test the lighting with a light meter 30 inches from the floor. If the lighting is

☐ Pass ☐ Fail

Pittsburgh ANGB – Appendix A - Page 5 not a minimum of 50 foot-candles then the system shall fail the test.

THIS AREA LEFT BLANK INTENTIONALLY