Purchase Description- Bldg 105.pdf

PURCHASE DESCRIPTION

FOR A

STORAGE AID SYSTEM

FOR

127th LOGISTICS READINESS SQUADRON

SELFRIDGE AIR NATIONAL GUARD BASE

BUILDINGS 105

5 MAY 2020

1. REQUIREMENTS

This Purchase Description (PD) establishes the minimum performance, design, fabrication, installation, and test requirements for a Storage Aids System for the 127th Logistics Readiness Squadron at Selfridge Air National Guard Base, Michigan consisting of:

Section Specified in this PD:

2. Pallet Rack

3. Wide-Span Shelving

4. Bin Shelving

5. Cantilever Rack

6. Modular Cabinets

7. Pilferable Cage

8. Mezzanine

9. Sheet Metal Rack

10. Pipe Rack

11. Processing Counter

12. Mobile Aisle

13. Vertical Lift Module

14. Rider Reach

15. Contractor Project Requirements

16. Drawings and Pictures

The Contractor shall be responsible for all shipping and installation.

1.1 APPLICABLE CODES: All items provided shall be designed, fabricated, and installed in accordance with the applicable industry codes and standards and in accordance with the manufacturer’s specified procedures.

1.2 RACK CAPACITY LABELS: All racking shall have rack capacity labels applied to all shelves/arms detailing their weight capacities. The labels shall be approximately 2" x 4". Inscribed metal plates or paper stickers containing this information shall be acceptable.

2. PALLET RACK

DESCRIPTION:

Pallet rack shall be provided as shown on the drawings at the end of this PD.

DESIGN AND FABRICATION:

All pallet racks shall conform to the requirements of the Rack Manufacturers Institute (RMI) Specification for the Design, Testing and Utilization of Industrial Steel Storage Racks RMI/ANSI MH16.1 – 2012. In addition, the pallet racks shall be designed and manufactured by a company that has an active R-Mark license through the RMI.

PALLET RACK INTALLATION:

Pallet racks shall be anchored to the concrete floor.

UPRIGHT FRAMES

2.4.1. UPRIGHT FRAME SIZE:

Upright frames shall be as shown on the drawings at the end of this PD.

2.4.2. UPRIGHT FRAME CONSTRUCTION:

Uprights shall be all welded construction.

2.4.3. UPRIGHT FRAME MINIMUM CAPACITY:

12,000 pounds

2.4.4. UPRIGHT FRAME SAFETY FACTOR:

All upright frames shall have a minimum safety factor of 1.92 to 1.

2.4.5. UPRIGHT FRAME HOLE OPENING:

Holes shall allow for vertical spacing on 2-inch increments.

2.4.6. UPRIGHT FRAME COLUMNS:

The face of the columns for all uprights shall be 3-inches wide and the base of each column shall have a minimum 3-inch wide by 5-inch deep footplate welded to the bottom.

2.4.7. UPRIGHT FRAME COLOR:

Green

2.4.8. UPRIGHT FRAME ANCHORING:

Each upright frame shall be anchored to the concrete floor in accordance with the rack manufacturer’s specified installation procedures and parameters.

SHELF BEAMS

2.5.1. SHELF BEAM SIZE:

Shelf beams shall provide a bay width of 108 inches for Type A Rack.

2.5.2. SHELF BEAM TYPE:

Shelf beams shall be step type. Any openings in the shelf beam construction shall face inward, they shall not face the aisle.

2.5.3. SHELF BEAM MINIMUM CAPACITY:

Shelf beam capacity shall be as 6,000 pounds. Permanent deformations will be a basis for system rejection.

2.5.4. SHELF BEAM MINIMUM SAFETY FACTOR:

All shelf beams shall have a minimum safety factor of 1.65 to 1.

2.5.5. SHELF BEAM CONNECTORS:

Each end of the shelf beams shall have a multiple prong slip-fit or slip-joint type shelf beam-to-column connector. Shelf beam-to-column connection shall be of the locking type.

2.5.6. SHELF BEAM SAFETY LOCK:

Each shelf beam-to-column connection shall have a safety lock which shall lock the shelf beam to the column. The safety locking device shall be an integral, attached part of the shelf beam.

2.5.7. SHELF BEAM COLOR:

Orange

ROW SPACERS

Row spacers shall be capable of joining the backs of two upright frame sections together to form a double row arrangement. The row spacers shall provide a 6-inch flue space when storage locations are back-to-back. Each end shall firmly and securely attach to the column and prevent unintentional disengagement. The row spacer shall be of sufficient size and strength to withstand all forces applied to the connected upright frames during normal loading and unloading operations without deformation or failure. The Contractor shall supply and install a minimum of 2 row spacers for each set of back-to-back frames. The top row spacer shall be installed within 12 inches of the top of the frame. The bottom row spacer shall be installed within 12 inches of the bottom of the frame. The remaining row spacers shall be installed equidistant from each other.

LEVELING SHIMS

Leveling shims shall be provided with the rack units where necessary. The shims shall have holes corresponding to the holes in the bearing plate, and shall anchor or lock with the bearing plate when the rack is erected. Shims shall be equal in width and length to the bearing plate under which it is installed. Shims shall be of varying thickness so no more than five shims are installed at any point.

Slotted shims shall be unacceptable.

DECKING

Wire mesh decking shall be installed in all bays between all parallel shelf beams. The decking shall be heavy duty welded steel wire with integral support channels capable of supporting a uniformly distributed load of 6,000 pounds per bay. The decking shall be designed with a safety factor of 1.65 to 1. The decking shall not exhibit permanent deformation and elastic deformations shall not exceed

0.56 percent of the unsupported span. Decking shall be R-Mark compliant. The decking shall be plated or galvanized to protect against corrosion. Decking shall be the appropriate type to interface with the type shelf beam being provided. The ends of the wire mesh decking shall bend over the shelf beam to provide a secure load supporting deck and keep the decking from accidentally disengaging from the shelf beams.

3. WIDE SPAN SHELVING

DESCRIPTION:

Wide Span Shelving shall be provided as shown on the drawings at the end of this PD.

DESIGN AND FABRICATION:

All wide span shall conform to the requirements of the Rack Manufacturers Institute (RMI) Specification for the Design, Testing and Utilization of Industrial Steel Storage Racks RMI/ANSI MH16.1 – 2012. In addition, the pallet racks shall be designed and manufactured by a company that has an active R-Mark license through the RMI.

WIDE SPAN INTALLATION:

Wide Span shall be anchored to the concrete floor.

UPRIGHT FRAMES

3.4.1. UPRIGHT FRAME SIZE:

Upright frames shall be as shown on the drawings at the end of this PD.

3.4.2. UPRIGHT FRAME CONSTRUCTION:

Uprights shall be all welded construction.

3.4.3. UPRIGHT FRAME MINIMUM CAPACITY:

Upright frames shall have a minimum capacity of 4,400 pounds for Type E rack and 3,300 pounds for Type G rack.

3.4.4. UPRIGHT FRAME SAFETY FACTOR:

All upright frames shall have a minimum safety factor of 1.92 to 1.

3.4.5. UPRIGHT FRAME HOLE OPENING:

Holes shall allow for vertical spacing on 2-inch increments.

3.4.6. UPRIGHT FRAME COLUMNS:

The face of the columns for all uprights shall be 3-inches wide and the base of each column shall have a minimum 3-inch wide by 5-inch deep footplate welded to the bottom.

3.4.7. UPRIGHT FRAME COLOR:

Green

3.4.8. UPRIGHT FRAME ANCHORING:

Each upright frame shall be anchored to the concrete floor in accordance with the rack manufacturer’s specified installation procedures and parameters.

SHELF BEAMS

3.5.1. SHELF BEAM SIZE:

Shelf beams shall provide a bay width of 108 inches for Type E and G rack.

3.5.2. SHELF BEAM TYPE:

Shelf beams shall be step type. Any openings in the shelf beam construction shall face inward, they shall not face the aisle.

3.5.3. SHELF BEAM MINIMUM CAPACITY:

Shelf beam capacity shall be as show on drawings at the end of this PD. Permanent deformations will be a basis for system rejection.

3.5.4. SHELF BEAM MINIMUM SAFETY FACTOR:

All shelf beams shall have a minimum safety factor of 1.65 to 1.

3.5.5. SHELF BEAM CONNECTORS:

Each end of the shelf beams shall have a multiple prong slip-fit or slip-joint type shelf beam-to-column connector. Shelf beam-to-column connection shall be of the locking type.

3.5.6. SHELF BEAM SAFETY LOCK:

Each shelf beam-to-column connection shall have a safety lock which shall lock the shelf beam to the column. The safety locking device shall be an integral, attached part of the shelf beam.

3.5.7. SHELF BEAM COLOR:

Orange

3.5.8. ROW SPACERS:

Row spacers shall be capable of joining the backs of two upright frame sections together to form a double row arrangement. The row spacers shall provide a 6-inch flue space when storage locations are back-to-back. Each end shall firmly and securely attach to the column and prevent unintentional disengagement. The row spacer shall be of sufficient size and strength to withstand all forces applied to the connected upright frames during normal loading and unloading operations without deformation or failure. The Contractor shall supply and install a minimum of 2 row spacers for each set of back-to-back frames. The top row spacer shall be installed within 12 inches of the top of the frame. The bottom row spacer shall be installed within 12 inches of the bottom of the frame. The remaining row spacers shall be installed equidistant from each other.

3.5.9. LEVELING SHIMS:

Leveling shims shall be provided with the rack units where necessary. The shims shall have holes corresponding to the holes in the bearing plate, and shall anchor or lock with the bearing plate when the rack is erected. Shims shall be equal in width and length to the bearing plate under which it is installed. Shims shall be of varying thickness so no more than five shims are installed at any point. Slotted shims shall be unacceptable.

3.5.10. DECKING:

Wire mesh decking shall be installed in all bays between all parallel shelf beams. The decking shall be heavy duty welded steel wire with integral support channels capable of supporting a uniformly distributed load of 6,000 pounds per bay. The decking shall be designed with a safety factor of 1.65 to 1. The decking shall not exhibit permanent deformation and elastic deformations shall not exceed 0.56 percent of the unsupported span. Decking shall be R-Mark compliant. The decking shall be plated or galvanized to protect against corrosion. Decking shall be the appropriate type to interface with the type shelf beam being provided. The ends of the wire mesh decking shall bend over the shelf beam to provide a secure load supporting deck and keep the decking from accidentally disengaging from the shelf beams.

4. BIN SHELVING

4.1 SHELVING LAYOUT:

The shelving system shall consist of shelving units as shown in the drawings at the end of this PD. These shelving units shall be arranged in rows by attaching them together end-to-end and/or back-to-back.

4.2 SHELVING UNIT DESIGN

Shelving shall be secured to the supporting posts by means of positive engaging clips. All shelving, including parts and assemblies, shall be identical.

4.3 SAFETY FACTOR

Design and construction of each load bearing component shall assure that the component is capable of sustaining the specified load with a minimum safety factor of 1.65 to 1.

4.4 SHELF DETAILS

4.4.1 SHELF SIZE

One type of bin shelving shall be provided. The bin shelving in Building 105 shall be 36 inches wide by 181 inches deep by 72 inches tall.

4.4.2 SHELF CAPACITY

Each shelf shall be capable of sustaining a uniformly distributed static load of 400 pounds with an elastic deformation less than 0.875 percent of the unsupported span length, measured with respect to the two ends of the shelf and without any permanent deformation.

4.4.3 SHELF DESIGN

Shelves shall be 18 gauge steel. Plain shelf edges shall be flanged down on all sides not less than 1-1/8 inch nor more than 1-1/2 inches, with not less than one additional return flange on each side.

4.4.4 SHELF CLIPS

Shelf clips shall be provided in sufficient quantity to secure each of the four corners of each shelf to all four supporting posts. The shelf clips shall be designed to preclude the possibility of accidental disengagement of the clips from the post or the shelves under loaded conditions. The shelf clips shall allow for the spacing of the shelf to be changed with minimum disturbance to surrounding shelves and shelving units. Shelf clips shall be capable of being changed with no more than a hammer.

4.5 SUPPORTING POSTS

4.5.1 SUPPORTING POST SIZE

The supporting posts shall be 72 inches high for Building 105.

4.5.2 SUPPORTING POST CAPACITY

Each front and back supporting post shall have a minimum capacity of 1,600 pounds for Building 105 based on 24 inch shelf spacing without any visible evidence of permanent deformations.

4.5.3 SUPPORTING POST DESIGN

Mounting holes for clips shall be provided on the supporting posts. Mounting holes shall permit adjustment of shelf height on either 1-inch or 1 1/2-inch increments. Holes shall be provided as required for attachment of all back and end panels. Supporting posts shall be provided at all four corners of all shelving units.

Common supporting posts may be used at adjacent corners of single or double faced racks.

4.5.4 SUPPORTING POST TYPE

The front supporting posts shall be either beaded or box type as defined by the Shelving Manufacturers Association. Supporting posts shall be continuous for any shelving unit under 147 inches high. Supporting post splices shall not interfere with the specified shelf placement.

4.6 ASSEMBLED DIMENSIONS

The following tolerances shall apply to the assembled dimensions of the shelving units:

Maximum depth of single row: Nominal shelf depth + 5/16 inch Maximum depth of a double row:

Nominal shelf depth * 2 + 7/8 inch Maximum aisle length: (Nominal shelf width + 1-5/16 inch) * shelving units in row + 2-7/8 inch

4.7 BACK PANELS

Back panels shall have either predrilled or punched mounting holes which match up to mating holes in the supporting posts. Back panels shall be made of metal and shall fully enclose the back of the shelving unit from the floor to the top of the unit. Overlapping of two or more back panels will be acceptable in lieu of one continuous panel from top to bottom for backs over 87 inches high. Back-to-back shelving units shall share a single, common back panel between each unit. The back panels shall be secured to the supporting posts. Shelves shall not be used to secure the back panels into position. Screws used to secure the back panel shall not prohibit the installation of shelves. Back panels of a single row of shelving, not against a wall, shall include extra screws or equivalent to prevent gaps and ripples vertically and horizontally between other back panels and/or the supporting posts.

4.8 SIDE PANELS

Side panels shall have either predrilled or punched mounting holes to match up to mating holes in the supporting posts or shall be factory welded to supporting posts. Side panels shall fully enclose the ends of a shelving unit and shall extend from the top of the shelving unit to the floor. Overlapping of two or more side panels will be acceptable in lieu of one continuous panel from top to bottom for ends over 87 inches high. Side-by-side shelving units shall share a single common side panel between each unit.

4.9 BASE STRIP

A steel strip shall be provided and installed on each shelving unit between the bottom shelf and the carriage.

4.10 FOOT PLATES

Each supporting post shall have a footplate attached and shall be secured to the ground with anchor bolts or to the mobile aisle system as shown on the drawings at the end of this PD. The foot plates shall distribute the weight of a fully loaded shelving unit over the ground. Footplates shall be positioned to not interfere with erection of adjoining units and still provide ease of access for anchoring procedure. Footplates shall be concealed behind the base strips.

4.11 FREESTANDING STRUCTURE

The shelving system shall be designed to be a rigid freestanding structure and shall not be connected to any existing building structure except the floor or mobile aisle. The shelving units shall be designed to resist all shear and uplift forces.

4.12 ASSEMBLY

The Contractor shall assemble, on site, all shelving units including bracing, panels (side and back), and shelves as specified in this appendix in the quantities necessary to meet the storage requirements specified.

4.13 ALIGNMENT

After assembly, the shelving units shall be capable of maintaining the same position in a loaded, partially loaded, or empty capacity. Alignment of each row of shelving units shall be in all three directions, down each row of shelving units, from row to row, and vertically for each shelving unit face.

4.13.1 AISLE ALIGNMENT

Shelving unit face alignment shall be maintained down each row within 1/8 inch from one shelving unit to the next.

4.13.2 SHELVING UNIT VERTICAL ALIGNMENT

Each shelving unit face shall be plumb to within 1/4 inch from the floor to the top of the unit. Each supporting post shall be plumb to within 1/4 inch when examined from any direction. All shims used shall be secured beneath the foot plate. The shims shall be the same size as the foot plate and shall have a hole(s) to correspond with the hole(s) in the foot plate for anchoring.

4.14 Color

The contractor shall submit a color chart for approval by the COTR as a part of the shop drawing submittal.

5. CANTILEVER RACK

5.1 CANTILEVER RACK DESIGN

All components shall be constructed to produce a rigid, stable rack. The design and construction of each load bearing component shall ensure that the component is capable of sustaining the maximum load with a safety factor of not less than 1.65 to 1. No component of the cantilever rack shall exhibit any plastic (permanent) deformation.

5.2 BASES

There shall be one base for each upright in the system, which shall be used as a shelf. It shall provide support for the upright and shall prevent the racks from leaning or collapsing when the rack is loaded to capacity.

The base shall be at least as long as the upright depth plus the length of the arms. Single-sided cantilever rack shall have bases which are longer than the upright depth plus the arm length, unless they are anchored to the floor

5.3 UPRIGHTS

Uprights shall have an overall height of 12 feet and a capacity of 6,000 pounds. They shall have a means for adjusting arms on nominal three inch centers from 24 inches above the floor to six inches from the top of the upright. Uprights shall be spaced on 72 inch centers.

5.4 BRACING

Horizontal and diagonal bracing shall be used to maintain alignment of the cantilever racks under varying loads and horizontal stresses. The bracing shall hold the uprights vertical, maintaining the proper spacing between the uprights.

5.4.1 HORIZONTAL BRACING

A minimum of three horizontal braces are required between every two uprights. These braces shall be evenly spaced along the upright.

5.4.2 DIAGONAL BRACING

A minimum of one diagonal, X-type braces are required between every other set of uprights (i.e., between uprights 1 and 2, 3 and 4, 5 and 6, etc.). They shall also be installed at each end of every row.

5.5 ARMS

Two arms shall be provided for each upright. These arms shall be installed as shown on the drawings at the end of this PD. Each arm shall be capable of supporting 2,000 pounds. The arms shall be 48 inches long and shall fasten securely to the uprights by use of a connector. The arms shall have a minimum upward pitch of 1/4 inch per foot to compensate for any deflection under full rated load. No arm, when loaded to capacity, shall deflect below the horizontal plane.

5.5.1 CONNECTORS

The connector shall be capable of transferring all loads and external forces of the arm to the column without failure of the connection, or damage to the column or connector. The connectors shall ensure a snug, metal-to-metal fit between the horizontal and vertical load carrying members.

5.5.2 SAFETY CATCH FEATURE

If adjustable connectors are used, a safety catch feature shall be provided on each arm to securely lock the arm to the column at the assembly. Design of the catch feature shall preclude the arm from dislodging due to impact or movement of the racks.

5.6 ROW MARKERS

Card holders shall be installed on the end of each rack section for row identification. Two card holders shall be mounted on each end of every row. The card holders shall be large enough for a minimum 8 inch by 8 inch card to be displayed. The card holders shall be mounted between 7 feet and 10 feet from the floor.

Row identification cards will be made up by the warehouse personnel according to their established location assignment practices. A blank card will be provided by the Contractor for each card holder.

5.7 WIRE MESH DECKING

Wire mesh decking shall be installed between all parallel arms and adjacent bases. The decking shall be heavy duty welded steel wire, capable of supporting the maximum load. The decking shall be plated to protect against corrosion. The decking shall be supported between each pair of parallel arms and adjacent bases by at least three, evenly spaced, deck support beams. The decking shall be installed flush with the top of the arms by using deck support beam saddles, connected to the arms with mechanical fastening devices. The decking shall be installed to prevent accidental disengagement from the deck support beams.

6. MODULAR CABINETS

6.1 DESCRIPTION

A modular cabinet is defined as a unitary set of drawers/shelves and the housing or cabinet used to support the drawers/shelves. Individual drawers shall be compartmentalized to provide separation between different parts. The modular cabinet storage systems shall be located and configured as shown on the drawings at the end of this PD. The system shall be modular in construction for easy dismantling and re-assembly.

6.2 DIMENSIONS

All cabinets shall have outside dimensions 59”H x 30”W x 24”D

6.3 CABINET HOUSING LOAD CAPACITY

Each cabinet housing shall be capable of supporting a minimum static load of 10,000 pounds.

6.4 PALLET BASE

Each modular cabinet shall be provided with a built-in pallet base. The pallet base shall be an integral part of the modular cabinet. The pallet base shall have a height of 2.5 +/- 0.5 inches.

6.5 BASE ENCLOSURE

Each modular cabinet shall have removable base enclosure plates to cover the front and rear of the pallet base.

6.6 DRAWERS

6.6.1 DRAWER LOAD CAPACITY

Each drawer shall have a minimum capacity of 400 pounds. When fully loaded with 400 pounds, all drawers shall be capable of being opened and closed without jamming or twisting of the carriage. When fully loaded, an open drawer shall not exhibit deflection greater than 0.62 inch from its closed position, when measured from the floor to the middle of the front of the drawer.

6.6.2 DRAWER DIMENSIONS

The inside drawer dimensions shall be 25 inches +/- 1 inch for both width and depth. The height of the sides and back wall of the drawer shall not be less than 48 percent of the drawer front height.

6.6.3 DRAWER PUSH-PULL FORCES

The forces required to move a drawer, loaded to the maximum capacity of 400 pounds per drawer, shall not exceed 25 pounds to start outward, 45 pounds to start inward, and 40 pounds to continue moving.

6.6.4 DRAWER DIVIDER STRIPS

Divider strips shall be provided around the four inside walls of each drawer. The divider strips shall be factory installed, and an integral part of the drawer. The divider strips shall provide for spacing of partitions and crosswise dividers in a range of 0.50 inch to 1 inch intervals.

6.6.5 PARTITIONS

Partitions shall be defined as drawer dividers which run from front-to-back of each drawer. All partitions shall be made of steel. Partitions shall have slot spacing to match the drawer divider strips for placement of crosswise dividers. Each partition shall be anchored with a minimum of two bolts and nuts or two self-tapping metal screws to the bottom of the drawer to keep the partition flush against the bottom of the drawer. The height of the partitions and crosswise dividers shall be no less than 75% of the height of the drawer body. All partitions shall be installed across the depth of each drawer.

6.6.6 CROSSWISE DIVIDERS

Crosswise dividers shall be defined as dividers placed between adjacent partitions or between a drawer divider strip and a partition. All crosswise dividers shall be made of steel or aluminum. Crosswise dividers shall be easily removable and interchangeable with other crosswise dividers of the same size. All crosswise dividers shall be installed across the width of each compartment.

6.6.7 DRAWER PULL LABEL HOLDING SYSTEM

Each drawer pull shall be aluminum and shall have a label holding system. The label holding system shall be at least 20 inches long and shall be designed to accept a label at least one inch high. The label holding system shall have a clear plastic shield covering a paper label with plastic or aluminum end caps that provide an enclosed label system. The contractor shall provide two spare label end caps per cabinet. There shall be no sharp protrusions on any part of the drawer pull label holding system.

6.6.8 DRAWER STOPS

Each drawer shall be equipped with drawer stops to prevent over-travel of the drawer when fully extended.

These safety stops shall prevent the drawer from being removed unless released by the operator.

6.6.9 CARRIAGES AND BRACKETS

The cabinets shall include carriages (defined as rolling intermediate members which permit 100 percent extension of the drawer interior) and minimum 10 gauge steel brackets or side channels (defined as those members fixed to the sides of the cabinets). Carriages shall operate on precision ball and/or roller bearings.

All carriages and brackets shall be the same for all drawers and completely interchangeable to preclude any possibility of an unsafe mix-up of lightweight brackets and carriages with heavily loaded drawers.

6.7 DRAWER CONFIGURATION

The modular cabinet configuration shall be as indicated in Table 1. Each drawer shall be compartmentalized such that the assigned numbers of compartments are provided as shown in Table 1. The compartments within a single drawer shall be approximately equal in size.

TABLE 1 - MODULAR CABINET CONFIGURATION

Number of Drawers

Usable Height (inches)

Number of Compartments Across

Width

Number of Compartments Across

Depth

Modular Cabinet Configuration: Building 105, 11 Drawers

6 3-7/8” 4 6

4 5-3/8” 4 3

6.8 CABINET LOCK

Each cabinet of the modular cabinet system shall have a keyed lock. The lock shall prevent unauthorized entry into a cabinet drawer. Each modular storage cabinet system shall have a minimum of five keys/building. All locks shall be keyed alike.

7. PILFERABLE CAGE

A 12’ x 30’ 4 sided wire cage shall be provided in Building 105 as shown on the drawings at the end of this PD. The cage shall run from floor to mezzanine floor with a 6’ sliding gate door with padlock and equipped in such a way as to form a secured storage area. The cage shall be constructed of a maximum 2-inch x 2-inch x 10-gauge wire mesh with corner posts.

MEZZANINE

SYSTEM DESCRIPTION

One mezzanine shall be located according to the drawings at the end of this PD and 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.

e. Pallet gates.

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

CHARACTERISTICS

8.2.1 LOAD CAPACITY

All components of the mezzanine shall be designed to support a minimum capacity of of 150 pounds per square foot.

8.2.2 FREESTANDING STRUCTURE

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

8.3 PRE-ENGINEERED

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

8.4 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.

8.5 DIMENSION AND CLEAR HEIGHT

The mezzanine shall be a nominal 96’ long x 46’ wide and shall have a nominal clear height of 10’ underneath all components of the mezzanine. The top of the decking on the mezzanine shall be a maximum of 11’-6” above the existing floor.

8.6 SEISMIC

The mezzanine shall be designed and constructed in accordance with design codes applicable at Selfridge ANGB. The system shall be designed to withstand seismic forces as specified in UFC 3-310-04.

8.7 COLUMNS

Columns shall be cold formed, structural steel tubing and shall meet or exceed the requirements of ASTM A500, Grade B, FY-46KSI. Columns shall be spaced on centers as shown conceptually shown on the drawings at the end of this PD. Contractors shall highlight any major variation from the conceptual design in their design. The columns shall be pre-punched at the top to provide a secure connection to beams and joists.

Columns shall be a minimum of 6 inches x 6 inches x 3/16 inch thick.

8.7.1 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 12 inches x 12 inches x 5/8 inch. Base plate grout shall be used as required.

8.7.2 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.

8.7.3 BEAMS

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

8.7.4 JOISTS

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

8.7.5 BRIDGING

Structural steel bridging channels shall be minimum 18-gauge steel.

8.8 DECKING

The decking shall consist of a metal roof deck and a composite flooring with a minimum density of 60 pounds per cubic foot. The decking shall sustain the load specified in 3.2.1.1.

8.8.1 METAL ROOF DECK

The metal roof deck shall be galvanized or painted on both sides and consist of 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. If the roof deck is painted, the bottom of the roof deck shall be painted white and the top shall be painted the manufacturer's standard color. The roof deck shall be securely fastened to the framing with plated, self-tapping, steel screws or equivalent as approved by the Contracting Officer’s Technical Representative (COTR).

8.8.2 COMPOSITE FLOORING

The composite flooring shall be Resindek or equivalent. 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.

8.9 STAIRWAY SYSTEM

Stairway systems shall be provided at the locations shown on the drawings at the end of this PD. Stairway systems shall include stairs, structural steel stringers, railing, platforms, and all necessary hardware to install the stairways. Stairways shall be 36 inches wide. 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.

8.9.1 STAIR TREADS

Stairs shall be closed tread with diamond plate.

8.9.2 STRINGERS

Stringers shall meet or exceed the requirements of ASTM A36.

8.9.3 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 either the 2-rail or 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. 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.

8.9.4 MEZZANINE RAILING

Railing shall be provided on the open sides of all exposed mezzanine floor. Rails shall be designed and constructed in accordance with OSHA 1910.23 and shall be of either the 2-rail or 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.

8.9.5 KICKPLATE

A kickplate shall be provided on all open 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.

8.10 PALLET GATES

Pallet gates shall be provided at the locations shown on the drawings at the end of this PD. The gates 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 72 inches. The pallet gates shall be the swinging hinged type. Each pallet gate shall have a minimum of two tie-off points for fall protection harnesses to allow personnel to tie-in when the gate is open. Each tie-off point shall be positioned in such a way to not interfere with normal operations of the pallet gate.

8.11 FIRE SUPPRESSION SYSTEM

The Contractor shall design and install a wet-pipe fire suppression system under the mezzanine in accordance with NFPA 13-2010 and applicable fire codes at Selfridge ANGB, MI. 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 size, spacing and location shall be in accordance with NFPA 13-2010, Chapter 4. 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 3.2.1.5 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.

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 qualified registered Professional Engineer or a R.M.E. (NICET Level IV) technician.

8.12 ELECTRICAL CHARACTERISTICS

8.12.1 LIGHTING

The Contractor shall provide LED lighting underneath the mezzanine with a minimum illuminance level of 50 foot-candles measured at 30 inches above the floor. Lighting shall be supported by the mezzanine.

8.12.1.1 FIXTURES

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. T-8 LED light fixtures and lights shall be utilized. LED lighting using 4-foot tubes shall be utilized to light the mezzanine area. Lenses shall be provided for all lights.

8.12.1.2 MOTION SENSORS

Lighting shall come on via 2300 motion sensor. The motion sensor shall be adjusted for turning the lights off after 5 minutes of no movement. This shall be field adjusted. Toggle switches shall be installed to activate lights continually.

8.13 SAFETY FEATURES

8.13.1 CAPACITY MARKINGS

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

8.13.2 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.

8.13.3 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.

9. SHEET METAL RACK

Two sheet metal racks shall be provided in Building 105 as shown on the drawings at the end of this PD.

Each rack shall have nominal dimensions of 84”H x 153-1/2”D x 159”W, capable of storage a maximum sheet size of 72” x 144”. There shall be 8 storage levels with each shelf capable of supporting a minimum of 5,500 pounds, able to extended 100% of its length, and have a shelf clearance of 5-27/32”.

10. PIPE RACK

One double sided pipe rack shall be provided in Building 105 as shown on the drawings at the end of this PD. The pipe rack shall be nominal 96”W x 54”D x 80”H with 24” arms on each side. There shall be a total of five arms on each side with each arm capable of supporting a minimum of 500 pounds.

11. PROCESSING COUNTER

One 12’W x 3’3”H x 2’8”D Processing Counter; comprised of 1-3/4” thick hardwood top, three sets of support legs (one at each end and one spaced evenly in the middle; solid metal backpanel completely enclosing its back end to form a processing counter shall be provided in Building 105 as shown on the drawings at the end of this PD.

12. MOBILE AISLE

12.1 DESCRIPTION: Two mechanical-assist, mobile storage systems shall be provided to interface with the Wide-Span shelving in Building 105. The systems shall be configured as shown on the drawing at the end of this PD and shall consist of:

a. Carriages, including drive chain.

b. A stationary platform.

c. Wide Span Shelving (as specified in Section 3).

d. Rails.

e. Elevated flooring.

f. Ramps.

g. Anti-movement locks.

h. Mechanical fasteners, anchors, and all other items required to install the mobile aisle system.

12.2 SYSTEM OPERATION: Each carriage shall have a crank mechanisms on those ends indicated in the drawings at the end of this PD. The crank mechanisms shall be turned manually clockwise or counterclockwise to move the carriage in the desired direction. No more than five pounds of force on the crank shall be required to move a fully loaded carriage.

12.3 CARRIAGES: Carriages shall consist of a frame and a drive train, upon which either Wide Span or Bin Shelving shall be installed. All carriages shall be capable of supporting a minimum load of 1,000 pounds per carriage foot. No system component shall deflect greater than 0.5 percent of the distance between supports when fully loaded. No component shall exhibit permanent deformation after the maximum load has been removed.

12.3.1 FRAME: The frame shall consist of aluminum or steel channel, welded or bolted together to fully support a fully loaded rack section. Cross bracing shall ensure rigidity. Bumpers shall be mounted on the frame, spaced appropriately to minimize carriage contact. The frame shall be designed for an integral drive train.

12.3.2 DRIVE CHAIN: Drive chain shall consist of a set of gear reduction sprockets from the crank shaft to the drive shaft.

12.3.3 DRIVE SHAFTS: Drive shafts shall be made of steel and have a minimum diameter of 3/4 inch.

Splices or connections to other sections of the drive shaft, drive wheels, and gears shall be slotted for key joints or use shoulder bolts. Drive shafts shall run through pillow block or flanged bearings on either side of the drive wheel. Slave drive shafts shall be driven by use of sprockets and chain from the main drive shaft.

12.3.4 BEARINGS: Bearings shall have a static load rating equal to or greater than the maximum bearing loading, including applicable safety factors, under all operating conditions. Bearings shall be permanently lubricated, securely mounted, and properly housed for protection from physical damage.

12.3.5 WHEELS: Each carriage shall have two wheels per rail. Each carriage shall have at least two drive wheels and at least two guide wheels (drive wheels may also act as guide wheels). All wheels shall be balanced, hardened steel. Wheels which are connected to the drive shaft shall be slotted for key joints. Wheels shall be capable of supporting the fully loaded carriage. Wheels shall not slide or lose contact with the rail.

12.3.6 GUIDANCE SYSTEM: All carriages shall use flanged wheels or guide bearings for guidance over the rails. If flanged wheels are used, each carriage shall have a minimum of two flanged guide wheels. If guide bearings are used, then each carriage shall have a minimum of four sets of guide bearings. Guide bearings shall be precision machined and permanently lubricated.

12.4 RACK SECTIONS: Wide Span Shelving, which conform to the requirements of Section 3, shall be bolted to the carriages and stationary platform as indicated on the drawings at the end of this PD.

12.5 FACE PANELS: Metal, decorative, face panels shall be fastened to both ends of all shelving sections (both carriage units and stationary platforms). Face panels shall provide a rigid mounting location for the cranks and card holders. The face panels shall cover the entire width and height of the shelving section sides.

12.6 ROW IDENTIFICATION: Card holders shall be installed on the face panels for row identification. Two card holders shall be mounted on each face panel unless the row is accessible from only one side, in that case only one card holder is required. The card holders shall be at least five inches wide by three inches high and mounted at eye level so that operators can locate numbers easily. Row identification cards will be made up by the Government personnel according to their established location assignment practices. A blank card will be provided by the Contractor for each card holder.

12.7 RAIL INSTALLATION: The carriages shall move over minimum one inch high, steel rail assemblies located on top of the floor. After leveling the rails, load bearing grout shall be used to fill in any gaps between the rail assemblies and the existing floor. Rails shall be installed no more than seven feet apart.

12.8 ELEVATED FLOORING: The Contractor shall install elevated flooring for the mobile storage system. Elevated flooring shall be fire retardant plywood, which is able to support a load of 75 pounds per square foot. A covering (such as “Endura” or equivalent) shall be installed on top of the plywood panels.

Flooring shall be sized to fit between the rails, level with the top of the rails, in order to provide a safe walking surface for personnel. The elevated flooring shall be enclosed on all sides by ramps or panels to prevent dust from gathering on the rails and drive chain. Adjacent sheets of subflooring shall be shimmed along the full length of the common side.

12.9 RAMPS: Metal ramps shall be installed to allow an easy transition to the elevated flooring. The ramps shall be provided along the entire length of the sides allowing entrance to the aisles. The ramps shall not extend past the end of the carriages into the main aisle. The grade on these ramps shall not exceed 10 percent.

12.10 ANTI-MOVEMENT LOCK: Each carriage shall be equipped with a mechanism that will lock the carriage in place while the operator is in the aisle.

13. VERTICAL LIFT MODULE

Two KardexRemstar Shuttle XP500 (System ID: SHUTTLE-XP-500-1850X864-US) units shall be provided in Building 105 as shown on the pictures and drawings at the end of this PD. Specific units are required to match two existing units which have an established maintenance contract and to prevent redundancies in operations procedures for base personnel.

14. RIDER REACH

14.1 SYSTEM DESCRIPTION

The rider-reach vehicle system should be installed according to the drawings at the end of this PD and interface with the pallet and cantilever racks specified in sections 2 and 5. The vehicle system shall consist of the following components:

a. One vehicle

b. One battery

c. One battery charger

d. Conduit, wiring, mechanical fasteners and all other items required to install an operational system.

14.2 CHARACTERISTICS

14.2.1 CAPACITY

The truck, with a 24-inch load center, shall have a capacity of 3,000 pounds to a lift height of 14 feet.

14.2.2 RATE OF TRAVEL

The truck shall operate at continuously variable speeds in both the forward and reverse directions. It shall have a nominal travel speed of 5 to 6 miles-per-hour (mph).

14.2.3 PLUGGING

The truck shall be capable of "plugging", whereby the operator can slow or stop the truck by reverse movement of the speed control.

14.2.4 LIFTING/LOWERING

There shall be no pulsating or jerky movement of the fork carriage when being raised or lowered at any speed. The hydraulic control system shall be damped, metered, or automatically regulated to reduce shock and prevent instability of the truck when the maximum capacity load is raised or lowered at maximum speed and then stopped suddenly.

14.2.5 STEERING

Power steering shall be provided. Steering shall be accomplished by a hand operated steering crank or a round steering wheel equipped with a steering knob for convenient operation.

14.2.6 REACH MECHANISM

A pantograph type, hydraulic controlled reach mechanism shall be provided to extend the forks a minimum of 22.75 inches from the fully retracted position with a load of 3,000 pounds. In the fully extended position, the bend in the forks shall extend beyond the truck outriggers. The reach mechanism shall be capable of operating at all lifting heights with up to the rated capacity load.

14.2.7 FORK CARRIAGE

The fork carriage shall be equipped with a hydraulic controlled tilt mechanism, hydraulic controlled sideshift mechanism, and a load backrest. Tilt and sideshift mechanisms shall be designed to operate in all reach positions and at all lifting heights, with up to the rated capacity load.

14.2.7.1 TILT MECHANISM

A hydraulic controlled tilt mechanism shall be provided. The tilt mechanism shall be capable of a minimum 2 degree forward and 4 degree rearward tilt.

14.2.7.2 SIDESHIFT MECHANISM

A hydraulic controlled sideshift mechanism shall be provided. Sideshift mechanism shall be capable of positioning the fork carriage two inches to either the right or left of the center position. Total sideshift travel shall be 4 inches.

14.2.7.3 LOAD BACKREST

The fork carriage shall be equipped with a load backrest. Load backrest shall be fabricated of steel and shall be a minimum 36 inches high.

14.2.7.4 FORK TINES

Forks shall be minimum 4 inches wide by 36 inches long, forged steel. Fork spacing shall be adjustable.

14.2.7.5 WHEELS

Wheels shall clear the truck structure by at least 1/4-inch under all conditions of operation. All tires shall be non-marking, solid polyurethane or non-marking, solid rubber molded onto a steel band pressed onto flat-faced wheels.

14.2.7.6 OPERATOR’S COMPARTMENT

The flooring shall have a nonskid, low-fatigue surface. The operator's compartment and controls shall be arranged so that no part of the operator's body shall extend beyond the outside plane of the truck during normal operation.

14.2.7.7 OVERHEAD GUARD

The operator's compartment shall be protected by a steel overhead guard which meets the requirements of

ANSI B56.1A.

14.2.7.8 DEADMAN BRAKE

The operator shall depress the deadman pedal before any truck activity can be initiated. The brake pedal, when depressed to fully release the brake, shall be in a horizontal position and flush with the floor of the operator's platform.

14.2.7.9 HOUR METER

An electrically operated hour meter shall be provided to register cumulatively the duration of truck activity.

14.2.7.10 BATTERY DISCHARGE IINDICATOR

A battery discharge indicator shall be installed to sense an 80 percent discharge condition of the battery. The device shall inhibit lift capabilities when an 80 percent discharge condition exists.

14.2.7.11 KEY SWITCH

A key switch shall be provided to energize and deenergize the truck electrical circuits.

14.2.7.12 HORN

The truck shall be equipped with a push button electric horn.

14.2.8 ELECTRICAL CHARACTERISTICS

14.2.8.1 POWER SOURCE

The Contractor shall furnish and install all necessary wiring and equipment for power distribution to the battery charger from an existing electrical junction box.

14.2.8.2 BATTERY SYSTEM

When a discharged battery must be charged, the truck shall be positioned adjacent to the battery charger and the charging cables attached to the battery. The battery and charging equipment shall be a minimum 24 volt system.

14.2.8.2.1 BATTERY

Each truck shall be supplied with a lead-acid battery, rated at a minimum of 24 volts. It shall have a minimum ampere hour capacity for a continuous full eight hours of operation without recharging or replacement.

14.2.8.2.2 BATTERY CHARGER/CHARGER STAND

One battery charger on a charger stand shall be furnished with the system, installed as shown on the…