Appendix C- Wide-span Shelving PD.doc

APPENDIX C

FOR

WIDE-SPAN SHELVING

AT

RAF MILDENHALL UK

BUILDING 719

CSN: UML285

DATE: 20 August 2009

PREPARED BY:

LARRY HEAD

PROJECT ENGINEER

403 SCMS/GUEC

Table of Contents

11. SCOPE

2. APPLICABLE DOCUMENTS

3. REQUIREMENTS

3.1. System description

3.2. Performance and Physical Characteristics

3.2.1. Configuration requirements

3.2.2. Upright frames

3.2.2.1. Columns

3.2.2.2. Bearing plates

3.2.2.3. Diagonal/horizontal bracing

3.2.3. Shelf beams

3.2.3.1. Connectors

3.2.4. Decking

3.2.5. Leveling shims

3.2.6. Anchoring the structure

3.2.7. Assembly

3.2.8. Forklift guard posts

3.2.9. Row markers

4. QUALITY ASSURANCE PROVISIONS

4.1. Inspection

4.2. Tests

4.3. CERTIFICATIONS

autonumlgl SCOPE

This appendix establishes the minimum performance, design, fabrication, installation, and test requirements for a wide-span shelving system for Building 719 at RAF Mildenhall UK. The work shall be completed in accordance with this appendix, the Cover Purchase Description (PD), and Air Force Figures 4 and 5. This appendix covers all equipment, materials, and labor necessary to complete installation of the system.

autonumlgl APPLICABLE DOCUMENTS

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

autonumlgl REQUIREMENTS autonumlgl System description The wide-span shelving will be used to store medium sized loads (i.e., hand-liftable boxes and parts) in such a manner as to permit placement and removal of any individual item. The wide-span shelving system shall interface with rail-guided, man-up, turret trucks/orderpickers described in Appendix A. The wide-span shelving system shall be designed for use in seismic zone 2. The wide-span shelving shall conform to the requirements of the Rack Manufacturers Institute (RMI) June 1990 Specification for the Design, Testing, and Utilization of Industrial Steel Storage Racks.

autonumlgl Performance and Physical Characteristics autonumlgl Configuration requirements The rows of wide-span shelving shall be located as shown on AF Figures 4 and 5. The shelving shall be capable of being assembled side‑by‑side, in a row, using common uprights to support the shelf beams. Row 4 shall have 14, equally spaced, levels of shelf beams. Rows 5 and 6 shall have 13, equally spaced, levels of shelf beams. Row 7 shall have 9, equally spaced, levels of shelf beams.

autonumlgl Upright frames New upright frames shall be provided, which are 20 feet high for Row 4 and 24 feet high for Rows 5, 6, and 7. All uprights shall be 48 inches deep. The upright frames shall be made of all welded steel construction consisting of two columns, diagonal and horizontal braces, and floor bearing plates. Each upright frame shall be capable of being fully loaded to capacity without permanent deformation. The upright frames of like units shall be interchangeable. Upright frames for Row 4 shall have a capacity of 21,000 pounds. Upright frames for Rows 5 and 6 shall have a capacity of 19,500 pounds. Upright frames for Row 7 shall have a capacity of 13,500 pounds. All upright frames shall have a safety factor of 1.92 to 1.

autonumlgl Columns The columns shall be a continuous channel, box channel, rectangular, square or other formation approved by the Contracting Officer or technical representative (COTR). Each column shall have openings to readily accommodate beam connectors, end-to-end, at corresponding heights throughout the height range of the column openings. The openings at the bottom shall allow for the tops of shelf beams to be installed at 6 inches above the ground and shall continue upward to the top of the column by 2 inch or 3 inch increments. All openings of each column shall be identical to each other and identical to the openings of all other columns. The position of all corresponding openings of the columns shall not vary more than 3/32-inch as measured from the bottom of the bearing plates. The arrangement of the openings and the fastening devices of the beams shall be such that the tops of the beams are flush, within 1/2-inch, with the top of the column.

autonumlgl Bearing plates The bottom of each column shall have a load bearing plate securely attached. Each bearing plate shall be sufficiently sized to disperse the maximum load imposed by the column. Each bearing plate shall have a minimum of two punched holes to accept minimum 3/8-inch anchor bolts in accordance with 3.2.6.

autonumlgl Diagonal/horizontal bracing The columns shall be braced by horizontal and diagonal braces. Each end of all braces shall be securely welded to the columns. The braces shall not protrude beyond the sides of the columns or obstruct the attachment of the shelf beams to the columns, at any height on the columns. The centerline of the bottom horizontal brace shall not be located more than 12 inches from the bottom of the upright frame, and the centerline of the top horizontal brace shall be located not farther than 12 inches from the top of the upright frame. Other diagonal and horizontal braces shall be uniformly spaced between the top and bottom horizontal braces.

autonumlgl Shelf beams Shelf beams shall have a width of 108 inches and shall be the closed box or step type. Any openings in the shelf beam construction shall face inward, they shall not face the aisle. Shelf beam‑to‑column connection shall be of the locking type. With a uniformly distributed load of 1,500 pounds per bay, there shall be no permanent deflections, and elastic deformations shall not exceed 0.70 percent of the unsupported span, measured with respect to the two ends of the beam. Shelf beams shall be designed with a safety factor of 1.65 to 1.

autonumlgl Connectors Each end of the shelf beams shall have a multiple prong slip‑fit or slip‑joint type shelf beam‑to‑column connector. Separate shelf beams and connectors are unacceptable. The connectors shall allow shelf beams to be moved with no more than the use of a soft hammer. The connector shall be capable of transferring all loads and external forces of the shelf beam to the column without failure of the connection, or damage to the column or connector. The prongs shall be of sufficient number, size, and strength to withstand repeated loading and unloading of the rack, and to continually sustain the rated shelf beam load. The prongs shall engage with the openings of the columns in such a manner to prevent lateral rotation of the beam, with each prong contributing to the support of the beam. The prongs shall engage with the openings of the columns to ensure a snug metal‑to‑metal fit between the horizontal and vertical load carrying members. The prongs shall be of the same type design as the opening. The connector shall not be welded to the column.

autonumlgl Decking

Wire mesh decking shall be installed in between all parallel shelf beams and uprights. The decking shall have a nominal 2-inch by 2-inch grid. The decking shall be heavy duty welded steel wire with integral support channels capable of supporting a uniformly distributed load of 1,500 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 0.70 percent of the unsupported span. The decking shall be plated or galvanized to protect against corrosion in accordance with 3.3.3 of the Cover PD. 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.

autonumlgl Leveling shims Leveling shims shall be installed with the shelving 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 shelving 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.

autonumlgl Anchoring the structure The shelving shall be anchored to resist all design shear and uplift forces. The shelving units shall be designed to be a rigid freestanding structure and shall not be connected to any existing building structure except the floor. Each bearing plate shall be securely anchored to the floor with minimum one 3/8-inch diameter anchor bolt. The minimum embedment of the anchor shall be in accordance with 3.3.2.3 of the Cover PD.

autonumlgl Assembly The assembled wide-span shelving system shall be rigid, stable, and without deformation or skewing when each wide-span shelving unit is loaded to the capacity of the design loads. The wide-span shelving system shall assemble so that the columns are perpendicular to the beams and parallel to each other. Shelf frames shall be straight and square. All horizontal members shall be level to within 1/8-inch per 10 feet measured over any distance in the shelving system.

autonumlgl Forklift guard posts Steel pipe forklift guard posts shall be provided at the end of the rows as shown on AF Figure 4. The guard posts shall extend a minimum 3 feet above the floor and shall be installed in such a manner that they do not interfere with the normal usage of the system. A cap shall be installed on the top of the guard post. Each forklift guard posts shall be anchored to the floor with a minimum of four anchor bolts in accordance with 3.3.2.3 of the Cover PD. The guard posts shall be painted safety yellow.

autonumlgl Row markers Two card holders shall be installed on the end of each wide-span section for row identification. 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.

autonumlgl QUALITY ASSURANCE PROVISIONS autonumlgl Inspection 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 PD. These inspections shall be completed as part of the system checkout test and again as a part of the quality conformance test.

autonumlgl 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.

Deflection = [(M2 - M1) /108] * 100

If the deflection is greater than 0.70 or if permanent deformation exists on either the shelf beams or decking when the loads are removed, the system shall fail.

autonumlgl 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.

WIDE-SPAN SHELVING

Offeror:

-R-

Appendix C Wide-Span Shelving, 20 August 2009

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.

Shelving Manufacturer: _______________________________________

Row 4: _____ Row 5: _____ Row 6: _____ Row 7: ____

Row 5: _____ feet, ______ pounds, and ____________

Row 6: _____ feet, ______ pounds, and ____________

Row 7: _____ feet, ______ pounds, and ____________

Depth of upright frames: __________________ inches

Shelf beam part number: __________________________

Type of shelf beam: ______________________________

Minimum capacity per bay: _________________ pounds

Capacity of bay: __________________________ pounds

Length of anchor bolt: ____________________ inches

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: