Shelving Specifications for Vital Records Storage.docx

Shelving Specifications for Vital Records Storage

Powder coat paint for archival quality.

Please meet or exceed the quality of Montel QuadraMobile with Smartshelf hook support shelving and Mobilex with Smartshelf hook support shelving. The QuadraMobile is the longer smaller system with the 3” carriage and floor decking. The carriage system uses the Smartshelf shelving on it with hook supports for shelves. The Mobilex system is the larger with the Smartshelf shelving on it.

All shelves should be with four bends and be ¾” thick. Set as a box shelve with center divider and sides to keep boxes on its own side and keep from migrating in frame. All frames should be back to back and not full depth. The post is made of 16-gauge 1 ¼” x 1 ½” rectangular shaped cold rolled steel. The post is slotted on each side at every one inch increment. All shelves 18 gauge. To be adjustable in 1” increment. Please include ADA ramp for the larger 5” carriage system with full length drive shaft. Please include 8” ramp for the smaller longer system.

MOBILE SHELVING STORAGE

(MECHANICAL ASSIST WITH MODULAR FLOOR)

A. Design : The Mobile System shall consist of a rail and deck assembly with two (2) or more parallel rails and a platform surface between them, and wheeled carriages, which ride on the rails. The carriages are made to support shelving and they shall have a capacity of 750 pounds per linear foot, as a minimum. All systems are constructed of modular components such that any system can be expanded in both length and width, moved or reconfigured in shape, without the need to discard or replace any parts of the original system.

B. Materials and workmanship : Components are fabricated of high quality, cold rolled carbon steel, free of scale or rust. Exposed edges and corners are free of sharpness or burrs and all workmanship is of the highest quality as measured by the industry. All components of the system are provided by the factory, complete and ready for installation. No purchase of additional parts or materials, nor cutting or fitting of parts in the field is required.

C. Mobile carriages : The wheel-housing member shall be constructed of no less than 12-gauge steel, at least 2 ¾” high x 2 ½” wide. The wheel-housing are welded to two (2) 14-gauge steel cross members 3” high x 1 ½” deep at the top and 7/8” at the bottom. Four-post shelving shall be attached to the carriage by vibration proof bolts. Design of the carriage is such that the weight-bearing of the upright rests directly over the wheel channels, thus transmitting the load directly to the rail. Top of the first shelf shall not be raised more than 6” above the existing floor. A built-in anti-tip system shall prevent the shelving from tipping.

D. Modular floor : The structural frame of the modular floor shall consist of aluminum sub-rail with a steel rail 1/8” x 7/8”, and reinforcement tubes. The deck shall consist of 5/8” plywood covered with commercial grade carpet. The reinforcement tubes shall be of no less than 16 gauge steel ¾” x 1 ½”. To facilitate moving or rearrangement of the installed mobile system, the rails and decking shall not require fastening in any manner to the building floor nor the use of any material or process damaging to the underlying surface. The system shall be equipped with built-in leveling device as follows: Each rail has pairs of leveling screws (one on each side of the centerline of the rail) spaced along the rail not more than 14" apart. The lower ends of the screws rest on a 14-gauge galvanized steel channel placed on the building floor and running the full length of the rails so as to prevent marring or gouging of the floor. Leveling screws are accessible from the top surface of the deck and may be adjusted at any time during installation or after the system is installed, fully loaded and in use. Deck panels are similarly equipped with levelers midway between the rails. No grout, cement, shims or any other material or process damaging to the floor is used. No removal of equipment or disassembly is required to make leveling adjustments.

Larger System will use same type of shelving but carriage system is heavy duty with a 5” wheel and carriage.

MATERIALS – MOBILE STORAGE UNITS

E. Basis of Design : Products are based upon Mechanical Movable Shelving Systems. Provide products complying with requirements of the following specifications and made by Montel Inc.

F. Grout

1. General : The compound shall be a hydraulic type cement which, when mixed with water, will harden to produce a permanent bolt setting anchor. The compound shall conform to the following specifications, all of which are based on the performance of the test specimens at room temperature and in laboratory air.

2. Linear Movement : It shall not shrink on setting, but shall exhibit a slight expansion of not more than .002 inch per linear inch.

3. Compression Strength : Two inch cubes made in accordance with ASTM standards tested on a Balding-Southward machine of 60,000 pounds capacity shall have the following minimum average compression strengths :

4. All tracks must be grouted the entire length of each run, including all rail joints. As the grout slightly expands during the cure process, it will be in permanent contact with the structural members being grouted. This will provide a continuous support to the system, and optimal weight distribution on the existing floor slab.

C. Track

1. Rails shall be designed and manufactured to carry loads of 1000 pounds per linear foot of carriage. Made of minimum cold rolled steel (CRS) rail assembly of ¾” high x 1” wide is inserted in an aluminum sub rail treated against oxidation caused by concrete. Rail contact surface shall be minimum 1” wide. Anti-tip device is required to meet local building code.

2. Rails shall be leveled with and not project above or below the walking surface.

3. Rails shall be designed to be anchored on top of structural concrete floor and to allow for adjustment so rails can be leveled over an uneven floor.

4. Maximum profile of recess adjacent to rail to accommodate manufacturer’s carriages guidance system and/or anti-tip system not exceeding 7/16” wide x ¾” deep.

5. All rail connection joints shall be designed to provide horizontal and vertical continuity between rail sections, to gradually transfer the concentrated wheel point load to and from adjoining sections.

6. Rail shall be located and positioned properly, leveled and grouted, allowing at least ¼” for grout under high point. Grout to be worked under rail, any voids completely filled and trimmed upsides and flush with rails. This will allow proper weight distribution from rail to existing slab.

7. Levelness of rails : 3/32” maximum variation from true level within any module; 1/16” maximum variation between adjacent rails, perpendicular to rail direction; 1/32” maximum variation in 10”-0” of rail length, along any rail.

8. Rails to be rechecked for integrity of position and levelness and anchored into structural concrete slab, using anchors in sizes and quantities as determined by manufacturer.

9. Main rail section shall be a minimum of 10”-0” each with shorter sections used to terminate each individual rail assembly.

D. Floor options 1 or 2

1. Floor/Ramp (Raised floor)

a. Finished elevation of the raised floor shall be flush with the top of the rails.

b. The ramp shall not extend beyond the end of the carriages and shall have a maximum slope of nine degrees. The vertical transition from the ramp edge to the floor shall be a maximum of 1/8”. Ramps shall extend under all movable and stationary ranges except as noted differently. Ramps shall be made of steel 12-gauge.

c. Floor panels shall be constructed of a minimum 5/8” or ¾” thick, underlayment grade plywood. Floor panels must be provided between all rails the full width of modules, except under stationary platforms.

d. The floor and ramp shall be constructed in a manner that will absolutely prevent any warping or deformation of the floor panels in a normal operating environment.

e. Floor covering is to be installed and supplied by the Owner.

E. Carriages

1. All carriages shall be riveted construction for flexibility. Welded carriages are unacceptable. Carriages and stationary platforms shall be constructed of minimum 12-gauge steel. 1000 pounds per linear foot minimum capacity.

2. Fixed carriages, as shown on the drawings, shall be of same construction and height as the movable carriages and anchored to rails. Setting of shelving on floor at ends of mobile runs in unacceptable.

3. Necessary carriage splices shall be bolted type designed to maintain proper unit alignment and weight load distribution.

4. Carriage straightness shall have no more than ¼” maximum deviation from a true straight line. There shall be no permanent set or slippage in any spiced or welded joint when exposed to forces encountered in normal operating circumstances.

5. Carriage construction shall be so designed to allow the shelving uprights to be secured to the carriage frame with vibration proof anchor assemblies (2 per upright).

6. Each carriage shall have two wheels per rail.

7. Carriages shall be powder coat or baked enamel finished (1.5 mil) inside and out. Color selection by Owner to match shelving. Powder coat paint finish is required for finish durability and elimination of any off gassing. Finish has to be inert, with no volatiles present in finished product. Visible galvanized steel structural carriage components are unacceptable.

F. Drive/Guide System (Mandatory) design.

1. Provide drive shaft minimum 1-5/16” o.d. tubular steel or 1” o.d. solid steel, driving all wheels on one side of each carriage to provide even carriage movement, even under unbalanced load conditions.

G. Wheels

1. Wheels shall be constructed of solid minimum 1045 cold rolled steel (CRS) for smooth operation. Minimum load capacity per wheel 3200 pounds. Wheels shall be precision ground, balanced. All bearings shall be permanently shielded and lubricated.

2. All wheels shall be minimum 5” diameter (outside dimension). They shall be double flanged and sloped to insure efficient guidance. Load wheels are spherical to reduce friction; drive wheels shall be flat.

3. Guide wheels shall be at all wheel locations.

G. Face Panels

1. All exposed face panels shall be steel (mandatory). End panels shall be full‑depth and height of shelving units. Panels to be located on all operating ends of ranges as shown on drawings.

H. Operation and Controls

1. The system shall be of the mechanical assist type having a chain sprocket drive system. A driving system is required to provide uniform movement along the total length of the carriage even with unbalanced loads on the carriage. The system shall be a positive drive to ensure that there is no play in the drive handle and that the carriage will stop without drifting. All components of the system shall be compatible for smooth non-jerking, even movement along the total length of the carriage. Drive system shall have a minimum gear ratio requiring 1 pound of pressure to move a load of 6000 pounds. All bearings used in the drive mechanism shall be permanently shielded and lubricated.

2. Operating handles shall be three-spoke type with steel spokes (single spoke handles unacceptable), approximately 17” diameter, which transmit power through a chain drive to the drive wheels. Provide operating handles on drive end of carriages as noted on drawings. Each mechanical device shall come with a chain-tensioning.

I. Safety options 1 or 2 or 3

1. Active safety (for single access) Shall consist of a locking pin located on the handle. The user has to push a knob which will then lock the respective carriage. Both carriages on each side of the aisle have to be secured.

Both systems will need to be priced installed.