Floor Loads Imposed
After preliminary system analysis, Peterson Group will submit system layouts for your consideration. Data will be provided such as:

Due to the relatively slow movement of carriages and controlled acceleration and deceleration, impact loads to the floor structure are negligible and need not be considered for Spacesaver mobile systems.

Rail Layout Flexibility
Even distribution of the heaviest floor loads is accomplished through flexibility of Spacesaver rail layout. The engineer is free to locate rails at practical load bearing points (rails can be located in any increment between 3' and 7' [914mm - 2133mm] as standard) or as required by specific applications to meet load conditions or overcome structural restraints.

Preferred Systems Orientation
When evaluating floor loads imposed by Spacesaver systems, initial layouts may yield conditions not meeting your exacting criteria. However, because of Spacesaver's rail size selections and its unique ability to be reoriented directly over load-bearing points, satisfactory loading may be accomplished.

Standard Rail Placement
The flexibility of the Spacesaver rail system allows the designer a full selection of choices to distribute the imposed floor loads. By adjusting rail placement and spacing, increased loads may be accommodated.

                               

Load Footprints
A load footprint is the total area of the storage system area including the access entry aisles. The entire footprint should be used in your calculations to determine floor loads imposed.

Rail Load Distribution
Normally, Spacesaver high density storage systems are planned with rail placement for equal rail loads. However, the designer is free to develop unequal rail loading, if conditions are more advantageous for load transfer.

Relocation of Systems
Occasionally, a system's weight may be greater than a bay's allowable load capacity. For example, placement of a system weighing 44,000 lbs. (19,958kg) into a bay designed for only 40,000 lbs. (18,143kg) may be handled by repositioning the system directly over a girder between the adjacent bay and by adding a fourth rail. (See illustration.) Thus, 22,000 lbs. (9,979kg) is carried by each bay allowing the remaining space to be utilized for conventional office use. In the case of this example, the bays involved would be restricted to that single system application.



Cantilever Variations
Carriages may be cantilevered prior to their initial support and/or beyond their last support point in order to transfer load to a structural member.



Typical Floor Conditions
Illustrated below are typical floor loading conditions with ideal rail placements.

  
Bar Joist Floor                                                           Raised Access (Computer) Floor

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