Aluminum Aisle Protection for Raised Floor Load Distribution
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Solution Overview
Problem
Existing solutions for protecting raised access floor panels from damage caused by dynamic rolling loads of server racks in data centers are inadequate, as they often lead to damage, seam deflection, and reduced load-bearing capacity due to the use of materials like plywood and Masonite, which are prone to breakdown and do not effectively manage the high caster point loads.
Innovation Solution
A portable containment system comprising interlocking non-compressible rectangular plate members with smooth surfaces and interlocking formations, designed to form a protective aisle that spans the seams between raised floor panels, utilizing 0.635 cm thick 5052 grade Aluminum plates to support high rolling loads and prevent deflection, with ramp rails for easy ingress and egress of server racks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If plywood or Masonite is used as aisle protection overlay, then floor protection is provided, but the material breaks down and entrains contaminants, and seams suffer impact point deflection damage
Solution Approach 1:
The patent changes the material parameter from organic materials (plywood, Masonite) to inorganic aluminum plate material. This parameter change eliminates the breakdown and contaminant entrainment issues while maintaining protective function. The aluminum material is specifically chosen to be non-compressible and resistant to degradation under caster wheel loads.
Solution Approach 2:
The patent uses aluminum plate material that combines multiple desirable properties: non-compressibility for load bearing, smooth surface for caster wheel rolling, and interlocking capability for seam reinforcement. This composite approach within a single material system addresses multiple failure modes simultaneously.
2Adaptability or versatility
If plywood sheets are cut to narrow widths less than 101 cm to comply with ADA aisle width, then aisle width compliance is achieved, but the load bearing capacity and integrity of the protective sheets decrease
Solution Approach 1:
The patent segments the protective aisle into multiple aluminum plate members that interlock together. Each plate member is designed with specific dimensions to span floor panel seams, and they connect via interlocking formations at their peripheral edges. This segmentation allows the system to fit ADA-compliant narrow aisle widths while maintaining overall structural integrity through the interlocked assembly.
Solution Approach 2:
The patent adds the vertical dimension to the protective system by creating raised edges and interlocking formations that extend upward from the plate surfaces. This dimensional addition allows the plates to interlock vertically, reinforcing the seams and preventing deflection without requiring wider plate dimensions, thus maintaining ADA compliance.
3Ease of operation
If castor wheel assemblies with high point loads (up to 907 kg) are used to move server racks, then server rack mobility is achieved, but the extreme loads penetrate and cause significant damage to floor panel surfaces
Solution Approach 1:
The patent introduces aluminum plate members as an intermediary protective layer between the castor wheel assemblies and the raised floor panels. This intermediary absorbs and distributes the extreme point loads from the castors, preventing penetration damage to the floor panels while allowing the castors to roll freely on the smooth plate surfaces.
Solution Approach 2:
The patent provides beforehand protection by placing the non-compressible aluminum plate members on the floor panels before moving the server racks. These plates are positioned in advance to cover the entire aisle path, ensuring that when the heavy castor-loaded server racks are moved, the floor panels are already protected from impact and penetration damage.
4Temperature
If perforated air-grate floor panels are used for cooling air flow, then thermal management is improved, but the air-grate surface inhibits free rolling of caster wheel assemblies during delivery or installation
Solution Approach 1:
The patent uses the aluminum plate members as an intermediary surface that decouples the conflicting requirements. The plates provide a smooth rolling surface for castor wheels while allowing cooling air to pass through the perforated floor panels underneath. This intermediary layer resolves the conflict between needing smooth surfaces for rolling and perforated surfaces for air flow.
Data Source
AI summary
A portable aisle protection system is provided. The system includes interlocking rectangular plate members capable of interconnecting in an aisle forming relationship. Each of the plate members has a smooth non-compressible top rolling surface, bottom and four sides. The four sides define peripheral edges. Three of the peripheral edges have interlocking formations. Non-compressible ramp rails have an inclined leading portion and a trailing edge. The inclined portion establishes an upward inclined plane, and the trailing edge includes interlocking formations adapted for interfitting butting engagement of the trailing edge with the respective peripheral edges of the plate members so that the ramp rails are capable of providing ingress and egress to the load protecting aisle formed by the plate members.