HP Integrity rx8620 Site Preparation Guide, Fourth Edition - HP Integrity rx86 - Page 36

Table 2-3, Typical Raised Floor Specifications, Table 2-2, Floor Loading Term Definitions Continued

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General Site Preparation Guidelines Facility Characteristics Table 2-2 Floor Loading Term Definitions (Continued) Term Concentrated load Ultimate load Rolling load Average floor load Definition The load that a floor panel can support on a 1-in2 (6.45-cm2) area at the panels weakest point (typically the center of the panel), without the surface of the panel deflecting more than a predetermined amount. The maximum load (per floor panel) that the floor system can support without failure. Failure expressed by floor panels breaking or bending. Ultimate load is usually stated as load per floor panel. The load a floor panel can support (without failure) when a wheel of specified diameter and width is rolled across the panel. Computed by dividing total equipment weight by the area of its footprint. This value is expressed in lb/ft2 (kg/m2). Average Floor Loading The average floor load value is not appropriate for addressing raised floor ratings at the floor grid spacing level. However, it is useful for determining floor loading at the building level, such as the area of solid floor or span of raised floor tiles covered by the server footprint. Typical Raised Floor Site This section contains an example of a computer room raised floor system that is satisfactory for the installation of a server. Based on specific information provided by HP, Tate Access Floors has approved its Series 800 all-steel access floor with bolt-together stringers and 24 in. (61.0 cm) by 24 in. (61.0 cm) floor panels. In the event that the flooring is being replaced or a new floor is being installed, Tate Access Floors recommends its Series 1250 all-steel access floor with bolt-together stringers and 24 in. (61.0 cm) by 24 in. (61.0 cm) floor panels be used to support the hp installation. NOTE If the specific floor being evaluated or considered is other than a Tate Series 800 floor, the specific floor manufacturer must be contacted to evaluate the floor being used. The following table lists specifications for the Tate Access Floors Series 800 raised floor system. Table 2-3 Typical Raised Floor Specifications Itema Dead load Live load Concentrated loadb Rating 7 lb/ft 2 (34.2 kg/m2) 313 lb/ft 2 (1528.3 kg/m2) 1250 lb (567 kg) 30 Chapter 2

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Chapter 2
General Site Preparation Guidelines
Facility Characteristics
30
Average Floor Loading
The average floor load value is not appropriate for addressing raised floor ratings at the floor grid spacing
level. However, it is useful for determining floor loading at the building level, such as the area of solid floor or
span of raised floor tiles covered by the server footprint.
Typical Raised Floor Site
This section contains an example of a computer room raised floor system that is satisfactory for the
installation of a server.
Based on specific information provided by HP, Tate Access Floors has approved its Series 800 all-steel access
floor with bolt-together stringers and 24 in. (61.0 cm) by 24 in. (61.0 cm) floor panels.
In the event that the flooring is being replaced or a new floor is being installed, Tate Access Floors
recommends its Series 1250 all-steel access floor with bolt-together stringers and 24 in. (61.0 cm) by 24 in.
(61.0 cm) floor panels be used to support the hp installation.
NOTE
If the specific floor being evaluated or considered is other than a Tate Series 800 floor, the
specific floor manufacturer must be contacted to evaluate the floor being used.
The following table lists specifications for the Tate Access Floors Series 800 raised floor system.
Concentrated load
The load that a floor panel can support on a 1-in2 (6.45-cm2)
area at the panels weakest point (typically the center of the
panel), without the surface of the panel deflecting more than
a predetermined amount.
Ultimate load
The maximum load (per floor panel) that the floor system can
support without failure. Failure expressed by floor panels
breaking or bending.
Ultimate load is usually stated as load per floor panel.
Rolling load
The load a floor panel can support (without failure) when a
wheel of specified diameter and width is rolled across the
panel.
Average floor load
Computed by dividing total equipment weight by the area of
its footprint. This value is expressed in lb/ft2 (kg/m2).
Table 2-3
Typical Raised Floor Specifications
Item
a
Rating
Dead load
7 lb/ft 2 (34.2 kg/m2)
Live load
313 lb/ft 2 (1528.3 kg/m2)
Concentrated load
b
1250 lb (567 kg)
Table 2-2
Floor Loading Term Definitions (Continued)
Term
Definition