HP Integrity rx5670, Site Preparation Manual

Page: 27 / 46

General Site Preparation Guidelines
Facility Characteristics
Chapter 2
27
Floor Loading Terms
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 hp Integrity rx5670 footprint.
Typical Raised Floor Site
This section contains an example of a computer room raised floor system that is satisfactory for the
installation of an hp Integrity rx5670.
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 2-2 Floor Loading Term Definitions
Term Definition
Dead load The weight of the raised panel floor system, including the understructure.
Expressed in lb/ft
2
(kg/m
2
).
Live load
The load that the floor system can safely support. Expressed in lb/ft
2
(kg/m
2
).
Concentrated load
The load that a floor panel can support on a 1-in
2
(6.45 cm
2
) area at the panel’s
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 panel(s) 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/ft
2
(kg/m
2
).
Table 2-3 Typical Raised Floor Specifications
Item
a
Rating
Dead load
7 lb/ft
2
(34.2 kg/m
2
)
Live load
313 lb/ft
2
(1528.3 kg/m
2
)