HP rp3440 Site Preparation Guide, Fifth Edition - HP 9000 rp3410/rp3440 - Page 32

General Site Preparation Guidelines Facility Characteristics Table 2-2 Floor Loading Term Definitions (Continued) Term Concentrated load Ultimate load Definition The load that a floor panel can support on a 1-in2 (6.45-cm2) 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 The maximum load (per floor panel) that the floor system can support without failure. Failure expressed by floor panel(s) breaking or bending Rolling load Average floor load 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 HP 9000 rp3410 or HP 9000 rp3440 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 HP 9000 rp3410 or HP 9000 rp3440 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/ft2 (34.2 kg/m2) 313 lb/ft2 (1528.3 kg/m2) 1250 lb (567 kg) 32 Chapter 2