Patent Application
20240044142
This invention relates to data center ceilings and roofs. More particularly, this invention relates to decking panels of data center ceilings and roofs and the support hardware of those data center ceilings and roofs to which hanging systems can be attached or “hung.”
Data center ceilings and roofs typically include a decking between a joist and an upper insulation assembly or concrete deck.
More specifically, a joist is first installed as a component of a data center ceiling or roof. A decking is installed on the joist. Next, if a concrete ceiling or roof is desired, concrete is poured on the decking, with the decking functioning as a form for the concrete. If a concrete ceiling or roof is not desired, insulation and membrane layers that, in combination, form an upper insulation assembly, may be attached directly on top of the decking.
The decking typically includes a plurality of decking panels, arranged edge-to-edge, that are rolled steel sheets having a shape such that the joist and the upper insulation assembly or concrete deck are spaced apart by the decking, to provide space between the joist and the upper insulation assembly or concrete deck.
One example of a suitable shape of the rolled steel sheets is a wave shape.
When the decking is used as a form for the concrete poured on the decking, the concrete will usually fill at least some of space created by the decking. If, instead, an upper insulation assembly is attached to the decking, the decking may be perforated, and the space may be at least partially filled, through the perforations, by noise-absorbing batting.
Frequently, it is desired to “hang” a hanging system from a data center ceiling or roof. The hanging system may support components of an aisle containment system, racks for service items, air conditioning ducts, etc. In a typical data center ceiling or roof, spaced struts, beam clamps or other hanging system structural support hardware are attached to the joists. The hanging systems are attached to those spaced struts, beam clamps or other structural support hardware.
However, that installation process in the field—installing decking on the joists, either pouring concrete on the decking or installing an upper insulation layer on the decking, and then attaching spaced struts, beam clamps or other structural support hardware to the joists to support hanging systems—is time consuming, labor intensive and can lead to installation errors. Accordingly, there exists a need to simplify that installation process, while reducing the risk of installation errors.
The pre-assembled decking panel and strut assemblies of this invention address those needs, and other needs that are known to those of skill in the art.
The pre-assembled decking panel and strut assemblies for data center ceilings and roofs of some embodiments of this invention each include a decking panel and an elongated strut member configured such that hanging systems can be attached to, or “hung” from, the elongated strut member. The decking panel may be a sheet metal in a shape of a wave, with peaks and valleys that (1) extend longitudinally in a first direction and (2) are parallel. The peaks and valleys may be spaced in a second direction that is perpendicular to the first direction. The elongated strut member may extend in the first direction and may have a top wall in a third direction perpendicular to the first and second directions, when viewed from the first direction. The top wall may be attached to a first peak of the decking panel. The top wall and the first peak may include spaced mating holes configured to receive bolt assemblies.
In certain embodiments of this invention, the decking panel has a first end peak at a first end of the panel in the second direction and a second end peak at a second end of the decking panel in the second direction. The top wall of the first elongated strut member may be attached to the first end peak and the second end peak may be configured to be placed on and mate with the first end peak of an adjacent decking panel. The second end peak may include spaced bolt holes that match the mating holes in the first end peak and the elongated strut member.
In yet other embodiments of this invention, the first end peak may be above the top wall of the elongated strut member and the second end peak is configured to be above the first end peak of the adjacent decking panel when the decking panel having the second end peak and the adjacent decking panel are installed.
Data center ceilings and roofs that include the pre-assembled decking panel and strut assemblies of this invention have at least the following benefits and advantages over prior art data center ceilings and roofs.
First, the installation process is simplified. Indeed, an entire step in the installation process—adding spaced struts, beam clamps or other structural support hardware to the joists to support hanging systems—may be eliminated. Because of the inclusion of the elongated struts in the pre-assembled decking panel and strut assemblies of this invention, no additional hardware is necessary to support the hanging systems.
Second, because the junctions of adjacent decking panels are at the peaks of those panels, the risk of water penetration at those junctions is reduced. That is, water sometimes collects in the decking, and, specifically, at the low points or valleys of the decking panels. By having the junctions of the adjacent decking panels be at peaks of those panels, rather than valleys, the risk of water passing through the junctions is reduced.
Third, because the decking panel and strut assemblies are pre-assembled, the installation of such is simplified. The individual decking panel and strut assemblies are manufactured off-site, shipped to a data center and installed as a unit.
As stated, the pre-assembled decking panel and strut assembly of one embodiment of this invention is illustrated in
In this embodiment of the invention, decking panel 22 is a roll-formed steel sheet having a wave shape. One example of a wave shaped, roll-formed steel sheet that can be utilized as the decking panel in this embodiment of the invention is Joris Ide product number JI85-280-1120.
Decking panel 22 has parallel, alternating hills 30 and valleys 32. Hills 30 and valleys 32 extend in a first direction and alternate in a second direction that is perpendicular to the first direction. Hills 30 include partial end hill 34 and end hill 36 at the opposite ends of decking panel 22 in the second direction. Partial end hill 34 has spaced holes 38 in its top wall and end hill 36 has spaced holes 40 in its top wall.
While decking panel 22 has a wave shape, decking panels having other shapes can be utilized in the decking panel and strut assemblies of other embodiments of this invention as long as such panels provide the desired spacing and structural stability between the ceiling joist and the upper insulation assembly or concrete deck, as explained below. In addition, while decking panel 22 has partial end hill 34 and end hill 36 at its ends in the second direction, such ends of the decking panels of the decking panel and strut assemblies of other embodiments of this invention may have other shapes, as long as the ends can be sufficiently attached to struts, as also explained below.
Strut 24 includes top wall 42 and side walls 44 and 46, which extend downward from opposite edges of top wall 42. Side walls 44 and 46 include lower hook portions 48 and 50, respectively. Top wall 42 has spaced bolt holes 52.
While the decking panel and strut assembly of this embodiment of the invention includes strut 24 having the cross-sectional shape described above and illustrated in the figures, the struts of the decking panel and strut assemblies of other embodiments of this invention may have different cross-sectional shapes, as long as the struts having the different cross-sectional shapes can be joined to the decking panels and have sufficient structural strength and stability.
Top wall 42 of strut 24 is attached to partial end hill 34 by spot welding around bolt holes 52 of top wall 42 and spaced holes 38 in the top wall of partial end hill 34, as shown in
Adjacent pre-assembled decking panel and strut assemblies 20 can be assembled as shown in
Specifically, the assembly of pre-assembled decking panel and strut assemblies 20, 20′ and 20″ is illustrated in
Decking panels 22′ and 22″ are the same as decking panel 22.
Similar to strut 24, strut 26 includes top wall 54 and side walls 56 and 58, which extend downward from opposite edges of top wall 54. Side walls 56 and 58 include lower hook portions 60 and 62, respectively. Top wall 54 has spaced bolt holes 64.
In the assembly of pre-assembled decking panel and strut assemblies 20, 20′ and 20″ illustrated in
More specifically, bolt assemblies 28 include bolts 66 and nuts 68. As shown in
Similarly, as shown in
In some embodiments of the pre-assembled decking panel and strut assemblies of this invention, nuts 68 can be fixedly attached to the underside of the walls 42 and 54 of struts 24 and 26 at holes 52 and 64, respectively, or holes 52 and 64 may be threaded holes with threads that mate with the threads of bolts 66, so that bolts 66 can be attached by simply rotating bolts 66, without having to separately support nuts 66.
As stated, the decking panel and strut assemblies of this invention can be pre-assembled off-site and then shipped to a data center for installation in the ceiling or roof of that data center. That pre-assembly results in the benefits and advantages discussed above.
One application of this invention is illustrated in
Outer deck 74 includes insulation board 78, vapor layer 80 and outer membrane 82. In other applications, outer deck 74 can be a concrete deck or an additional concrete deck can be on top of outer deck 74.
Steel web joist 76, which is known as a high deck profile, includes top angles 84, bottom angles 86 and connecting rebars 88 which extend between and connect top angles 84 and bottom angles 86.
While this application includes steel web joist 76 having the configuration illustrated in
What is described and illustrated herein are preferred embodiments of the invention with some variations. The descriptions, figures and phraseology is intended to be for exemplary illustration only, and are not meant as limitations. Those skilled in the art will recognize that many embodiments and variations of the invention are possible, as the invention is defined by the following claims.
