MXPA98001678A - Equipment platforms resistant to the sis - Google Patents

Abstract

A platform for earthquake-resistant equipment is provided, which can be used to stabilize the equipment during a seismic event, or to provide selective seismic stability within a conventional raised floor. The platform for equipment, earthquake-resistant, described, comprises an arrangement of pedestals interconnected by the mounting plates of the equipment. Each pedestal includes a base that is mounted in the basement, a column that is mounted to the base, and a pedestal head which is mounted to the column. In addition, each pedestal head is configured to accept a portion of a mounting plate of the equipment, as well as various beams that can be used to support conventional floor panels. The pedestals are constructed to have sufficient rigidity to operatively transfer the rigidity of the subfloor to the mounting plates of the equipment interconnecting said pedestals. In addition, the mounting plates of the equipment are manufactured to have sufficient rigidity, to guarantee the treatment of each mounting plate of the equipment, like a rigid body, so that the rigidities of the pedestals are added when the pedestals are interconnected by the plates Assembly of the equi

Description

EQUIPMENT PLATFORMS RESISTANT TO EARTHQUAKES BACKGROUND OF THE INVENTION This invention relates to platforms of equipment resistant to earthquakes. The earthquake-resistant aspect of the invention refers specifically to specially designed equipment platforms, which maintain their structural integrity during seismic events, and thus have improved seismic stability (eg, greater stability during a seismic event). . The equipment mounted on such equipment platforms is thus better protected from damage during seismic events, because these equipment platforms are capable of resisting seismic events of a greater magnitude than previously known platforms. Specifically, these equipment platforms, of the invention, are suitable for seismic sites of zones 0-4, which have satisfied all the relevant requirements of the GR-63-CORE requirements of Bellecore Network Equipment Construction Systems (Bellecore Network Equipment Building Systems (NEBS)) (NEBS PR-NWT-0063). Examples of equipment that can be protected by such equipment platforms include REF: 26683 telecommunications equipment, computer equipment, shelf-mountable electronic equipment, pharmaceutical processing equipment, and any other form of electronic or laboratory equipment. The term "seismic event" used herein refers to an earthquake or other terrestrial vibration that produces seismic waves (e.g., P waves, S waves, Love waves or Rayleigh waves) which directly or indirectly agitate, vibrate, twist , displace or similarly disturb the structures of the earth's surface (for example, buildings, bridges, houses, etc.). The term "earthquake resistant" as used herein, refers to the characteristic or property of being resistant to damage during a seismic event (for example, which is resistant to damage when agitated, vibrated, twisted, displaced or disturbed in a real way). In telecommunications and computing facilities, raised floors are frequently used to support equipment, while providing space between a subfloor (the floor on which the raised floor is mounted) and the raised floor for the wiring equipment and auxiliary equipment (for example, heating and cooling equipment). A wide variety of raised floors are available, and are very suitable for use in stable environments which lack seismic activity. Most raised floors consist of a plurality of pedestals placed in a rectangular array at regular spacings, and interconnected by a plurality of parallel beams (eg, spars formed by box or roller (hereafter "stringers")). Each pedestal usually consists of a base, a column, and a pedestal head, with the base of each pedestal that is bolted or glued to the subfloor on which the raised floor is to be constructed. The stringers are normally mounted between the attached pedestal heads. A plurality of floor panels, removable, are then extended between adjacent spars. These floor panels can be attached to the pedestal heads or left floating freely on the side rails. In this way, a complete raised floor can be built. Seen as a whole, such floor is essentially a plurality of beams supported cantilevered (for example, the plurality of pedestals) interconnected by floor panels and / or stringers. While these floors work well in areas free of seismic activity (eg, stable environments), few have been designed to withstand the substantial forces present during a seismic event. Because each pedestal acts as a cantilevered beam, the bending moment of each pedestal is larger at its base. Therefore, during a seismic event, the base of each pedestal is more likely to fail first, each pedestal, snaps into its base (if it is constructed of a fragile material) or that forms a plastic hinge at its base when the bending moment becomes equal to the fully plastic moment of the pedestal (if it is constructed of a material ductile). In any case, most raised floors will collapse or experience some other form of catastrophic failure during a large seismic event, necessarily damaging any equipment mounted on these raised floors. (Such floors are therefore called "non-seismic" floors). In addition to the non-seismic floors described above, there are a number of raised floors, which provide some seismic stability, but at an insufficient level to protect the typically encountered heavy equipment from telecommunications at zone 4 seismic sites (eg, insufficient seismic stability). to reset up to 907 kg (2000 pounds) of force at any resonant frequency). Typically, the seismic stability is introduced to a raised floor by providing supplementary clamping between the pedestals of the raised floor and the subfloor to which the pedestals are mounted, to selectively reinforce each pedestal base, or substantially by increasing the diameter of each pedestal. (which also reinforces each pedestal base). While they are somewhat effective in protecting large area equipment during seismic events, both techniques significantly reduce the amount of space available for wiring equipment and auxiliary equipment below the raised floor, and both are unable to withstand the load demands of much of the equipment used in the telecommunications industry (particularly small area, equipment type of shelf frame). (For convenience, hereafter, non-seismic floors and other raised floors that have insufficient seismic stability for heavy equipment applications are collectively referred to as "conventional" raised floors and the various components comprising such conventional raised floors are referred to as components "conventional" (e.g., conventional pedestals, conventional floor panels, conventional pedestal heads, and the like)). One method to build a high earthquake-resistant floor, which is suitable for use with telecommunications equipment, is to uncouple the elevated pipe from the sub-floor on which it is mounted. Such a method is described in U.S. Patent No. 4,922,670 to Naka et al. (Hereinafter "the 670 patent"). The 670 patent describes a high earthquake-resistant floor, where floor pedestals, stringers, and floor panels are interconnected to form a rigid body which is decoupled from the subfloor by pivot points at the base of each pedestal . While this configuration successfully reduces the high bending moment that could otherwise be present at the base of each pedestal (for example, the place where the bending moment of each pedestal could be the largest if each pedestal were rigidly coupled to the pedestal). subsoil), such configuration lacks lateral support due to the decoupling of the pivot point. A complete seismic floor of this type may have to be constructed to obtain lateral support of the walls of the room in which the floor is located. If a free-standing platform were built, in accordance with the teachings of the? 670 patent, without attaching the platform to any of the walls, the platform would have no lateral support (since it can pivot at the base of each pedestal) and as such it may not be resistant to earthquakes. Because the entire floor described in the 670 patent must be constructed in order to provide protection during a seismic event, a major drawback of the raised floor of the 670 patent is the cost of building a full floor, which is resistant to earthquakes when such protection is only required in areas where the equipment is placed. There is therefore a need for a high platform resistant to earthquakes, which does not require that a full floor is built, resistant to earthquakes. An objective of this invention is therefore to provide a platform for equipment, resistant to earthquakes, which does not require supplementary lateral support. A more particular objective of this invention is to provide a platform for equipment, resistant to earthquakes, which is not decoupled from the subsoil on which it is mounted.

A further objective of the present invention is to provide a platform for earthquake-resistant equipment, which can be coupled to a conventional raised floor, to provide selective seismic stability within the conventional raised floor.

BRIEF DESCRIPTION OF THE INVENTION These and other objects of the invention are achieved in accordance with the principles of the invention by providing a platform resistant to earthquakes, for equipment, which can be used to stabilize the equipment during a seismic event. The earthquake-resistant equipment platform of the present invention provides an arrangement, usually rectangular, of pedestals interconnected by the mounting plates of the equipment. Each pedestal includes a base which is mounted to a subfloor, a column that is mounted to the base, and a pedestal head which is mounted to the column. In addition, each pedestal head is configured to accept a portion of a mounting plate of the equipment. As an example, a platform for equipment containing a simple equipment mounting plate can be constructed by coupling four pedestals to a subfloor (for example, each pedestal base is bolted to the subfloor) in a rectangular array and by mounting each corner of the equipment mounting plate, to a different one of the four pedestal heads. In this way, a platform for equipment is formed, consisting of four pedestals mounted to a subsoil, and interconnected by a mounting plate of the equipment. Larger equipment platforms are built by adding more pedestals and more equipment mounting plates. The size of the equipment platform is dictated by the footprint or area occupied by the equipment to be mounted on the equipment platform, with the additional area provided if necessary to effectively mount the equipment on the platform. To make these platforms for earthquake-resistant equipment, the pedestals are constructed to have sufficient rigidity to operatively transfer the rigidity of the sub-floor to the mounting plates of the equipment interconnecting said pedestals. That is, a piece of equipment will experience substantially the same level of seismic stability whether it is mounted directly to a subfloor or mounted to a mounting plate of equipment which is part of an equipment platform coupled to the subfloor.

In addition, the equipment mounting plates are manufactured to have sufficient rigidity to guarantee the treatment of each equipment mounting plate as a rigid body (for example, the equipment mounting plates are of sufficient rigidity so that the deformations of the plates are negligibly small, such deformations can therefore be neglected during the analysis of forces). By making each equipment mounting plate a rigid body, the stiffness of the pedestals is added when the pedestals are interconnected by the mounting plates of the equipment. For example, if each pedestal is stiff enough to resiliently reset 227 kg (500 pounds) of force to any resonant frequency, a platform for equipment constructed of four pedestals interconnected by an equipment mounting plate (with sufficient rigidity to ensure the analysis of the rigid body), will elastically reset 907 kg (2000 pounds) of force to any resonant frequency. In this way, small, individual-sized pedestals, which are unable to re-establish a desired force, can be combined to form a platform for equipment, which is capable of restoring the desired force (for example, capable of restoring sufficient force). to resist relatively large seismic events). In addition, each pedestal is made of a ductile material which undergoes substantial plastic deformation when it is overloaded, instead of breaking when the tensile strength, maximum, of the material of the pedestal, is reached. In this way, even if the pedestal is not elastically deformed, it will still bear a load (for example, the failure mode of each pedestal is "substantially plastic"). The equipment placed on these equipment platforms can be mounted directly or indirectly to the equipment mounting plates. The equipment is therefore protected from damage during seismic events, until the same platforms for the equipment fail. Another highly desirable feature of the present invention is that it allows earthquake-resistant equipment platforms to be placed within a conventional raised floor. The pedestal heads are configured to accept the various stringers used in conventional raised floor systems (to support conventional floor panels), as well as the equipment mounting plates of the present invention. In this way, the equipment mounting plates can be used only where necessary (for example, below the equipment) and the conventional floor panels, cheap, can be used to complete the raised floor. In a preferred embodiment, each cluster of equipment mounting plates, resistant to earthquakes, is only coupled to the conventional raised floor, remaining. The additional features of the invention, its nature and various advantages, will be apparent from the accompanying drawings and from the following detailed description of the preferred embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of an earthquake-resistant equipment platform, illustrative, made in accordance with this invention.

Figure 2 is a cross-sectional view of an earthquake-resistant pedestal, made in accordance with this invention.

Figure 3 is a cross-sectional side view and a top view of an earthquake-resistant pedestal head, made in accordance with this invention.

Figure 4 is a top view of an equipment mounting plate made in accordance with this invention.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES In the illustrative embodiment shown in Figure 1, a platform 100 for equipment, resistant to earthquakes, is constructed from a plurality of earthquake-resistant pedestals 200, interconnected by the equipment mounting plates 240. Each earthquake-resistant pedestal 200 comprises a base plate 210 bolted to a sub-floor (not shown) via a plurality of anchor bolts 212, a column 220 coupled to the base plate 210, and a pedestal head 230, resistant to the earthquakes, coupled to the column 220. The equipment mounting plates 240 are secured to the pedestal heads 230 with hexagonal screws 242 (hereinafter "hexagonal screws 242") to form a rigid platform for equipment comprising at least four pedestals 200 resistant to ios, and at least one mounting plate 240 for equipment. A plurality of stringers 250 can also be interconnected between earthquake-resistant pedestals 200, to allow conventional floor panels 260 to be replaced by mounting plates 240 for equipment, as described below. Figure 2 shows a cross-sectional view of the earthquake-resistant pedestal 200. As seen in Figure 2, each base plate 210 is anchored to a sub-floor (not shown) via the anchor bolts 212. In a preferred embodiment, the anchor bolts 212a are used at the sites of seismic zone 0 and seismic zone 1, and may comprise, for example, the anchors HILTI-3/8"KWIK-CON, while the anchor bolts 212b are used in the sites of seismic zone 2-4, and may comprise, for example, the anchors of heavy duty metric expansion HILTI-HSL M 10/20 It is understood that other anchoring means may be used Coupled to base plate 210, preferably by a 360 ° weld, is column 220. Column 220 comprises an axis substantially hollow with a threaded receptacle 222, at one end (for rigidly coupling the head 230 of the seismic pedestal to the column 220, to complete the pedestal 200 resistant to earthquakes, as described below.) In a preferred embodiment, the column 220 is built a ductile material, whereby the earthquake-resistant pedestal 200 is provided with a substantially plastic failure mode. In addition, column 220 is preferably provided with sufficient rigidity to resiliently restore at least a quarter of the force that is likely to be experienced by an earthquake-resistant equipment platform (support equipment) during a seismic event at a site of zone 4 (when column 200 is used as part of the platform for earthquake-resistant equipment). Figure 3 shows a side view in cross section and a top view of the pedestal head 230 resistant to earthquakes. The earthquake-resistant pedestal head 230 comprises a pedestal head plate 232 coupled to a threaded pedestal head shaft 234, and a securing nut 236. The pedestal head plate 232 further comprises threaded holes 238a (for mount the equipment mounting plates 240 to the head 230 of earthquake-resistant pedestal, via hexagonal screws 242) and threaded holes 238b (to mount the stringers 250 to the head 230 of pedestal resistant to earthquakes).

In operation, the axle 234 of the threaded pedestal head is screwed into the threaded receptacle 222 of the column 220 with the securing nut 236 positioned within the bottom of the pedestal head plate 232 (to allow the pedestal to rotate). -e 234 of the pedestal head). Once a desired pedestal height is reached, the height of pedestal 200 resistant to earthquakes is verified relative to the height of the other pedestals 200 resistant to earthquakes, which will be part of the equipment platform 100, resistant to the earthquakes, to determine if the platform 100 of equipment, resistant to earthquakes, will be level. If the earthquake-resistant equipment platform 100 is part of a floor system (for example, if the earthquake-resistant equipment platform 100 is located within a conventional raised floor), the height of the pedestal 200 is resistant to earthquakes. The earthquakes are verified in relation to the height of all the other pedestals, which will be part of the floor system. (The level can be verified, for example, by using a laser beam). The leveling of the earthquake-resistant equipment platform 100 is carried out by rotating the threaded shafts 234 of the pedestal head of the earthquake-resistant pedestals 200, until the heights of the pedestals 200 are resistant to earthquakes. The earthquakes are substantially identical. In this way, the height of each earthquake-resistant pedestal 200 is individually adjusted, and the equipment platform 100, resistant to earthquakes, is then leveled. Preferably, the securing nut 236 is not pressed against the column 220 (thus allowing the additional rotation of the threaded shaft 234 of the pedestal head) until the equipment mounting plates 240 have been bolted to the heads 230 of pedestal via the hexagonal screws 242. However, once the securing nut 236 has been tightened against the column 220, the securing nut 236 serves the dual purpose of preventing the subsequent rotation of the threaded shaft 234 of the pedestal head, and eliminating the "vertical vibration" (e.g., up and down movement of the threaded shaft 234 of the pedestal head within the column 220, during a seismic event due to the spacings between the threads of the threaded shaft 234 of the head of pedestal) inside each pedestal 200 resistant to earthquakes. It should also be noted that conventional pedestal heads (not shown) can be used with the bases 210 and the columns 220, if desired, to form pedestals to support the conventional floor panels. For such pedestals, the securing nut 236 is replaced with a leveling nut, which is threaded onto the threaded shaft of each conventional pedestal head, and which rests against the top of the column 220 to adjust the height of each pedestal. In this way, the height of each pedestal is adjusted by adjusting each conventional pedestal head leveling nut. Preferably, the conventional pedestal heads are left loosely coupled to the columns 220 (eg, simply by inserting conventional pedestal heads into the columns 220, instead of holding the pedestal heads to the columns 220) so that a conventional raised floor formed from such pedestals is decoupled from columns 220 and from bases 210 (to relieve stress on any equipment platforms, resistant to earthquakes, coupled to the conventional raised floor). Figure 4 shows an illustrative embodiment of the mounting plate 240 of the equipment. Each mounting plate 240 of the equipment is preferably substantially rectangular (although other shapes such as triangular, pentagonal, or hexagonal) may be used and is preferably constructed of a material (e.g., aluminum) with sufficient rigidity to make the deformations of the mounting plate of the equipment negligible during loading due to seismic events (for example, each mounting plate of the equipment can be treated as a rigid body and deformations of the equipment plate can be despised during the strength analysis). Because in the preferred embodiment the mounting plates 240 of the equipment are constructed of solid aluminum, the mounting plates 240 of the equipment weigh more than most of the floor panels 260, conventional(which are typically formed of sheet metal covered with a plastic surface or similar materials). To reduce the additional weight provided by each mounting plate-240 of the equipment, the material is removed from the back side of each equipment mounting plate (as described by sites 241 of Figure 4) .The weight of each plate of equipment assembly is further reduced by machining a flange 243 along the underside of the outer edges of each mounting plate 240 of the equipment, which allows each mounting plate 240 of the equipment to be mounted to the heads 230 of pedestal without being obstructed by the stringers 250.

Each mounting plate 240 of the equipment further comprises a plurality of holes 244 for mounting the pedestal, the mounting areas 246 of the equipment, the covers 247 of the wiring area and the wiring areas 248. The holes 244 for mounting the pedestal, placed preferably on the outer corners of the mounting plate 240 of the equipment, they allow the mounting plate 240 of the equipment to be secured to the earthquake-resistant pedestals 200 by screwing the hexagonal screws 242 through the mounting holes 244 of the pedestal in the threaded holes 238a of the plate 232 of the pedestal head. The equipment mounting areas 246 allow the equipment or equipment shelves to be housed to the mounting plate 240 of the equipment by drilling through the mounting plate 240 of the equipment, at these sites, and then by coupling the equipment to the mounting plate 240 of the equipment, with any number of fastening means known in the art. The wiring areas 248 are provided for wiring the equipment and comprise openings in the mounting plate 240 of the equipment for laying cables through the mounting plate 240 of the equipment (e.g., area 248a of Figure 4). which can be covered by the covers 247 of the wiring area, when not in use (as shown in area 248b of Figure 4), the covers 247 of the wiring area that are attached to the mounting plate 240 of the equipment via screws 249 of the cable cover. Equipment platforms, resistant to earthquakes are therefore constructed as follows: a plurality of earthquake-resistant pedestals 200 are mounted to a sub-floor via the anchor bolts 212. The height of the pedestal head 230 on each pedestal 200 , is adjusted to provide a level surface for the mounting plates 240 of the equipment. The equipment mounting plates 240 are then rigidly mounted to the earthquake-resistant pedestals 200 by screwing hexagon nuts 242 through the pedestal mounting holes 244 (of each equipment mounting plate 240) into the holes threaded 238a of the pedestal head plates 232 (of the pedestal heads 230, earthquake-resistant). The securing nut 236 on each threaded shaft 234 of the pedestal head is then tightened. By rigidly coupling the earthquake-resistant pedestals 200 to a sub-floor and interconnecting these pedestals by means of the mounting plates 240 of the equipment, the rigidity of the sub-floor is operatively transferred to the mounting plates 240 of the equipment (for example, one piece of equipment will experience substantially the same level of seismic stability whether it is mounted directly to the sub-floor or mounted to a mounting plate 240 of the equipment, of the platform 100 resistant to earthquakes). Note that the effective rigidity of the subfloor (which may be tens of thousands of kilograms or pounds for a concrete floor) is not transferred to the mounting plate 240 of the equipment; the rigidity adequate to the support equipment (eg, approximately 907 kg (two thousand pounds) in a preferred embodiment) is transferred to the mounting plate 240 of the equipment. further, because each mounting plate of the equipment is sufficiently rigid to constitute a rigid body, the rigidity of the pedestals 200 is added when the pedestals 200 are interconnected by the mounting plates 240 of the equipment. In this way, the complete rigidity of the platform 100 of the equipment is equal to the sum of the rigidities of all the pedestals 200 interconnected by the mounting plates 240 of the equipment. In addition to being used as self-supporting platforms, the earthquake-resistant equipment mounting platforms of the present invention can be used to provide selective seismic stability to a conventional raised floor. The pedestal heads 230 are configured to accept the equipment mounting plates 240 (via the threaded holes 238a) and the various side members 250 (via the threaded holes 238b) used to support the conventional floor panels 260 in floor systems elevated conventional. It is understood that the pedestal heads 230 can also be configured to allow the conventional floor panels 260 to be mounted directly to the pedestal heads 230, or alternatively, so that the conventional pedestal heads (which are already configured to accept conventional floor panels 260) may be used in conjunction with bases 210 and columns 220 to form pedestals (as previously described). In any case, the mounting plates 240 of the equipment can be used only where necessary (for example, below the equipment) and the conventional, cheap floor panels 260 can be used to complete a raised floor. In a preferred embodiment, each cluster of earthquake-resistant equipment mounting plates 240 is loosely coupled to the conventional raised floor, remaining. In this way, the equipment mounting platforms are only required to support the equipment and not the auxiliary floor that can be repaired in an expensive way if it is damaged during a seismic event. When the earthquake-resistant pedestal heads 230 are used to support the conventional floor panels 260, the loose coupling is achieved by not tightening the lock nuts 236 against the columns 220. On the other hand, when heads are used of conventional pedestal in conjunction with the bases 210 and the columns 220, the loose coupling is achieved simply by inserting the pedestal heads into the columns 220 (for example, conventional pedestal heads are left in free floating on the columns 220). It will be understood that the foregoing is only illustrative of the principles of the invention, and that various modifications may be made by those skilled in the art, without departing from the spirit and scope of the invention. For example, the invention can be used to provide seismic stability for any type of elevated platform. In addition, the various dimensions and materials mentioned herein are preferred, but other dimensions and materials may be used, if desired. Also, other methods of interconnecting the mounting plates of the equipment to the pedestals, the pedestals to the subfloors, the heads of pedestals to the columns, and the columns to the base plates can be employed.

It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is that which is clear from the present description of the invention.

Having described the invention as above, property is claimed as contained in the following:

Claims (29)

1. A platform for equipment, characterized in that it comprises: a plurality of pedestals secured to a surface with a given rigidity, wherein each of the pedestals comprises a base plate coupled to the surface, a column to the base plate, and a pedestal head coupled to the column; and a mounting plate of the equipment, the mounting plate of the equipment is interconnected with a plurality of pedestals by mounting to a portion of a plurality of pedestal heads, the pedestals are constructed to operatively transfer the rigidity of the surface to the plate of equipment assembly.

2. The platform for equipment according to claim 1, characterized in that the pedestals have a substantially plastic failure mode.

3. The equipment platform according to claim 1, characterized in that the mounting plate of the equipment is of sufficient stiffness, so that the rigidity of the platform for the equipment comprises the sum of the stiffness of each pedestal interconnected by the mounting plate of the team.

4. The platform for equipment according to claim 1, characterized in that each pedestal has at least a quarter of the stiffness sufficient to withstand a seismic event of zone 4 without undergoing inelastic deformation when the equipment is mounted on the platform of the equipment.

5. The platform for equipment according to claim 4, characterized in that the mounting plate of the equipment is coupled to at least four pedestals, so that the rigidity of the platform for the equipment is sufficient to withstand at least one seismic event of zone 4 without suffering non-elastic deformation when the equipment is mounted on the platform for equipment.

6. The platform for equipment according to claim 1, characterized in that the equipment is coupled to the mounting plate of the equipment.

7. The platform for equipment according to claim 1, characterized in that the platform for the equipment is coupled to a conventional raised floor system.

8. The platform for equipment according to claim 1, characterized in that the plurality of spars interconnects with the pedestal heads.

9. The platform for equipment according to claim 1, characterized in that each pedestal head is configured to accept the conventional floor panels and the mounting plate of the equipment.

10. The equipment platform according to claim 1, further characterized in that it comprises a plurality of equipment mounting plates for interconnecting a plurality of the pedestals.

11. A method for providing a raised, stabilized platform characterized the method because it comprises the steps of: securing a plurality of pedestals to a subsoil of a given rigidity; securing a mounting plate of the equipment to a plurality of the pedestals; and the construction of the pedestals to operatively transfer the rigidity of the subfloor to the mounting plate of the equipment, when the mounting plate of the equipment is secured to a plurality of the pedestals.

12. The method according to claim 11, further characterized in that it comprises the step of: providing a plastic failure mode for the pedestals.

13. The method according to claim 11, further characterized in that it comprises the step of: the provision of the mounting plate of the equipment with sufficient rigidity, so that the rigidity of the raised platform comprises the sum of the rigidities of each pedestal interconnected by the mounting plate of the equipment.

14. The method according to claim 11, further characterized by comprising the step of: the provision of each pedestal with at least a quarter of the stiffness, sufficient to withstand a seismic event of zone 4, without suffering inelastic deformation when the equipment is mounted on the elevated platform.

15. The method according to claim 14, further characterized in that it comprises the step of: interconnecting at least four pedestals to the mounting plate of the equipment, so that the rigidity of the elevated platform is sufficient to withstand at least one seismic event of zone 4 without suffering inelastic deformation when the equipment is mounted on the elevated platform.

16. The method according to claim 11, further characterized in that it comprises the step of: coupling the equipment to the mounting plate of the equipment.

17. The method according to claim 11, further characterized in that it comprises the step of: coupling the raised platform to a conventional raised floor system.

18. The method according to claim 11, further characterized in that it comprises the step of: interconnecting the pedestals with a plurality of spars.

19. The method according to claim 11, further characterized in that it comprises the step of: the construction of the pedestals to accept the conventional floor panels and the mounting plate of the equipment.

20. The method according to claim 11, further characterized in that it comprises the step of: securing a plurality of the mounting plates of the equipment to a plurality of the pedestals.

21. An apparatus for selectively providing seismic stability within a raised floor, characterized in that the apparatus comprises: a plurality of earthquake-resistant pedestals, secured to a sub-floor, wherein each of the earthquake-resistant pedestals comprises a base plate that is resistant to earthquakes. the earthquakes, coupled to the subsoil, an earthquake-resistant column coupled to the base plate resistant to earthquakes, and a pedestal head resistant to earthquakes, coupled to the column resistant to earthquakes; a mounting plate of the earthquake-resistant equipment, the mounting plate of the earthquake-resistant equipment interconnects a plurality of earthquake-resistant pedestals, to form a platform for equipment, earthquake-resistant, the mounting plate of the resistant equipment the earthquakes are mounted to a portion of a plurality of the pedestal heads resistant to earthquakes; and a plurality of conventional floor panels interconnecting earthquake-resistant columns and earthquake-resistant base plates at sites not interconnected by the earthquake-resistant mounting plate of the equipment.

22. The apparatus according to claim 21, characterized in that the pedestals resistant to earthquakes have a substantially plastic failure mode.

23. The apparatus according to claim 21, characterized in that the mounting plate of the equipment, resistant to earthquakes, is of sufficient rigidity, so that the rigidity of the platform of the equipment, resistant to earthquakes, comprises the sum of the rigidities of each pedestal resistant to earthquakes, interconnected by the mounting plate of the equipment, resistant to earthquakes.

24. The apparatus according to claim 21, characterized in that each pedestal resistant to earthquakes has at least a quarter of the stiffness sufficient to withstand a seismic event of zone 4, without suffering inelastic deformation when the equipment is mounted on the platform of the equipment , resistant to earthquakes.

25. The apparatus according to claim 24, characterized in that the mounting plate of the equipment, resistant to earthquakes, is coupled to at least four pedestals resistant to earthquakes, to form a rigid body with sufficient rigidity to withstand at least one event seismic zone 4, without the rigid body undergoes inelastic deformation when the equipment is mounted on the platform of the equipment, resistant to earthquakes.

26. The apparatus according to claim 21, characterized in that the equipment is coupled to the mounting plate of the equipment, resistant to earthquakes.

27. The apparatus according to claim 21, characterized in that a plurality of spars interconnect the pedestal heads, resistant to earthquakes.

28. The apparatus according to claim 21, characterized in that each pedestal head, resistant to earthquakes, is configured to accept the conventional floor panels and the mounting plate of the equipment, resistant to earthquakes.

29. The apparatus according to claim 21, further characterized by comprising a plurality of equipment mounting plates, resistant to earthquakes, to form a plurality of equipment platforms, resistant to earthquakes, within the raised floor.