KR101869379B1 - Structure for supporting access floor panel - Google Patents

Abstract

One embodiment of the present invention is a floor panel having a double bottom panel mounted thereon; A guide bar disposed on one side of the annulus to correspond to the longitudinal direction of the annulus; At least one mass block detachably coupled to the guide bar; And a bracket coupled to the main beam to support the mass block.

Description

{Structure for supporting access floor panel}

The present invention relates to a dual floor system, and more particularly to a dual floor panel supporting structure.

Generally, in a computer room where various equipment (computer, computer equipment, etc.) used in the high-tech information age is installed, or a clean room where semiconductor production equipment is installed, a floor panel is continuously (Raised Access Floor System) is mainly installed.

The floor in the clean room effectively absorbs and removes fine dust or dust that enters into the clean room from the outside and distributes the concentrated load applied to the floor of the clean room from the advanced special equipment evenly to the surroundings, And a dual floor system is installed to enable the excretion of various cables and exhaust ducts related to advanced special equipment.

Such a dual floor system is divided into an upper structure and a supporting structure. The upper structure includes floor panels of various cross sections to transmit a dynamic load such as a walking load and an impact load to the supporting structure. Can be delivered to foundation floor.

However, in some cases, the vibration generated by the dynamic load can seriously affect the equipment.

Therefore, recently, the double floor system market of precision industrial structure has grown, and the vibration reduction performance of the double floor structure itself is also important.

Korean Patent Registration No. 10-1612948

The present invention provides a structure for supporting a double bottom panel capable of appropriately attenuating vibrations due to a dynamic load generated at the top of a double bottom panel.

The objects of the present invention are not limited to those described above, and other objects and advantages of the present invention which are not mentioned can be understood by the following description.

A dual floor panel supporting structure according to an embodiment of the present invention includes: A guide bar disposed on one side of the annulus to correspond to the longitudinal direction of the annulus; At least one mass block detachably coupled to the guide bar; And a bracket coupled to the main beam to support the mass block.

In an embodiment of the present invention, the guide bar may be formed of a joining bolt having threads formed on an outer circumferential surface thereof.

In an embodiment of the present invention, the mass block may include a body portion formed with a screw hole for inserting the guide bar, and a fastening portion provided on both sides of the upper end of the body portion and coupled with the bracket via a fastening member.

According to an embodiment of the present invention, the body portion has a front surface and a rear surface, and a fastening groove or a fastening protrusion may be formed on the front surface, and a fastening protrusion or a fastening groove may be formed on the rear surface of the corresponding portion.

In an embodiment of the present invention, the bracket may include a main engaging portion coupled to the main beam, and a block engaging portion extending from the main engaging portion and engaged with the mass block.

In an embodiment of the present invention, the bulletin may include at least one of angled steel having a polygonal section, and H-shaped steel having an " H "

According to an embodiment of the present invention, the post may further include a post coupled to the bottom of the announcement to support the announcement.

According to an embodiment of the present invention, a mass block can be added to and detached from a structure for supporting a double bottom panel, so that low-frequency vibration caused by a walk of a worker, movement of a light- It can be prevented from being transmitted to the installed equipment, or caused by malfunction due to vibration or other process problems.

In addition, according to the embodiment of the present invention, by arbitrarily adjusting the natural frequency by adding mass to a beam element used as a double floor structure without installing a vibration pad or installing a vibration damper, The frequency band of interest can be avoided.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a perspective view illustrating a dual floor panel supporting structure according to an exemplary embodiment of the present invention.
2 is a perspective view showing the "A" portion of FIG. 1 in detail.
3 is an exploded perspective view showing the "A" portion of FIG. 1 in detail.
4 is a perspective view illustrating a dual floor panel supporting structure according to another embodiment of the present invention.
5 is a perspective view showing the "B" portion of FIG. 4 in detail.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "indirectly connected" . Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 and FIG. 2 respectively show a dual floor panel supporting structure according to an embodiment of the present invention.

Referring to FIGS. 1 and 2, the structure for supporting a double floor panel according to an embodiment includes a post 100 or a concrete grid beam sufficiently securing a lower space, and a bulb 200 is disposed on the lower space.

A double bottom panel 300 is mounted on the upper side of the main beam 200 and a plurality of posts 100 are provided on the lower side of the main beam 200 to support the main beam. The posts 100 are fabricated with a length corresponding to the design height in the double bottom structure. A stringer (not shown) is fastened between the post and the adjacent posts to enhance the durability against the flow or deformation applied to the overall structure.

A plurality of the annuli 200 are arranged at regular intervals, for example, at intervals corresponding to the widths of the double floor panels. The pitcher 200 may be formed as an angular section having a polygonal section or an H section having an " H " sectional section.

A natural frequency adjusting device 400 is provided below the main body 200. That is, in one embodiment of the present invention, low-frequency vibration caused by the operator's walking, light-weight bogie moving, pump operation on the upper floor may not be transmitted to the equipment installed on the upper floor, In order to prevent the problem from occurring, it is possible to arbitrarily adjust the natural frequency by adding mass to the beam element used as a double bottom structure without installing a vibration pad or installing a vibration damping device, Band can be avoided.

To this end, the natural frequency adjusting device 400 according to an embodiment provides the mass block removing and mounting brackets for attaching the mass block and the mass block to the beam element to measure the vibration characteristics in the field, Which can be adjusted quickly and inexpensively and precisely with low frequency vibration control.

FIG. 3 illustrates a natural frequency adjusting apparatus according to an embodiment of the present invention.

3, the natural frequency adjusting device 400 includes a guide bar 410 disposed at one side of a main beam, at least one mass block 420 detachably coupled to the guide bar 410, And a bracket 430 that supports the mass block 420 and is coupled to the annulus.

In one embodiment, the bulletin consists of angular sections having a cross-section of polygon.

The guide bar 410 supports the at least one mass block 420 and is disposed parallel to the pitcher 200 in a direction corresponding to the longitudinal direction of the pitcher 200. A joining bolt having a threaded outer peripheral surface may be used as the guide bar 410. A washer 411 and a nut 412 are fastened to both ends of the guide bar 410 to connect the mass bar 420 coupled to the guide bar 410 Can be fixed.

The mass block 420 imparts a sense of mass to the bulletin, and can be formed of a material such as a metal material that can secure a weight. The surface of the mass block 420 may be coated with an antistatic material such as epoxy, urethane or the like.

The mass block 420 includes a body portion 421 to which the guide bar 410 is inserted and a body portion 421 that is provided on both sides of the upper end of the body portion 421 and is coupled to the bracket 430 via the fastening bolt 450 and the nut 451. [ (Not shown). The body portion 421 may have a substantially inverted triangular shape when viewed from the front so as to have a stable center of gravity, but the shape of the body portion 421 need not be limited.

Each mass block 420 has a coupling means for engagement with a neighboring mass block 420. For example, the body portion 421 of each mass block 420 has a front surface and a rear surface, and a fastening groove 421b and a fastening protrusion 421c are formed on the front surface of the body portion 421, The fastening protrusion and the fastening groove are formed to be capable of correspondingly engaging with another neighboring mass block. A guide hole 421a is formed in the horizontal direction so that the guide bar 410 is inserted into the substantially central portion of the body portion 421.

The fastening portion 422 may be formed to protrude outward on both sides of the upper portion of the body portion 421. A second guide hole 422a is formed in each fastening portion 422 in a vertical direction. A fastening bolt (450) for fastening the bracket (430) is inserted into the second guide hole, and a fastening nut (451) is fastened to one end of the fastening bolt.

The bracket 430 supports the mass block 420 and is fastened to the main spindle 200. The bracket 430 extends from the main spindle engaging portion 431 and the main spindle engaging portion 431, And a block engaging portion 432 fastened to the mass block 420 via the through hole.

The annular engaging portion 431 is formed to correspond to the shape of the prismatic steel. For example, when a square having a rectangular cross section is used as a bulletin for supporting the double floor panel, the annular joining portion 431 is provided with an upper plate 431a disposed on the upper surface of the square steel, And a side plate 431b which is bent to surround both sides of the square steel. The lower end of each side plate is integrally connected to one end of the block engaging portion 432 to support the load of the mass block 420.

Therefore, in the dual floor panel supporting structure according to one embodiment, in order to install the double floor panel on the upper surface of the structure with a limited thickness for the double floor construction such as the clean room, It is possible to adjust the natural frequency given to the resonance frequency. Also, the structure can be designed to withstand the high load without increasing the weight of the double bottom panel.

That is, the structure for supporting a double bottom panel according to an embodiment can have a high-load reaction force itself without any additional reinforcing means or strength maintaining means. It is also possible to construct a low-load, heavy-load, double-bottomed system without increasing the thickness, width and weight of the double-bottom panel under limited conditions.

4 and 5 illustrate a dual floor panel supporting structure according to another embodiment of the present invention, respectively.

4 and 5, the dual floor panel supporting structure according to another embodiment includes a guide bar 410 disposed on one side of the annulus so as to correspond to the longitudinal direction of the annulus, a guide bar 410 detachably coupled to the guide bar 410, At least one mass block 420, and a bracket 440 that supports the mass block 420 and is coupled to the annulus.

In another embodiment, the bulletin 250 is comprised of an H-shaped section having an "H" shaped cross section.

The bracket 440 includes a main bearing portion 441 and a block engaging portion 442. The main bearing engaging portion 441 is seated on the H-shaped portion. The block engaging portion 442 protrudes outward from the H- And is engaged with the fastening portion of the mass block 420 via the bolt 450 and the nut 451. At this time, the block engaging portion 442 may be formed to be stepped downward with respect to the annular engaging portion 441.

For example, when the H-shaped steel is placed on the post as shown in Fig. 4, the upper extension 252 and the lower extension 253 are disposed in parallel to each other at the upper and lower ends of the vertical stand 251, respectively. The block engaging portion 441 of the bracket 440 is disposed on the upper surface of the lower extension 253 and the block engaging portion 442 formed at the stepping engaging portion 441 is formed in the block connecting portion 442 through the fastening bolt 450, (420).

Therefore, even when the main beam is not only the H-shaped steel but also the H-shaped steel, the natural frequency adjusting device can be easily fastened.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be.

That is, it should be understood that the embodiments described above are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

Accordingly, the scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

100; Post
200; weekly
300; Double floor panel
400; A natural frequency adjusting device 410; Guide bar
420; Mass block 430; Bracket
431; Annotation joining unit 432; The block-

Claims (7)

A note bearing a double floor panel;
A guide bar disposed on one side of the annulus to correspond to the longitudinal direction of the annulus;
At least one mass block detachably coupled to the guide bar;
And a bracket coupled to the main beam to support the mass block,
Wherein the mass block includes a body portion formed with a screw hole for inserting the guide bar, and a fastening portion provided on both upper ends of the body portion and coupled to the bracket via a fastening member.
The method according to claim 1,
Wherein the guide bar is a joining bolt having threads formed on the outer circumferential surface thereof.
delete The method according to claim 1,
Wherein the body portion has a front surface and a rear surface, and a fastening groove or a fastening protrusion is formed on the front surface, and a fastening protrusion or a fastening groove is formed on the rear surface of the body portion.
The method according to claim 1,
Wherein the bracket includes a main bearing coupled to the main bearing, and a block coupling extended from the main bearing to engage with the mass block.
The method according to claim 1,
Wherein the bulletin comprises at least one of an angled steel having a polygonal cross section and an H-shaped steel having an " H " shaped cross section.
The method according to claim 1,
And a post coupled to a lower side of the bulletin board to support the bulletin board.

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