KR20240008682A - Seismic-reinforced access floor - Google Patents

Abstract

The present invention relates to a raised floor with reinforced seismic performance, comprising a stringer supporting a panel mounted on the upper part, a strut disposed below the stringer and supporting the stringer, connected to the stringer, and between the stringer and the wall. It may include a wall fixing member that adjusts the gap and a fixing piece that fixes the wall fixing member to the wall. According to the present invention, it is effective in preventing collision between the wall and the panels of the raised floor during an earthquake. .

Description

Raised floor with reinforced seismic performance {SEISMIC-REINFORCED ACCESS FLOOR}

The present invention relates to a raised floor with reinforced earthquake resistance, and more specifically to a raised floor that can prevent collision between the wall and the panels of the raised floor during an earthquake.

As the number of medium-scale earthquakes increases in Korea, seismic design standards are being strengthened and securing seismic safety is becoming more important. In particular, when an earthquake occurs in Gyeongju, Pohang, etc., damage to non-structural members of buildings accounts for more than 50% of the total, making it necessary to secure seismic performance for non-structural elements compared to structural elements.

Here, non-structural elements are elements attached to structural elements such as columns, beams, shear walls, and floor slabs that support the building. They include architectural non-structural elements such as interior and exterior finishing materials, ceiling frames, and raised floors, and electrical and mechanical elements such as air conditioners and switchboards. It can be divided into structural elements.

Power buildings such as converters and substations have a computer room and control room containing controllers and communication devices that must control internal transmission and distribution facilities. This computer room has a double floor (access floor) installed on the floor to support the devices at the top. The lower part is used as a passage for electric wires, pipes, etc.

These raised floors must maintain structural integrity without falling off or being damaged in the event of an earthquake, and seismic force must not be amplified and transmitted to the equipment above. However, it is understood that many of the raised floors currently used in Korea are vulnerable to earthquake resistance.

Raised floors often come in sizes of 600×600, and are constructed by assembling these ready-made products on site. When constructing a raised floor on the floor, the raised floor is cut and used at the last edge, and in the case of stringers that support the panel. Because it is cut and used on site, there is some gap between it and the wall.

In order to analyze the impact of this gap, we identified the seismic vulnerability of the raised floor through a shake table experiment and found that due to the gap between the wall and the raised floor in the area in contact with the concrete wall, collision due to displacement occurs when an earthquake occurs, and seismic acceleration is reduced. It was amplified and showed vulnerabilities such as the floor fixings falling off.

Korean Patent Registration Number: 10-2334074

The present invention was made to solve the problems in the related technical field as described above, and the purpose of the present invention is to provide a raised floor that can prevent collision between the wall and the panels of the raised floor during an earthquake.

The present invention for achieving the above objects relates to a raised floor with reinforced earthquake resistance, including a stringer supporting a panel mounted on the upper part; A strut disposed below the stringer and supporting the stringer; A wall fixing member connected to the stringer and adjusting the gap between the stringer and the wall; and a fixing piece for fixing the wall fixing member to the wall.

Additionally, in an embodiment of the present invention, the wall fixing member may include a fixing frame having an opening through which the stringer is inserted.

Additionally, in an embodiment of the present invention, the wall fixing member may further include a fixing bracket connected to the fixing frame and fixing the fixing frame to the wall by the fixing piece.

Additionally, in an embodiment of the present invention, the wall fixing member may further include a support beam connected to the fixing bracket and a lower part of the fixing frame and supporting the lower part of the fixing frame.

In addition, an embodiment of the present invention further includes a plurality of adjustment holes disposed along the body; and a through hole formed on one side of the stringer body, and an adjustment piece detachable from one of the plurality of adjustment holes through the through hole, wherein the adjustment piece is connected to the plurality of adjustment holes. It is selectively attached and detached and the gap between the stringer and the wall can be adjusted.

In addition, in an embodiment of the present invention, a reinforcing member is connected between the wall fixing member and the strut, adjusts tension between the wall fixing member and the strut, and distributes the horizontal force of the panel and the stringer. You can.

Additionally, in an embodiment of the present invention, the reinforcing member includes: a first connection portion connected to the support beam; a second connection part connected to the support; and a turnbuckle bar respectively connected to the first connection part and the second connection part and adjusting the distance between the first connection part and the second connection part.

Additionally, in an embodiment of the present invention, the reinforcing member includes: a first screw connected to the first connection portion and disposed to engage with a screw thread on one side of the turnbuckle bar; and a second screw connected to the second connection part and disposed to engage with the other side of the turnbuckle bar in a screw thread manner.

In addition, an embodiment of the present invention may further include a gap closing member disposed between the panel and the wall at the top of the wall fixing member and preventing the panel from colliding with the wall.

Additionally, in an embodiment of the present invention, the gap closing member may be formed of an elastic material.

According to the present invention, when an earthquake occurs, the structural integrity of the raised floor installed in the computer room, control room, communication room, etc. is secured, and furthermore, the operability of the facility is ensured by reducing the seismic force and vibration transmitted to the facility, thereby preventing the raised floor from falling out. It can reduce casualties and facility malfunctions by reducing seismic force.

In addition, as earthquake-resistant design of non-structural elements becomes a legal obligation, it can be applied to many buildings such as data centers containing communication, control, and computer facilities as well as power structures, and it may also be possible to generate profits through technology transfer.

Figure 1 is a side view showing the structure of the raised floor of the present invention.
Figure 2 is a side view showing the state before combination of the wall fixing member of the present invention and the stringer.
Figure 3 is a side view showing the state after combining the wall fixing member of the present invention and the stringer.
Figure 4 is a front view showing the wall fixing member of the present invention.
Figure 5a is a graph showing seismic acceleration when an earthquake occurs in a conventional raised floor.
Figure 5b is a graph showing the seismic acceleration when an earthquake occurs in the present inventor's raised floor.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are illustrative, and the present invention is not limited to the matters shown. Like reference numerals refer to like elements throughout the specification. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. When 'includes', 'has', 'consists of', etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, the plural is included unless specifically stated otherwise.

When interpreting a component, it is interpreted to include the margin of error even if there is no separate explicit description.

In the case of a description of a positional relationship, for example, if the positional relationship of two parts is described as 'on top', 'on the top', 'on the bottom', 'next to', etc., 'immediately' Alternatively, there may be one or more other parts placed between the two parts, unless 'directly' is used.

Although first, second, etc. are used to describe various elements, these elements are not limited by these terms. These terms are merely used to distinguish one component from another. Accordingly, the first component mentioned below may also be the second component within the technical spirit of the present invention.

Like reference numerals refer to like elements throughout the specification.

The size and thickness of each component shown in the drawings are shown for convenience of explanation, and the present invention is not necessarily limited to the size and thickness of the components shown.

Each feature of the various embodiments of the present invention can be partially or fully combined or combined with each other, and as can be fully understood by those skilled in the art, various technical interconnections and operations are possible, and each embodiment may be implemented independently of each other. It may be possible to conduct them together due to a related relationship.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the attached drawings. A plurality of embodiments described below may be applied overlappingly as long as they do not conflict with each other.

Hereinafter, preferred embodiments of a raised floor with reinforced seismic performance according to the present invention will be described in detail with reference to the attached drawings.

Referring to Figures 1 to 4, the raised floor (10) with reinforced seismic performance according to the present invention includes a wall fixing member (20), a stringer (60), a strut (91), an adjustment hole (40), and an adjustment piece (50). ), a reinforcing member 70, a panel 93, and a gap closing member 80.

A plurality of the supports 91 may be arranged at predetermined intervals inside the space where the raised floor 10 is installed. A plate-shaped strut base (91b) may be disposed at the lower part of the strut 91, and allows the strut 91 to be stably seated on the floor. A plate-shaped strut head 91a may be disposed on the upper portion of the strut 91, and the strut head 91a may support the lower portion of the stringer 60.

The panel 93 may be formed in a square plate shape, and the lower part of the panel 93 may be supported by a stringer 60. A plurality of panels 93 are arranged in contact with each other and can form the bottom of the raised floor 10, and various control devices can be placed on the upper part of the panel 93.

The stringers 60 may have a beam shape, may be arranged in plural numbers, and may support the lower portion of the panel 93. The stringer 60 may be supported by the support 91, and thus a space may be formed in the lower part of the stringer 60 where electric wires, pipes, etc. can be placed.

The stringer 60 may include a stringer body 62 and a through hole 61. The stringer body 62 may have a beam shape with a square cross-section. The through hole 61 is formed to penetrate one side of the stringer body 62 and may be arranged to extend in the X-axis direction.

The wall fixing member 20 is connected to the stringer 60, and the gap between the stringer 60 and the wall surface (W) can be adjusted. The wall fixing member 20 can fill the gap between the stringer 60 and the wall surface (W), thereby producing the effect of fixing the stringer 60 to the wall surface (W). Additionally, the wall fixing member 20 can prevent the stringer 60 from colliding with the wall W when an earthquake occurs.

Specifically, the wall fixing member 20 can prevent the shaking and vibration from being transmitted to the stringer 60 when shaking or vibration occurs due to seismic force or the like.

To this end, the wall fixing member 20 may include a fixing bracket 21, a fixing frame 22, a support beam 23, a connection hole 24, and an opening 26.

The fixed frame 22 may have a square beam shape, and an opening 26 may be formed at the center of the fixed frame 22. One side of the stringer body 62 may be inserted and placed in the opening 26.

The fixing bracket 21 is connected to the fixing frame 22, and the fixing frame 22 can be fixed to the wall W using the fixing piece 30. Here, the fixing piece 30 may be a bolt, nail, etc.

The support beam 23 may have a triangular plate shape, connect the fixing bracket 21 and the lower part of the fixing frame 22, and support the lower part of the fixing frame 22. A connection hole 24 to which the reinforcing member 70 is coupled may be formed in the support beam 23.

Meanwhile, a plurality of adjustment holes 40 may be arranged in the X-axis direction on the fixing frame 22.

The adjustment piece 50 is attached and detached to one of the plurality of adjustment holes 40 through the through hole 61, and the gap between the stringer 60 and the wall surface (W) can be adjusted.

Specifically, the adjustment piece (500) is coupled to one of the plurality of adjustment holes (40) according to the gap between the stringer (60) and the wall (W), and the fixing frame (22) is connected to the gap between the stringer (60) and the wall (W). will fill in.

When an earthquake occurs, the control piece 50 moves in the X-axis direction along the through hole 61. Accordingly, the shaking and vibration of the wall fixing member 20 can be prevented from being absorbed and alleviated according to the horizontal movement of the adjustment piece 50 and transmitted to the stringer 60.

Through this, it is possible to prevent shaking and vibration due to seismic forces from being transmitted to the stringer 60 as well as the panel 93 supported on the upper part of the stringer 60.

Meanwhile, the reinforcing member 70 is connected between the wall fixing member 20 and the prop 91, and adjusts the tension between the wall fixing member 20 and the prop 91 to maintain the wall fixing member 20 when an earthquake occurs. It is possible to distribute the horizontal force transmitted to the panel 93 and the stringer 60.

For this purpose, the reinforcing member 70 may include a first connection part 71, a second connection part 72, a first screw 74, a second screw 75, and a turnbuckle bar 73.

The first connection part 71 may be U-shaped and may be connected to the connection hole 24 of the support beam 23 by a first link pin 71a. And the second connection portion 72 may be U-shaped and may be connected to the support 91 by a second link pin 72a.

The turnbuckle bar 73 is respectively connected to the first connection part 71 and the second connection part 72, and the distance between the first connection part 71 and the second connection part 72 can be adjusted.

Here, the first screw 74 is connected to the first connection portion 71 and may be disposed in engagement with one side of the turnbuckle bar 73 in a screw thread manner. And the second screw 75 is connected to the second connection portion 72 and may be disposed to engage with the other side of the turnbuckle bar 73 in a screw thread manner.

When the worker rotates the turnbuckle bar 73 in one direction, the turnbuckle bar 73 rotates in engagement with the first and second screws, thereby narrowing the distance between the first and second connection parts 71 and 72. Conversely, when the worker rotates the turnbuckle bar 73 in the other direction, the turnbuckle bar 73 rotates in engagement with the first and second screws, thereby widening the distance between the first and second connecting portions 71 and 72.

The worker can ensure that the tension between the wall fixing member 20 and the support bar 91 is firmly maintained through a simple operation of rotating the turnbuckle bar 73.

When an earthquake occurs, horizontal force is generated on the wall (W) in the horizontal As it is maintained, this horizontal force can be absorbed.

As a result, the effect of dispersing the horizontal force of the wall surface W can be obtained, so shaking and vibration in the horizontal direction transmitted to the stringer 60 and the panel 93 can be alleviated.

Meanwhile, the gap closing member 80 is disposed between the panel 93 and the wall surface (W) at the top of the wall fixing member 20, and prevents the panel 93 from colliding directly with the wall surface (W). You can. Specifically, the gap closing member 80 can suppress horizontal displacement and acceleration amplification of the wall surface (W) when shaking or vibration occurs due to seismic force, etc.

In an embodiment of the present invention, the gap closing member 80 may be made of an elastic material such as silicone, rubber, or urethane.

Due to the specifications of the panels 93 during construction of the raised floor 10, when a plurality of panels 93 are placed together, a gap may occur between the panels 93 adjacent to the wall surface W and the wall surface W. By placing the gap finishing member 80 in the gap between the gaps, the gap between the panel 93 and the wall W is filled.

During an earthquake, since the gap closing member 80 is made of an elastic material, even if the wall surface (W) shakes in the horizontal X-axis direction, the gap closing member 80 absorbs shaking and vibration, so the wall surface (W ) can be prevented from colliding with the panel 93.

Meanwhile, referring to FIGS. 5A and 5B, a graph of the seismic acceleration (G) tested between the conventional raised floor 10 and the raised floor 10 according to the present invention is disclosed.

First, referring to FIG. 5A, the conventional raised floor 10 is not equipped with a device to prevent collision between the wall W and the panel 93 when shaking or vibration occurs due to seismic force, etc., so the wall W is exposed to the panel 93. It can be seen that when a collision occurs, the seismic acceleration (G) is generally formed in a wide range.

On the graph, the seismic acceleration (G) range ranges from a maximum of 4.659029 to a minimum of -6.4176416. It can be seen that as the seismic acceleration (G) becomes large, the shock transmitted to the panel 93 may be large. If this seismic acceleration (G) is large, the raised floor 10 may collapse and various electronic devices and workers may fall, causing a serious accident.

In contrast, referring to FIG. 5b, the raised floor 10 of the present invention is equipped with a device that can suppress shaking and vibration caused by seismic forces, thereby preventing the wall W from colliding with the panel 93 and preventing earthquakes. It can be seen that the acceleration (G) is generally formed in a narrow range.

On the graph, the seismic acceleration (G) ranges from a maximum of 1.8757194 to a minimum of -1.8774341. It can be seen that as the seismic acceleration (G) becomes smaller, the shock transmitted to the panel 93 is significantly reduced.

These results indicate that the structure of the raised floor 10 can be maintained stably when an earthquake occurs, and it can be confirmed that the collapse of the raised floor 10 can be prevented through this.

The above merely shows a specific example of a raised floor with reinforced seismic performance.

Therefore, we wish to make it clear that those skilled in the art can easily understand that the present invention can be substituted and modified in various forms without departing from the spirit of the present invention as set forth in the claims below. do.

10: Double floor 20: Wall fixing member
21: fixing bracket 22: fixing frame
23: Support beam 24: Connection hole
26: opening 30: fixing piece
40: Control hole 50: Control piece
60: Stringer 61: Through hole
62: Stringer body 70: Reinforcement member
71: first connection part 72; second connection part
73: Turnbuckle bar 74: First screw
75: Second screw 80: Gap closing member
91: Holder 93: Panel

Claims (10)

A stringer supporting the panel seated at the top;
A strut disposed below the stringer and supporting the stringer;
A wall fixing member connected to the stringer and adjusting the gap between the stringer and the wall; and
A fixing piece for fixing the wall fixing member to the wall;
A raised floor with reinforced seismic performance, including.
According to paragraph 1,
The wall fixing member is,
A fixed frame having an opening into which the stringer is inserted;
A raised floor with reinforced seismic performance, including.
According to paragraph 2,
The wall fixing member is,
a fixing bracket connected to the fixing frame and fixing the fixing frame to the wall by the fixing piece;
A raised floor with reinforced seismic performance, further comprising:
According to paragraph 3,
The wall fixing member is,
a support beam connected to the fixing bracket and a lower part of the fixing frame and supporting the lower part of the fixing frame;
A raised floor with reinforced seismic performance, further comprising:
According to clause 4,
It further includes a plurality of adjustment holes disposed along the X-axis direction of the fixed frame,
The stringer is,
A stringer body whose one side is inserted into the opening and supports a panel seated on the upper portion; and
It includes a through hole formed on one side of the stringer body,
It further includes an adjustment piece detachable from one of the plurality of adjustment holes through the through hole,
A raised floor with reinforced seismic performance, wherein the adjustment piece is selectively attached and detached to the plurality of adjustment holes and adjusts the gap between the stringer and the wall.
According to clause 4,
a reinforcing member connected between the wall fixing member and the strut, adjusting tension between the wall fixing member and the strut, and distributing the horizontal force of the panel and the stringer;
A raised floor with reinforced seismic performance, further comprising:
According to clause 6,
The reinforcing member is,
A first connection part connected to the support beam;
a second connection part connected to the support; and
a turnbuckle bar respectively connected to the first connection part and the second connection part and adjusting a distance between the first connection part and the second connection part;
A raised floor with reinforced seismic performance, including.
In clause 7,
The reinforcing member is,
a first screw connected to the first connection part and disposed to engage with a screw thread on one side of the turnbuckle bar; and
a second screw connected to the second connection portion and disposed to engage with the other side of the turnbuckle bar in a threaded manner;
A raised floor with reinforced seismic performance, further comprising:
According to paragraph 1,
a gap closing member disposed between the panel and the wall at the top of the wall fixing member and preventing the panel from colliding with the wall;
A raised floor with reinforced seismic performance, further comprising:
According to clause 9,
The gap closing member is a raised floor with reinforced seismic performance and is formed of an elastic material.

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