KR101198268B1 - Floor supporting structure for clean room and establishing method of access floor using the same - Google Patents

Abstract

The present invention can fix the aluminum pad to the H-beam by one operation through the gas pin hole located on the outermost top of the four corners of the aluminum pad by triggering a gas gun, thereby greatly simplifying the process operation. In addition, the present invention relates to a floor fixing structure of a clean room capable of providing excellent construction and a more robust support structure, and a method of installing an access floor of a clean room using the same. The floor fixing structure of the clean room is fixed to a grid-shaped concrete PC (cast) placed on the floor of the clean room, and in a matrix form a row and column at a predetermined interval on the grid-shaped concrete PC (precast) A plurality of posts are installed and the lower ends thereof are combined one by one to allow height adjustment on the plurality of posts arranged in a row, and the one row is spaced apart. H-beams arranged in a plurality of rows and four gas pin holes facing each other at four corners are formed, respectively, and are spaced apart at a predetermined distance from the upper ends of the plurality of rows of H-beams on the respective posts through a gas gun. And a plurality of rectangular aluminum pads having four first bolting holes formed radially inwardly of the four gas pin holes, wherein the two or four access floors are formed. The second bolt fastening hole and the first bolt fastening hole corresponding to each of the aluminum pads respectively formed on the edges in close contact with each other are characterized in that is fixed by bolted to each other.

Description

Floor fixing structure of clean room and installation method of clean floor access floor using the same {FLOOR SUPPORTING STRUCTURE FOR CLEAN ROOM AND ESTABLISHING METHOD OF ACCESS FLOOR USING THE SAME}

The present invention relates to a floor fixing structure of a clean room and a method of installing an access floor of a clean room using the same. More specifically, the H-beam aluminum pad for fixing the lower surface of the close contact corners of at least two access floors. When fixing on the beam, the aluminum pad can be fixed to the H-beam by one operation through a gas pin hole located at the outermost side of the four corners of the aluminum pad by triggering a gas gun. In addition to greatly simplifying the process work, the use of H-beams to support a plurality of aluminum pads allows for better construction and a more rigid support structure. It relates to a floor installation method.

 The floor of a clean room for manufacturing or a laboratory requiring a high degree of precision is spaced a predetermined distance from the floor of the building to form a space between the floor of the building and the floor of the clean room. Equipment such as cables, water supply and drainage pipes can be installed in the space between the floor and the building floor.

The floor of such a clean room is usually at least two or more, usually four or more, which are fixedly installed at a predetermined distance apart from a predetermined distance on the floor of the building, and are disposed adjacent to the pad by placing a pad in a post cap on the top of the post. It is installed by arranging the edges of the access floor, which is the floor panel, in close contact with each other.

For this purpose, a post-shaped cap is formed on the top of the post, and an aluminum pad is typically disposed on the post cap, and an edge of an access floor, which is a bottom panel, is disposed on the post pad.

In this case, the aluminum pad is typically fixed by an adhesive on the post cap, or fastened using a plurality of bolt fastening holes.

However, when the post cap and the aluminum pad are fixed by the adhesive as described above, contamination may be caused by the adhesive, and there is a concern that the assembly position of the access floor which is fastened and fixed on the aluminum pad may deviate from the desired position. have.

In addition, when the post cap and the aluminum pad are fixed through the plurality of bolt fastening holes, not only the additional work for pre-forming the plurality of bolt fastening holes in the post cap is necessary, but also the aluminum pad is provided in each spaced post cap. Since the structure is fixedly supported, there will be a defect in terms of the stable support structure of the access floor which is fastened and fixed on the aluminum pad later.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and when fixing an aluminum pad on the H-beam to fix the lower surface of the at least two access floors in close contact with each other, By triggering, the aluminum pad can be fixed to the H-beam by one operation through a gas pin hole located on the outermost upper surface of the four corners of the aluminum pad. It is to provide a floor fixing structure of the clean room and the installation method of the access floor of the clean room using the same because there is no fear that the shock is not transmitted when the gas pin is coupled because no contact is made to the access floor.

It is another object of the present invention to install a floor fixing structure of a clean room and an access floor of the clean room using the H-beam for supporting a plurality of aluminum pads, which can provide excellent construction and provide a more robust support structure. To provide a way.

In order to achieve the above object, the floor fixing structure of the clean room according to the present invention is to the bottom fixing structure of the clean room to support and fix the lower surface of one side of the adjacent edges of at least two neighboring access floors from below. A plurality of posts fixedly installed in a matrix form forming rows and columns at regular intervals on a grid-shaped concrete PC (precast) placed on the floor of the clean room and the grid-shaped concrete PC (precast) ( H and posts, the lower ends of which are combined with each other to form a single row so that height adjustment is possible on the plurality of posts arranged in a row. The single rows are spaced apart and arranged in a plurality of rows. A beam and four gas pinholes opposed to each other at four corners are formed so that a predetermined distance is provided at the upper end of the plurality of rows of H-beams on the respective posts through the gas gun. And a plurality of rectangular aluminum pads having four first bolt fastening holes formed radially inwardly of the four gas pin holes, and being in close contact with each other. A bottom fixing structure of the clean room, characterized in that the bolts are fixed to each other and the second bolt fastening holes respectively formed in the corners and the corresponding first bolt fastening holes of the respective aluminum pads.

Here, each of the posts, the base plate on the rectangular plate anchored in the form of a matrix forming a row and column at regular intervals on the upper surface of the grid-shaped concrete PC (precast), integral with the upper side of the base plate And a base pipe formed upright of the base pipe, and a flat post cap formed on an upper end of the base pipe, wherein each of the H-beams has two recessed opposing openings arranged in a state of being laid down in left and right directions; And a pair of opposing through-holes corresponding to the lower side of the two openings along the post caps of the respective posts and spaced apart from each other by a predetermined distance, wherein the height adjustment structure includes the H-beam ( two opposite stud bolts inserted into opposite pairs of through holes of the beam and anchored to an upper surface of the post cap; Two nut members fastened to the bolt to tighten the stud bolt up and down with respect to the through hole to adjust the height of the H-beam (beam), and the buffer force between the through hole and the two nut member Characterized in that it consists of a washer to provide.

In addition, the aluminum pads are formed to protrude upwards on the upper edges of the four sides thereof, and four protrusions are formed to be arranged in mutually orthogonal directions so that the aluminum pads are in close contact with each other by four access floors assembled and fixed to an upper portion of one aluminum pad. It is preferable to guide the arrangement of the corner portions.

Further, it is preferable that the rubber pad is further formed so that the access floor disposed on each of the aluminum pads and assembled and secured thereon is kept in position without slipping.

In order to achieve the above object, the installation method of the access floor of the clean room according to the present invention comprises the steps of fixing the grid-type concrete PC to the bottom of the clean room; Anchoring the plurality of posts in a matrix form in rows and columns at regular intervals on the grid-shaped concrete PC, and anchoring the lower ends of two opposing stud bolts on the upper surfaces of the respective posts. (anchoring) so that the two stud bolts are spaced apart so that a plurality of uprights, the H-beams are arranged in a row, but the two openings of the opposing H-beams are laid down in left and right directions. At the same time, the two stud bolts are inserted into a pair of opposing through-holes located at the lower side of the two openings of the H-beam, but spaced apart by a predetermined distance. When the heights of the H-beams arranged in rows are positioned at a predetermined position, the two nuts may be completely tightened up and down with respect to the through-holes by using two nut members. Coupling and fixing the H-beams of heat; A gas pin hole formed to face four corners of the aluminum pad in a state in which a flat aluminum pad is abutted directly on the upper side of the H-beam in which the posts are respectively positioned. The gas gun is triggered through the gas pin to pass through the gas pin hole so that the lower end of the gas pin is fixed to the upper side of the H-beam to be fixed at a predetermined distance from the plurality of rows of H-beams. Fixedly assembling the aluminum pads; Four first bolt fastening holes of the aluminum pad located in the radially inner side of the four gas pin holes correspond to the second bolt fastening holes located at the corners of the four access floors. Each corner on each aluminum pad mounted on the multi-row H-beams by positioning the two adjacent access floors by tightening the corresponding first and second bolts together through SUS bolts. Characterized in that it consists of a step of being completely in close contact fixed.

In this case, it is preferable that the four neighboring access floors are fixed to each other through the SUS bolts simultaneously or simultaneously with one of the aluminum pads fixed on the H-beam.

Further, prior to the step of fixing the plurality of aluminum pads with the gas gun, the aluminum pads are not coupled by the gas gun directly above the H-beam, where the post is located below. It is preferable to further include a step of weakly fixing one side lower surface of each of the four access floors in close contact with each other on the aluminum pad in a contact state.

According to the floor fixing structure of the clean room according to the present invention configured as described above and the installation method of the access floor of the clean room using the same, the aluminum pad for fixing the lower surface of the edges in close contact with each other of at least two access floors H- When fixing on the beam, the aluminum pad can be fixed to the H-beam by one operation through a gas pin hole located on the outermost side of the upper four corners of the aluminum pad by triggering a gas gun. In addition to greatly simplifying the process operation, no contact is made to the adjacent adjacent access floors, so there is no risk of transmitting shocks when combining gas pins, and the use of an H-beam to support a plurality of aluminum pads. The construction is excellent and there is an effect that can provide a more robust support structure.

1 is an exploded schematic perspective view of a flow system of a clean room using a floor fixing member of a clean room according to the present invention.
2 is a perspective view of the combination of FIG.
3 is a perspective view of an aluminum pad applied to the flow system of the clean room of FIG.
4 is a flowchart illustrating a method of installing an access floor of a clean room using the floor fixing member of the clean room according to the present invention.
5A to 5E are process diagrams sequentially illustrating a method of installing an access floor of a clean room to which an aluminum pad according to the present invention is applied.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

1 is an exploded schematic perspective view of a flow system of a clean room using a floor fixing member of a clean room according to the present invention, FIG. 2 is a perspective view of FIG. 1, and FIG. 3 is a flow system of the clean room of FIG. 1. As a perspective view of an applied aluminum pad, it will be described together for convenience.

Here, in the floor system using the floor fixing member 1 of the clean room according to the present invention, a plurality of floor fixing members 1 according to the present invention are erected on a lattice-shaped concrete PC (precast) 20 as a foundation floor. The floor of the clean room which requires the high precision and the manufacturing of semiconductor devices, etc. by being installed, and the access floor 10 in the form of a grating panel is fixed and continuously arranged in all directions. To provide.

Here, although the base bottom surface is preferably a grid-shaped concrete PC (precast) 20, an iron beam such as a square beam may be used to reinforce the bearing capacity of the floor fixing member 1.

In addition, under the premise that the access floor 10 is rectangular, the number of access floors 10 that can be supported by one floor fixing member 1 according to the present invention may be at least one up to four, For convenience, the edges of the four access floors 10 that are in close contact with each other are illustrated as being fixed at the same time.

As shown, the bottom fixing structure of the clean room using the bottom fixing member 1 of the clean room according to the present invention is a lattice type so as to support one side lower surface of the four closely contacted corners of the access floor 10 from below. Upright on a concrete PC (20), rows of lattice-shaped concrete PCs (precast) 20 placed on the floor of the clean room and rows on a lattice-shaped concrete PCs (precast) 20 at regular intervals A plurality of posts 30 fixedly installed in a matrix form to form a superheat, and each of the posts 30 are installed to be individually adjustable in height, and a plurality of H- An aluminum pad 50 formed of aluminum, which is coupled to the gas pin 81 through four gas pin holes 51 formed at four corners on the beam 40 and the four H-beams 40, and also four corners. The aluminum pad 50 through the four bolt fastening holes 52 formed in the The bottom surface of each of the edges in close contact with each other is composed of four access floor (10) fixedly fastened.

Each of the posts 30 is a square plate-shaped base plate that is fixed (anchored) in a matrix form forming rows and columns at regular intervals on the upper surface of the grid-shaped concrete PC 20. (31), a base pipe (32) which is integrally erected upstream of the base plate (31), and a flat post cap (33) formed at the upper end of the base pipe (32).

Here, the base plate 31 is in the form of a substantially rectangular plate, anchor holes (not shown in the figure) are formed in at least two of the four corners facing each other is anchored through the anchor bolt 21 is fixed.

Each of the H-beams 40 has two recessed opposing openings 41 arranged in a left and right direction, and each post below the two openings 41. A pair of through-holes 41-1 are formed to face each other along the 30) and are spaced apart by a predetermined distance.

The H-beam 40 is installed on the post cap 33 of the poster 30 to allow height adjustment, and the height adjustment structure is the H-beam 40. Is inserted into a pair of opposing through-holes 41-1, and a lower end of the pair of opposing stud bolts 70 anchored to an upper surface of the post cap 33 and the stud bolts 70. The stud bolt 70 is fastened up and down based on the through hole 41-1 to adjust the height of the H-beam 40 (that is, the access floor 10 installed in a later process). It consists of two nut members 71 for tightening and a washer 72 for providing a buffering force between the through-hole 41-1 and the two nut members 71.

Meanwhile, in the illustrated example, an H-beam 40 is formed, but the post cap 33 having a flat shape of a post 30 that can be adjusted vertically without installing the H-beam 40 is described above. Of course, it is also possible to combine the gas pin by triggering the gas gun (80) to be described later.

The aluminum pad 50 is in the form of a substantially rectangular plate, and four gas pin holes 51 are symmetrically formed near the edges of the four corners, and radially adjacent to the four gas pin holes 41. (4) Four first bolt fastening holes 52 are formed in the inner side, and a total of four protrusions 53 are formed on the upper edges of the four sides so as to protrude upward and are arranged in mutually orthogonal directions.

In the four gas pin holes 51, when the aluminum pad 50 is fixed to the H-beam 40, the gas pins 81 pass through the gas gun 80 when the gas pads 81 are fired. The beam 40 is completely fixed in one operation.

Here, in practice, at least two of the four gas pin holes 51, preferably diagonally, when the gas pad is coupled to the aluminum pad 50 by triggering a gas gun 80 on the H-beam 40. It is preferable to combine the gas pins using only two four gas pin holes 51 on the top.

As such, the aluminum pad 50 is applied to the H-beam 40 by one operation by the gas pin 81 of the gas gun 80 and the gas pin hole 51 positioned at the outermost corner of the aluminum pad 50. Since it can be fixed, the process operation is simplified, there is no fear that the shock at the time of gas pin coupling is not transmitted because no contact is made to the access floor 10 installed in advance adjacent to the operation.

The total four protrusions 53 serve to guide the arrangement of the corner portions in close contact with each other of the four access floors 10 assembled and fixed to the upper portion.

Here, reference numeral 60, which is not described, serves as a rubber pad, which is disposed on the aluminum pad 50 so that the access floor 10 assembled thereon can be held in place without slipping.

The four first bolt fastening holes 52 are located at the inner side of the four gas pin holes 41 radially adjacent to each other, and the aluminum pad 50 is formed by the H-beam ( After the gas pins are coupled through the gas pins 81 on the 40, they are positioned to correspond to the second bolt fastening holes 11 positioned at the corners of the access floor 10, and then tightened through the known SUS bolts 12. By zooming, the corner portion of the access floor 10 is completely fixed to the corner portion of the aluminum pad 50.

4 is a flowchart illustrating a method of installing an access floor of a clean room using a floor fixing member of a clean room according to the present invention, and FIGS. 5A to 5E are methods of installing an access floor of a clean room to which an aluminum pad according to the present invention is applied. As a flow chart showing sequentially, it will be described together for convenience.

The installation method of the access floor of the clean room using the floor fixing member of the clean room according to the present invention includes the steps of installing (pouring) the grid-type concrete PC (precast) 20 on the floor of the clean room (S10), and the lattice. Anchoring the plurality of posts 30 in the form of a matrix forming rows and columns on a concrete concrete PC 20 at a predetermined interval (S20), and on each post 30. Coupling (S30) fixing the H-beam 40, fixing the plurality of aluminum pads 50 using the gas gun 80 (S40), and the four access floors 10 in close contact with each other. One side of the corner is fixed to each of the aluminum pad 40 is made of a step (S50).

In the step (S10) of installing the above-described lattice-type concrete PC (precast) 20 on the floor of the clean room, the lattice-type concrete PC (precast) 20 is installed on the floor of the clean room (not shown in the figure). Placing and arranging on to complete the foundation floor surface. Of course, as described above, instead of the lattice-shaped concrete PC (precast) 20, an iron beam may be used to reinforce the bearing capacity of the floor fixing member 1 (see FIG. 5A).

In the step (S20) of anchoring the plurality of posts 30 in the form of a matrix forming rows and columns on the grid-shaped concrete PC (precast) 20 at a predetermined interval, first, the foundation floor Marking is performed at the position for anchoring each post 30 on the lattice-shaped concrete PC (precast) 20 as a surface, and through the anchor bolt 21 through a drilling operation on the marked portion. Holes (not shown) to anchor the base plate 31 of the post 30 are formed in advance (see FIG. 5B).

Subsequently, at least two anchor holes (not shown in the drawing) of four corners of the base plate 10 of the post 30 are formed in the marking portion of the grid-shaped concrete PC 20 (not shown). After close contact with the anchor bolt 21 is anchored through to install the upright post (30). Of course, the plurality of posts 30 in the manner described above

The grid-shaped concrete PC (precast) 20 is installed in a matrix form forming a row and column at a predetermined interval.

In the step (S30) of coupling and fixing the H-beams 40 on each of the posts 30, first, the lower ends of two opposing stud bolts 70 are placed on the upper surface of the post cap 33. After anchoring the two stud bolts 70 so that a plurality of the uprights are spaced apart, the H-beams 40 are arranged in a row, but the two opposing openings 41 ) And the two stud bolts 70 are inserted into the pair of through-holes 41-1 of the H-beam 40 facing each other while being laid down in the left-right direction. When the height of the H-beam (40) arranged in a plurality of rows spaced apart by a certain distance is set to the desired position, the through hole (41-1) by using two nut members (71) By fully tightening up and down as a reference, the H-beam 40 (i.e., the access floor 10 installed in the post-process) is adjusted to the desired height so that all the H-beams (bea) m) 40 is a leveling operation (see Fig. 5c).

In the step S40 of fixing the plurality of aluminum pads 50 using the gas gun 80, the H-beam (post) 30 is positioned below the flat aluminum pad 50. The gas gun 80 is triggered through the gas pin hole 51 formed at any one of the four corners of the aluminum pad 50 in a state in which it is directly abutted on the beam 40. 81 passes through the gas pin hole 51 so that the lower end of the gas pin is fixed to the upper side of the H-beam 40, and again triggers the gas gun 80 through the gas pin hole 51 formed on the opposite diagonal lines. By fixing one aluminum pad 50 (the use of the other two gas pin holes 51 is optional), so that one aluminum pad 50 is positioned at the desired position of the H-beam 40 Fully fixed on the upper side of (see Figure 5d).

By repeating this operation sequentially, a plurality of aluminum pads 50 are fixed at a desired position by being spaced apart from the H-beam 40 having a plurality of rows at a predetermined distance.

In the step S50 of fixing the bottom surfaces of the four access floors 10 which are in close contact with each other on the aluminum pads 40, the aluminum pads 50 described above are attached to the H-beams 40. After the gas pin coupling through the gas pin 81, the arrangement of the corner portions of the four access floor 10, which is assembled on and fixed to the upper portion through the four orthogonal protrusions 53 protruding orthogonally on the aluminum pad 50, The four first bolt fastening holes 52 of the aluminum pad 50 located inside the radially adjacent four gas pin holes 41 are provided with four access floors. 10) and the corresponding portion of the bolt fastening hole 11 located at the corner of the corner, and tightened through the known SUS bolt 12, the corner portion of the access floor 10 is the corner portion of the aluminum pad 50 Totally adjacent to each of the four adjacent access floors (10) Part is tightly fixed (see FIG. 5E).

Here, the SUS bolt 12 is easily screwed and fastened by a screw groove is formed in the flat head head is engaged with a fixed screwdriver to tighten.

By this continuous operation, the corners of four neighboring access floors 10 (two may be possible) on each of the aluminum pads 50 installed on the multi-row H-beam 40 are mutually intersected. Tighten and fasten it tightly.

Meanwhile, as described above, first, the plurality of aluminum pads 50 are first fixedly assembled using the gas gun 80 on the H-beam 40 having a plurality of rows, and then each aluminum pad 50 is assembled. Although the edges of the four neighboring access floors 10 are fastened to be in close contact with each other, the aluminum pad 50 is simultaneously or subsequent to the work of being fixed on the H-beam 40. As a work, the four neighboring access floors 10 may be directly adhered to each other through the SUS bolts 12.

That is, the four access floor 10 tight fixing operations on one aluminum pad 50 may be performed earlier than the fixing operations on the H-beam 40 of another aluminum pad 50.

In addition, before the step S40 of fixing the plurality of aluminum pads 50 using the gas gun 80, an H-beam in which a post 30 is positioned below the aluminum pad 50. On the surface of each aluminum pad 40, one lower surface of each of four access floors 10, which are in close contact with each other, is in contact with each other without the gas gun 80 being coupled directly to the top of the bottom 40). It may include the step of weakly fixed installation.

The reason for performing such a step is to more accurately check the exact position of each aluminum pad 40 and the access floor 10, and after the position is confirmed, the weakly installed access floor 10 After the removal, the above-described steps of S40 and S50 are performed.

Although the present invention has been described in detail with reference to preferred embodiments according to the present invention, it is only intended to illustrate the present invention and is not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention. It should be noted that this is possible as well as this is also within the scope of the present invention.

1: bottom fixing member of a clean room according to the present invention
10: Access Floor 11: 2nd Bolt Fastening Hole
12: SUS bolt 20: lattice concrete PC
21: anchor bolt 30: post
31: base plate 32: base pipe
33: post cap 40: H-beam
41: opening 41-1: through hole
50: aluminum pad 51: gas pin hole
52: first bolt fastening hole 53: protrusion
60: rubber pad 70: stud bolt
71: nut member 72: washer
80 gas gun 81 gas pin

Claims (8)

In the floor fixing structure of the clean room to support and fix the lower surface of one side of the adjacent edges of at least two neighboring access floors from below,
Lattice-shaped concrete PC (precast) to be poured on the floor of the clean room,
A plurality of posts fixedly installed in a matrix form forming rows and columns at predetermined intervals on the grid concrete PC;
Four gas pin holes facing each other are formed at four corners, and gas pins are spaced apart from each other on the respective posts through a gas gun, and four first bolts are disposed radially inward of the four gas pin holes. It consists of a plurality of rectangular aluminum pads that are formed with a fastening hole,
The bottom of the clean room, characterized in that the second bolt fastening holes formed on the adjacent edges of the at least two neighboring access floors and the corresponding first bolt fastening holes of the respective aluminum pads are bolted to each other. Fixed structure. The method of claim 1,
Lower ends are combined one by one to form a single row so that height adjustment is possible on the plurality of posts arranged in a row, and the H-beams are arranged in a plurality of rows with one row spaced apart. And a plurality of the aluminum pads are gaspin-coupled to upper ends of the plurality of rows of H-beams. The method of claim 2,
Each post is a rectangular plate-shaped base plate anchored in a matrix form forming rows and columns at regular intervals on the upper surface of the grid-shaped concrete PC (precast), and the upright of the base plate integrally upright Comprising the base pipe and the post-shaped cap formed on the top of the base pipe,
Each of the H-beams is provided with two recessed opposing openings arranged in a state of being laid down in the left-right direction, and a predetermined distance corresponding to the post caps of the respective posts below the two openings. It is composed of a pair of through holes spaced apart to form a plurality,
The height adjustment structure is inserted into a pair of opposing through holes of the H-beam, and a lower end thereof has two opposite stud bolts anchored to an upper surface of the post cap, and the stud. Two nut members fastened to the bolt to tighten the stud bolt up and down with respect to the through hole to adjust the height of the H-beam (beam), and the buffer force between the through hole and the two nut member Floor fixing structure of a clean room, characterized in that consisting of a washer to provide. The method of claim 1,
The aluminum pads are formed to protrude upward from the upper edges of the four sides thereof, and four protrusions are formed to be arranged in mutually orthogonal directions, and the edges of the four access floors which are assembled and fixed on the upper part of one aluminum pad are closely attached to each other. Floor fixing structure of the clean room, characterized in that for guiding the placement of. The method according to any one of claims 1 to 4,
And a rubber pad further disposed on each of the aluminum pads so that the access floor assembled on and fixed to the aluminum pads is not slipped and is held in place. Fixing the grid concrete PC to the floor of the clean room,
Anchoring the plurality of posts in a matrix form forming rows and columns at predetermined intervals on the grid concrete PC;
Anchoring the lower end of two opposing stud bolts to the upper surface of each post so that the two stud bolts are spaced apart so that a plurality of the uprights are upright, and then the H-beam A pair of opposing through-holes arranged in a row and facing the two openings of the H-beams lying in the left and right directions and positioned below the two openings of the H-beams. The two stud bolts are inserted into the inside, but when the height of the H-beams arranged in a plurality of rows spaced apart by a predetermined distance is positioned at a predetermined position, the penetration is performed by using two nut members. Coupling and fastening a plurality of rows of H-beams on each post by completely tightening the holes up and down relative to the holes;
A gas pin hole formed to face four corners of the aluminum pad in a state in which a flat aluminum pad is abutted directly on the upper side of the H-beam in which the posts are respectively positioned. The gas gun is triggered through the gas pin to pass through the gas pin hole so that the lower end of the gas pin is fixed to the upper side of the H-beam to be fixed at a predetermined distance from the plurality of rows of H-beams. Fixing and assembling the aluminum pads;
Four first bolt fastening holes of the aluminum pad located in the radially inner side of the four gas pin holes correspond to the second bolt fastening holes located at the corners of the four access floors. Each corner on each aluminum pad mounted on the multi-row H-beams by positioning the two adjacent access floors by tightening the corresponding first and second bolts together through SUS bolts. Installation method of the access floor of the clean room, characterized in that consisting of a step of being completely in close contact fixed. The method according to claim 6,
Clean operation of the clean room, characterized in that the close contact between the four adjacent access floors through the SUS bolt is performed simultaneously with the operation of fixing one aluminum pad on the H-beam (beam). How to install the access floor. The method of claim 7, wherein
Before the step of fixing the plurality of aluminum pads with the gas gun, the aluminum pads are contacted, without coupling by the gas gun, directly above the H-beam where the post is located below. And (iii) only weakly fixing one side lower surface of each of the four access floors in close contact with each other on each of the aluminum pads.

Images