KR102249154B1 - Prefabricated vibration damper that can be dry assembled - Google Patents

Abstract

The present invention relates to a dry-assembly vibration damper which has similar performance with an existing integrated vibration damper and is easily installed in a dry type in a site to simplify construction, secure safety, improve economic efficiency, and reduce a construction period.

Description

Prefabricated vibration damper that can be dry assembled}

The present invention relates to a vibration isolating table that reduces vibration, and in detail, by easily installing a vibration isolating plate manufactured on the outside in a dry manner, not only cleanliness of the space, but also simplifies construction, secures safety, improves economic efficiency, and shortens the construction period, It relates to a prefabricated vibration isolation table capable of dry assembly capable of securing a performance equivalent to that of the existing integrated vibration isolation table.

Since precision equipment such as semiconductors and displays are very vulnerable to vibrations transmitted from the outside from the manufacturing process, a vibration isolation table is used to secure high quality and yield through realization of a micro-vibration environment.

In general, such a vibration isolation table is located between the floor surface and the precision manufacturing equipment so that the vibration is not directly transmitted through the floor by contacting the ground with the precision manufacturing equipment, and absorbs and mitigates external vibration.

To this end, a method of manufacturing a vibration isolation table outside the clean room according to the size of the target manufacturing equipment and carrying it to the site through lifting work and installing it is utilized.

However, when carrying a vibration isolation table made of a single body according to the size of the target manufacturing equipment, a large space is required according to the moving line, and there are many cases where there are restrictions on lifting work according to the installation environment. In particular, not only the process of securing the copper wire, but also the process of installing the vibration isolation table requires a lot of manpower and various costs, and there are various safety problems and protection of manufacturing equipment due to dust generated during the installation process.

For this reason, in some cases, a vibration isolator is manufactured in a split type, and after it is brought into the site, a vibration isolator is installed on the joint by welding and pouring.

Although the space required for installation is relatively small, problems such as fire or dust, which can be fatal to the creation of a clean room in which precision equipment is installed, as welding work and concrete pouring are carried out in the process of connecting the joints at the site. Can occur.

In particular, there are still problems to be solved, such as securing a separate curing period for the realization of the desired strength during wet concrete pouring of the joints, and fear of lowering the bonding strength of the joints.

Korean Patent Registration No. 10-2002804 (2019.07.17)

The present invention was created to solve the above problems, and an object of the present invention is to simplify construction, secure safety, improve economic efficiency, and construct by easily installing dry on site while showing the performance corresponding to the existing integrated vibration isolation table. It is to provide a prefabricated vibration isolation table capable of dry assembly that can shorten the period.

For the above purposes, the present invention is a vibration isolation table in which reinforcing bars are arranged in a gap type inside a square frame of a set standard, and a plurality of vibration suppression plates configured by pouring concrete with a thickness set to the upper and lower sides of the reinforcing bars are interconnected and assembled at the site. , A plurality of assembly members which are bonded to the square frame on one side but protrude vertically along the side where the vibration isolating table is assembled to the other side, and have a plurality of coupling holes formed at equal intervals, and the upper edge of the side where the vibration isolating table is assembled. An insertion groove formed along the upper side with a fastening hole formed thereon, a bolting portion fastened to each coupling hole communicated with each assembly member of a pair of vibration damping plates adjacent to face the side at which the assembly is made, and an adjacent pair And a cover plate that covers both insertion grooves at the same time so as to coincide with the upper side of the vibration damping plate of the, and through which a fastening bolt coupled to the fastening hole passes.

At this time, the assembling member comprises a first connecting plate perpendicular to the ground along a side wall of the vibration isolation table and joined at equal intervals and having a plurality of first coupling holes formed thereon, and the first connecting plate horizontally with the ground on a selected surface of the first connecting plate. A first bolting part that is welded to the first coupling hole communicated with the first connection plate of a pair of adjacent vibration damping plates in contact with each other and composed of a second connection plate having a plurality of second coupling holes formed therein. And, a second bolting part that is fastened to the second coupling hole communicated with the second connection plate of the pair of adjacent vibration damping plates in contact.

In addition, the assembly member is composed of a pair of horizontal plates in which a plurality of first coupling holes are formed but parallel, and a vertical plate in which a plurality of second coupling holes are formed vertically connecting the horizontal plate, so that the cross section is H-beam. It forms a shape and is provided in plural so as to be vertical along the sidewall of the vibration isolation plate, and contacts each outside of the adjacent horizontal plate while the ends of the assembly members of the adjacent pair of vibration isolation plates face each other, respectively, each corresponding to the first coupling hole. A first connection plate having a third coupling hole, and a second connection plate contacting both sides of the adjacent vertical plate, and each having a fourth coupling hole corresponding to the second coupling hole, wherein the bolting portion includes the first coupling hole and It may be configured to be fastened to both the third coupling hole communicated and the fourth coupling hole communicated with the second coupling hole.

In addition, the assembly member has a cross-section in the shape of a square frame, and a plurality of first coupling holes are formed on each side, and in a state in which the ends of the assembly members of a pair of adjacent vibration damping plates face each other, the assembly member is in contact with the assembly member on both sides. It further includes four first connecting plates having second coupling holes corresponding to the first coupling holes, and the bolting portion may be configured to be fastened to all of the second coupling holes communicated with the first coupling holes.

According to the present invention, a plurality of vibration suppression plates are assembled on-site, thereby enhancing construction convenience, while securing vibration characteristics similar to existing integrated vibration isolation tables used in factories such as semiconductors and displays.

In particular, as dry assembly is performed, it is more advantageous in terms of installation difficulty, installation period, dust generation, and environmental safety than conventional wet construction, and dry assembly is possible on site by manufacturing vibration isolation plates in various forms according to the design change of the joint surface.

In this way, the improvement of the installation period and difficulty can reduce the construction cost compared to the prior art.

1 is a plan view according to an embodiment of the present invention,
2 is a front cross-sectional view according to an embodiment of the present invention,
3 is a cut perspective view according to a second embodiment of the present invention,
4 is a plan view according to a second embodiment of the present invention,
5 is a side cross-sectional view according to a second embodiment of the present invention,
6 is a cut perspective view according to a third embodiment of the present invention,
7 is a plan view according to a third embodiment of the present invention,
8 is a side cross-sectional view according to a third embodiment of the present invention,
9 is a cut perspective view according to a fourth embodiment of the present invention,
10 is a plan view according to a fourth embodiment of the present invention,
11 is a side cross-sectional view according to a fourth embodiment of the present invention,
12 is a graph showing the vibration and stiffness analysis results of the existing wet vibration isolator and the dry vibration isolator of the present invention;
13 is a view showing the performance simulation results of the existing wet-type vibration isolator and the present invention dry-type vibration isolator.

Hereinafter, the structure of the prefabricated vibration isolation table capable of dry assembly according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view according to an exemplary embodiment of the present invention, and FIG. 2 is a front cross-sectional view according to an exemplary embodiment of the present invention.

The present invention is a structure for assembling a plurality of vibration damping plates 100 manufactured in a set standard in a dry manner in the field, and reinforcing bars 102 are reinforced in a gap type inside the square frame 101 of the set standard, and the reinforcing bars 102 A plurality of vibration damping plates 100 configured by pouring concrete 103 with a thickness set to the upper and lower sides are configured to be interconnected in the field.

In the case of a vibration suppression plate, the square frame 101 is a rectangular frame made of a metal material, and can be manufactured in various sizes and shapes depending on the installation location, and the reinforcing bar 102 is inside the square frame 101. Reinforced concrete is formed by pouring concrete 103 to accommodate the reinforcing bars 102 that are laid in the vertical and horizontal directions, as well as in the vertical direction, and the reinforced bars 102 are laid inside the square frame 101.

At this time, when the assembly member 110 is welded to the outside of the square frame 101 and assembled with the other re-evaluation plate 100, a bar is placed inside the square frame 101 so that the stress applied to the square frame 101 can be effectively dispersed. ) It is preferable that the shear key 108 is formed to protrude, and the concrete 103 to be poured covers the shear key 108.

In the accompanying drawings, the assembly member 110 is formed on one side of the vibration isolation plate 100 in a form in which a pair of vibration isolation plates 100 are coupled to each other, but in the actual product, two sides of the vibration isolation plate 100 are shown. The assembly member 110 may be formed on each of the sides, three sides, or four sides, so that a coupling structure of the plurality of vibration damping plates 100 may be provided on a side that is selected front, rear, left and right. At this time, the square frame 101 made of a metal material serves as a frame for reinforcing reinforcement and a formwork of the concrete 103 to be poured, and forms an integral structure with the vibration isolation plate 100 and also serves as a reinforcing material.

An assembly member 110 is formed on the side of the vibration suppression plate 100, that is, outside the square frame on the side where the vibration suppression plate is coupled to the other vibration suppression plate.

The assembly member may be configured in various forms, but in one embodiment of the present invention, it is made of a metal plate, and is welded to the square frame 101 on one side, but protrudes vertically along the side on which the assembly is performed on the other side. At this time, as the assembly member 110 is formed of a rectangular metal plate, it may be horizontal or vertical with respect to the ground, but preferably, it is configured to be perpendicular to the ground as shown in the accompanying drawings, and the height of the square frame 101 is It is preferable to be configured with a height excluding the depth of the insertion groove 104 to be described later with respect to the overall height.

At this time, the assembly member 110 has a plurality of coupling holes 113 formed at equal intervals so as to penetrate the front and rear sides, and a plurality of assembly members 110 are joined at equal intervals along the side of the vibration isolation plate on which the assembly is performed. do. In the accompanying drawings, nine assembly members 110 are formed on the side surfaces of the vibration suppression plate 100, but the number of assembly members 110 to be welded may vary depending on the size of the vibration suppression plate 100.

In coupling the plurality of vibration isolation plates 100 to each other, the side on which the assembly is formed, that is, the side on which the assembly member 110 is formed face each other, and the assembly members 110 of the both vibration isolation plates 100 are in contact with each other. And the formed coupling hole 113 communicates with each other.

In this way, a bolting part 120 made of a bolt and a nut is fastened to each of the coupling holes 113 communicated with each of the assembly members 110 of the pair of vibration suppression plates 100 in contact with each other, so that both sides of the vibration suppression plate 100 The combination of

In the conventional wet method, the filler is poured together with the concrete, but in the present invention, as the dry assembly is performed, the metal cover plate 106 is covered so that the combined vibration suppression plate 100 forms a uniform surface, and the assembly member 110 ) Is not exposed.

To this end, an insertion groove 104 is formed along an upper edge of the side on which the vibration suppression plate 100 is assembled, and a fastening hole for coupling a fastening bolt 107 to be described later upward in the insertion groove 104 ( 105) is formed. At this time, the insertion groove 104 is formed with respect to the entire front and rear direction of the vibration isolation plate 100 as shown in the accompanying drawings, and the depth and width are when the cover plate 106 is covered between the connected vibration isolation plates 100, the vibration isolation plate 100 ) It is preferable that the upper side and the upper side of the cover plate 106 are matched, and at the same time, the cover plate 106 is configured to fit into the entire insertion groove 104 of the vibration damping plate 100 facing each other.

The cover plate 106 is a metal plate that covers both insertion grooves 104 at the same time so as to coincide with the upper side of the pair of adjacent vibration damping plates 100, and the fastening bolts 107 coupled to the fastening holes 105 pass through. The vibration suppression plate 100 and the cover plate 106 are combined. At this time, in the cover plate 106, corresponding to the position of the fastening hole 105, the fastening bolt 107 penetrates and at the same time forms a receiving groove to a depth at which the head is accommodated, and then fasten the cover plate 106. It is preferable to configure the bolt 107 so that it does not protrude toward the upper surface of the cover plate 106. In addition, it is natural that some of the upper side of the square frame 101 on the side must be removed according to the depth of the insertion groove 104.

This cover plate 106 basically covers the connection part of the vibration suppression plate 100 evenly to prevent exposure of the assembly member 110 and protects it, as well as enabling smooth movement without falling into a gap when moving the equipment from the upper side, as well as a metal plate. It also plays a role of increasing the bonding force and strength at the connection through the structure.

In the conventional wet method, it is common to pour the filler together with the concrete, but there were time consuming due to the concrete pouring and curing process, the generation of dust, including cement powder, and hassle due to post-treatment, but in the present invention, such hassle through dry assembly. By solving the problem, not only simple construction but also sufficient performance characteristics as described later can be expected.

As mentioned above, it may vary depending on the design, but in one embodiment of the present invention, each vibration isolation plate 100 has a width × length × height of 2000 × 2500 × 250 mm, respectively, and the thickness of the cover plate 106 is The thickness of the 40T, assembly member 110 is 25T, and the height is 210mm, and the square frame 101 has a thickness of 3T, and these dimensions can be changed through the construction site and design.

Figure 3 is a cut perspective view according to the second embodiment of the present invention, Figure 4 is a plan view according to the second embodiment of the present invention, Figure 5 is a side cross-sectional view according to the second embodiment of the present invention, assembled with respect to the first embodiment described above A plate-type assembly member provided with an additional reinforcing structure of the member 110 is shown. In the following description, since the configurations of the vibration isolation plate 100, the insertion groove 104, and the cover plate 106 are substantially the same, the indications in the drawings are omitted.

In the second embodiment of the present invention, the assembly member 110 includes two connecting plates, that is, a first connecting plate 111 and a second connecting plate 112.

Specifically, the first connection plate 111 is a metal plate that is perpendicular to the ground along the sidewall of the vibration suppression plate 100 and is joined at equal intervals and has a plurality of first coupling holes 114, in the first embodiment. It is welded to the square frame 101 in substantially the same structure as the described assembly member.

The second connection plate 112 is a metal plate that is welded to the selected surface of the first connection plate 111 so as to be horizontal with the ground. Likewise, a plurality of second coupling holes 116 are formed, and each first connection The second connection plate 112 is bonded to the plate 111 in the same direction. In the accompanying drawings, the second connection plate 112 is vertically welded to the rear side of the first connection plate 111, and the first connection plate located at the rearmost side based on the vibration isolation plate located on the left is 2 The connecting plate is not joined.

In addition, the length of the second connection plate 112 coupled to the selected first connection plate 111 is to be spaced apart from the adjacent first connection plate 111, but at least the first connection plate 111 is inserted and bolting can be made. It is structured to have sufficient spacing of a certain level. In addition, the width in the left-right direction of the second connecting plate 112 is configured to be relatively narrow compared to the length in the left-right direction of the first connecting plate 111, but the bolting, that is, a tool for combining bolts and nuts, can sufficiently enter and exit therebetween. It is desirable to configure it so that it is.

At this time, in the case of the vibration isolation plate facing each other, the direction of the second connection plate is opposite. That is, in the case of the vibration damping plate located on the right side as shown in the accompanying drawings, the second connection plate is welded to each of the first connection plates so as to face the front, and the second connection plate is not coupled to the first connection plate located at the front.

Through this structure, as in the first embodiment, the second connection plate 112 is also in contact with each other while the first connection plate 111 of the pair of adjacent vibration damping plates 100 is in contact, and correspondingly, the bolting unit 120 denotes a first bolting part 121 fastened to the first coupling hole 114 communicated with the first connection plate 111 of an adjacent pair of vibration suppression plates in contact, and an adjacent pair of vibration suppression plates Consists of a second bolting portion 122 that is fastened to the second coupling hole 116 communicated with the second connection plate 112 of FIG.

For smooth assembly, make sure that the bolt is located on the outside and the nut is located on the inside, but the bolting part is not difficult through a special tool in a form that temporarily supports the nut and allows access between the vibration isolation plate 100 and the second connection plate 112. Fastening can be made.

In the second embodiment of the present invention, reinforcement for external forces in the vertical, left and right directions and the front and rear directions may be made through the structure of these two connecting plates.

Figure 6 is a cut perspective view according to the third embodiment of the present invention, Figure 7 is a plan view according to the third embodiment of the present invention, Figure 8 is a side cross-sectional view according to the third embodiment of the present invention, the assembly member of the plate-shaped structure described above ( 110) shows a reinforced structure in the form of an H-beam.

In the third embodiment of the present invention, the assembly member 110 is specifically composed of a pair of horizontal plates 118 in parallel, and a vertical plate 119 vertically connecting the horizontal plate 118, and has a cross section. It is made in the form of an H-beam and is provided in plural along the sidewall of the vibration isolation plate 100 to form a perpendicular to the square frame 101 and are welded at equal intervals. In the accompanying drawings, the eight assembly members 110 are joined, and the number may be added or subtracted according to the size of the vibration damping plate.

At this time, a plurality of first coupling holes 114 are formed in the horizontal plate 118, and a plurality of second coupling holes 116 are formed in the vertical plate 119, respectively.

In addition, in interconnecting the plurality of vibration suppression plates 100, the first connection plates 111 are each outside the horizontal plate 118 adjacent to each other in a state in which the ends of the assembly members 110 of the pair of adjacent vibration suppression plates face each other. ), the second connecting plate 112 is in contact with each side of the adjacent vertical plate 119, and the first connecting plate 111 corresponds to the first coupling hole 114 of the assembly member 110 on both sides. Third coupling holes 115 are formed, and fourth coupling holes 117 corresponding to the second coupling holes 116 of both assembly members 110 are formed in the second connection plate 112, respectively.

At this time, for smooth vibration damping characteristics, it is preferable that the assembly members 110 on both sides are spaced apart at a predetermined interval, and the bolting portion 120 is a third assembly communicating with the first coupling holes 114 of the assembly members 110 on both sides. Both the coupling hole 115 and the fourth coupling hole 117 communicated with the second coupling hole 116 are fastened, and both assembly members 110 are connected.

When connecting the assembly member 110, it is preferable to first fasten the second connecting plate 112 to both sides of the adjacent vertical plate 119, and then fasten the first connecting plate 111 to the outside of the upper and lower horizontal plates. 1 By configuring the width of the connecting plate 111 to be relatively narrower than the width of the horizontal plate 118 and securing a sufficient distance between the assembly members 110, the bolting of the first connecting plate 111, that is, the bolt And it is preferable to configure a tool for coupling the nut to be sufficiently in and out.

This structure is substantially symmetrical in the vertical and horizontal directions of the assembly member 110, and may be reinforced corresponding to external forces in the vertical and horizontal directions and the front and rear directions compared to the first and second embodiments.

Figure 9 is a cut perspective view according to the fourth embodiment of the present invention, Figure 10 is a plan view according to the fourth embodiment of the present invention, Figure 11 is a side cross-sectional view according to the fourth embodiment of the present invention, the shape of the assembly member described above is changed Thus, it shows the assembly member 110 reinforced in the shape of a square tube.

In the fourth embodiment of the present invention, the assembly member 110 is specifically made in the shape of a square tube in cross section, but a plurality of first coupling holes 114 are formed on each of the four surfaces. In the accompanying drawings, eight assembly members 110 are formed, which may be added or subtracted according to the size of the vibration damping plate 100.

At this time, the second coupling holes 116 corresponding to the first coupling holes 114 formed on the corresponding surfaces of both sides in a state where the ends of the assembly members 110 of the adjacent pair of vibration damping plates 100 face each other are formed. Four first connecting plates 111 are provided to come into contact with each side of the assembly member 110 on both sides.

In addition, the bolting parts 120 are all fastened to the second coupling holes 116 communicated with the first coupling holes 114 for each of the first connection plates 111 to connect the assembly members 110 on both sides.

At this time, the pair of assembly members 110 facing each other is provided with a predetermined distance, but the width of each first connecting plate 111 is formed relatively smaller than the length of each side of the assembly member 110 to each of the first connections. A gap is formed between the plates 111 in communication with the inner side of the assembly member 110, and the bolt is placed on the outside and the nut is placed on the inside, but temporarily supports the nut, and the assembly member 110 and the first connection plate (111) The bolting part 120 is smoothly fastened through a special tool in a form that can be accessed through.

12 is a graph showing the vibration and stiffness analysis results of the existing wet type vibration isolator and the present invention dry type vibration isolator, showing that the dry type vibration isolator according to the present invention exhibits similar dynamic characteristics compared to the existing wet type. However, although the primary natural frequency is slightly lower, it can be seen that there are considerable strengths in consideration of the above-mentioned construction and cost advantages as it is confirmed that the dynamic stiffness of substantially equal or higher can be secured.

13 is a diagram showing the performance simulation results of the existing wet-type vibration isolator and the present invention dry-type vibration isolator. As a result of the simulation according to various external stress conditions, the dry-type vibration isolator according to the present invention is similar to the external stress condition compared to the existing wet method. , It was confirmed that it shows excellent properties under some conditions.

The rights of the present invention are not limited to the embodiments described above and are defined by what is described in the claims, and that a person having ordinary knowledge in the field of the present invention can make various modifications and adaptations within the scope of the rights described in the claims. It is self-explanatory.

100: vibration isolation plate 101: square frame
102: reinforcement 103: concrete
104: insertion groove 105: fastening hole
106: cover plate 107: fastening bolt
108: shear key 110: assembly member
111: first connecting plate 112: second connecting plate
113: coupling hole 114: first coupling hole
115: third coupling hole 116: second coupling hole
117: fourth coupling hole 118: horizontal plate
119: vertical plate 120: bolting part
121: first bolting part 122: second bolting part

Claims (4)

Reinforcing bars 102 are laid in a grid shape inside the square frame 101 of the set standard, and a plurality of vibration damping plates 100 formed by pouring concrete 103 at a thickness set to the top and bottom of the reinforcing bars 102 are mutually In the vibration isolation table to be connected and assembled,
A selection of a first connection plate 111 formed with a plurality of first coupling holes 114 formed perpendicularly to the ground along the sidewall of the vibration suppression plate 100 and at equal intervals, and the first connection plate 111 An assembly member 110 consisting of a second connection plate 112 that is welded to the surface so as to be horizontal with the ground and has a plurality of second coupling holes 116 formed thereon,
An insertion groove 104 formed along the upper edge of the side on which the vibration isolation table is assembled and having a fastening hole 105 upward,
The first bolting portion 121 fastened to the first coupling hole 114 communicated with the first connection plate 111 of the adjacent pair of vibration isolation plates 100 in contact, and the adjacent pair of vibration isolation plates 100 A bolting part 120 composed of a second bolting part 122 fastened to the second coupling hole 116 communicated in a state in which the second connection plate 112 of) is in contact,
It includes a cover plate 106 that covers both insertion grooves 104 at the same time so as to coincide with the upper side of the pair of adjacent vibration damping plates 100, and through which the fastening bolts 107 coupled to the fastening holes 105 pass. Prefabricated vibration isolation table capable of dry assembly characterized by.
delete Reinforcing bars 102 are laid in a grid shape inside the square frame 101 of the set standard, and a plurality of vibration damping plates 100 formed by pouring concrete 103 at a thickness set to the top and bottom of the reinforcing bars 102 are mutually In the vibration isolation table to be connected and assembled,
A plurality of first coupling holes 114 are formed, a pair of horizontal plates 118 that are parallel and vertically connecting the horizontal plate 118, but a vertical plate having a plurality of second coupling holes 116 ( 119) has a cross-section in the form of an H-beam, and is provided in plural so as to be vertical along the sidewall of the vibration isolation plate 100,
In a state in which the ends of the assembly members 110 of the adjacent pair of vibration damping plates face each other, each of the adjacent horizontal plates 118 comes into contact with each other, but each of the third coupling holes 115 corresponding to the first coupling holes 114 is formed. Including a first connection plate 111 and a second connection plate 112 in which the fourth coupling holes 117 corresponding to the second coupling holes 116 are formed respectively in contact with both sides of the adjacent vertical plate 119 The assembly member 110 and,
An insertion groove 104 formed along the upper edge of the side on which the vibration isolation table is assembled and having a fastening hole 105 upward,
A bolting part 120 that is fastened to both the third coupling hole 115 in communication with the first coupling hole 114 and the fourth coupling hole 117 in communication with the second coupling hole 116
It includes a cover plate 106 that covers both insertion grooves 104 at the same time so as to coincide with the upper side of the pair of adjacent vibration damping plates 100, and through which the fastening bolts 107 coupled to the fastening holes 105 pass. Prefabricated vibration isolation table capable of dry assembly characterized by.
Reinforcing bars 102 are laid in a grid shape inside the square frame 101 of the set standard, and a plurality of vibration damping plates 100 formed by pouring concrete 103 at a thickness set to the top and bottom of the reinforcing bars 102 are mutually In the vibration isolation table to be connected and assembled,
The cross-section is made in the shape of a square frame, and a plurality of first coupling holes 114 are formed on each side, and both side assembly members 110 in a state in which the ends of the assembly members 110 of the adjacent pair of vibration damping plates 100 face each other. ), but the assembly member 110 including four first connection plates 111 in which second coupling holes 116 corresponding to the first coupling holes 114 on both sides are formed,
An insertion groove 104 formed along the upper edge of the side on which the vibration isolation table is assembled and having a fastening hole 105 upward,
The bolting part 120 fastened to both the first coupling hole 114 and the second coupling hole 116 communicated
It includes a cover plate 106 that covers both insertion grooves 104 at the same time so as to coincide with the upper side of the pair of adjacent vibration damping plates 100, and through which the fastening bolts 107 coupled to the fastening holes 105 pass. Prefabricated vibration isolation table capable of dry assembly characterized by.

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