KR101923140B1 - Seismic isolator injected non-shrinkage mortar and Method of replacing seismic isolator injected non-shrinkage mortar - Google Patents

Abstract

The present invention relates to a method of replacing an anti-shrinkage mortar-injected anti-vibration device and an anti-shrinkage mortar-injected anti-vibration device, the upper module being connected to the upper structure; A lower module connected to the lower structure and having a shrinkage mortar layer; Inspecting whether the non-shrinkage mortar injected seismic device and the face-shielded structure are replaced or not; and inspecting whether the non-shrinkable mortar-injected seismic device is replaced with the seismic-resistant structure, wherein the seismic resistant structure is installed between the upper module and the lower module. Jacking the upper structure considering a load of the isolation structure; Removing the shrunk mortar layer of the lower module; Replacing the base isolation structure, the upper inner plate, and the lower inner plate; And injecting the non-shrinkage mortar to form the non-shrinkage mortar layer, wherein the non-shrinkage mortar is injected again.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of replacing a non-shrinkage mortar and a method of replacing a non-shrinkage mortar in a non-shrinkage mortar,

The present invention relates to a method of replacing a non-shrinkable mortar-injected seismic device and a non-shrinkable mortar-injected seismic device. More particularly, the present invention relates to a method of replacing a non- And to a method of replacing an anti-shrinkage mortar injected seismic device.

There are examples of structures that use seismic techniques, or even seismic techniques, as earthquake threats increase. The seismic isolation system applies the seismic isolation technique to transmit the load on the upper part to the lower part, and plays a role of maintaining soundness by making the structure long lasting due to an impact such as an external earthquake. Especially in nuclear power plants, it is necessary to apply isolation technique because there are devices that are sensitive to displacement such as reactor cooling system.

Conventionally, a seismic isolation apparatus to be applied to a nuclear power plant has been developed, but it is difficult to replace the seismic isolation system when it is damaged due to defects or external impacts of the apparatus. Although the design life of an isolation device is designed to be more than 60 years, it is necessary to constantly check the performance of the device and it may be necessary to replace it. A conventional seismic isolation device is provided between an upper structure and a lower structure. If there is no separate replacement device for replacing the seismic isolation device, there is a problem that the substructure is partially damaged and the seismic isolation device must be replaced.

In order to solve such a problem, Japanese Unexamined Patent Publication No. 0324835 (published on September 10, 2012) discloses a structure in which an isolation device is provided between an upper structure and a lower structure, and a movable member having a screw structure is provided on the upper side of the isolation device have. The movable member, which has a screw structure, is rotated to create a working space, thereby replacing the seismic isolation device. However, in order to rotate the movable member, there is a disadvantage that a work space with the adjacent seismic countermeasure is required and the empty space under the upper structure is extended by the space generated by the rotation of the movable member. Further, there is a problem that it is difficult to support the upper structure having a high load as the movable member.

Another technique is to make a space by using hydraulic pressure for replacement of the isolation device in U.S. Patent Application Publication No. 2014-0245670 (Apr. 2014.09.04), but the fluid used for the hydraulic pressure is a cold region, There is a problem in that the fluid may freeze or the volume may change according to the displacement of the structure.

In addition, since the conventional isolation device is not integrated, a plate is coupled to the isolation structure to fix the isolation device to the upper structure and the lower structure. However, it is difficult to guarantee the performance of the original seismic isolation device in a form in which the plate and the seismic isolation structure are separated from each other, and it takes much time to install and replace the seismic isolation device, .

The present invention was invented by performing the national research and development project (research title: development of application technology of isolation system compared with export type nuclear power plant, task assignment number: 20114510100101).

Japanese Laid-Open Patent No. 2012-0324835 (Released on September 10, 2012) U.S. Published Patent Application No. 2014-0245670 (published on April 4, 2014)

The present invention has been made to solve the above-mentioned problems. More specifically, the present invention relates to an anti-shrinkage mortar-injected seismic device capable of replacing a seismic isolation device while maintaining soundness of a structure by providing a non- The present invention relates to a method of replacing an isolation device into which a shrinkage mortar is injected.

In order to accomplish the above object, the present invention provides an anti-shrinkage mortar injection apparatus comprising: an upper module connected to the upper structure; A lower module connected to the lower structure and having a shrinkage mortar layer; And a base structure provided between the upper module and the lower module and capable of absorbing an external impact.

In order to accomplish the above object, the upper module of the present invention has an upper plate connected to the upper structure, a lower plate disposed below the upper plate and connected to the face- The lower module includes a lower plate connected to the lower structure, and a lower plate disposed on the upper plate. The lower module is connected to the face-shielded structure, Wherein the shrinkable mortar layer is formed between the lower plate and the lower inner plate, and the lower module comprises a lower shroud surrounding the periphery of the shrunk mortar layer Containing cover module It is preferred.

In order to achieve the above-mentioned object, the cover module of the present invention is characterized in that the cover module includes a fixing part disposed on the upper part of the lower inner plate, and a fixing part extending downward from the fixing part, And a lid part surrounding the non-shrinkable mortar layer. Preferably, the fixing part and the lid part are hinged to each other. Preferably, the cover module comprises a plurality of separating plates.

In order to accomplish the above object, the upper module, the lower module, and the seismic isolation structure of the non-shrinkage mortar injection apparatus of the present invention are preferably integrally formed, and the upper inner plate, the lower inner plate, Preferably, the seismic isolation structure is integrally formed for replacement. Preferably, the seismic isolation structure comprises a rubber plate, an iron plate, and a lead core inserted into the rubber plate and the steel plate.

In order to accomplish the above object, the present invention provides a method of replacing an unshrunk mortar-injected seismic isolation apparatus, the method comprising the steps of: An upper module including an upper inner plate connected to the isolation structure to fix the isolation structure to the upper module, a lower plate connected to the lower structure, and a lower plate connected to the isolation structure, And a lower module comprising a lower inner plate capable of fixing the isolation structure to the lower module and a shrinkable mortar layer disposed between the lower plate and the lower inner plate, Checking; Jacking the upper structure considering a load of the isolation structure; Removing the shrunk mortar layer of the lower module; Replacing the base isolation structure, the upper inner plate, and the lower inner plate; And re-injecting the non-shrinkable mortar to form the shrink-proof mortar layer.

In order to accomplish the above object, according to the present invention, in the method of replacing a non-shrinkage mortar-injected seismic apparatus, the seismic structure, the upper inner plate, and the lower inner plate are integrally formed and replaced, Preferably comprises a cover module surrounding the periphery of the non-shrinkage mortar layer.

In order to accomplish the above object, there is provided a method of replacing a shrink-proof mortar-injected vibration isolator according to the present invention, wherein removing the shrink-free mortar layer of the lower module comprises: Wherein the step of forming the non-shrinkable mortar layer by injecting the non-shrinkable mortar comprises: joining the cover module and inserting a flat jack having a press-fit hole between the lower plate and the lower inner plate, It is preferable to inject non-shrinkable mortar through the press-fitting hole.

According to another aspect of the present invention, there is provided a method for replacing a shrink-proof mortar injected with a shrink-proof mortar according to the present invention, wherein the cover module includes a fixing part disposed on the upper part of the lower inner plate, Wherein the step of removing the non-shrinkable mortar layer of the lower module comprises the steps of: (a) removing the shrinkable mortar layer of the lower module, Wherein the step of removing the shrinkage mortar layer and the shrinkage mortar layer to form the shrinkage mortar layer after the cover module is removed comprises re-joining the cover module to open the cover part of the cover module, A vertical tube communicating with the open portion of the lid portion is provided, It is preferable to inject the non-shrinkable mortar.

The present invention relates to an anti-shrinkage mortar-injected anti-vibration device and a method of replacing the anti-shrinkage mortar-injected anti-vibration device that can replace the anti-vibration device while maintaining the integrity of the structure by providing a non- shrinkable mortar layer on the lower module , There is an advantage that the seismic isolation device can be replaced without damaging a part of the substructure when the seismic isolation device is replaced.

In addition, since the isolation structure, the upper inner plate, and the lower inner plate are integrally formed, the work is simplified and the workability can be improved. In addition, it is possible to provide a space for replacing the isolation device through the non-shrinkage mortar layer, and the lower inner plate and the shrink-proof mortar layer can be protected through the cover module, thereby preventing deformation of the shrink-proof mortar layer.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an anti-shrinkage mortar injection apparatus according to an embodiment of the present invention; FIG.
2 is a cross-sectional view of Fig.
3 is a partial enlarged view of Fig.
4 is a view showing a cover module and a lower inner plate according to an embodiment of the present invention.
FIG. 5 is a view showing an isolated structure, an upper inner plate, and a lower inner plate integrally fabricated according to an embodiment of the present invention.
FIG. 6 is a flowchart illustrating a method of replacing an anti-shrinkage mortar-injected isolation device according to an embodiment of the present invention.
7 is a diagram illustrating the jacking of a superstructure in accordance with one embodiment of the present invention.
8 is a view illustrating a method of injecting non-shrinkable mortar according to an embodiment of the present invention.
Figure 9 is a diagram illustrating a method for injecting shrink-free mortar according to another embodiment of the present invention.

The present invention relates to an anti-shrinkage mortar-injected anti-vibration device and a method of replacing an anti-shrinkage mortar-filled anti-vibration device that can replace the anti-vibration device while maintaining soundness of the structure by providing a non- shrinkable mortar layer on the lower module . Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, the non-shrinkage mortar injection apparatus 100 of the present invention includes an upper module 110, a lower module 120, and a seismic structure 130. FIG. 1 is a perspective view of a vibration isolation device 100 to which a shrink-proof mortar is injected according to the present invention, and a part of the lower module 120 is cut away.

2 and 3, the upper module 110 includes an upper plate 111 connected to the upper structure 171 and a lower plate 111 disposed below the upper plate 111 and connected to the non- And an inner plate 112. The upper plate 111 is a portion buried in the upper structure 171.

The upper inner plate 112 is connected to the unsealed structure 130 to fix the unsealed structure 130 to the upper module 110. The upper module 110 may include an upper horizontal leveling device 113 and an upper stud 114. The upper horizontal leveling device 113 is for horizontally managing the upper structure 171 and the upper plate 111, the upper inner plate 112 and the non-facing structure 130 and is provided on the upper plate 111 . The upper stud 114 is provided on the upper plate 111 to transmit a force applied to the upper structure 171. As the upper stud 114 is provided, the amount of reinforcement of the upper structure 171 can be reduced. A plurality of the upper leveling devices 113 and the upper studs 114 may be disposed, and the number thereof may vary depending on the structure.

The bolts 160 are inserted into the upper inner plate 112 and are passed through the upper plate 111 to the upper horizontal leveling device 110. [ (Not shown). That is, the upper inner plate 112, the upper plate 111, and the upper horizontal leveling device 113 are connected through the bolts 160.

2 and 3, the lower module 120 includes a lower plate 121 connected to the lower structure 172, a lower plate 121 disposed on the lower plate 121, And an inner plate 122. The lower plate 121 is embedded in the lower structure 172 and the lower plate 121 and the lower inner plate 122 are integrally disposed on the pedestal 174.

The pedestal 174 is disposed on the lower structure 172 and the pedestal 174 is disposed on the lower structure 172. Referring to Figure 7, Is buried in the pedestal 174 of the lower structure 172.)

The lower inner plate 122 is connected to the unsealed structure 130 to fix the unsealed structure 130 to the lower module 120. The lower module 120 may include a lower horizontal leveling device 123 and a lower stud 124. The lower horizontal leveling device 123 is for horizontal management between the lower structure 172 and the lower plate 121, the lower inner plate 122 and the isolation structure 130, Respectively. The lower stud 124 is provided below the lower plate 121 to transmit a force applied to the lower structure 172. As the lower stud 124 is provided, the amount of reinforcement of the lower structure 172 can be reduced. A plurality of the lower horizontal leveling devices 123 and the lower studs 124 may be disposed, and the number thereof may vary depending on the structure.

A non-shrinkable mortar layer 140 is formed on the lower module 120 between the lower plate 121 and the lower inner plate 122. The non-shrinkage mortar layer 140 is removed at the time of replacing the seismic isolation device 100, and the thickness thereof may be 20 mm to 30 mm. However, the thickness of the non-shrinkable mortar layer 140 is not limited thereto, and the required thickness may vary depending on the analysis of the structure.

The lower module 120 may further include a cover module 150 surrounding the periphery of the non-shrinkage mortar layer 140. The cover module 150 includes a fixing part 151 disposed on the lower inner plate 122 and a fixing part 151 extending downward from the fixing part 151 to surround the periphery of the lower inner plate 122 and the non- And a cover 152 that can surround the periphery of the cover 140. That is, the fixing portion 151 is a portion to be mounted on the lower inner plate 122, and the lid 152 covers the lower inner plate 122 and the non-shrinkable mortar layer 140 to protect the lower inner plate 122 and the non- You can.

The fixing portion 151 and the cover 152 may be hinged together. The lid part 152 is rotatable about the fixing part 151 and is configured to open and close the lid part 152 with the fixing part 151 as a center. The fixing part 151 and the cover part 152 are connected to each other by a hinge 153. The hinge 153 may be formed in various shapes as long as the cover part 152 can rotate . The cover module 150 may be used as a mold when the non-shrinkable mortar layer 140 is formed. The cover module 152 may be opened from the fixing portion 151 to inject the shrinkable mortar 141 And after the injection of the non-shrinkable mortar 141, the lid part 152 can be closed again.

4, the cover module 150 is detachably coupled to the lower inner plate 122 and may be temporarily opened later, so that the cover module 150 is formed of a plurality of separation plates . The cover module 150 is mounted on the lower inner plate 122. When the cover module 150 is not formed of a plurality of separating plates, 130 can not raise the cover module 150 above the lower inner plate 122.

When replacing the non-shrinkable mortar layer 140, the non-shrinkable mortar 141 may be injected using the flat jack 180 to form the non-shrinkable mortar layer 140. At this time, The cover module 150 may be formed of a plurality of separating plates for arranging the press-fitting holes 181 for injecting the press-fitting holes 141 into the cover module 150. The indentation holes 181 of the flat jacks 180 are disposed on the surfaces that are separated from each other between the plurality of separation plates and the non-shrinkable mortar 141 is injected through the indentation holes 181.

Preferably, the cover module 150 may be divided into two left and right panels or two upper and lower panels. However, the shape of the cover module 150 is not limited thereto, and the cover module 150 may be separated into various shapes as long as the cover module 150 can be placed on the lower inner plate 122. For example, upper and lower plates.

The fastening method of the lower module 120 is fastened using bolts 160. The cover module 150 is mounted on the lower inner plate 122 and the bolt 160 is inserted into the cover module 150 to pass through the lower inner plate 122 and the lower plate 121 To the lower horizontal leveling device 123. At this time, a space for forming the non-shrinkable mortar layer 140 is provided between the lower plate 121 and the lower inner plate 122, and the space between the lower plate 121 and the lower inner plate 122, (122).

The isolation structure 130 is installed between the upper module 110 and the lower module 120 and transmits a load of the upper structure 171 to the lower structure 172 to absorb external impact You can do it. The seismic isolation structure 130 can reduce the seismic force by lengthening the natural period of the structure when an earthquake occurs. The concrete function is a known technique and will not be described in detail.

2, the isolation structure 130 may include a rubber plate 131, an iron plate 132, and a lead 133 inserted into the rubber plate 131 and the steel plate 132. By using the restoring force of the rubber plate 131, the upper structure 171 can be restored when an external impact is applied. However, the structure of the seismic isolation structure 130 is not limited to this, and it is needless to say that various structures can be used as long as the structure absorbs external impact and can make the structure long during the earthquake.

When the upper module 110, the lower module 120, and the facing structure 130 are initially installed in the upper structure 171 and the lower structure 172, the upper module 110, the lower module 120, and the isolation structure 130 may be integrally formed.

Referring to FIG. 5, the isolation structure 130 may be integrally formed with the upper inner plate 112 and the lower inner plate 122 for replacement. The monoclinic structure 130 is integrally manufactured to simplify the work and improve the workability. In addition, since the seamed structural part 130 is integrally manufactured, a construction error occurring in the field can be reduced. The upper inner plate 112 and the lower inner plate 122 must be coupled to each other in the field in order to fix the isolation structure 130 to the upper module 110 and the lower module 120. At this time, An error may occur. However, since the isolation structure 130 is integrally formed with the upper inner plate 112 and the lower inner plate 122 in advance, it is possible to reduce the construction error.

That is, the isolation structure 130, the upper module 110, the lower module 120, and the isolation structure 130 are integrally formed and installed between the upper structure 171 and the lower structure 172 Only the upper inner plate 112 and the lower inner plate 122 are integrally formed and installed to replace the isolation structure 130 when the isolation device 100 is replaced later .

The bolts 160 used in the upper module 110 and the lower module 120 are preferably threaded. The bolts 160 are inserted into the non-shrinkable mortar layer 140 of the lower module 120. When the bolts 160 are not threaded, the bolts 160 are inserted into the shrinkable mortar layer 140 It may happen that it does not harden. However, when a thread is formed in the bolt 160, the non-shrinkable mortar layer 140 is hardened along the thread shape of the bolt 160, and the bolt 160 can be rotated and removed according to the shape of the thread. In order to easily remove the bolt 160 from the non-shrinkable mortar layer 140, lubricant may be applied to the surface of the bolt 160 before the shrink-proof mortar 141 is injected.

A method for replacing the non-shrinkage mortar-injected vibration isolator 100 according to the present invention will now be described. Shock absorber mortar-injected vibration isolator 100 used in the method of replacing vibration isolator 100 in which shrink-proof mortar is injected has the same structure as that described above, and detailed description of each constitution has already been described .

Referring to FIG. 6, the method of replacing the non-shrinkage mortar-injected seismic apparatus of the present invention includes a step S100 of inspecting the isolation structure 130, a jacking step S200 of the upper structure 171, Shrinkage mortar layer 140 removal step S300 of the module 120, the isolation structure 130, the upper inner plate 112, the lower inner plate 122 replacement step S400, the shrinkage mortar layer 140, And a reforming step (S500).

The step S100 of inspecting the replacement of the isolation structure 130 is a step of checking whether the isolation structure 130 in operation is replaced or not by checking the displacement difference between the lowermost part and the uppermost part of the isolation structure 130, In the step of determining whether or not to replace the damaged data, it is determined whether or not the damaged data is damaged. If there is a need for replacement after judging whether or not there is damage, replacement is carried out.

Referring to FIG. 7, the jacking step S200 of the upper structure 171 is a step of supporting the upper structure 171 by using the hydraulic equipment 173 to advance the replacement. The design load to be supported by the hydraulic equipment is calculated in consideration of the unit design load data of the corresponding isolation structure 130 and the upper structure 171 is supported by setting the hydraulic equipment 173 to the design load.

The step S300 of removing the non-shrinkable mortar layer 140 of the lower module 120 is a step of removing the shrink-proof mortar layer 140 using a lanyard or the like. Before removing the shrink-free mortar layer 140, the bolts provided in the lower module 120 are removed and the cover module 150 surrounding the shrink-free mortar layer 140 is removed. When the shrink-free mortar layer 140 is removed using a mechanism such as a string fastener, the upper module 110, the unsealed structure 130, and the lower inner plate 122 are suspended in the upper structure 171. That is, as the non-shrinkage mortar layer 140 is removed, a certain space is generated. Here, the mortar residue generated when the non-shrinkable mortar layer 140 is removed may be introduced into the hole through which the bolt 160 is inserted, which is cleaned using a mechanism such as a vacuum cleaner.

The unsealed structural part 130 and the lower inner plate 122 are supported by a mechanism such as a forklift and the bolts 160 of the upper module 110 are thereafter removed. When the bolts 160 of the upper module 110 are removed, the upper plate 111 embedded in the upper structure 171 is connected to the upper structure 171, and the upper inner plate 112 is connected to the upper plate 111 ). Finally, the non-shrinkable mortar layer 140 is removed to separate the base structure 130 and the lower inner plate 122 from the lower structure 172. When the bolts 160 are removed from the upper module 110, The plate 112 is also separated from the superstructure 171. That is, the upper inner plate 112, the seamed structure portion 130, and the lower inner plate 122 are floated in a state of being supported by a forklift or the like.

The step of replacing S400 of the isolation structure 130, the upper inner plate 112 and the lower inner plate 122 includes the step of separating the upper structure 171 and the upper structure from the lower structure 172, 112) and the lower inner plate 122 are replaced. Since the isolation structure 130, the upper inner plate 112 and the lower inner plate 122 are finally separated from the upper structure 171 and the lower structure 172, they can be easily removed using a forklift or the like.

Here, the isolation structure 130, the upper inner plate 112, and the lower inner plate 122 may be integrally formed. Since the isolation structure 130, the upper inner plate 112 and the lower inner plate 122 are integrally formed, the damaged inner structural body 130, the upper inner plate 112, and the lower inner plate 122 are removed So that the new unsealed structural member 130, the upper inner plate 112, and the lower inner plate 122 can be inserted once again.

The step S500 of re-forming the non-shrinkable mortar layer 140 is a step of re-forming the shrink-proof mortar layer 140. [ The upper inner plate 112 and the lower inner plate 122 are inserted and the bolts 160 of the upper module 110 are fastened to the upper inner plate 112, To the upper structure (171) through the upper plate (111). Then, after the cover module 150 is coupled to the lower inner plate 122, the lower module 120 is fastened through the bolts 160. At this time, a gap between the lower inner plate 122 and the lower plate 121 is defined as a space in which the non-shrinkable mortar layer 140 is formed. Thereafter, the non-shrinkable mortar 141 is injected into this space.

Various methods can be used for injecting the non-shrinkable mortar 141. 8, the cover module 150 includes a fixing portion 151 disposed on the lower inner plate 122 and a fixing portion 151 extending downward from the fixing portion 151 to surround the lower inner plate 122, And the lid 152 may be hinged to the lid 152 to open the lid 152 through the hinge 153. The lid 152 may be formed of a lid 152 surrounding the periphery of the mortar layer 140, .

The lid portion 152 may surround four sides of the lower inner plate 122 and open two facing surfaces when the non-shrinkable mortar 141 is injected. The non-shrinkage mortar 141 is injected through the open surface and filled with the non-shrinkage mortar 141, then the one surface and the other surface are closed and the non-shrinkage mortar 141 is hardened. When the non-shrinkable mortar 141 is hardened, a non-shrinkable mortar layer 140 is formed between the lower inner plate 122 and the lower plate 121. Here, the cover 152 of the cover module 150 serves as a mold for the shrink-free mortar 141. (Opening two facing surfaces of the cover portion 152 is to prevent voids from being generated when the mortar is injected.)

When the non-shrinking mortar 141 is injected, as shown in FIG. 8, the shrink-free mortar 141 can be injected by gravity. Shrinkable mortar 141 can be injected by providing a vertical tube 142 that opens the lid 152 of the cover module 150 and communicates with the open portion of the lid 152. [ When the non-shrinking mortar 141 is injected by gravity, the occurrence of voids can be minimized.

Referring to FIG. 9, the flat jack 180 may be used as a method of injecting the non-shrinkable mortar 141. The flat jack 180 is a jack in which two thin steel sheets are hermetically sealed, and a press-fitting hole 181 in which a filler such as mortar is press-fitted is provided inside. The flat jack 180 is inserted into the non-shrinkable mortar layer 140 and the non-shrinkable mortar 141 is injected through the press-fitting hole 181 to fill the non-shrinkable mortar layer 140 with the flat jack 180 Fill. At this time, the cover module 150 can act as a mold.

The cover module 150 may be formed of a plurality of separating plates, in which a plurality of separating plates are formed along the divided surfaces so that the press-fitting holes 181 of the flat jacks 180 are visible. That is, the cover module 150 is formed by surrounding the lower inner plate 122, and only the press-fit holes 181 of the flat jacks 180 can be seen through the split surfaces of the separating plates. The flat jack 180 can be filled through the press-in hole 181 to form the non-shrinkable mortar layer 140. (Here, the flat jack 180 is fixed to the non-shrinkable mortar layer 140 and can be used semi-permanently.)

The method of injecting the non-shrinkable mortar 141 in order to form the non-shrinkable mortar layer 140 is not limited to this, and it is needless to say that the shrink-proof mortar 141 can be injected by various methods.

When the non-shrinkage mortar layer 140 is formed, the completion inspection is carried out. If the non-shrinkage mortar layer 140 is not passed, the jacking step S200 of the upper structure 171, the non-shrinkage mortar layer 140 of the lower module 120 (Step S300), the isolation structure 130, the upper inner plate 112, the lower inner plate 122 replacement step S400, and the non-shrinkage mortar layer 140 reformation step S500.

The method of replacing the non-shrinkage mortar injection apparatus of the present invention and the method of replacing the non-shrinkage mortar injection apparatus has the following effects.

The conventional seismic isolation device has no space for replacing the seismic isolation device, so that it is necessary to replace the seismic isolation device by damaging a part of the substructure. However, according to the present invention, when the seismic isolation device is replaced, the non-shrinkable mortar layer 140 provided in the lower module 120 can be removed to secure a certain space, thereby replacing the seismic isolation device without damaging a part of the substructure 172 There are advantages to be able to.

The upper module 110, the lower module 120, and the seamed structural part 130 are integrally formed and installed at the time of constructing the isolation device, thereby simplifying the operation and improving the workability. When the isolation device is replaced, the isolation structure 130, the upper inner plate 112, and the lower inner plate 122 are integrally manufactured in advance, so that the isolation structure 130, the upper inner plate 112, There is an advantage that a work error occurring when the inner plate 122 is engaged can be reduced.

The cover module 150 of the present invention can protect the lower inner plate 122 and the non-shrinkable mortar layer 140 to prevent deformation of the shrink-proof mortar layer 140, It can be used as a form when forming.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, and many modifications may be made without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

100 ... seismic isolation device 110 ... upper module
111 ... upper plate 112 ... upper inner plate
113 ... upper horizontal leveling device 114 ... upper stud
120 ... lower module 121 ... lower plate
122 ... lower inner plate 123 ... lower horizontal leveling device
124 ... lower stud 130 ... facing structure
131 ... rubber plate 132 ... steel plate
133 ... Lead 140 ... Non-shrinkable mortar layer
141 ... Non-shrinkable mortar 142 ... Male thread
150 ... cover module 151 ... fixing portion
152 ... cover part 153 ... hinge
160 ... bolt 171 ... superstructure
172 ... Substructure 173 ... Hydraulic equipment
174 ... pedestal 180 ... flat jack
181 ... indentation hole
S100 ... whether or not to replace the insulation structure
S200 ... jacking step of superstructure
S300 ... No shrinkage mortar layer removal step of lower module
S400 ... Isolation structure, upper inner plate, lower inner plate replacement step
S500 ... No shrinkage mortar layer formation step

Claims (14)

1. An isolation device capable of transmitting a load of an upper structure to a lower structure and absorbing an external impact,
An upper module connected to the upper structure;
A lower module connected to the lower structure and having a shrinkage mortar layer;
And a surface structure installed between the upper module and the lower module and capable of absorbing an external impact,
The upper module includes:
An upper plate coupled to the upper structure and an upper inner plate disposed at a lower portion of the upper plate and connected to the face-centered structure to fix the face-centered structure to the upper module,
The sub-
A lower plate connected to the lower structure, and a lower inner plate disposed on the lower plate and connected to the face-centered structure to fix the face-centered structure to the lower module, wherein the non- A lower plate formed between the plate and the lower inner plate,
The sub-
And a cover module surrounding the periphery of the non-shrinkage mortar layer,
The cover module includes:
And a cover portion extending downward from the fixing portion and surrounding the periphery of the lower inner plate and the periphery of the non-shrinkable mortar layer,
Wherein the fixing part and the lid part are hinged to each other. delete delete delete The method according to claim 1,
Wherein the cover module comprises a plurality of separating plates. The method according to claim 1,
Wherein the upper module, the lower module, and the seismic isolation structure are integrally formed. The method according to claim 1,
Wherein the upper inner plate, the lower inner plate, and the seismic isolation structure are integrally formed for replacement. The method according to claim 1,
Wherein the seismic isolation structure comprises a rubber plate and an iron plate, and the rubber plate and the lead sheath inserted into the steel plate. A method of replacing an isolation device capable of absorbing an external impact by transmitting a load of an upper structure to a lower structure,
A planar structure capable of absorbing an external impact,
An upper module comprising an upper plate connected to the upper structure and an upper inner plate disposed at a lower portion of the upper plate and connected to the seamed structure to fix the seamed structure to the upper module,
A lower inner plate disposed at the upper portion of the lower plate and connected to the outer frame structure to fix the outer frame structure to the lower module, and a lower inner plate disposed between the lower plate and the lower inner plate In a seismic isolation device comprising a lower module consisting of a shrinkage free mortar layer,
Inspecting whether or not to replace the seamed structural part;
Jacking the upper structure considering a load of the isolation structure;
Removing the shrunk mortar layer of the lower module;
Replacing the base isolation structure, the upper inner plate, and the lower inner plate;
And injecting the non-shrinkage mortar to form the shrinkage mortar layer,
The sub-
And a cover module surrounding the periphery of the non-shrinkage mortar layer,
The step of removing the shrink-free mortar layer of the lower module may include removing the shrink-free mortar layer after removing the cover module,
The step of injecting the non-shrinkable mortar to form the non-shrinkable mortar layer may include joining the cover module and inserting a flat jack having a press-fit hole between the lower plate and the lower inner plate, Wherein the non-shrinkable mortar is injected through the non-shrinkable mortar. 10. The method of claim 9,
Wherein the seismic structure, the upper inner plate, and the lower inner plate are integrally formed and replaced with each other. delete delete 10. The method of claim 9,
The cover module includes:
And a cover portion extending downward from the fixing portion and surrounding the periphery of the lower inner plate and the periphery of the non-shrinkable mortar layer,
Wherein the fixing part and the lid part are hinged to each other. 14. The method of claim 13,
The step of removing the shrink-free mortar layer of the lower module may include removing the shrink-free mortar layer after removing the cover module,
Wherein the step of injecting the non-shrinkable mortar to form the shrink-proof mortar layer comprises: re-joining the cover module to open the cover portion of the cover module;
Wherein the shrinkable mortar is injected through the vertical tube by gravity using a vertical tube which is in communication with the open part of the lid part.

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