KR102198681B1 - Lifting jack using double lock and nut, and structure reinforcement method using the same - Google Patents

Abstract

The present invention relates to a lifting jack using a double lock and nut and a structure reinforcement method using the same, wherein the lifting jack can simply secure safety to efficiently reinforce an upper structure before and after a structure for reinforcing the upper structure is lifted. The lifting jack using a double lock and nut includes: a first lock and nut fastened and fixed to a screw part at a lower portion of an inner rim member lifted for initial setting for allowing the lifting jack to be in contact by lifting only the inner rim member of a hydraulic jack between the upper structure and a lower support part; and a second lock and nut fastened and fixed to a screw part at a lower portion of an outer rim member of the hydraulic jack lifted for lifting the inner rim member to which the first lock and nut initially set for lifting the upper structure is fixed.

Description

Impression jack using double lock and nut and structure reinforcement method using it {LIFTING JACK USING DOUBLE LOCK AND NUT, AND STRUCTURE REINFORCEMENT METHOD USING THE SAME}

The present invention relates to an impression jack using a double lock and nut and a structure reinforcement method using the same. More specifically, it relates to an impression jack using a double lock and nut capable of efficiently reinforcing the upper structure by simply securing safety before and after the structure for reinforcing the upper structure, and a structure reinforcement method using the same.

Figure 1a shows a configuration example of a conventional structure impression jack.

That is, the cylinder body 41 of the hydraulic jack 4 mounted on the upper surface of the lower structure 1 so that the ram member 42 can protrude upward is set, and a sliding hole 45 is at the upper end of the ram member 42 ) Is installed, and it can be seen that the upper structure (2) is supported and installed on the upper surface of the sliding hole (45).

Accordingly, when the hydraulic jack 4 is operated, the ram member 42 is raised, and the upper structure 2 supported by the sliding hole 45 is raised.

At this time, if the upper structure (2) is not in a fixed state but horizontally displaced from time to time, it will affect the safety of such a lifting operation. Therefore, the sliding hole 45 is raised from the top of the ram member 42 by such displacement. It plays a role of absorbing the displacement so that it is not affected by the safety of the product.

That is, the sliding hole 45 integrated with the upper structure 2 on the sliding pad on the upper surface of the ram member 42 slides due to displacement.

In addition, the safety nut 43 allows the ram member 42 to stably support the upper structure 2 by allowing it to move while being rotated up and down along the ram member 42, thereby fixing the rising height of the ram member. You can see that it is supposed to act as a nut.

Figure 1b shows another configuration example of the conventional structure impression jack.

That is, the support member 10 is installed on the upper surface of the slide plate 20, and the slide plate 20 is tilted by the second piston 44 installed on which the tilting member 30 is mounted,

The second piston can be raised or lowered by the first piston 42 accommodated inside the first cylinder tube 41 set to support the second piston 44 from below, but the second piston 44 It can be seen that the safety nut 45 is fastened to the outer circumferential surface of the first cylinder tube 41 so as to be fixed so as not to descend.

In addition, the lower portion of the first cylinder tube 41 has a cylindrical tube shape and a female thread is formed along the inner circumferential surface, and is screwed with the male thread of the height adjustment fixing guide part 61 to perform vertical movements. It can be seen that it includes a height adjustment unit 62.

In conclusion, the impression jack, which is a hydraulic jack used for raising structures in the prior art, can absorb the horizontal and rotational displacements of the upper structure such as sliding plates and tilting plates, while ensuring safety due to hydraulic loss occurring during the raising process. It can be seen that nuts are used, but the structure of the hydraulic jack (raising jack) is inevitably complicated to ensure safety, so there is a limit in which workability is deteriorated due to an increase in weight.

Korean Patent No. 10-1741762 (Name of invention: safety hydraulic jack for bridge hike, automatic control system for bridge hike, and bridge hike and reduction method, publication date: June 15, 2017) Korean Patent No. 10-2055925 (Name of invention: Seismic function bi-directional C.P.S jack used for seismic reinforcement of bridge bearings, and simultaneous raising and lowering of digital structures using the same, publication date: December 16, 2019) Korean Patent No. 10-1792464 (Name of invention: computer bridge raising device that can be controlled by wired or wirelessly and bridge raising method using the same, publication date: November 1, 2017)

Accordingly, the present invention uses a double lock and nut in order to be able to securely fix the impression jack in the process of raising the structure, and efficiently forms the rim member of the impression jack on the hydraulic jack in response to the function of the double lock and nut. This is a technical task to solve the provision of an impression jack using a double lock and nut that can raise a structure and a structure reinforcement method using the same.

In addition, the present invention uses a support plate having a fixed end, one-way, and two-way sliding plate function between the bottom of the structure and the rim member, so that it can absorb the moving displacement of the upper structure under various conditions. This is a technical task to solve the provision of an impression jack using a double lock and nut that can raise and lower a structure in response to the direction of the structure, and a structure reinforcement method using the same.

Impression jack using double lock and nut to achieve the above task

A primary lock and nut fastened to and fixed to the screw portion of the raised inner rim member for initial setting in contact with only the inner rim member of the hydraulic jack between the upper structure and the lower support portion; And a secondary lock and nut fastened to and fixed to the screw portion of the lower outer rim member of the hydraulic jack raised to raise the inner rim member to which the first lock and nut initially set to raise the upper structure is fixed. The rim member is located on the inside with respect to the cylinder central axis of the hydraulic jack, and the outer rim member is located on the outside of the inner rim member with respect to the cylinder central axis so as to rise and fall respectively by hydraulic pressure, operation of the hydraulic jack and lifting of the upper structure The first lock and nut is used to support the lower part of the inner rim member in the initial setting in which the impression jack using the double lock and nut is brought into contact with the upper surface of the upper structure by the inner rim member, and the second lock and nut is the inner rim member. It is used to support the lower part of the inner rim member and the outer rim member in the raised upper structure by using the outer rim member formed to enclose the structure, and the upper structure lifting operation is performed under the inner rim member and the primary lock and nut in the initial setting state. The supporting outer rim member is raised, but the diameter of the outer rim member is formed larger than the diameter of the inner rim member so as to support a large load effect according to the lifting of the upper structure.

Structure reinforcement method using an impression jack using a double lock and nut to achieve the above task,

(a) installing an impression jack using a double lock and nut on the lower support part located below the upper structure; (b) inserting the impression jack using the double lock and nut into the hydraulic jack between the upper structure and the lower support After making only the rim member to rise and contact, initial setting of fixing the first lock and nut to the lower part of the raised inner rim member to support the lower part of the inner rim member; And (c) fixing the first lock and nut After raising the outer rim member of the hydraulic jack together with the inner rim member, the second lock and nut is fixed to the lower part of the raised outer rim member to support the lower part of the inner and outer rim members; and , After the (c), the reinforcing work of the upper structure is made, and the lifting jack using the double lock and nut is raised for initial setting in contact with only the inner rim member of the hydraulic jack between the upper structure and the lower support. The first lock and nut fastened to and fixed to the screw portion of the lower part of the inner rim member; and the screw part of the lower part of the outer rim member of the hydraulic jack that is raised to raise the inner rim member to which the first lock and nut initially set to raise the upper structure is fixed. And a secondary lock and nut fastened and fixed to the hydraulic jack, wherein the inner rim member is located inside with respect to the cylinder central axis of the hydraulic jack, and the outer rim member is located outside the inner rim member with respect to the cylinder central axis. The first lock and nut is the inner rim at the initial setting in which the lifting jack using the double lock and nut is brought into contact with the upper surface of the upper structure by separating the operation of the hydraulic jack and the lifting of the upper structure. It is used to support the lower part of the member, and the secondary lock and nut is used to support the lower part of the inner rim member and the outer rim member in the raised upper structure by using the outer rim member formed to surround the inner rim member. In the initial setting state, the inner rim member and the outer rim member supported under the primary lock and nut are raised, but the diameter of the outer rim member is formed larger than the diameter of the inner rim member to support the large load effect due to the upper structure.Is done.

The present invention realizes the lifting of the rim member required for initial raising of the structure and the operation of the rim member required for the final raising of the structure within one hydraulic jack, thereby providing an impression jack using a double lock and nut with efficiency and safety, and a structure reinforcement method using the same. Is done.

In addition, by using the upper support plate that can maintain the orientation of the bridge support according to the upper structure in response to the direction of displacement caused by the load acting on the structure, external influence is minimized, and a double lock and nut that enables reinforcement work according to a faster structure impression. It is possible to provide the used impression jack and the structure reinforcement method using the same.

Figure 1a is a configuration example of a conventional structure impression jack
Figure 1b is another configuration example of the conventional structure impression jack,
Figures 2a and 2b is a perspective view of the configuration of the impression jack using a double lock and nut of the present invention,
3A, 3B and 3C are exemplary views of the upper support plate of the impression jack using the double lock and nut of the present invention,
4A and 4B are flowcharts illustrating a reinforcement industry using an impression jack using a double lock and nut of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

[Impression jack 100 using a double lock and nut of the present invention]

Figures 2a and 2b is a perspective view of the configuration of the impression jack 100 using the double lock and nut of the present invention, Figures 3a, 3b and 3c are the upper acupressure plate 160 of the impression jack 100 using the double lock and nut of the present invention ) Shows an exemplary diagram.

The impression jack 100 using the double lock and nut is as shown in Figures 2a and 2b,

The first lock and nut 120 is applied to the lower support of the inner rim member 140 in the initial setting to contact the upper surface of the upper structure 200 with the impression jack 100 using the double lock and nut by the inner rim member 140. Use,

The secondary lock and nut 130 is the inner rim member 140 and the outer rim member 150 in the raised upper structure 200 using the outer rim member 150 formed to surround the inner rim member 140. It is used for lower support.

Accordingly, by using the first and second lock and nut (120, 130), it is possible to raise the upper structure 200 stably and quickly by the efficient lifting structure of the hydraulic jack 110, and the first lock and nut 120 and the second lock and nut (130) It is possible to be slim while rotating fastened to the inner rim member 140 and the outer rim member 150, it is possible to use the hydraulic jack 110 more effectively. Accordingly, the primary and secondary lock-and-nuts 120 and 130 according to the above action are referred to as double lock-and-nuts in the present invention.

In addition, since the inner rim member 140 and the outer rim member 150 are formed inside one hydraulic jack 110, the volume is optimized so that the self-weight is not large, so that workability can be secured.

Accordingly, the impression jack 100 using the double lock and nut is a hydraulic jack 110, a first lock and nut 120, a second lock and nut 130, an inner rim member 140, as shown in FIGS. 2A and 2B. It includes a rim member 150, an upper pressure plate 160.

First, the hydraulic jack 110 includes a cylindrical cylinder 111 capable of sequentially raising the inner rim member 140 and the outer rim member 150 by hydraulic pressure, as shown in FIGS. 2A and 2B. It can be seen that it is seated on the upper structure 200 including the girder bridge, etc.) and the lower support part 300 including the bridge substructure (alternate, pier).

That is, by the supply of hydraulic pressure by a hydraulic system not shown, the piston in the inside of the cylindrical cylinder 111 causes the inner rim member 140 and the outer rim member 150 to rise and fall sequentially to the upper surface of the cylinder 111. It will use what is formed to be able to.

Accordingly, a piston capable of raising and lowering the internal rim member 140 and a piston capable of raising and lowering the external rim member 150 are integrally built into the hydraulic jack 110, and although not shown, respectively, they can supply hydraulic pressure. The hydraulic line is connected.

Next, as shown in FIGS. 2A and 2B, the primary lock-and-nut 120 rises and descends upward and downward of the cylinder 111 by a piston inside the hydraulic jack 110, and an inner rim member having a threaded portion 141 formed on the outer circumferential surface thereof. It is a nut member that is fastened to 140 so as to be rotatable.

When the first lock and nut 120 is initially set so that the upper acupressure plate 160 installed on the upper surface of the inner rim member 140 is in contact with the lower surface of the upper structure 200 while moving along the outer circumferential surface of the inner rim member 140 It has a function for stably fixing the raised inner rim member 140.

Accordingly, the first lock and nut 120 is installed to support the lower portion of the raised inner rim member 140 by lowering to the upper surface of the second lock and nut 130 after being moved upward by the rise of the inner rim member 140 .

Next, the secondary lock-and-nut 130 is formed so that the inner rim member 140 is accommodated and wrapped inside, as shown in FIGS. 2A and 2B, and is moved upward of the cylinder 111 by the piston inside the hydraulic jack 110. It is a nut member that is fastened so as to be rotatable to the outer rim member 150 which is raised and lowered and has a screw portion 151 formed on the outer circumferential surface thereof.

This secondary lock-and-nut 130 moves along the outer circumferential surface of the outer rim member 150 and after the initial setting discussed above, it has a function for stably fixing the inner and outer rim members 140 and 150 in a state in which the upper structure is raised. Will have.

Accordingly, the secondary lock and nut 130 moves upward by the rise of the external rim member 150 and then descends to the upper surface of the cylinder 111 of the hydraulic jack 110 to support the lower portion of the raised external rim member 150 It is installed to do.

In addition, after the secondary lock and nut 130 releases the lower support state, the upper structure 200 can be lowered.

Next, the inner rim member 140 is a piston that is raised and lowered for initial setting of the upper structure 200 by the piston of the hydraulic jack 110, as shown in FIGS. 2A and 2B, and is inside the outer rim member 150. It is installed so as to be accommodated, and a screw portion 141 is formed on the outer circumferential surface, so that the primary lock and nut 120 is a cylindrical member that is fastened to the outer circumferential surface.

By separating the inner rim member 140 and the outer rim member 150 from each other, the operation of the hydraulic jack 110 for initial setting and the work of raising the upper structure 200 are divided, so that load adjustment and stable work on the hydraulic jack 110 are possible. Will do.

That is, in the initial setting, since the inner rim member 140 is raised so that the upper acupressure plate 160 is in contact with the bottom surface of the upper structure 200, there is no other large load action, so that the inner rim member 140 is rotated and fastened to the outer peripheral surface Car lock and nut 120 to support the lower portion of the inner rim member 140,

The upper structure 200 is raised in the initial setting state by raising the inner rim member 140 and the outer rim member 150 supported under the first lock and nut 120, but the diameter of the outer rim member 150 is internal It is formed to be larger than the diameter of the rim member 140 so as to stably support a large load action according to the upper structure 200 raising.

Next, the outer rim member 150 supports the inner rim member 140 and the primary lock and nut 120 in the initial setting state from below, as shown in FIGS. 2A and 2B, for raising the upper structure 200 It is a member that is raised and lowered by the piston of the hydraulic jack 110.

While surrounding the inner rim member 140 inside the hydraulic jack 110, it is a cylindrical member that is also located inside the hydraulic jack 110 and extends upward by hydraulic pressure.

Accordingly, the inner rim member 140 is located on the inside with respect to the central axis of the cylinder 111, and the outer rim member 150 is located on the outside with respect to the central axis of the cylinder 111 to the outside of the inner rim member 140, It can be seen that each rises and falls.

Next, the upper acupressure plate 160 is installed on the upper surface of the inner rim member 140, as shown in FIGS. 2A and 2B, and is a plate member having a predetermined thickness so as to contact the lower surface of the upper structure 200. ) Serves as a fixed end, one-way, and two-way support plate according to the horizontal displacement.

That is, the upper structure 200 is a concrete structure, and a displacement occurs while horizontally moving by expansion and contraction according to a load and temperature, and a conventional sliding plate is used to absorb this displacement. However, since this displacement can occur in various directions,

The upper acupressure plate 160 for the fixed end is to maintain the directionality of the bridge support according to the upper structure according to this horizontal displacement, as shown in FIG. 3A, and is fixed with the upper support plate 162 at the fixed end as a square or circular plate according to FIG. 3A. However, it has been found that the lower support plate 163 is formed so as to be in contact with the upper and lower portions, and a friction resistance plate 161 formed on the upper surface of the fixed end upper support plate 162 is further formed at a portion in contact with the upper structure 200. I can.

Next, as shown in FIG. 3A, the one-way upper acupressure plate 160 absorbs it assuming that the upper structure 200 moves through a horizontal displacement in one direction, and also maintains the directionality of the bridge support, as shown in FIG. 3A. According to this, it can be seen that the one-way upper support plate 162 and the one-direction lower support plate 163 are formed to be in contact with each other up and down so that they can move relatively by the male and female coupling portions 164 in the form of a square or circular plate.

Accordingly, it can be seen that the frictional resistance plate 161 is formed on the upper surface of the upper support plate 162 in one direction, and the male and female coupling part 164 is formed in the form of a female coupling groove on the lower surface of the upper support plate 162 in one direction.

In addition, it can be seen that a sliding plate 165 for relative movement is formed on the upper surface of the lower support plate 163 in one direction, and the male and female coupling part 164 is formed in the shape of a male coupling on the upper surface of the lower support plate 163 in one direction. In particular, it can be seen that a copper plate is attached to the side of the male and female coupling portion 164 in the form of a male coupling so as to reduce the frictional resistance of the male and female coupling portion 164 (??).

Next, as shown in FIG. 3C, the bidirectional upper acupressure plate 160 absorbs the upper structure 200 in a direction orthogonal to one direction by moving through a horizontal displacement. As for maintaining it as it is, according to FIG. 3C, in the form of a square or circular plate, the bidirectional upper support plate 167 and the bidirectional lower support plate 168 are formed to be in contact with each other up and down so that they can be moved relatively by the displacement control unit 166 You can see that there is.

This displacement control unit 166 forms a square, circular plate-shaped displacement control groove of the bidirectional upper support plate 167, and is inserted into the displacement control groove so that the portions in contact with the bidirectional lower support plate 168 are spaced apart from each other. The two-way upper support plate 167 and the two-way lower support plate 168 are made to be able to move relative to each other within a limited range.

Accordingly, it can be seen that a friction resistance plate 161 and a sliding plate 165 are also formed on the upper surfaces of the bidirectional upper support plate 167 and the bidirectional lower support plate 168.

[Structure reinforcement method using the impression jack 100 using the double lock and nut of the present invention]

Figures 4a and 4b shows a flow chart of the reinforcement industry using the impression jack 100 using a double lock and nut of the present invention.

The structure reinforcement method is for a method of more stably raising the upper structure 200 including the upper bridge structure using the impression jack 100 using the double lock and nut discussed above, and the double lock and nut is adjusted by initial setting. After stably setting the used impression jack 100, a method of raising and lowering the upper structure 200 is used.

Accordingly, as shown in FIG. 4A, the placement, initial setting, and initial setting support of the impression jack 100 using a double lock and nut between the upper structure 200 and the lower support part 300 are performed.

That is, as shown in Figure 4a, the impression jack 100 using the double lock and nut is the first lock and nut 120 and the second lock and nut 130 on the hydraulic jack 110, the inner rim member 140, the outer rim It can be seen that it is fastened to the outer circumferential surface of the member 150, and the upper acupressure plate 160 is located on the upper surface of the inner rim member 140 and is located under the bottom surface of the upper structure 200, which is double lock and In order to prepare for the operation of the impression jack 100 using a nut, it may be referred to as a step of arranging the impression jack 100 using a double lock and nut on the lower support part 300.

Next, as shown in FIG. 4A, the inner rim member 140 of the hydraulic jack 110 is operated in the step of arranging the impression jack 100, but according to the horizontal displacement of the upper structure 200, the fixed end, one-way, and two-way use The upper acupressure plate 160 is in contact with the bottom surface of the upper structure 200 to form an initial setting step.

Accordingly, while the inner rim member 140 and the primary lock and nut 120 fastened to the screw portion 141 of the inner rim member 140 are raised together, the upper acupressure plate installed on the upper surface of the inner rim member 140 ( It can be seen that 160) comes into contact with the bottom surface of the upper structure 200.

Next, as shown in FIG. 4A, the first lock and nut 120 raised together with the inner rim member 140 is moved downward to support the lower part of the inner rim member 140 while being positioned on the upper surface of the first lock and nut 120 It can be seen that the initial setting support stage will go through.

Next, as shown in FIG. 4B, in the initial setting support step of the impression jack 100 using a double lock and nut, raise the upper structure 200, support the raised upper structure 200, and the impression jack 100 using a double lock and nut. It is completed by the lowering of the upper structure 200 by lowering.

Thus, as shown in FIG. 4B, the initial setting support step of the impression jack 100 using a double lock and nut is performed by placing the impression jack 100 using a double lock and nut on the bottom of the upper structure 200 before raising the upper structure 200. Since it is a step, the upper structure 200 is raised by operating the outer rim member 150 of the cylinder 111 constituting the hydraulic jack 110.

Accordingly, the outer rim member 150 by the impression of the outer rim member 150, the secondary lock and nut 130 fastened to the screw portion of the outer rim member 150, the primary lock and nut on the upper surface of the secondary lock and nut 130 It can be seen that 120, the inner rim member 140, and the upper acupressure plate 160 are raised upward together with the upper structure 200.

Next, as shown in FIG. 4B, the secondary lock-and-nut 130 fastened to the screw portion of the outer rim member 150 is rotated to the upper surface of the cylinder 111 so that it descends so as to support the lower portion of the outer rim member 150. Thus, the stability of the raised upper structure 200 is secured.

The reinforcing work necessary in the raising state of the upper structure 200 is separately performed, and when the upper structure 200 is a bridge structure, it may be a replacement of the bridge support.

Accordingly, when the final reinforcing work is completed, the impression jack 100 using a double lock and nut is disassembled. Accordingly, first, the secondary lock and nut 130 fastened to the screw portion of the outer rim member 150 set to the upper surface of the cylinder 111 is moved upward, and then the hydraulic jack is lowered so that the outer rim member 150 is lowered. The impression jack 100 using a double lock and nut can be separated from the structure 200.

Accordingly, the impression jack 100 using the double lock and nut of the present invention operates the first and second lock and nuts 120 and 130 sequentially by sequentially operating the inner and outer rim members 140 and 150 to install the initial setting and the upper structure lifting operation in order. It can be seen that more stable and quick reinforcing work of the upper structure 200 can be performed.

In addition, the upper acupressure plate 160 is selectively installed for a fixed end type, one-way type, and a two-way type, thereby maintaining the directionality of the bridge support according to the horizontal displacement of the upper structure 200, and the impression jack 100 using a double lock and nut. Becomes available.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains will be able to understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative and non-limiting in all respects. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention. do.

100: Impression jack using double lock and nut
110: hydraulic jack 111: cylinder
120: primary lock and nut 130: secondary lock and nut
140: inner rim member 141: threaded portion
150: outer rim member 151: threaded portion
160: upper acupressure plate 161: friction resistance plate
162: upper support plate 163: lower support plate
164: male and female coupling portion 165: sliding plate
166: displacement control unit 167: bi-directional upper support plate
168: bidirectional lower support plate 200: upper structure
300: lower support

Claims (10)

Between the upper structure 200 and the lower support part 300, only the inner rim member 140 of the hydraulic jack 110 rises and is fastened to the screw part 141 under the raised inner rim member 140 for initial setting. Fixed primary lock and nut 120; And
The screw portion 151 under the outer rim member 150 of the hydraulic jack 110 raised to raise the inner rim member 140 to which the primary lock and nut 120 initially set to raise the upper structure 200 is fixed. ) Fastened to and fixed to the secondary lock and nut 130; including,
The inner rim member 140 is located inside with respect to the central axis of the cylinder 111 of the hydraulic jack 110, and the outer rim member 150 is located outside the inner rim member 140 with respect to the central axis of the cylinder 111 So, each rise and fall by hydraulic pressure,
By dividing the operation of the hydraulic jack 110 and the work of raising the upper structure 200,
The first lock and nut 120 is applied to the lower support of the inner rim member 140 in the initial setting to contact the upper surface of the upper structure 200 with the impression jack 100 using the double lock and nut by the inner rim member 140. Use,
The secondary lock and nut 130 is the inner rim member 140 and the outer rim member 150 in the raised upper structure 200 using the outer rim member 150 formed to surround the inner rim member 140. By using it for lower support,
The upper structure 200 is raised in the initial setting state by raising the inner rim member 140 and the outer rim member 150 supported under the first lock and nut 120, but the diameter of the outer rim member 150 is internal An impression jack using a double lock and nut that is formed larger than the diameter of the rim member 140 to support a large load action according to the upper structure 200 raising. The method of claim 1,
An upper acupressure plate 160 is further installed on the upper surface of the initially set inner rim member 140,
An impression jack using a double lock and nut that allows the upper structure 200 to be raised and lowered by the hydraulic jack 110 by maintaining the directionality of the upper structure 200 including the bridge support. The method of claim 2,
The upper acupressure plate 160 is an upper acupressure plate for a fixed end,
In order to maintain the directionality of the bridge support according to the upper structure according to the horizontal displacement, the fixed end upper support plate 162 and the fixed end lower support plate 163 in the form of a square or circular plate are formed by contacting each other up and down, and the fixed end upper support plate (162) An impression jack using a double lock and nut using that the friction resistance plate 161 is further formed on the upper surface. The method of claim 2,
The upper acupressure plate 160 is an upper acupressure plate for one direction,
In order to maintain the directionality of the bridge bearing according to the upper structure according to the horizontal displacement, the one-way upper support plate 162 and the one-way lower support plate 163 in the form of a square or circular plate can be moved relatively by the male and female coupling part 164 to each other. So that it is formed to be in contact with the top and bottom
The male and female coupling portion 164 includes a male and female coupling portion 164 in the form of a male coupling port on the upper surface of the one-way lower support plate 163 and a male and female coupling portion 164 in the form of a female coupling groove on the bottom surface of the one-way upper support plate 162, and ,
A friction resistance plate 161 is provided on the upper surface of the one-way upper support plate 162, a sliding plate 165 for relative movement is provided on the upper surface of the one-way lower support plate 163, and a copper plate is provided on the side of the male and female coupling part 164 in the form of a male coupling. Impression jack using a double lock and nut to further form to reduce the frictional resistance of the male and female coupling portion 164. The method of claim 2,
The upper acupressure plate 160 is an upper acupressure plate for both directions,
In order to maintain the directionality of the bridge bearing according to the upper structure according to the horizontal displacement, the bidirectional upper support plate 167 and the bidirectional lower support plate 168 in the form of a square or circular plate can be moved relative to each other by the displacement control unit 166. It is formed to be in contact with each other up and down,
The displacement control unit 166 forms a square, circular plate-shaped displacement control groove of the two-way upper support plate 167, and is inserted into the displacement control groove so that the portions in contact with the two-way lower support plate 168 are spaced apart from each other, In the two-way upper support plate 167 and the two-way lower support plate 168 is an impression jack using a double lock and nut to allow relative movement within a limited range of each other. (a) installing an impression jack 100 using a double lock and nut on the lower support part 300 located below the upper structure 200;
(b) After making the impression jack 100 using the double lock and nut rise and contact only the inner rim member 140 of the hydraulic jack 110 between the upper structure 200 and the lower support part 300, the first Initial setting of fixing the lock and nut 120 to the lower portion of the elevated inner rim member 140 to support the lower portion of the inner rim member 140; And
(c) After raising the outer rim member 150 of the hydraulic jack 110 together with the inner rim member 140 to which the first lock and nut 120 is fixed, the outer rim with the secondary lock and nut 130 raised Including; step of raising the upper structure 200 so as to be fixed to the lower part of the member 150 to support the lower part of the inner and outer rim members 140 and 150; and, reinforcing the upper structure 200 after the (c) This is done,
Impression jack 100 using the double lock and nut,
Between the upper structure 200 and the lower support part 300, only the inner rim member 140 of the hydraulic jack 110 rises and is fastened to the screw part 141 under the raised inner rim member 140 for initial setting. Fixed primary lock and nut 120; And
The screw portion 151 under the outer rim member 150 of the hydraulic jack 110 raised to raise the inner rim member 140 to which the primary lock and nut 120 initially set to raise the upper structure 200 is fixed. ) Fastened to and fixed to the secondary lock and nut 130; including,
The inner rim member 140 is located inside with respect to the central axis of the cylinder 111 of the hydraulic jack 110, and the outer rim member 150 is located outside the inner rim member 140 with respect to the central axis of the cylinder 111 So, each rise and fall by hydraulic pressure,
By dividing the operation of the hydraulic jack 110 and the work of raising the upper structure 200,
The first lock and nut 120 is applied to the lower support of the inner rim member 140 in the initial setting to contact the upper surface of the upper structure 200 with the impression jack 100 using the double lock and nut by the inner rim member 140. Use,
The secondary lock and nut 130 is the inner rim member 140 and the outer rim member 150 in the raised upper structure 200 using the outer rim member 150 formed to surround the inner rim member 140. By using it for lower support,
The upper structure 200 is raised in the initial setting state by raising the inner rim member 140 and the outer rim member 150 supported under the primary lock and nut 120, but the diameter of the outer rim member 150 is internal A structure reinforcement method using an impression jack using a double lock and nut that is formed larger than the diameter of the rim member 140 to support a large load action according to the upper structure 200 raising.



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