JPH07189491A - Working-stage pushing-up device used for constructing multistoried structure - Google Patents

Abstract

PURPOSE:To set the load point of a working stage at the time of pushing-up operation so as to be loaded on a body in an assembling process with excellent balance in a pushing-up device, in which the working stage, on which a lifting equipment such as materials is loaded, is mounted around a previously assembled body, the erection operation of the body and the pushing-up operation of the working stage are repeated alternately and a multistoried building, etc., are constructed, for the working stage. CONSTITUTION:A working stage 2 consists of working stage stoppers 3 mounted and borne onto the outer circumference of a central section body 1, a guide column 5 with engaging brackets 5a and jacks 6. The working stage stoppers 3 are installed and borne at both ends of the post members 1a of the central section body 1 by two stopper members, and the engaging brackets 5a are also set up and borne similarly at both sides of the same post members 1a of the central section body 1 by the two engaging brackets 5a, 5a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction of a work stage used in a construction work of a super high-rise structure called a jack-up construction method (also called a lift-up construction method or a T-UP construction method), for example, a super high-rise building. It concerns a lifting device.

[0002]

2. Description of the Related Art A jack-up method is known as a construction technique that can cope with higher-rise building structures. The features of this jack-up method are shown in FIGS. 12 (A), (B) and (C).
It is composed of the steps shown in FIG. FIG. 12 (A) A structure to be constructed, that is, a steel frame structure portion 100 (hereinafter, referred to as a central body 100) that constitutes a central portion of the body is assembled at an arbitrary height in advance. Then, on the outer periphery of the central body 100 assembled in advance, the outer peripheral steel structure portion 101 corresponding to the outer periphery of the body (this outer peripheral steel structure portion 10
1 is used as a scaffold for assembling work, so that it will be referred to as a work stage 101 hereinafter) via a plurality of work stage stoppers 102. FIG. 12B shows the outer periphery of the central body 100. And the working stage 10
A plurality of raising devices 103 each including a guide column 104 having a locking bracket 104a at its upper end and a jack 105 are provided between the raising device 103 and the inner circumference of the first device. That is, the locking bracket 104a at the upper end of the guide column 104 of each lifting device 103 is supported by the horizontal beam member on the side of the central body 100, and the lifting equipment is mounted on the work stage 101. (Not shown), using this lifting equipment, suspend materials such as a pillar member and a beam member on the central body 100, and a predetermined height (when the structure is a building,
12C, when the building for the first floor is completed, the guide pillar 104 of the lifting device 103 is raised, that is, the guide pillar 104. Is raised by the jack 105, and the locking bracket 104a at the upper end thereof is supported on the top end horizontal beam member 100b of the central structure 100 after the above-mentioned construction, and the work stage stopper 102 of FIG. The supporting structure for the central structure 100 is released, and the work stage 101 is moved to the central structure 1.
00, the step of raising the work stage 101 itself by one floor, and re-supporting the raised work stage 101 itself to the side of the central body 100 via the work stage stopper 102, and the steps (A), (B), (C) below. ) Repeating each work process of (D),
It is characterized by constructing a steel structure having a desired height.

By the way, as shown in FIG. 12A, a work stage stopper 102 for supporting and fixing the work stage 101 on the side of the central body 100 is provided from the side of the upper horizontal beam member 101a of the work stage 101. The horizontal beam member 100a of the central frame 100 is extended and supported. That is, the plurality of work stage stoppers 102 are arranged inside the work stage 101, and each work stage stopper 102 is projected onto the horizontal beam member 100a of the center body 100 so that the work stage 101 can be moved to the center body. It is configured to be fixed to the outer periphery of 101 by a frame.

Further, as described above, the lifting device 103 is constituted by a combination of the guide pillar 104 having the locking bracket 104a at the upper end and the jack 105. Further, the configuration and operating procedure of this point will be specifically described with reference to FIGS. 13 and 14. First, the guide column 104 is made of elongated rectangular pipe-shaped steel having a C-shaped or C-shaped cross-section, The upper end is equipped with a locking bracket 104a, and the guide pillar 1
04 itself has a multi-stage locking hole 1 with a constant pitch.
04b, 104b ... are provided.

On the other hand, the jack 105 has lock pins 105a and 105b that horizontally move in and out, respectively, at an upper end portion and a lower end portion, that is, at an end portion on a cylinder side and a rod side.
The guide pin 104 has locking holes 104b, 104b ... And a lock pin 105a and 105b that can be locked.

When the work stage 101 is to be raised, the guide column 104 of the raising device 103 is first raised using the jack 105, and the locking bracket 104a at the upper end is provided at the top horizontal beam on the side of the central body 100. The member 100a is replaced and supported. Next, the same jack 105 is used to raise the work stage 101 along the central body 100. That is,
The work stage 101 is lifted by alternately repeating two processes, a process of raising only the guide pillar 104 by the jack 105 and a process of pushing up the work stage 101 itself along the guide pillar 104 raised next. It was done.

The procedure of the raising work in this respect will be specifically described with reference to the drawings. First, when raising only the guide column 104 of the raising device 103,
As shown in FIG. 13, the head of the jack 105 is integrally connected and fixed to the lower end of the horizontal beam 101a of the work stage 101 with a connecting pin (not shown). Then, the jack 105 extends the stroke as much as possible,
The lock pin 105b on the lower end side is locked in the locking hole 104b of the guide column 104 as shown in FIG.

In this state, the jack 105 is fully compressed. Then, since the head of the jack 105 is fixed to the work stage 101 side, the lower end of the jack 105 is relatively pulled up. As a result, the guide pillar 104 is raised by one stroke. FIG. 13 shows the state. Guide pillar 10
When one stroke of 4 is finished, as shown in FIG. 13, the lock pin 10 on the upper end side of the jack 105 is
5a is locked in the locking hole 104b of the guide pillar 104. Then, the lock pin 105b on the lower end side is released from the locking hole 104b, and this time, the jack 1
Extend 05. That is, push down the rod. FIG.
Indicates the state. In this state, the lock pin 105b on the lower end side of the jack 105 is locked to the guide column 104 side, and the lock pin 105a on the upper end side is the guide column 1
Release from 04. Then, the jack 105 is the same as that shown in FIG.
It becomes the state of 3.

Therefore, by repeating the operation of FIG. 13, the guide pillar 104 can be raised to a predetermined height (h). In other words, the guide pole 1
You can raise 04. Therefore, the guide pillar 104
12C is pushed up to a height level equivalent to the first floor which is built on the central structure 100 shown in FIG. 12C, and the locking bracket 104a provided at the upper end of the guide pillar 104 is moved to the center. The top end horizontal beam member 100a on the side of the building frame 100 is suspended and supported. By the way, in the raising device 103 shown in FIG. 13, in order to raise only the guide pillar 104 by the amount equivalent to the first floor (about 4 m),
It is designed so that it can be raised to that level by repeating the cycle of 5 times.

When the work for raising the guide column 104 and the work for supporting the upper end of the guide column 104 on the side of the central frame 100 are completed, the work stage 101 is then raised.

FIG. 14 is an operation diagram of the jack 105 during the raising work. In this case, first, the pedestal fixing of the work stage 101 itself to the central body 100 side is released. That is, as shown in FIG. 12C, the work stage stopper 102 is released from the side of the horizontal beam 100a of the central frame 100. Then, the work stage 101 is supported by the head of the jack 105 assembled to the guide pillar 104, and
It is supported on the outer periphery of the central body 100 through the locking bracket 104a at the upper end of 04.

Therefore, as in the case of raising the guide pole 104, the jack 105 is expanded and contracted, and the upper and lower lock pins 105a and 105b of the jack 105 are alternately switched to the locking holes 104b on the guide pole 104 side and locked. Then, the jack 105 itself rises along the guide pillar 104. If the jack 105 itself rises along the guide pillar 104, the work stage 101 also rises accordingly. Because jack 10
Since the work stage 101 is loaded on the head of 5,
The work stage 101 is pushed up with the rise.

Therefore, as in the case of raising the guide pillar 104, by repeating the operation of FIG. 14 five times, the work stage 101 itself can be raised by one floor. When the work of raising the work stage 101 is completed, the work stage 101 is moved to the center frame 10
The 0-side is supported again via the work stage stopper 102. In this state diagram 12 (D), the work stage 1
Using the hoisting and transporting equipment mounted on 01, the next-stage steel frame part is assembled on the central structure 100. Less than,
If the building of the central frame 100 and the raising work of the work stage 101 are alternately repeated, the assembling and construction of a high-rise structure having a desired height can be efficiently developed.

FIG. 15 is a plan view of FIG. 12 (B) seen from above, showing a fulcrum of the work stage 101 around the central body 100, that is, a position where the work stage stopper 102 is arranged and a lifting device 103. It shows the deployment position. As shown in the figure, the supporting position of the work stage 101 with respect to the center frame 100, that is, the setting position of the work stage stopper 102, and the center frame 100 of the locking bracket 104a at the upper end of the guide column 104 in the lifting device 103. The frame positions with respect to the surroundings are configured so that they are shifted from each other in plan view. That is, as shown in FIG. 15, a structure in which the frame position of the work stage 101 and the frame position of the guide column 104 in the lifting device 103 are set for every other column member 100b on the outer periphery of the central body 100. Has become.

[0015]

By the way, the load of the work stage 101 in the construction process is the total load including the weight of the lifting equipment mounted on the work stage stopper 102 or the upper end of the guide pillar 104. Central body 10 during the assembly process via the stop bracket 104a
It is loaded on the 0 side. Moreover, the load weight is
When the work stage 101 is supported on the central body 100 side, and when the work stage 101 is raised, the guide pillar 104 of the lifting device 103 is raised, and it is supported on the central body 100 side. As described above, when the work stage 101 itself is lifted up and when the work stage 101 itself is lifted, the load positions are increased because the load positions are increased. Further, the load weight acts on the central body 100 as a moving load.

As a result, the central body 100 being assembled
There is a possibility that a change in stress and a change in strain amount due to load movement may be brought to the steel structure portion constituting the above, and the assembly accuracy of the central body 100 may be adversely affected. Therefore, conventionally, at all load points, in order to eliminate the influence of the load movement, it was necessary to reinforce the central body 100 side with members. The present invention has been developed with the object of solving the above problems and providing a work stage lifting device aiming to improve the efficiency and economical efficiency in the assembly work by minimizing the reinforcing material and the like. Was done.

[0017]

As a means for achieving the above object, the present invention relates to a work stage stopper for supporting a work stage around a central structure in a construction process, and a work stage along the central structure. The lifting device for jack-up is configured as follows, and is used as a working stage lifting device.

First, the work stage stopper for supporting the work stage around the central frame is a member constituting the work stage. Specifically, two stopper members are horizontally arranged from the upper or lower horizontal beam member side. In addition, it is configured so that it can be overhanged toward the side of the central body. That is, the two stopper members are used so as to support the strut member that constitutes the central frame, that is, to support the strut member on both sides of the strut member.

The lifting device was constructed by combining a guide column having two locking brackets at its upper end and two jacks in the following manner. First, the guide pillar having the two locking brackets has a structure in which the two locking brackets are provided so as to be able to horizontally project from the upper end portion of the guide pillar with a space between the pillar members. That is, the support member is supported on both sides. Further, the guide column itself has a multi-stage locking hole with a constant pitch. In other words, the structure is such that the same support member of the central frame supporting the work stage can be supported by the horizontal beam member in a manner of sandwiching it.

Next, each of the two jacks has a structure in which an upper end portion and a lower end portion are provided with lock pins which can be engaged with and disengaged from the engaging holes of the guide columns. The jacks are arranged in parallel on both sides of the guide pillar, and the heads of the jacks can be connected to the lower surface of the horizontal beam member forming the work stage via connecting pins.

[0021]

Since the lifting device for the working stage according to the present invention is constructed as described above, the fulcrum point of the working stage with respect to the central body in the assembly process, that is, the supporting point of the working stage stopper with respect to the central body side. It is now possible to set the frame of the locking bracket at the upper end of the guide column in the lifting device on both sides of the same column member that constitutes the central frame. That is, when the assembly work of the central structure is performed using the work stage, and the load load points at the time of raising the work stage are set on both sides of the same strut member that constitutes the central structure, In the process of raising the work stage as in the past, the load points on the central structure were not dispersed in a plane, and the load movement was suppressed, and the changes in stress and strain of the central structure were suppressed. .

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction and operation of the work stage raising device according to the present invention will be described in detail with reference to the embodiments shown in the drawings. It should be noted that the embodiment will be described by taking a case where it is applied to the assembly and construction of a high-rise building as an example. Figure 1
(A), (B) and (C) show a state in which the device of the present invention is mounted between the central body 1 and the work stage 2 in the process of assembling, and (A) is a front view and (B). Is a side view,
(C) is a plan view. First, a work stage stopper 3 for supporting the work stage 2 on the side of the central frame 1
Is located on or near the lower chord horizontal beam member 2b constituting the work stage 2 as shown in FIG.
a is installed (may be installed on the upper horizontal beam member 2a or in the vicinity thereof), and the two stopper members 3 (3) are pushed out toward the central body 1 side by the operation cylinder 3a, and the central body 1 is pushed. The horizontal beam members 1b (1b) on both the left and right sides of the support column member 1a constituting the frame 1 are supported. That is, the strut member 1a is configured to be supported and fixed by being sandwiched by the two stopper members 3 (3).

The lifting device 4 is, as explained above,
A guide column 5 having two locking brackets 5a (5a) and two jacks 6 and 6 are provided at the upper end. First, as shown in FIGS. 1 (A), 1 (B), and 1 (C), the guide column 5 is equipped with the two locking brackets 5a and 5a at the upper end thereof, which is attached to the central body 1 The upper horizontal beam member 1b on the side, that is, the upper horizontal beam member 1b is fixed to the frame. That is, the two retaining brackets 5a and 5a are used to support both sides of the support member, and the horizontal beam members 1b and 1b on both sides of the same support member 1a of the central body 1 on which the working stage 2 is supported. It was configured to support. Then guide pillar 5
As shown in FIG. 1B, the structure itself is provided with locking holes 5b, 5b, ... With a constant pitch. Reference numeral 5c is a guide roller provided at the lower end portion of the guide column 5 to ensure that the guide column 5 smoothly rises along the column member 1a of the central body 1 when the guide column 5 itself is raised. It is for.

Next, the two jacks 6 and 6 are shown in FIG.
As shown in (A), a lock pin 7 that engages with the locking holes 5b, 5b, ... Provided in the guide column 5 at the upper end and the lower end, that is, the end on the cylinder side and the end on the rod side, respectively.
The structure is equipped with 7 and 7. In the embodiment, as shown in FIG. 1 (A), lock boxes 8 and 8 incorporating the lock pins 7 and 7 are provided at the upper and lower ends of the jacks 6 and 6, respectively. Although the detailed structure is not shown, the lock pins 8 and 7 are operated by incorporating the operation cylinder that constitutes the jack 6 (6) into the lock box 8 and 8 and operating the operation cylinder. Locking hole 5 provided in the guide pillar 5
b, 5b, ... are equipped with a structure that can be engaged and disengaged as appropriate.

Further, as shown in FIG. 1 (B), the heads of the jacks 6 and 6 project the working stage loading member 2c from the lower chord horizontal beam member 2b of the working stage 2 toward the central body 1 side, In FIG. 1B, the structure is such that it is projected to the right side and is integrally connected to the lower surface of the projecting work stage loading member 2c, which is not shown in the drawing, using a connecting pin.

As described above, according to the present invention, the work stage stopper 3 for supporting the work stage 2 itself on the side of the central body 1 and the lifting device 4 for raising the work stage 2 itself along the central body 1 are provided. Since the locking bracket 5a (5a) at the upper end of the guide column in the above is configured to be supported by the same support member 1a on the side of the central body 1,
Even when the working stage 2 is supported on the side of the central structure 1 and the upper floor of the central structure 1 is assembled using it as a scaffold, or when the working stage 2 is raised using the jack-up device 4, The total load is applied to the side of the central body 1 via the same support member 1a. That is, the number of load points for the central body 1 is suppressed to a minimum, and
The heavy load movement is now suppressed.

By the way, FIG. 2 (A) (B) (C) (D)
Is a work stage 2 that is supported around the outer periphery of the central structure 1.
This is a description of an operating procedure for lifting using the lifting device 4. Note that this operation procedure is the same as that in the case of FIGS. 13 and 14 described above as the conventional apparatus, and therefore will be briefly described.

First, as shown in FIG. 2A, the work stage 2 itself is supported on the side of the central body 1 via the work stage stopper 3, and the guide column 5 of the lifting device 4 is provided with a locking bracket at the upper end thereof. Central body 1 through 5a (5a)
The state which was supported by the top end horizontal beam member 1b of the side is shown. Figure 2
(B) shows a state in which a pillar member or a horizontal beam member shown by hatching is formed on the central body 1 by using the work stage 2, and a portion corresponding to the first floor to be constructed is assembled. . FIG. 2C shows the guide pillar 5 in the lifting device 4.
First, that is, the jack 6 of the lifting device 4
(6) is actuated to raise the guide pillar 5, and the locking bracket 5a (5a) mounted on the upper end of the guide pillar 5 is raised to the level of the top end horizontal beam member 1b on the side of the central body 1 and the top end horizontal beam. The state locked by the member 1b is shown. Figure 2
(D) further releases the work stage stopper 3 (3) supporting the work stage 2 on the side of the central body 1 from the side of the central body 1, and the jack 6 in the lifting device 4
(6) shows a state in which the work stage 2 is raised by one floor.

3 (A) (B) (C) (D), the working stage 2 is raised in the same manner as shown in FIGS. 2 (A) (B) (C) (D) to raise a high-rise building. A series of work steps for construction will be described. First, FIG. 3A shows a state in which the work stage 2 is supported on the side of the central body 1 via the work stage stopper 3, and at this time, the head of the jack 6 in the lifting device 4 is It is shown that the work stage 2 is connected to the lower end of the upper chord horizontal beam member 2a, that is, the raising point of the work stage 2 is set to the upper chord horizontal beam member 2a of the work stage 2. Figure 3
FIG. 3B shows a state in which the work for constructing the first floor is completed on the central frame 1 using the work stage 2, and FIG.
(C) raises the guide pillar 5 of the raising device 4 and attaches the locking bracket 5a (5a) at the upper end thereof to the central body 1
The state which was supported by the top end horizontal beam member 1b of the side is shown. Further, FIG. 3D shows that the work stage 2 is lifted by the lifting device 4 described above.
2 shows a state in which the jack 6 (6) in FIG. 6 is actuated and raised to the level of the top horizontal beam member 1b of the central body 1.

FIG. 4 is a cross-sectional plan view taken along the line aa of FIG. 3B and is a plan view showing the arrangement of the raising device 4. In the embodiment, as shown in the drawing, eight lifting devices 4 are arranged around the central body 1. Moreover, each lifting device 4
The two locking brackets 5a (5a) at the upper end of each of the guide columns 5 are mounted on both sides of the column member 1a constituting the central body 1 as shown in FIG. 1 (C). That is, it is supported by the upper horizontal beam members 1b and 1b on both sides of the column member 1a in such a manner as to sandwich the column member 1a from both sides.

FIG. 5 is a bb cross-sectional plan view of FIG. 3B, showing the arrangement of the work stage stopper 3 for supporting the work stage 2 around the central body 1. As already described with reference to FIG. 1A, the two stopper members 3 are provided from the work stage 2 side to the central body 1 side.
(3) overhang, and the same strut member 1a on the side of the central body 1
Are fixed to the lower horizontal beam members 1b, 1b on both sides of the frame. That is, the fulcrum point of the work stage 1 with respect to the side of the central body 1 and the fulcrum point of the upper end of the guide column 5 when the work stage 2 is lifted using the lifting device 4,
It is shown that they are integrated into the same support member 1a that constitutes the central body 1.

6A, 6B, 6C and 6D, the work stage stopper 3 for supporting the work stage 2 on the side of the central body 1 is constructed as in the case of FIG. The lower chord horizontal beam member 2b is provided near the lower chord horizontal beam member 2b, and the head of the jack 6 of the lifting device 4 is also connected to the lower surface of the lower chord horizontal beam member 2b of the work stage 2 so that the work stage 2 is lifted up. The case where it is set to the lower chord horizontal member 2a is illustrated. 7 is a cross-sectional plan view taken along the line aa in FIG.
FIG. 8 is a plan view similar to the line bb in FIG. 8 and, as shown in FIGS. 4 and 5, the work stage stopper 3 and the raising device 4 are the same strut member 1a that constitutes the central body 1.
It shows the procedure for fixing the frame to the frame.

9A, 9B, 9C and 9D, the work stage stopper 3 is set near the upper chord horizontal beam member 2a constituting the work stage 2 unlike the case of FIG.
The head of the jack 6 in the lifting device 4 is also connected to the lower surface of the upper chord horizontal beam member 2a of the work stage 2, and the lifting points when raising the working stage 2 are also integrated in the upper chord horizontal beam member 2a of the work stage 2. An example in the case of allowing it is shown. Note that FIG. 12 is a cross-sectional plan view taken along the line aa of FIG. 9 (B), and FIG. 11 is a cross-sectional plan view taken along the line bb of the same, showing how the work stage stopper 3 and the raising device 4 are arranged. It is shown.

[0034]

Since the work stage lifting device according to the present invention is configured as described above with reference to the embodiments, the following effects can be exhibited as compared with the conventional lifting device. (1) Whether the work stage is supported on the side of the center frame in the process of assembling through the lifting device, or the work stage is raised along the center frame, the load constitutes the center frame. Since the same support members are collectively loaded, the number of load points can be minimized and the load fluctuation can be suppressed to the minimum. As a result, it has become possible to reduce the reinforcing members and the like around the load point.

[Brief description of drawings]

FIG. 1A is a front view of a work stage lifting device used for constructing a high-rise structure according to the present invention, FIG. 1B is a side view, and FIG. 1C is a plan view.

2 (A), (B), (C), and (D) are operation charts of the device when the work stage is lifted by the lift device according to the present invention.

3 (A), (B), (C), and (D) are elevation work process diagrams when the elevation device according to the present invention is applied to the construction of a high-rise building.

FIG. 4 is a cross-sectional plan view taken along the line aa of FIG.

5 is a cross-sectional plan view taken along the line bb of FIG. 3 (B).

6 (A), (B), (C), and (D) show that the work stage stopper of the lifting device is installed on the lower chord horizontal beam member of the working stage, and the head of the lifting device is also the lower chord of the working stage. FIG. 7 is a process diagram showing an example in which the work stage is raised by being connected to the lower surface of the horizontal beam member.

7 is a cross-sectional plan view taken along the line aa in FIG.

8 is a cross-sectional plan view taken along the line bb in FIG.

9 (A), (B), (C), and (D) show that the work stage stopper in the lifting device is installed near the upper chord horizontal beam member of the work stage, and the head of the jack in the lifting device is the same. It is process drawing which shows the Example connected to the lower surface of an upper chord horizontal beam member, and raising a work stage.

FIG. 10 is a cross-sectional plan view taken along the line aa of FIG. 9 (B).

11 is a cross-sectional plan view taken along the line bb of FIG. 9 (B).

12 (A), (B), (C), and (D) are process drawings for constructing a high-rise structure by a conventional jack-up method.

FIG. 13 is an operation diagram of the jack when the guide column of the lifting device is lifted up.

FIG. 14 is an operation diagram of the jack when raising the work stage.

FIG. 15 is a plan view of FIG. 12 (B).

[Explanation of symbols]

 1 ... Central structure (high-rise structure in the process of construction) 1a ... Column member 1b ... Horizontal beam member 2 ... Working stage 2a ... Upper chord horizontal beam member 2b ... Lower chord horizontal beam member 2c ... Working stage Loading member 3 …… Work stage stopper 3a …… Operating cylinder 4 …… Raising device 5 …… Guide pillar 5a …… Locking bracket 5b …… Locking hole 5c …… Guide roller 6 …… Jack 7 …… Lock pin 8: Lock box

Claims (2)

[Claims] 1. A work stage lifting device for use in construction of a high-rise structure, comprising: a work stage stopper for supporting the work stage around a skeleton in a construction process; and a device for lifting the work stage along the skeleton. The work stage stopper is equipped with two stopper members which can be freely projected from the upper or lower horizontal beam member side constituting the work stage toward the skeleton side, and these two stopper members are pillar members constituting the skeleton body. The lifting device comprises a combination of a guide pillar having two locking brackets at the upper end and a jack, and the guide pillar itself has a fixed pitch. Is provided with locking holes in multiple stages, and the two locking brackets are supported on both sides of the pillar member of the frame. The jack has lock pins at the upper end and the lower end that can be engaged with and disengaged from the locking holes of the guide columns, and the head of each jack is connected to the lower surface of the horizontal beam member of the work stage. A work stage lifting device used for the construction of high-rise structures, which is characterized by its structure. 2. The work stage lifting device used in the construction of a high-rise structure according to claim 1, wherein the jack of the lifting device is a hydraulically operated jack.