JP2003253886A - Construction equipment and construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide construction equipment and a construction method allowing posts to support only the weight of a work stage by supporting the work stage itself put under the action of horizontal force of an earthquake, a wind, or the like, to a building, taking support reaction on the basis of the form and construction method of the constructed building. <P>SOLUTION: This construction equipment is provided with a work stage 7 disposed on a construction object floor adjacently to a core 1 positioned higher than the construction object floor, and provided with a construction work machine; posts 6 detachably installed on a post installation floor positioned above the construction object floor, to support the work stage 7; a climbing mechanism provided between the work stage 7 and posts 6 to put the work stage 7 and posts 6 in relative lifting operation; and rolling rollers 20 provided at the work stage 7 movably to the core 1 to support the horizontal force applied to the work stage 7, jointly with the core 1. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, based on the form of a building to be constructed and the construction method thereof, uses a reaction stage for supporting the working stage itself which is largely affected by horizontal forces such as earthquakes and winds. The post can support only the weight of the work stage, and the horizontal force acting on the work stage reduces the influence on the post, and the work stage is supported stably. The present invention relates to a construction device and a construction method that can reduce the strength required for a post.

[0002]

2. Description of the Related Art In recent years, automation and efficiency of construction work for high-rise / super-high-rise buildings have been promoted. For example, there is known a construction apparatus in which a work stage is mounted on a post that is erected on the ground and is sequentially added upward (for example, Japanese Patent Laid-Open No. 10-317676). In this type of construction equipment, while the work stage is supported by the post, the construction work is performed on the target floor directly under the work stage by using various automatic work machines equipped with the work stage, while the post is performed. The work stages are sequentially raised by adding the above to the construction stage, which allows the building construction work to proceed from the lower level to the upper level of the building.

In particular, the post reaches a considerable height from the ground according to the height of the building, and the work stage is mounted on the top position thereof, while supporting the vertical load of the work stage. Furthermore, it is required to have sufficient strength to withstand the horizontal force due to the earthquake or wind that acts on this work stage, which results in structural rigidity. In consideration of these points, a post may be installed on the post to support the horizontal force applied to the post by spanning between the post and a building that has already been constructed. It was done. That is, in the past, a rigid restraint was provided between the post and the building to resist the horizontal force acting on the post.

[0004]

However, in such a conventional configuration, that is, in the concept that the post supporting the working stage also supports the horizontal force input from the working stage, even if a tentative is used, However, the uppermost part of the post, which is considerably above the retainer and connected to the work stage, is also freely swung by the work stage subjected to the action of the horizontal force. There is a problem in that it is difficult to support it stably, and the post in that portion must have a structure that is considerably rigid.

The present invention was devised in view of the above problems of the prior art, and is based on the form of the building to be constructed and the construction method, and the working stage itself which is largely subjected to the action of horizontal force such as an earthquake or wind. To support the building with a supporting reaction force, and to support only the weight of the work stage on the post so that the horizontal force acting on the work stage has less effect on the post. And can support the work stage stably,
An object of the present invention is to provide a construction device and a construction method capable of reducing the strength required for a post.

[0006]

SUMMARY OF THE INVENTION A construction apparatus according to the present invention is a work stage provided on a floor to be constructed adjacent to a preceding construction site having a height higher than this, and provided with a construction work machine. And a post that is removably installed on a post installation floor located below the construction target floor and that supports the work stage, and is provided between the work stage and the post, and with respect to the post. In order to move the working stage up and down to move the construction target floor to the upper floor, and to move the post with respect to the working stage to move the post installation floor to the upper floor, A climbing mechanism for moving up and down the work stage and the post relatively, and a work mechanism provided on the work stage so as to be movable with respect to the preceding construction site. Between the said prior treated region, characterized in that a horizontal force support means for supporting the horizontal force acting on the working stage.

Further, the horizontal force support means is appropriately disposed around the preceding construction site in a portion of a through hole formed in the work stage.

Further, the construction method according to the present invention includes a work stage provided on a construction target floor adjacent to a preceding construction site having a height higher than the construction stage, and a work stage provided with a construction work machine; A post that is removably installed on a post installation floor located below the target floor and that supports the work stage, is provided between the work stage and the post, and is used for the work with respect to the post. In order to raise and lower the stage to move the construction target floor to the upper floor, and to raise the post with respect to the work stage to move the post installation floor to the upper floor, these work stages And a climbing mechanism for moving the post relative to each other, and the work stage movably provided with respect to the preceding construction site. A horizontal force supporting means for supporting a horizontal force acting on the work stage between the work stage and the work stage, when the construction work by the construction work machine of the work stage is advanced upward, In order to set the preceding construction site at a height position higher than that of the construction target floor, a step of constructing the preceding construction site prior to the construction target floor is included.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of a construction apparatus and a construction method according to the present invention will be described in detail below with reference to the accompanying drawings. In the present embodiment, as shown in FIGS. 1 and 2, a core 1 made of reinforced concrete is constructed in the central portion, and columns 2 and beams 3 are provided around the core 1.
A case of constructing a building 5 having a center core / peripheral frame structure in which the outer peripheral frame 4 of S structure, RC structure, SC structure, or SRC structure is constructed is described as an example. In the illustrated example, both the core 1 and the outer peripheral frame 4 have a rectangular outline cross-section. This building 5 is constructed such that both the core 1 and the outer peripheral frame 4 are constructed by a work stage 7 supported by posts 6, and these figures show a state in which the building 5 is being constructed. Has been done.

The work stage 7 is located above the floor F to be constructed, which is in the process of constructing the outer peripheral frame 4, and at a lower position than the height of the core 1 in which the construct work is being conducted. It That is, in the building 5, the core 1 and the outer peripheral frame 4 are simultaneously constructed in a state where the core 1 is constructed before the outer frame 4 is constructed. The work stage 7 uses a steel frame or the like,
A through hole 8 having a planar outer dimension covering the lower outer peripheral frame 4 and penetrating the core 1 as a preceding construction site having a height higher than the construction target floor F is formed, and has a considerable height. It is composed of a rectangular annular frame structure.
In the present embodiment, two pairs of lifting cranes 9 are provided on the work stage 7 so as to face each other with the core 1 interposed therebetween. Instead of the lifting crane 9, a lifting elevator reaching the work stage 7 from the ground may be installed.

A construction work zone 10 is provided below the work stage 7, and the construction work zone 10 includes:
A construction work machine such as an overhead crane for performing a construction work of the outer peripheral frame 4 on the construction target floor F immediately below is provided. Further, a preceding work zone 11 is provided above the work stage 7, and the preceding work zone 11 is provided.
Is provided with a core building device such as a scaffolding and a formwork device for carrying out the construction work of the core 1 which is higher than the work stage 7 and is located at a high place above the construction floor F. .

Work stage 7 having such a structure
The four corners of which are located below the floor F to be constructed, and which are appropriately installed on the outer peripheral frame 4 which has already been constructed are used as post-installed floors P.
Supported by the post 6 of the book. These posts 6
It is linked to the work stage 7 so as to pass through it vertically. And especially on this work stage 7,
A well-known climbing mechanism 13 is integrally provided. The climbing mechanism 13 moves the work stage 7 up and down with respect to the post 6 to move the construction target floor F to an upper floor, or raises the post 6 with respect to the work stage 7 to install the post. In order to move the floor P to an upper floor, the work stage 7 and the post 6 are relatively moved up and down.

As shown in FIG. 3, this climbing mechanism 1
Reference numeral 3 denotes a lower lock device 15 which is formed in a ring shape surrounding the post 6 and which is fixed to the lower part of the working stage 7 via a bracket 14, and on the lower lock device 15 at appropriate intervals in the circumferential direction. A plurality of telescopic cylinder devices 16 penetrating the work stage 7 and the post 6
A telescopic cylinder device 16 formed in a ring shape surrounding the
It is composed of an upper lock device 17 fixed on the top.
The lock devices 15 and 17 are provided with lock pins 18 and 19 which are removably engaged with the post 6.
In the state where the working stage 7 is statically supported by the post 6, the lock pins 18 and 19 of both the upper lock device 17 and the lower lock device 15 are engaged with the post 6.

First, a case where the working stage 7 is raised relative to the post 6 will be described with reference to FIG.
As shown in (a), first, the lock pin 19 of the upper lock device 17 is disengaged from the post 6 [see (a)], and the weight of the working stage 7 is supported by the post 6 via the lower lock device 15. In this state, the upper lock device 17 can be moved. Next, as shown in FIG. 3B, the telescopic cylinder device 16 is extended and the upper lock device 17 is raised. Subsequently, the lock pin 19 of the upper lock device 17 is engaged with the post 6 [see (b)], and the work stage 7 can be hung on the post 6 via the upper lock device 17, and the lower lock is performed. The lock pin 18 of the device 15 is disengaged from the post 6 [see (C)]. In this way, with the lower lock device 15 movable this time, the telescopic cylinder device 16 is contracted and the lower lock device 15 is pulled up, as shown in FIG. 3C. Along with this pulling up, the working stage 7 rises with respect to the post 6.

Finally, the lock pin 1 of the lower lock device 15
When 8 is engaged with the post 6 [see (d)], the work stage 7 moves up by one stroke of the telescopic cylinder device 16 to return to the state of FIG. 3 (a), and the above operation is repeated. The work stage 7 can be sequentially raised with respect to the post 6. Of course, the work stage 7 can be lowered by performing the opposite operation.
Particularly, in the present embodiment, by disposing the upper lock device 17 on the work stage 7 and fixing the lower lock device 15 below the work stage 7 via the bracket 14, the work lock Although the climbing mechanism 13 in the form of raising the stage 7 has been described as an example, the upper locking device 17 is fixed below the working stage 7 via the bracket 14, and the lower locking device 15 is set to the telescopic cylinder device 16.
Needless to say, the climbing mechanism 13 may be fixed to the lower portion of the work stage 7 to push up the work stage 7.

On the other hand, the case of raising the post 6 relative to the work stage 7 will be described. In this case, the work stage 7 is temporarily placed on the construction target floor F in advance. Therefore, only the weight of the post 6 acts on the climbing mechanism 13. As shown in FIG. 4A, first, the lock pin 18 of the lower lock device 15 is disengaged from the post 6 [see (e)], and the upper lock device 17 is released.
Can be moved while the post 6 is suspended. Next, as shown in FIG. 4B, the telescopic cylinder device 16 is extended and the upper lock device 17 is pushed up. With this push-up, the post 6 rises with respect to the work stage 7. Subsequently, the lock pin 18 of the lower lock device 15 is engaged with the post 6 [see (f)], and the post 6 is suspended by the lower lock device 15 this time.
The lock pin 19 of is removed from the post 6 [see (G)]. With the upper lock device 17 thus movable, the telescopic cylinder device 16 is contracted to pull down the upper lock device 17, as shown in FIG. 4C.

Finally, the lock pin 1 of the upper lock device 17
When 9 is engaged with the post 6 [see (h)], the post 6 moves up by one stroke of the telescopic cylinder device 16 and the post 6 is moved to the position shown in FIG.
By returning to the state of (a) and repeating the above operation, the post 6 can be sequentially raised with respect to the work stage 7. Of course, the post 6 can be lowered by performing the opposite operation.

By providing the working stage 7 with the climbing mechanism 13 having the above-described functions, both the working stage 7 and the post 6 are moved up and down relatively to move the working stage 7 upward in sequence. As a result, the construction target floor F for constructing the outer peripheral frame 4 can be moved upward and the construction in the height direction of the core 1 can be promoted, and the building 5 can be constructed sequentially in the height direction. be able to.

Further, in the present embodiment, the work stage is arranged above the construction target floor F and has the construction work zone 10 below which the construction of the outer peripheral frame 4 is performed on the construction target floor F. A preceding work zone 11 for constructing the core 1 which is a work place at a high place above the construction target floor F, which is higher in height than the work stage 7, is provided on the work piece 7. The working stage 7 is located between the core 1 that is constructed in advance and has a high height position, and the construction target floor F that is constructed in a subsequent position and has a low height position,
The height between the construction target floor F and the core 1 is relatively low, and the height position of the construction site where the core 1 is constructed is relatively low as compared with the case where the construction target floor F is used as a reference. It is made to become.

Further, as shown in FIG. 2, the working stage 7 is adjacent to the core 1 as a preceding construction site located higher than the working stage 7, that is, the through hole of the working stage 7 in the illustrated example. It surrounds the core 1 through 8. A rolling roller 20 as a horizontal force supporting means for supporting a horizontal force acting on the work stage 7 with the core 1 is movably provided on the work stage 7 with respect to the core 1. To be That is, the rolling roller 2
0 is rotated vertically in accordance with the ascending / descending direction of the working stage 7 with respect to the core 1 so as not to interfere with at least the lifting / lowering operation of the working stage 7 by the climbing mechanism 13. It is designed to drive to.

In the illustrated example, the rolling roller 20 is provided with a through hole 8 formed in the working stage 7 so as to support a horizontal force from any horizontal direction.
They are arranged around the core 1 at appropriate intervals. The rolling roller 20 is interposed between the work stage 7 and the core 1 so that the core 1 can support the horizontal movement of the work stage 7 by an external force such as seismic force or wind force. It is designed to prevent it.

Next, a construction method using the construction apparatus according to this embodiment will be described. In FIG. 1, a building 5 composed of a peripheral frame 4 and a core 1 is constructed in advance so that the core 1 is constructed so that the height position of the core 1 is higher than the height position of the peripheral frame 4. The construction of is shown. The work stage 7 is supported via a climbing mechanism 13 at a position lower than the height position of the core 1 above the construction target floor F of the outer peripheral frame 4 by a post 6 that is detachably provided on the post installation floor P. ing. In this work stage 7, the material carried in by using the lifting crane 9 is used to construct the outer peripheral frame 4 of the construction target floor F by the construction work machine in the construction work zone 10 and the core construction in the preceding work zone 11. Depending on the device
The core 1 is built simultaneously with the outer frame 4.

When the construction of the construction target floor F and the core 1 portion is completed, the climbing mechanism 13 is used to move the work stage 7 up to the next floor. In the illustrated example, the post 6 is set to a length that can raise the work stage 7 by 3 floors,
In FIG. 5, two-step operation (L1, L
2) shows a state in which the work stage 7 is raised by 3 floors from the state of FIG. Next, as shown in FIG. 6, in order to move the post installation floor P to the upper floor, the posts 6 separated from the post installation floor P are installed.
Is raised by the climbing mechanism 13 (L3).
At this time, the work stage 7 is previously lowered by the climbing mechanism 13 onto the construction target floor F immediately below (D) and temporarily placed. In this state, the posts 6 are raised by three floors, and the new upper floor is set as the post installation floor P. Thereafter, as shown in FIG. 7, the work stage 7 temporarily placed on the construction target floor F is lifted along the post 6 by the climbing mechanism 13 (L4), and is located above the construction target floor F from the height position of the core 1. By returning to the state of FIG. 1 by arranging it at a lower height position, the building 5 can be successively constructed upward by repeating this.

In particular, in this embodiment, the horizontal external force acting on the working stage 7 is received by the rolling roller 20 acting as a supporting reaction force on the core 1, and the working stage 7
It is possible to prevent the lateral swaying of the post and stably support it by the post 6. In particular, since the horizontal movement of the work stage 7 itself located above the post 6 can be directly blocked, the post 6 is hardly affected by the horizontal force,
The strength required of the post 6 can also be reduced to the extent that it can support the vertical load of the work stage 7. In addition, the core 1 that takes the reaction force of supporting the working stage 7 is originally
Since it is constructed with a high structural strength that is the core of the building strength in relation to the outer peripheral frame 4, the work stage 7 can be supported extremely rationally.
The rolling roller 20 can also serve as a guide when the work stage 7 is moved up and down with respect to the core 1.

Further, since the climbing mechanism 13 is integrally provided on the working stage 7, the climbing mechanism 13 only weights the working stage 7 when moving up and down, and simply moves the post 6 when moving up. 6
It is sufficient to bear only the weight of the above, and it is possible to reduce the necessary capacity and robustness. Therefore, the device cost and the running cost of the climbing mechanism 13 can be reduced.

On the work stage 7, the floor F to be constructed, which is higher than the work stage 7 in height,
Since the preceding work zone 11 for constructing the core 1 which is a high-place construction site above is provided, the height position of the construction site where the core 1 is constructed is not the floor F to be constructed but the height of the working stage 7. With the position as the reference, the height becomes relatively low, work in high places can be eliminated, and construction safety can be improved. Further, since the preceding work zone 11 also rises as the work stage 7 rises, the outer peripheral frame 4 of the construction target floor F and the core 1 can be simultaneously constructed, and the formwork and work of the preceding work zone 11 can be performed. It is possible to greatly simplify the lifting device for changing the scaffolding.

[0027]

In summary, the construction apparatus and construction method according to the present invention are based on the form of the building to be constructed and the construction method, for example, in the case of a center core / peripheral frame building, the core is more than the outer peripheral frame. By constructing it high in advance, the working stage itself, which is greatly affected by horizontal forces such as earthquakes and winds, can be supported by the building by supporting the reaction force, and the post can only support the weight of the working stage. It is possible to support the work stage, to reduce the influence of horizontal force acting on the work stage on the post, to stably support the work stage, and to reduce the strength required for the post. You can

[Brief description of drawings]

FIG. 1 is a front view of a building under construction showing a preferred embodiment of a construction apparatus and a construction method according to the present invention.

FIG. 2 is a plan view of the building shown in FIG.

FIG. 3 is an explanatory diagram for explaining a lifting operation of the work stage by the climbing mechanism applied to the construction apparatus and the construction method according to the present invention.

FIG. 4 is an explanatory diagram for explaining a post raising operation by a climbing mechanism applied to the construction apparatus and the construction method according to the present invention.

FIG. 5 is a front view of the building for explaining the ascending process of the work stage during the construction of the building by the construction apparatus and the construction method according to the present invention.

FIG. 6 is a front view of the building for explaining the process of raising the posts during the construction of the building by the construction apparatus and the construction method according to the present invention.

FIG. 7 is a front view of the building showing the installation state of the work stage after the post operation during the construction of the building by the construction apparatus and the construction method according to the present invention.

[Explanation of symbols]

1 core 6 posts 7 Working stage 8 through holes 13 Climbing mechanism 20 Rolling roller F Construction target floor P post installation floor

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Yuichi Ikeda             4-640 Shimoseido, Kiyose City, Tokyo Stocks             Company Obayashi Technical Research Institute F-term (reference) 2E174 CA03 CA13 EA03

Claims (3)

[Claims] 1. A work stage, which is disposed on a construction target floor adjacent to a preceding construction site having a height higher than the construction stage, is provided with a construction work machine, and is located below the construction target floor. A post that is detachably installed on the post installation floor and that is provided between the post for supporting the work stage and the work stage and the post, and is configured to raise and lower the work stage with respect to the post. While moving the above construction target floor to the upper floor,
A climbing mechanism for moving the work stage and the post relative to each other in order to raise the post with respect to the work stage and move the post installation floor to an upper floor; and the work stage, A construction device comprising: a horizontal force supporting means that is provided so as to be movable with respect to the preceding construction site and that supports a horizontal force acting on the work stage between the preceding construction site. . 2. The horizontal force support means is appropriately disposed around the preceding construction site in a portion of a through hole formed in the work stage. Construction equipment. 3. A working stage, which is disposed on the construction target floor adjacent to a preceding construction site having a height higher than the construction stage, is provided with a construction work machine, and is located below the construction target floor. A post that is detachably installed on the post installation floor and that is provided between the post for supporting the work stage and the work stage and the post, and is configured to raise and lower the work stage with respect to the post. While moving the above construction target floor to the upper floor,
A climbing mechanism for moving the work stage and the post relative to each other in order to raise the post with respect to the work stage and move the post installation floor to an upper floor; and the work stage, And a horizontal force support means that is provided so as to be movable with respect to the preceding construction site and that supports a horizontal force acting on the working stage between the preceding construction site and the construction of the working stage. When advancing the construction work by the work machine upward, in order to make the preceding construction site higher than the construction target floor,
A construction method comprising a step of constructing the preceding construction site ahead of the construction target floor.