JPH08218620A - Scaffold device for constructing towerlike structure - Google Patents

Abstract

PURPOSE: To sharply reduce the burden of workers and improve the work efficiency when a scaffold is assembled and demolished for the skeleton forming work. CONSTITUTION: Mast blocks 8a forming a mast 8 are supported and erected, the mask blocks 8a are connected in sequence from the lower end side, and an extractable mast block lift device 9 is installed nearly at the center section of a tower-like structure 1 such as a chimney to be constructed on the foundation surface. A mast block carry-in/out device 12 travelable along a guide rail 10 between the outside and inside of the skeleton 2 of the tower-like structure 1 and capable of carrying-in/out the mast blocks 8a to the lower section of the mast block lift device 9 via a carry-in/out port, 11 at the lower section of the skeleton 2 is arranged. A landing device 13 having a moving landing 19 liftably arranged between an upper fixed landing 17 and a lower fixed landing is provided at the upper section of the mast 8 erected by the mast block lift device 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffolding device for constructing a tower structure used for constructing a tower structure such as a chimney.

[0002]

2. Description of the Related Art Generally, when constructing a tower-like structure such as a chimney, as shown in FIG. 3, a plurality of stages of formwork 3 are assembled to form a skeleton 2 of the tower-like structure 1, and After the concrete is poured into and solidified, the formwork 3 is sequentially removed and the building blocks 2 are formed by sequentially stacking them one block at a time. At the same time, the scaffolding 4 for forming the building blocks 2 is assembled. Work to form the landing 5 will be carried out in parallel.

In the figure, 6 is a suspension scaffold suspended from the uppermost form 3 by a chain 6a for removing the form 3 outside the frame 2, and 7 is a ladder for descending to the suspension scaffold 6. , The outer formwork 3 hangs the suspension scaffolding 6 and lowers the ladder 7 from the uppermost formwork 3, and the worker makes the ladder 7
Then, the operator dismounts from the suspended scaffolding 6 and the removal work is performed.

After the body 2 is completed, the assembled scaffold 4
The landing site 5 is dismantled from the top, and it is put down on the ground and collected.

[0005]

However, as described above, the scaffold 4 is assembled and the landing 5 is formed at the same time as the work for forming the body 2 is completed.
As the work progresses, it is necessary to transport the components of the formwork 3, scaffold 4, and landing 5 to higher places as the work progresses, which increases the burden on the worker and reduces the work efficiency. In addition, the scaffold 4 and the landing 5 assembled after the completion of the skeleton 2 are disassembled sequentially from the upper part, and the work of lowering them to the ground and collecting them also has a drawback that it takes time and effort.

[0006] In view of the above situation, the present invention can significantly reduce the burden on a worker at the time of assembling and dismantling a scaffold for the work of forming a structure, and can improve the work efficiency by improving the work efficiency of the tower structure. It is intended to provide a device.

[0007]

According to the present invention, there is provided a mast block elevating device which is installed on a foundation surface and supports and elevates a mast block which constitutes a mast to successively add the mast blocks from the lower end side and which can be pulled out. A mast block loading / unloading device capable of loading / unloading the mast block to the lower part of the mast block lifting device, an upper fixed landing fixed to the upper end of the mast standing by the mast block lifting device, and a lower part of the upper fixed landing. A landing apparatus having a lower fixed landing fixed at a required interval and a moving landing arranged vertically movable between the upper fixed landing and the lower fixed landing. is there.

[0008]

Therefore, the mast block elevating device is installed on the foundation surface, and the mast block loading / unloading device is arranged so as to be movable between the outside and the inside of the tower structure structure. After the frame is assembled and concrete is poured into the frame to solidify it, the frame is removed and the blocks are sequentially stacked one by one, and the skeleton forming work is carried out.

When the height of the skeleton becomes high and a scaffold is required, the mast block is carried into the mast block lifting device by the mast block loading / unloading device, and the mast block is supported and lifted by the mast block lifting device to lower the lower end. When the required number of mast blocks protrude above the mast block lifting device, fix the upper fixed landing on the upper end of the added mast, and open the required space below the upper fixed landing. A lower fixed landing is fixed, and a moving landing is formed between the upper fixed landing and the lower fixed landing so as to be able to move up and down to form a landing gear device. A step form is assembled, and concrete is poured into the form to solidify.

When the concrete is solidified, the bottom formwork is removed, the removed formwork is placed on the moving landing, and in this state, the mast block is replenished by the mast block lifting device and the mast block loading / unloading device as described above. While raising the landing gear by one mast block, raise the moving landing to the upper limit position, assemble the removed formwork on the uppermost formwork, and then pour concrete into the formwork from the upper fixed landing. When solidified and the concrete is solidified, lower the moving landing to the lower limit position, remove the bottom formwork, and repeat the same operation as above to proceed with the formation work of the skeleton of the tower structure. Go.

When the skeleton of the tower-like structure is completed, the operation is the reverse of the above-mentioned mast block addition, that is, the mast block elevating device raises the entire mast by the required amount, and the mast block is placed below the mast block at the bottom. The block loading / unloading device is fed in, the mast is placed on the mast block loading / unloading device, and the mast block of the second stage from the bottom is raised by the required amount by the mast block lifting device from this state, and the mast block of the bottom stage Is carried out to the outside of the skeleton by the mast block carrying-in / carrying-out device, and thereafter, the carrying-out work is advanced in the same manner in which the mast block is sequentially pulled out from the lower end side.

When the work of unloading the mast block is advanced and the landing gear is lowered to a lower position on the mast block elevating device, the upper fixed landing, the moving landing and the lower fixed landing of the landing gear are disassembled and carried out to the outside of the body. After that, the remaining mast block is carried out to the outside of the skeleton in the same manner as described above, and the mast block lifting device is disassembled and carried to the outside of the skeleton.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show an embodiment of the present invention. In the drawings, the parts designated by the same reference numerals as those in FIG. 3 represent the same parts, such as a chimney constructed on a foundation surface. A mast block 8 that constitutes a mast 8 at approximately the center of the tower-shaped structure 1.
The mast block 8 is supported and raised in order from the lower end side.
The mast block elevating device 9 which is replenished with a and can be pulled out is installed, and it is possible to travel along the guide rail 10 between the outside and the inside of the body 2 of the tower-shaped structure 1 and the mast block 8a is the body. 2 Lower entrance / exit 11
A mast block loading / unloading device 12 that can be loaded and unloaded to and from the mast block elevating device 9 is disposed via the mast block elevating device 9, and a landing device 13 is provided above the mast 8 that is erected by the mast block elevating device 9.

In the mast block elevating device 9, a cylinder 15 extending in the longitudinal direction is provided on a body frame 14 which is erected on the foundation surface, and the body frame 14 is attached to the tip of the rod 15a of the cylinder 15. It has a structure in which an elevating frame 16 is attached which is capable of elevating and lowering along and can support the mast block 8a by inserting and removing an unillustrated dogwood.

Further, the landing gear device 13 is provided at the upper end of the mast 8 erected by the mast block elevating device 9.
The upper fixed landing 17 is fixed, the lower fixed landing 18 is fixed below the upper fixed landing 17 with a required space, and the moving landing 1 is provided between the upper fixed landing 17 and the lower fixed landing 18.
9 is arranged so that it can be lifted and lowered by driving a landing gear lifting device 20 such as an electric hoist.

In the figure, reference numeral 21 is a fixing jack for fixing the outer peripheral edge of the lower fixed landing 18 to the inner peripheral surface of the frame 2.

Next, the operation of the above embodiment will be described.

First, on the foundation surface, a mast block elevating / lowering device 9 is installed by using a crane or the like, and a mast block loading / unloading device 12 is installed at a substantially central portion of a tower-like structure 1 such as a chimney to be constructed. The tower structure 1
The mold 3 is assembled in a state in which it is arranged so as to be movable along the guide rail 10 between the outside and the inside of the body 2 of
After pouring concrete into the mold 3 to solidify it,
The work of forming the skeleton 2 is proceeded by removing the formwork 3 and sequentially stacking the blocks one by one.

When the height of the skeleton 2 becomes high and a scaffold is required, the mast block 8a is carried into the mast block lifting device 9 by the mast block loading / unloading device 12, and the cylinder 15 is extended to lift the lifting frame 16. In the state where the mast block 8a is supported by the lift frame 16 by using an unillustrated lifter frame 16, the cylinder 15 is contracted and the mast block 8 is contracted.
Raise a.

After raising the mast block 8a,
The mast block loading / unloading device 12 is moved to the outside of the skeleton 2, and the next mast block 8a is loaded into the lower part of the mast block 8a pulled up by the mast block lifting device 9, and the upper mast block 8a is moved to the cylinder 1
After being lowered by a required amount by driving 5 and placed on the lower mast block 8a and connected by a pin or the like, the hook is pulled out to move the lifting frame 16 to the cylinder 1
5 is extended to the lower part of the lower mast block 8a, and by repeating the same operation as described above, the mast blocks 8a are successively added from the lower end side.

When the mast blocks 8a are replenished and the required number of mast blocks 8a project above the main body frame 14 of the mast block lifting device 9, the upper fixed landing 17 is fixed to the upper end of the replenished masts 8. Lower fixed landing 1 with a required space below the upper fixed landing 17
8 fixed, the upper fixed landing 17 and the lower fixed landing 18
A movable landing hall 19 is arranged between the and the landing gear so that it can be raised and lowered by driving a landing gear lifting device 20 such as an electric hoist to form a landing gear device 13, and the landing gear device 13 is used to form the mold 3 as shown in FIG. Then, concrete is poured into the mold 3 and solidified.

When the concrete is solidified from the state shown in FIGS. 1 and 2 (a), the lowermost form 3 of the three stages is removed. As for the outermost lower mold 3, the hanging scaffold 6 is suspended from the uppermost mold 3 and the ladder 7 is lowered as in the conventional case, and the worker descends from the ladder 7 to the suspending scaffold 6 to perform the removal work. Is done.

After removing the inner mold 3 of the lowermost stage, the removed mold 3 is placed on the moving landing 19, the fixing jack 21 is removed, and in this state, the mast block 8a is added as in the above description. Landing gear 1 as shown in 2 (b)
3 is lifted by one mast block 8a, the fixed jack 21 is extended to fix the lower fixed landing 18, and the moving landing 19 is raised to the upper limit position, and the removed form 3 is placed on the uppermost form 3. After the assembling, a ladder (not shown) provided on the uppermost mast block 8a is used to go up onto the upper fixed landing 17 and the upper fixed landing 1
Concrete is poured into the mold 3 from 7 to solidify.

When the concrete is solidified, as shown in FIG. 2C, the moving landing 19 is lowered to the lower limit position, the lowermost form 3 among the three stages is removed, and the same operation as described above is repeated. By doing so, the work of forming the skeleton 2 of the tower-shaped structure 1 proceeds.

When the skeleton 2 of the tower-shaped structure 1 is completed,
The operation opposite to the above-described addition of the mast block 8a, that is, the cylinder 15 of the mast block elevating device 9 is extended to move the elevating frame 16 to the lowermost mast block 8a.
With the mast block 8a being supported by the lift frame 16 using a hook (not shown) on the lower frame, the cylinder 15 is contracted by a required amount to raise the mast 8 together with the elevator frame 16 by a required amount. , The mast block loading / unloading device 12 is fed to the lower side of the mast block 8a in the lowermost stage, the cylinder 15 is extended by a required amount, and the mast 8 is placed on the mast block loading / unloading device 12. A state in which the cylinder 15 is contracted to position the elevating frame 16 below the second mast block 8a from the bottom, and the elevating frame 16 supports the second mast block 8a from the bottom by using the Kanuki. Then, remove the pin or the like connecting the mast block 8a and the lowermost mast block 8a to connect them. After dividing, the further from the lower to the requirements contracted cylinder 15 of the second stage mast block 8
a is raised, the lowermost mast block 8a is carried out to the outside of the skeleton 2 by the mast block loading / unloading device 12, and then the mast block 8a is similarly pulled out sequentially from the lower end side to carry out the work. .

When the unloading work of the mast block 8a is advanced and the landing gear device 13 is lowered to a lower position on the body frame 14 of the mast block lifting device 9, the landing gear device 1
3 Upper fixed landing 17, moving landing 19 and lower fixed landing 1
After disassembling 8 and carrying out to the outside of the skeleton 2, the remaining mast block 8a is carried to the outside of the skeleton 2 in the same manner as described above, and the mast block lifting device 9 is disassembled and carried to the outside of the skeleton 2.

In this way, the burden on the worker during the assembling and disassembling of the scaffold for the work of forming the skeleton 2 can be significantly reduced, and the work efficiency can be improved.

The scaffolding device for constructing a tower-like structure according to the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention. is there.

[0030]

As described above, according to the scaffolding apparatus for constructing a tower-like structure of the present invention, it is possible to remarkably reduce the burden on a worker at the time of assembling and disassembling the scaffolding for building a structure, An excellent effect that work efficiency can be improved can be obtained.

[Brief description of drawings]

FIG. 1 is a side sectional view of an embodiment of the present invention.

FIG. 2 is a side sectional view showing a skeleton forming work step in one embodiment of the present invention.

FIG. 3 is a side sectional view of a conventional example.

[Explanation of symbols]

 1 tower-like structure 2 frame 3 formwork 8 mast 8a mast block 9 mast block lifting device 12 mast block loading / unloading device 13 landing device 17 upper fixed landing 18 lower fixed landing 19 moving landing

Front page continuation (72) Inventor Toshinori Fukumoto 6-4 Akashi-cho, Chuo-ku, Tokyo Ishikawajima Transport Machinery Co., Ltd. (72) Inventor Takaomi Hirabe 6-4 Akashi-cho, Chuo-ku, Tokyo Ishikawajima Transport Machinery Co., Ltd. (72) Inventor Setsuro Matsushima 18-8 Tominecho, Ota-ku, Tokyo (72) Inventor Kazuyoshi Yamamoto Fukuoka 297 Fukuoka-cho, Nishitaba-gun, Toyama Prefecture (72) Inari Akinari Watanabe 18 Shimokawa, Tanabe, Aomori Prefecture −67

Claims (1)

[Claims] 1. A mast block elevating device which is installed on a foundation surface and supports and elevates a mast block that constitutes a mast, and which can be sequentially withdrawn from the lower end side by adding and removing the mast block, and the mast block of the mast block elevating device. Mast block loading / unloading device capable of loading / unloading to the lower part, upper fixed landing fixed to the upper end of the mast erected by the mast block elevating device, and fixed below the upper fixed landing with a required space. A scaffolding device for constructing a tower-like structure, comprising: a lower fixed landing, and a landing device having a movable landing that is vertically movable between the upper fixed landing and the lower fixed landing.