JP3263504B2 - Construction method of tower structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of erection of a tower-like structure such as a high-rise chimney with an exterior plate.

[0002]

2. Description of the Related Art FIG. 7 shows a schematic configuration of a conventional tower-like structure erection method for erection of a high-rise chimney with an exterior plate. As shown in the figure, the high-rise chimney 101 is composed of four inner cylinder structures 102, 103, 104, 105 and one outer cylinder structure 106. In order to build the high-rise chimney 101, first, a plurality of inner cylinder blocks 102a are stacked to a predetermined height by a crawler crane (not shown) to build the inner cylinder structure 102, and a post crane 107 is installed on the top thereof.

Then, the inner cylinder structure 102 on which the post crane 107 is installed is lifted by a jack-up device (not shown), and the inner cylinder block 102a carried by the carriage 108 is inserted and sequentially erected. next,
Using the post crane 107 on the inner cylinder structure 102, other inner cylinder structures 103, 104, and 105 are erected, and the outer plate 106a and the beam member 106b are lifted to construct the outer cylinder structure 106.

[0004]

However, in such a conventional method for erection of a tower-like structure, the inner cylindrical structures 103, 104, 1 are constructed using one post crane 107.
05 and the outer plate 106 of the outer cylinder structure 106
a) Since the beam material 106b is lifted and built, this work is a one-by-one transfer operation, resulting in a problem that the work efficiency is not good and a long construction period is required.

[0005] Further, since the lifting operation of each member by the post crane 107 is performed almost at a high place, the safety of the operation is insufficient, and the operation becomes inoperable during bad weather such as rainfall, and the operation rate is reduced. However, there was a problem such as a decrease in

An object of the present invention is to solve such a problem, and an object of the present invention is to provide a method of erection of a tower-like structure with an improvement in work safety and work efficiency.

[0007]

According to a first aspect of the present invention, there is provided a method for erection of a tower-like structure, comprising the steps of: installing an outer cylinder having a predetermined inner diameter on the ground; and providing a roof on the top of the outer cylinder. Temporarily, jacking up the existing outer cylinder by a predetermined amount to form a space below the existing outer cylinder, carrying another outer cylinder into the space, and connecting with the existing outer cylinder to form an outer space. The cylindrical structure is extended to a predetermined height , and during this work, multiple stages are
The stacked outer beams are locked one by one to
Of attached to the inner wall, then the installed inner cylinder of a predetermined inner diameter on the inside of the existing outer cylinder, forming a space beneath the said existing inner cylinder by a predetermined amount jacking up the existing inner cylinder, the The present invention is characterized in that an inner cylinder structure is extended to a predetermined height by carrying another inner cylinder into the space and connecting the inner cylinder to the existing inner cylinder.

According to a second aspect of the present invention, there is provided a method for erection of a tower-like structure, wherein an outer cylinder having a predetermined inner diameter is installed on the ground, the existing outer cylinder is jacked up by a predetermined amount, and a space is provided below the existing outer cylinder. Part is formed, another external cylinder is carried into the space part, and the external cylinder structure is extended to a predetermined height by being connected to the existing external cylinder, while the existing external cylinder is jacked up when the existing external cylinder is jacked up. It is characterized in that horizontal beams stacked in multiple stages in a cylinder are locked one by one and mounted on the inner wall of the existing outer cylinder.

[0009]

According to the first aspect of the invention, the existing outer cylinder having the roof temporarily provided on the top is jacked up by a predetermined amount, and the outer cylinder is connected below the outer cylinder to extend the outer cylinder structure to a predetermined height, and at the same time, the horizontal cylinder is horizontally extended.
Lock the beams one by one and attach them to the inner wall of the existing outer cylinder.
After, it was so as to extend the inner cylinder structure was prepared in a similar method to the inside of the existing outer cylinder to a predetermined height, each member gets rid need be lifted by a crane or the like, and, work place at a low
, Safety and work efficiency are improved,
Construction work can be performed without being affected by the weather.

In the invention of claim 2, the existing outer cylinder is jacked up by a predetermined amount, and the outer cylinder is connected below the jack to extend the outer cylinder structure to a predetermined height. By mounting the horizontal beams stacked in the inner wall of the existing outer cylinder in order ,
There is no need to lift the vehicle on a lane or the like, and the work is performed at a low place, so that safety and work efficiency are improved.

[0011]

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

FIG. 1 is a cross-sectional view for explaining a method of erection of an outer cylindrical structure in a method of erection of a tower-like structure according to one embodiment of the present invention. FIG. 2 is a plan view of the outer cylindrical structure, FIG. 4 is a cross-sectional view for explaining a method of erection of the inner cylinder structure, FIG. 4 is a plan view of the outer cylinder and the inner cylinder structure, FIG. 5 is a perspective view of a jack-up device for the outer cylinder, and FIG. 1 shows a perspective view of the device.

In this embodiment, as shown in FIGS. 3 and 4, an outer cylinder structure 15 as an exterior material is located outside the four inner cylinder structures 11, 12, 13, and 14. The construction method of the high-rise chimney 16 will be described. According to the method of erection of the high-rise chimney 16 in the present embodiment, the existing outer cylinder having the roof temporarily provided at the top is jacked up by a predetermined amount, and the outer cylinder is connected below the outer cylinder to lower the outer cylinder structure 15 to a predetermined height. At the same time as extending, the horizontal beams stacked inside when the existing outer cylinder is jacked up are attached to the inner wall of the existing outer cylinder, and then the inner cylinder structure 1 is provided inside the existing outer cylinder by the same method.
1, 12, 13, and 14 are extended to a predetermined height.

Hereinafter, a method of erection of the high-rise chimney 16 of this embodiment will be described in detail. As shown in FIGS. 1 and 2, the outer cylinder structure 15 is constructed by stacking an outer cylinder 22 formed by four divided outer cylinder blocks 21 at a predetermined height up and down. Are reinforced by a plurality of columns 23, while a horizontal beam 25 attached via a horizontal ring 24 is attached to the inner periphery and reinforced.
A roof 26 is temporarily provided on the top of the outer cylinder 22. When this outer cylinder structure 15 is constructed, the jack-up device 31 provided inside the existing outer cylinder 22a installed on the ground is used.

That is, a plurality of guide columns 32 are erected along the inner wall surface of the existing outer cylinder 22a, and each guide column 32 is supported by a support beam 33. A jack-up 34 is mounted.
As shown in FIG. 5, the telescopic jack-up 34 has a rod 36 that is telescopic with respect to the jack body 35, and an upper support box 37 is integrally formed at the upper end of the rod 36. A lower support box 38 is formed integrally with the lower end of the jack body 35. And this upper support box 3
A pair of upper pins 40 and lower pins 41 which can be inserted into and removed from a plurality of support holes 39 formed in the guide column 32 are provided in the lower support box 38 and the lower support box 38 respectively. A support base 42 is formed integrally with the lower support box 38. The support base 42 is engaged with a locking hole 44 of a locking piece 43 attached to the inner wall surface of the existing outer cylinder 22a (outer cylinder 22). Removable locking pin 4
5 are attached.

Accordingly, the upper pin 40 of the telescopic jack-up 34 is fitted into the support hole 39 of the guide post 32,
When the rod 36 is contracted by operating the retractable jack-up 34 with the second locking pin 45 locked in the locking hole 44 of the existing outer cylinder 22a, the upper pin fitted in the support hole 39 of the guide post 32 is engaged. The support table 4 below the jack body 35
2 rises and the locking piece 43 (the locking pin 45 and the locking hole 4
4), the existing outer cylinder 22a can be lifted by the stroke of the rod 36. And the existing outer cylinder 22
Guide pillar 32 facing lower pin 41 after lifting a
When the outer cylinder 22a is fitted into the support hole 39, the existing outer cylinder 22a can be held at the raised position. Next, the upper pin 40 is pulled out from the support hole 39, and the telescopic jack-up 34 is operated to extend the rod 36.
0 is fitted into the support hole 39 of the guide column 32. And
Pull out the lower pin 41 from the support hole 39 and, as described above,
By contracting the telescopic jack-up 34, the existing outer cylinder 22a can be lifted again, and by repeating this operation, the existing outer cylinder 22a can be raised to a predetermined height.

On the other hand, as shown in FIG. 3 and FIG. 4, the inner cylinder structures 11, 12, 13, and 14 have the same structure, and the inner cylinders 51 are vertically stacked at a predetermined height. Each of the inner cylinders 51 is connected by a connection fitting 52. And this inner cylinder structure 11, 1
When building 2, 13, and 14, it is performed using the jack-up device 61 provided on the beam 52 of the roof 26 erected on the top of the existing outer cylinder 22a.

That is, a telescopic jack-up 61 is attached to the beam 52 of the temporary roof 26, and the existing inner cylinder 5
The wire rope 63 to which the hanging member 62 of 1a is attached can be moved up and down. This telescopic jack-up 61
As shown in FIG. 6, the jack body 6 fixed to the beam 62
4 has a rod 65 which can be extended and retracted, and an upper clamp 66 is mounted on the upper end of the rod 65, while a lower clamp 67 and a safety device 68 are mounted on the jack body 64. A wire rope 63 is inserted into the jack body 64 and the rod 65.

Therefore, when the rod 65 is extended by operating the jack-up device 61 in a state where the wire rope 63 is clamped by operating the upper clamp 66, the upper clamp 66 of the rod 65 is raised with respect to the jack body 64. Thus, the existing inner cylinder 51a can be lifted by the stroke of the rod 65 via the wire rope 63. Then, after the existing inner cylinder 51a is lifted, the lower clamp 67 is operated to clamp the wire rope 63.
Can be held in its raised position. Next, the clamp state of the upper clamp 66 is released to contract the rod 65,
At this position, the upper clamp 66 is operated again to clamp the wire rope 63. Then, by releasing the clamp state of the lower clamp 67 and operating the jack-up device 61 to extend the rod 65 in the same manner as described above, again,
The existing inner cylinder 51a can be lifted, and by repeating this operation, the existing inner cylinder 51a can be raised to a predetermined height.

Thus, the inner cylinder structures 11, 12,
In order to build a high-rise chimney 16 composed of 13, 14 and an outer cylinder structure 15, first, as shown in FIG. 1, an outer cylinder 22 is formed by a plurality of outer cylinder blocks 21, and an existing outer cylinder 22a is placed on the ground. At the same time, the roof 26 is temporarily provided on the top of the existing outer cylinder 22a. At this time, the jack-up device 31 is provided inside the existing outer cylinder 22a, and a plurality of horizontal beams 25 are provided on the jack-up device 31 in a state of being stacked in multiple stages. Next, the existing outer cylinder 22a installed on the ground is jacked up to a predetermined height by the jack-up device 31, that is, a position slightly higher than the height of one outer cylinder 22, and the jack-up raises the existing outer cylinder 22a. A space is formed below.

Then, a new outer cylinder block 21 is carried into the formed space by a bogie (not shown) to form the outer cylinder 22 on the ground located below the existing outer cylinder 22a.
The existing outer cylinder 22a jacked up by the jack-up device 31 is lowered, positioned and placed on the outer cylinder 22, and the existing outer cylinder 22a is extended by connecting the outer cylinder 22 to the existing outer cylinder 22a. Will be established. Also, when the existing outer cylinder 22a is jacked up, it stops at a predetermined height,
The horizontal beams 25 stacked in multiple stages are mounted on the inner wall of the outer cylinder 22 by the horizontal ring 24. Therefore, the outer cylinder structure 15 is extended to a predetermined height by repeating this step.

When the outer cylindrical structure 15 is built to a predetermined height, the inner cylindrical structures 11, 12, 13, 14 are built inside. First, as shown in FIG. 3, the inner cylinder 51 (the existing outer cylinder 22a) is installed at a predetermined position inside the existing outer cylinder 51a.
Next, the existing inner cylinder 51a installed on the ground is jacked up to a predetermined height by the jack-up device 61, that is, a position slightly higher than the height of one inner cylinder 51, and the jack-up raises the existing inner cylinder 51a. A space is formed below.

Then, a new inner cylinder 51 is carried into the formed space by a bogie, and the inner cylinder 51 is placed on the ground located below the existing inner cylinder 51a, and is jacked up by the jack-up device 61. The existing inner cylinder 51a is lowered, positioned and mounted on the inner cylinder 51,
2 is connected to the existing inner cylinder 51a,
a is extended. Therefore, the inner cylinder structure 11 is extended to a predetermined height by repeating this process, and the inner cylinder structures 12, 13, and 14 are sequentially constructed.

In the above-described embodiment, the inner cylindrical structures 11, 12, 13, and 14 were sequentially constructed. However, by providing a plurality of jack-up devices 61 on the temporary roof 26, It is also possible to build the inner cylinder structures 11, 12, 13, 14 in parallel at the same time.

[0025]

As described above in detail with reference to the embodiments, according to the method for erection of a tower-like structure according to the first aspect of the present invention,
Install an existing outer cylinder with a temporary roof on the top, jack up the existing outer cylinder by a predetermined amount, connect the outer cylinder below it, extend the outer cylinder structure to a predetermined height, and at the same time
The horizontal beams stacked in multiple stages in the outer cylinder are locked one by one.
To the inner wall of the existing outer cylinder, and then install the existing inner cylinder inside the existing outer cylinder, jack up the existing inner cylinder by a predetermined amount, and connect the inner cylinder below it to form the inner cylinder structure. Since the object is extended to a predetermined height, there is no need to use a crane, etc., and lifting work of members is not required, and work is done at low places, safety and work
Efficiency can be improved, and erection work can be performed irrespective of the weather, and work efficiency can be improved.

Further, according to the method of erection of the tower-like structure according to the second aspect of the present invention, the existing outer cylinder is installed, the existing outer cylinder is jacked up by a predetermined amount, and the outer cylinder is connected below it. while extending the outer cylinder structure to a predetermined height, since the horizontal beams stacked in existing outer tube at the time of the jack-up sequentially attached to the inner wall of the existing outer cylinder, clay
No need to use components, etc.
It becomes, Ri Do those of at work is low, safety line
Work efficiency can be improved .

[Brief description of the drawings]

FIG. 1 is a cross-sectional view for explaining a method of erection of an outer tubular structure in a method of erection of a tower-like structure according to one embodiment of the present invention.

FIG. 2 is a plan view of the outer cylinder structure.

FIG. 3 is a cross-sectional view for explaining a method of erection of the inner cylinder structure.

FIG. 4 is a plan view of an outer cylinder and an inner cylinder structure.

FIG. 5 is a perspective view of a jack-up device for the outer cylinder.

FIG. 6 is a perspective view of a jack-up device for the inner cylinder.

FIG. 7 is a schematic configuration diagram of a conventional method of erection of a tower-like structure for erection of a high-rise chimney with an exterior plate.

[Explanation of symbols]

 11, 12, 13, 14 Inner tube structure 15 Outer tube structure 16 High-rise chimney (tower structure) 22 Outer tube 22a Existing outer tube 25 Horizontal beam 26 Roof 31, 61 Jack-up device 51 Inner tube 51a Existing inner tube

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-62-182371 (JP, A) JP-A-59-124265 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04H 12/28 E04H 12/34

Claims (2)

(57) [Claims] 1. An outer cylinder having a predetermined inner diameter is installed on the ground, a roof is temporarily installed on the top of the outer cylinder, and the existing outer cylinder is jacked up by a predetermined amount to form a space below the existing outer cylinder. ,
And carrying another outer tube to the space portion to extend the outer cylinder structure by connecting to the existing outer cylinder to a predetermined height, when this work
Horizontal beams stacked in multiple stages in the existing outer cylinder one by one
Locked and attached to the inner wall of the existing outer cylinder, then installed an inner cylinder of a predetermined inner diameter inside the existing outer cylinder, jacked up the existing inner cylinder by a predetermined amount, and A space portion is formed in the space portion, and another inner tube is carried into the space portion and connected to the existing inner tube, thereby extending the inner tube structure to a predetermined height. Construction method. 2. An outer cylinder having a predetermined inner diameter is installed on the ground, the existing outer cylinder is jacked up by a predetermined amount to form a space below the existing outer cylinder, and another outer cylinder is carried into the space. The external cylinder structure is extended to a predetermined height by being connected to the existing external cylinder, and at the time of jacking up the existing external cylinder, the horizontal beams stacked in multiple stages in the existing external cylinder are connected one by one. A method for erection of a tower-like structure, which is stopped and attached to the inner wall of the existing outer cylinder.