JP2906050B1 - Construction method of tower structure - Google Patents

Abstract

A method for constructing a tower-like structure by moving an inner formwork and an outer formwork by a single climbing unit is provided. SOLUTION: A climbing unit 4 is located between an internal scaffold unit 3 and an external scaffold unit 6 that can be moved up and down along a tower mast 2, and the external scaffold unit 6 is pushed up by the climbing unit 4 to form an outer formwork 8. After the movement, the internal scaffold unit 3 is lifted by the climbing unit 4 to move the inner frame 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a climbing unit having an elevating mechanism capable of moving up and down along a tower mast, in which an external scaffold unit and an internal scaffold unit are moved to connect an outer wall in the construction direction of a tower-like structure. By sequentially moving the inner formwork and the outer formwork,
The present invention relates to a method for constructing a tower structure having a required height.

[0002]

2. Description of the Related Art Conventionally, as a method of constructing a tower-like structure such as a chimney having a hollow inside, a tower mast is erected, and an external scaffold unit that can move up and down along the tower mast and an internal scaffold unit. , A climbing unit with an elevating mechanism that can move up and down along the tower mast is provided, and the internal scaffolding unit and the external scaffolding unit are simultaneously moved up and down by this climbing unit. After placing and curing concrete between the inner scaffold unit and the inner formwork constructed on the internal scaffold unit to form the outer wall of the tower-like structure, raise the climbing unit and connect the outer wall to the upper end of the existing outer wall. A method has been used in which a tower-like structure having a required height is constructed by moving an inner mold frame and an outer mold frame so that they can be installed.

[0003]

However, in the conventional construction method as described above, since the external scaffold and the internal scaffold always move together, the external scaffold unit and the internal scaffold unit are not connected. They were always facing each other, and the working efficiency was not always good.

For example, when forming an opening in the outer wall of a tower-like structure, precast concrete or the like having an opening formed therein is prepared in advance as an embedding part, and this is used as an outer mold and an inner mold. It is a method of casting concrete while fixing it between the two, but such embedding parts were arranged by estimating the rising position of both formwork before raising both formwork Later, when both formwork are raised, the embedding parts are not arranged at the expected positions in both formworks.For example, the precast concrete for opening arranged with reference to the inner surface of the outer formwork has the outer surface. Concrete adheres to the inner surface of the inner formwork to impair the appearance, and the metal plate holding member disposed on the basis of the outer surface of the inner mold is buried in the concrete and becomes invisible, so that subsequent work becomes difficult.

On the other hand, it is desirable that the external scaffolding unit and the internal scaffolding unit be individually lifted and lowered independently. However, if separate climbing units are provided for the external scaffolding unit and the internal scaffolding unit, the cost increases. In addition, a large occupied space is required, and both climbing units must be driven alternately, for example, by an appropriate distance, so that the operation is rather complicated.

[0006]

According to a first aspect of the present invention, there is provided a method for constructing a tower-like structure, the method comprising the steps of: The outer formwork (8) is constructed from the external scaffold unit (6) which can be moved up and down, and the inner formwork (9) is constructed from the internal scaffold unit (3) which can be moved up and down along the tower mast (2). A concrete is poured and cured between the formwork (8, 9) to form an outer wall (7) of the tower-like structure, and an elevating mechanism (5) is provided which can move up and down along the tower mast (2). The external scaffolding unit (6) and the internal scaffolding unit (3) are moved by the climbing unit (4) provided between the external scaffolding unit (6) and the internal scaffolding unit (3) to construct the tower-like structure. The inner formwork (9) and the outer wall (7) In the method for constructing a tower-like structure for constructing a tower-like structure having a required height by sequentially moving the formwork (8), a method for constructing a tower-like structure between an external scaffold unit (6) and an internal scaffold unit (3) is provided. With the single climbing unit (4) that can freely move up and down, the external scaffolding unit (6) is pushed up along the tower mast (2),
By pulling up the internal scaffold unit (3) along the tower mast (2), the external scaffold unit (6), the outer formwork (8), the internal scaffold unit (3) and the inner formwork (9) are moved. I did it.

According to a second aspect of the present invention, in the method for constructing a tower-like structure according to the first aspect, the climbing unit moves the external scaffolding unit and the outer formwork by the climbing unit. Moved the internal scaffolding unit to build the inner formwork.

According to a third aspect of the present invention, in the method for constructing a tower-like structure according to the first aspect, the climbing unit moves the internal scaffolding unit and the inner formwork by the climbing unit. To move the external scaffolding unit to construct the external formwork.

According to a fourth aspect of the present invention, in the method for constructing a tower-like structure according to any one of the first to third aspects, the buried parts to be embedded in the outer wall of the tower-like structure are firstly used. Then, the other mold was moved to form the outer wall of the tower-like structure.

[0010] Therefore, according to the method for constructing a tower-like structure according to the first aspect, the external scaffold unit can be attached to the tower mast by a single climbing unit that can freely move up and down between the external scaffold unit and the internal scaffold unit. The external scaffold unit and the internal scaffold unit can be moved by pushing up along the tower and raising the internal scaffold unit along the tower mast.

In the method for constructing a tower-like structure according to the first aspect of the present invention, after the outer scaffold unit and the outer formwork are moved by the climbing unit, the inner scaffold unit and the inner formwork are moved by the climbing unit. According to the method for constructing a tower-like structure according to the second aspect, the outer formwork can be preferentially constructed and the dimensions can be adjusted.

In the method for constructing a tower-like structure according to the first aspect of the present invention, after the internal scaffold unit and the inner formwork are moved by the climbing unit, the external scaffold unit and the outer formwork are moved by the climbing unit. According to the construction method of the tower-like structure according to the third aspect, the inner mold can be preferentially constructed and the dimensions can be adjusted.

[0013] In the method for constructing a tower-like structure according to any one of claims 1 to 3, the embedding parts to be embedded in the outer wall of the tower-like structure are fixed to the formerly moved formwork, and thereafter the other part is fixed. According to the method for constructing a tower-like structure according to claim 4, wherein the formwork is moved to form the outer wall of the tower-like structure, the buried part is formed based on the formerly moved formwork. Installation can be performed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a method for constructing a tower-like structure according to the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, a base 1 is installed at a construction site of a tower-like structure, and a tower mast 2 is mounted on an upper surface of the base 1.
Is attached with bolts. The tower mast 2 can have a length necessary for constructing a tower-like structure having a required height by appropriately adding the tower-like structure in the construction direction (vertical direction) of the tower-like structure.

The internal scaffold unit 3 which can be moved up and down along the tower mast 2 is mounted on an internal scaffold mounting frame 3a which is loosely fitted to the tower mast 2 by, for example, a three-stage internal scaffold 3.
b, 3b, 3b. The internal scaffold mounting frame 3a is provided with a stopper mechanism (not shown). By functioning the stopper mechanism, the internal scaffold unit 3 can be fixed at an appropriate position on the tower mast 2 and the stopper mechanism is released. This allows the internal scaffolding unit 3 to move along the tower mast 2. At this time, the internal scaffold mounting frame 3a
It is desirable to provide a sliding resistance reducing means such as a guide roller for reducing the sliding resistance between the shaft and the tower mast 2. Each internal scaffold 3b is provided with a frame-like handrail on a scaffold base serving as a base.

It is located above the internal scaffolding unit 3,
The climbing unit 4 that can move up and down along the tower mast 2 is a climbing frame 4a that is loosely fitted to the tower mast 2 and is provided with, for example, two-stage landings 4b and 4b and a lifting mechanism 5. Thereby, the climbing unit 4 can freely move up and down along the tower mast 2. It is desirable to provide a suitable sliding resistance reducing means between the climbing frame 4a and the tower mast 2. In addition, each landing 4b
Is provided with a frame-shaped handrail on a landing base serving as a base.

The external scaffold unit 6 which is located above the climbing unit 4 and can be moved up and down along the tower mast 2 has an external scaffold mounting beam 6b mounted on an external scaffold mounting frame 6a which is loosely fitted on the tower mast 2. External scaffolds 6c, 6c are attached to the external scaffold attachment beam 6b. And the external scaffold mounting frame 6a
Is provided with a stopper mechanism which is not shown in the drawings. By functioning this stopper mechanism, the external scaffolding unit 6 can be fixed at an appropriate position on the tower mast 2, and
By releasing the stopper mechanism, the external scaffold unit 6 can move up and down along the tower mast 2. At this time, it is desirable to provide a suitable sliding resistance reducing means between the external scaffold mounting frame 6a and the tower mast 2. Further, a landing may be formed on the upper part of the external scaffold mounting frame 6a of the external scaffolding unit 6 to make it easier to add the tower mast 2.

Although not shown in FIG. 1,
The external scaffolds 6c are appropriately arranged according to the cross-sectional shape of the tower-like building to be constructed. For example, when constructing a building having a substantially square cross-section, each of the four sides of the internal scaffold 3b of the internal scaffolding unit 2 is provided. By providing four external scaffolds 6c opposed to each other, an inner mold and an outer mold are formed, concrete is poured into the mold, and the outer wall 7 is formed by curing, thereby forming a square pillar-shaped structure. Build it.

The elevating mechanism 5 of the climbing unit 4 described above is as shown in FIG. 2, and is adapted to a climbing guide frame 51 fixed to the climbing frame 4a that moves up and down along the vertical member 2a of the tower mast 2. Hydraulic motor 52, main cylinder 53 expanded and contracted by hydraulic motor 52, climbing slider 54 attached to an end of main cylinder 53, upper pin 55 a
Is provided with an upper sub-cylinder 55 for pushing out and catching back on the cross member 2b of the tower mast 2 so as not to be caught. The climbing slider 54 is, for example, a plate-like climbing guide 5.
A pair of upper guide rollers 54 for holding the sheet 1a from both sides
a, 54a, a pair of lower guide rollers 54b, 54b positioned appropriately below the upper guide roller 54a, and a lower pin 56a are pushed out of the cross member 2b of the tower mast 2 and pulled back so as not to be caught. A lower sub-cylinder 56 is provided.

Next, the lifting operation by the lifting mechanism 5 will be described.
You. Here, as an initial state, the upper sub
The upper pin 55a of the cylinder 55 is the cross member of the tower mast 2.
2b ₁Climbing unit 3
The lower pin 5 of the lower sub cylinder 56 is fixed to the
6 is horizontal material 2b_ThreeIs located slightly above
(See FIG. 2).

[0022] First, the hydraulic motor 52 is extended the main cylinder 53 lower pin 56 of the lower sub-cylinder 56 is brought into contact with the crosspiece 2b ₃ of the tower mast 2, upper pin 55a of the upper sub-cylinder 55 is crosspiece 2b _After slightly separating from the position _1, the upper pin 55 a of the upper sub cylinder 55 is pulled back and the main cylinder 53 is further extended by the hydraulic motor 52, and the lower pin 56 a of the lower sub cylinder 56 of the climbing slider 54 is moved sideways. to the timber 2b ₃ abuts climbing slider 54 will be fixed to the position (see FIG. 3 (a)), climbing guide frame 51 rises. At this time, the climbing guide 51a is guided by the pair of upper and lower guide rollers 54a and 54b and is smoothly sent upward, so that the climbing guide frame 51 rises smoothly.

The climbing guide frame 51
Rises to a predetermined height, and the horizontal member 2b _{1 of the} tower mast 2
Located appropriately above the (see FIG. 3 (b)) in the crosspiece 2b ₂ to reach the upper pin 55a is caught position of the upper sub-cylinder 55, is protruded to the upper pin 55a of the upper sub-cylinder 55, hydraulic motor 52 by contracting the main cylinder 53 is the upper pin 55a abuts against the crosspiece 2b ₂ by, after the state slightly away lower pin 56a from the crosspiece 2b _3, when pulled back lower pin 56a of the lower cylinder 56, climbing The guide frame 51 is fixed at the position.

When the main cylinder 53 is further contracted in this state, the climbing slider 54 is moved to the cross member 2b ₄ located above the cross member 2b ₃ of the tower mast 2 as appropriate.
Since the lower pin 56a of the lower sub-cylinder 56 rises to a position where the lower pin 56a is hooked, the lowering pin 56a of the lower sub-cylinder 56 is protruded, so that the lifting mechanism 5 returns to the initial state. Thus, the elevating mechanism 5 has been appropriately moved up along the tower mast 2. When the elevating mechanism 5 is further raised, the above-described series of operations of raising and fixing the climbing guide frame 51 and raising the climbing slider 54 may be repeated.

On the other hand, when lowering the elevating mechanism 5, the reverse of the raising operation may be performed. That is, with the climbing guide frame 51 fixed to the tower mast 2, the climbing slider 54 is pushed down, and with the climbing slider 54 fixed to the tower mast 2, the climbing guide frame 51 is pulled down.

Next, the internal scaffold unit 3 as described above,
A method of constructing a tower-like structure by appropriately raising and lowering the climbing unit 4 and the external scaffold unit 6 along the tower mast 2 will be specifically described.

FIGS. 4 to 6 show a method in which the outer formwork is preferentially constructed when forming the outer wall of the tower-like structure.

In FIG. 4, concrete is cast between an outer formwork 8 constructed from the outer scaffold unit 6 and an inner formwork 9 constructed from the inner scaffold unit 3 to form the outer wall 7 to an appropriate height. State. Here, the climbing unit 4 appropriately pushes up the external scaffolding unit 6 to fix the external scaffolding unit 6 at that position, and moves the outer formwork 8 so as to be continuous with the upper end of the outer wall 7 (see FIG. 5). Then
The climbing unit 4 is temporarily lowered to a position directly above the internal scaffolding unit 3, and the climbing unit 4 and the internal scaffolding unit 3 are fixed by an appropriate fixing means. The internal scaffolding unit 3 is fixed at that position by being appropriately lifted upward, and the inner frame 9 is moved so as to continue to the upper end of the outer wall 7 (see FIG. 6).

An appropriate reinforcing arrangement is provided between the outer formwork 8 and the inner formwork 9 and concrete is poured into and cured in the formworks 8 and 9, and then the outer formwork 8 and If the inner mold 9 is raised, the outer wall 7 can be continuously provided. Hereinafter, similarly, the outer scaffold unit 6 is first raised and the outer formwork 8 is moved, and then the inner scaffold unit 3 is raised and the inner formwork 9 is moved.
The outer wall 7 can be formed to a required height by moving and moving the concrete and curing the concrete.

As described above, the case where the outer mold frame 8 is preferentially moved is suitable for constructing a tower-like structure based on the dimensions of the outer surface of the outer wall 7. Further, when an opening is formed in the outer wall 7, the embedding part such as precast concrete having the opening formed therein can be adjusted to be flush with the outer surface of the outer wall 7 and attached to the outer formwork 8. Therefore, the appearance of the outer wall 7 can be improved.

On the other hand, FIGS. 7 to 9 show a method in which the inner mold is preferentially constructed when forming the outer wall of the tower-like structure.

FIG. 7 shows a case where concrete is cast between an inner form 9 constructed from the inner scaffold unit 3 and an outer form 8 constructed from the outer scaffold unit 6 to form the outer wall 7 to an appropriate height. State. Here, the climbing unit 4 located immediately above the internal scaffolding unit 3 is fixed to the internal scaffolding unit 3 by appropriate fixing means, and when the climbing unit 4 rises in this state, the internal scaffolding unit 3 is appropriately lifted upward. Then, the inner scaffold unit 3 is fixed in this position, and the inner form 9 is connected to the upper end of the outer wall 7.
Is moved (see FIG. 8). Next, the climbing unit 4 appropriately pushes the external scaffold unit 6 upward,
The external scaffold unit 6 is fixed at the position, and the outer formwork 8 is moved so as to be continuous with the upper end of the outer wall 7 (see FIG. 9).

It should be noted that appropriate reinforcement is provided between the outer formwork 8 and the inner formwork 9, and after concrete is poured into and cured in both formworks 8 and 9, If the inner mold 9 is raised, the outer wall 7 can be continuously provided. Hereinafter, in the same manner, the internal scaffold unit 3 is first raised and the inner formwork 9 is moved, and then the external scaffold unit 6 is raised to form the outer formwork 8.
The outer wall 7 can be formed to a required height by moving and moving the concrete and curing the concrete.

As described above, the case where the inner frame 9 is preferentially moved is suitable for constructing a tower-like structure based on the size of the inner surface of the outer wall 7. When a stage is provided inside the outer wall 7, a plate or the like for holding the stage can be embedded by accurate dimension adjustment on the inner surface side of the outer wall 7, thereby improving the holding state of the stage. Can be.

[0035]

As described above, according to the construction method of the tower-like structure according to the first aspect, the single climbing unit that can freely move up and down between the external scaffolding unit and the internal scaffolding unit is used. The external and internal scaffolding units can be moved by pushing up the scaffolding unit along the tower mast and raising the internal scaffolding unit along the tower mast. One of the scaffold units is moved first, and the formwork is also moved.

In the method for constructing a tower-like structure according to the first aspect of the present invention, after the outer scaffold unit and the outer formwork are moved by the climbing unit, the inner scaffold unit and the inner formwork are moved by the climbing unit. According to the construction method of the tower-like structure according to claim 2, since the outer formwork can be preferentially constructed and the dimensions can be adjusted, the outer wall of the tower-like structure is formed based on the outer formwork. It is suitable in the case of going.

In the method for constructing a tower-like structure according to the first aspect, after the internal scaffold unit and the inner formwork are moved by the climbing unit, the external scaffold unit and the outer formwork are moved by the climbing unit. According to the construction method of the tower-like structure according to the third aspect, since the inner mold can be preferentially constructed and the dimensions can be adjusted, the outer wall of the tower-like structure is formed on the basis of the inner mold. It is suitable in the case of going.

In the method for constructing a tower-like structure according to any one of claims 1 to 3, the embedding parts to be embedded in the outer wall of the tower-like structure are fixed to the outer or inner mold that has been moved earlier. Then, according to the method for constructing a tower-like structure according to claim 4, wherein the other form is moved to form the outer wall of the tower-like structure, Since the embedding parts can be mounted on the basis of the inner formwork, the work of mounting the embedding parts on the formwork can be efficiently performed.

[Brief description of the drawings]

FIG. 1 is an external view of an external scaffold unit, an internal scaffold unit, and a climbing unit that move up and down along a tower mast.

FIG. 2 is a schematic external view of an elevating mechanism provided in the climbing unit.

FIG. 3 is an explanatory view of a lifting operation of a lifting mechanism.

FIG. 4 is a simplified external view of an external scaffold unit, an internal scaffold unit, and a climbing unit showing an initial state when an external formwork is preferentially constructed.

FIG. 5 is a simplified external view of an external scaffold unit, an internal scaffold unit, and a climbing unit showing an elevated state of an external scaffold unit when the external formwork is constructed with priority.

FIG. 6 is a simplified external view of an external scaffold unit, an internal scaffold unit, and a climbing unit showing an internal scaffold unit ascending state when the external formwork is preferentially constructed.

FIG. 7 is a simplified external view of an external scaffolding unit, an internal scaffolding unit, and a climbing unit showing an initial state when an inner formwork is constructed with priority.

FIG. 8 is a simplified external view of an external scaffold unit, an internal scaffold unit, and a climbing unit showing an internal scaffold unit ascending state when the internal formwork is preferentially constructed.

FIG. 9 is a simplified external view of an external scaffold unit, an internal scaffold unit, and a climbing unit showing an external scaffold unit ascending state when the internal scaffold is preferentially constructed.

[Explanation of symbols]

 2 Tower mast 3 Internal scaffolding unit 4 Climbing unit 5 Elevating mechanism 6 External scaffolding unit 7 Outer wall 8 Outer formwork 9 Inner formwork

Claims (4)

(57) [Claims] 1. An outer formwork is constructed from an external scaffolding unit that can move up and down along a tower mast erected in a construction direction of a tower-like structure, and an inner formwork is constructed from an internal scaffolding unit that can move up and down along the tower mast. Constructing a formwork, placing and curing concrete between both forms to form the outer wall of the tower-like structure, including an elevating mechanism that can move up and down along the tower mast, and an external scaffold unit and an internal scaffold unit By moving the external scaffolding unit and the internal scaffolding unit by the climbing unit provided between and the inner formwork and the outer formwork are sequentially moved so that the outer wall is continuous in the construction direction of the tower-like structure, In the method of constructing a tower structure having a required height, a single climbing unit capable of freely moving up and down between an external scaffold unit and an internal scaffold unit is provided. By pushing up the external scaffold unit along the tower mast and raising the internal scaffold unit along the tower mast, the external scaffold unit, the outer formwork, the internal scaffold unit and the inner formwork are moved. A method for constructing a tower-like structure, characterized in that: 2. The tower according to claim 1, wherein the internal scaffold unit and the internal formwork are moved by the climbing unit after the external scaffold unit and the external formwork are moved by the climbing unit. How to build the structure. 3. The tower according to claim 1, wherein the outer scaffold unit and the outer formwork are moved by the climbing unit after the inner scaffold unit and the inner formwork are moved by the climbing unit. How to build the structure. 4. An embedding part to be embedded in the outer wall of the tower-like structure is fixed to the formerly moved formwork, and then the other formwork is moved to form the outer wall of the tower-like structure. The method for constructing a tower-like structure according to any one of claims 1 to 3, wherein: