Formwork installation method

Abstract

To provide a method for installing formwork in the structural work of a building, which reduces the labor required for formwork installation and allows for installation in a short amount of time. [Solution] The method for installing formwork in the structural work of a building 30 comprises a formwork alignment step, a large formwork formation step, and a suspension installation step. In the formwork alignment step, multiple rectangular formwork panels 11 are lined up at the construction site of the building 30 with their longitudinal directions adjacent to each other. In the large formwork formation step, the multiple lined-up formwork panels 11 are assembled to connecting rods 12 extending in the short direction of the formwork panels 11 via connecting parts, thereby forming a large formwork 10 as a single unit. In the suspension installation step, the large formwork 10 is suspended by wires 21 of a crane 20 and moved to the location that will become the wall of the building 30 and installed.

Description

Technical Field

[0001] The present invention relates to a formwork installation method in the construction work of a building structure.

Background Art

[0002] Conventionally, when constructing a concrete wall or the like of a building, a formwork is installed and fixed, steel bars are arranged therein, and concrete is poured to construct a so-called reinforced concrete wall. As a method of installing such a formwork, the technique of Patent Document 1 is known.

[0003] The technique of Patent Document 1 arranges and connects formwork plates each consisting of a vertically long rectangular thin plate adjacent to each other one by one at the position of the wall at the installation location of the building, and connects the whole to a steel pipe (connecting rod) to install the formwork.

[0004] However, in the technique of Patent Document 1, it is necessary to assemble the formwork by installing one by one the formwork plates divided into a plurality of sheets at the position of the wall at the installation location of the building. Since a plurality of formwork plates are installed respectively, time and labor are required.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] In view of the above points, the present invention is a formwork installation method in the construction work of a building structure, and an object thereof is to provide a formwork installation method capable of reducing the labor for installing the formwork and installing it in a short time.

Means for Solving the Problems

[0007] According to an embodiment of the present invention, there is provided a formwork installation method in the construction work of a building structure, A frame alignment step is performed in which multiple rectangular frame boards are arranged in adjacent positions along their longitudinal directions at the site where the aforementioned building is to be constructed. A large-format formwork forming process involves assembling multiple frame plates arranged in a row onto connecting rods extending in the short direction of the frame plates via connecting parts, thereby forming a large-format formwork as a single unit; The method is characterized by comprising a suspension installation process, in which the large formwork is suspended by a crane wire and moved to a location that will become the wall of the building and installed.

[0008] This configuration includes a frame alignment step in which multiple rectangular frame boards are arranged adjacent to each other in the longitudinal direction at the construction site of the building, and a large-format formwork formation step in which the multiple frame boards are assembled together with connecting rods extending in the transverse direction of the frame boards via connecting parts, thereby forming a large-format formwork as a single unit. As a result, large-format formwork of any size can be easily formed at the construction site of the building. Furthermore, as a suspension installation step is included in which the large-format formwork is suspended by a crane wire and moved to the location that will become the wall of the building and installed, large-format formwork with a large area can be easily installed, reducing the labor required for formwork installation in the structural work of the building and providing a formwork installation method that can be installed in a short time.

[0009] Preferably, the suspension installation step involves suspending the large formwork by securing the wire at two or more points with spacing between them in the width direction.

[0010] With this configuration, since the large formwork is long in the width direction, it is susceptible to wind during outdoor work and difficult to install quickly and accurately in the correct position. However, in the suspension installation process, the large formwork is suspended by attaching wires at two or more points with intervals in the width direction of the formwork, so the width direction of the large formwork can be stably held, reducing the swaying of the large formwork due to wind, reducing the labor required for formwork installation, and providing a formwork installation method that can be installed in a short time.

[0011] Preferably, the suspension installation step involves securing the wire above the vertical center of the large formwork, and securing two ropes below the vertical center of the large formwork, spaced apart in the width direction, with each rope held by a worker on the ground.

[0012] With this configuration, since the large formwork is long in the width direction, it is susceptible to wind during outdoor work and difficult to install quickly and accurately in the correct position. However, in the suspension installation process, a wire is secured above the vertical center of the large formwork, and two ropes are secured below the vertical center of the large formwork, spaced apart in the width direction, and each rope is held by a worker on the ground. By pulling each rope vertically, the swaying of the large formwork in the front-to-back direction is reduced, and further, the swaying of the large formwork in the left-to-right direction, twisting direction, and flapping direction caused by wind is reduced, thereby reducing the labor required for formwork installation and providing a formwork installation method that can be installed in a short time.

[0013] Preferably, the large-format formwork formation process involves providing connecting rods to the upper and lower parts of the large-format formwork, The suspension installation process involves securing the wire to the connecting rod at the top of the large formwork and securing the rope to the connecting rod at the bottom of the large formwork.

[0014] With this configuration, while rod-shaped objects such as connecting rods can be easily connected by directly tying them with string-like objects or by using connecting members such as hooks, the large-format formwork formation process involves providing connecting rods at both the top and bottom of the large-format formwork, and the suspension installation process involves securing the wire to the connecting rod at the top of the large-format formwork and the rope to the connecting rod at the bottom of the large-format formwork. This allows for easy connection of string-like wires and ropes to the connecting rods, thereby improving work efficiency.

[0015] Preferably, the large-format formwork formation process is carried out in such a way that the width of the large-format formwork is greater than the height.

[0016] According to such a configuration, in the large-sized formwork forming process, since the formwork is assembled so that the length in the width direction is larger than the length in the height direction of the large-sized formwork, the large-sized formwork can be enlarged, and a large-sized formwork with a large area can be installed in one installation operation, improving the working efficiency.

Effect of the Invention

[0017] Provided is a formwork installation method in the frame construction of a building, which can reduce the labor of formwork installation and enable formwork installation in a short time.

Brief Description of the Drawings

[0018] [Figure 1] It is a diagram for explaining the formwork installation method according to the comparative example. [Figure 2] FIG. 2(A) is a diagram for explaining the formwork panel and the formwork panel alignment process according to the embodiment. FIG. 2(B) is a diagram for explaining the large-sized formwork and the large-sized formwork forming process according to the embodiment. FIG. 2(C) is a diagram for explaining the suspension installation process according to the embodiment. [Figure 3] It is a diagram for explaining the formwork panel alignment process and the large-sized formwork forming process at a site where a building according to the embodiment is located. [Figure 4] It is a diagram for explaining the suspension installation process at a site where a building according to the embodiment is located. [Figure 5] FIG. 5(A) is an operation diagram of the formwork installation method according to the comparative example. FIG. 5(B) is an operation diagram of the formwork installation method according to the embodiment.

Mode for Carrying Out the Invention

[0019] Embodiments of the present invention will be described below based on the accompanying drawings. Note that the drawings conceptually (schematically) show a building and a large-sized formwork.

Example

[0020] The formwork installation method of the comparative example will be described. As shown in Figure 1, in the comparative example's formwork installation method, rectangular formwork panels 101a, 101b, 101c, etc. are suspended from the wire 103 of the crane 102, and workers 104 on the ground or on the lift 105 install the formwork panels 101a, 101b, 101c, etc. one by one along the wall of the building 100. For this reason, the comparative example's formwork installation method requires a great deal of effort to install the formwork, and the installation time is also long.

[0021] Next, the method for setting up the formwork in the embodiment will be described. As shown in Figures 2 to 4, the formwork installation method for the structural work of building 30 comprises a formwork alignment step, a large-format formwork formation step, and a suspension installation step.

[0022] As shown in Figures 2(A) and 3, the frame plates 11 (11a, 11b, 11c, 11d, 11e) used in the frame plate alignment process are rectangular in front view, and their thickness varies depending on the material, but falls within the range of several millimeters to several centimeters, which is called a plate material. The material can be metal, wood, resin, etc.

[0023] In the frame plate alignment process, multiple rectangular frame plates 11 (11a, 11b, 11c, 11d, 11e) are arranged in a line at the site where the building 30 will be constructed, with their longitudinal sides adjacent to each other.

[0024] As shown in Figures 2(B) and 3, the large-format formwork formation process involves assembling multiple frame plates 11 (11a, 11b, 11c, 11d, 11e) arranged in a row via connecting rods 12 extending in the short direction of the frame plates 11 (11a, 11b, 11c, 11d, 11e) through connecting parts 13 to form a large-format formwork 10.

[0025] Furthermore, in the large-format formwork formation process, connecting rods 12 are provided at the upper and lower parts of the large-format formwork 10, and these are assembled via connecting parts 13. The connecting parts can be any common mechanical parts such as screws, bolts, nuts, or connecting fittings.

[0026] Furthermore, in the large-format formwork formation process, the large-format formwork 10 is assembled so that its width is greater than its height. In this embodiment, the large-format formwork 10 was assembled so that its width is greater than its height, but this is not limited to this. It may also be assembled so that its width is equal to its height, or even so that its width is less than its height.

[0027] As shown in Figures 2(C) and 4, the suspension installation process involves suspending the large formwork 10 by wires 21 from a crane 20 and moving it to the location that will become the wall of the building 30 for installation. In the suspension installation process, the large formwork 10 is suspended by securing the wires 21 at two or more points with spacing between them in the width direction.

[0028] In the suspension installation process, the wire 21 is secured above the vertical center of the large formwork 10, and two ropes 22 are secured below the vertical center of the large formwork 10, spaced apart in the width direction, with workers 25 on the ground 32 holding each rope. Alternatively, workers 25 on the lift 31 may assist in the installation by holding the large formwork 10.

[0029] Furthermore, in the suspension installation process, the wire 21 is secured to the upper connecting rod 12 of the large formwork 10 via the locking part 21a, and the rope 22 is secured to the lower connecting rod 12 of the large formwork 10 via the locking part 22a.

[0030] Next, we will explain the operation of the formwork installation method in the comparative example and the formwork installation method in the embodiment. Figure 5(A) is a diagram illustrating the operation of the formwork installation method for the comparative example. In the comparative example's formwork installation method, formwork boards 101a, 101b, 101c, etc. are installed one by one along the wall of the building, which requires a great deal of effort and takes a long time to install the formwork.

[0031] Figure 5(B) is a diagram showing the operation of the formwork installation method according to the embodiment. In the formwork installation method of the embodiment, the formwork installation method comprises a frame plate alignment step, a large formwork formation step, and a suspension installation step. Since a large formwork 10 that has been pre-assembled and integrated is installed, a formwork installation of a large area can be achieved in a single installation, reducing the labor required for installation and enabling installation in a short time.

[0032] Next, the effects of the formwork installation method described above will be explained. In this embodiment of the present invention, the invention includes a frame plate alignment step in which multiple rectangular frame plates 11 (11a, 11b, 11c, 11d, 11e) are arranged in adjacent positions along their longitudinal directions at the site where the building 30 is to be constructed, and a large-format formwork formation step in which the multiple frame plates 11 (11a, 11b, 11c, 11d, 11e) are assembled to connecting rods 12 extending in the short direction of the frame plates 11 (11a, 11b, 11c, 11d, 11e) via connecting parts 13, thereby forming a large-format formwork as a single unit. As a result, a large-format formwork of any size can be easily formed at the construction site of the building 30. Furthermore, since the system includes a suspension installation process in which the large formwork 10 is suspended by the wire 21 of the crane 20 and moved to the location that will become the wall of the building 30, the large formwork 10 with a large surface area can be easily installed, reducing the labor required for formwork installation in the structural work of the building 30 and providing a formwork installation method that can be installed in a short time.

[0033] Furthermore, because the large formwork 10 is long in the width direction, it is susceptible to wind during outdoor work, making it difficult to install it quickly and accurately in the correct position. However, in the suspension installation process, the large formwork 10 is suspended by attaching the wires 21 at two or more points with spacing in the width direction of the large formwork 10, thereby stably holding the large formwork 10 in the width direction. This reduces the swaying of the large formwork 10 due to wind, reduces the labor required for formwork installation, and provides a formwork installation method that can be installed in a short time.

[0034] Furthermore, because the large formwork 10 is long in the width direction, it is susceptible to wind during outdoor work, making it difficult to install it quickly and accurately in the correct position. However, in the suspension installation process, the wire 21 is secured above the vertical center of the large formwork 10, and two ropes 22 are secured below the vertical center of the large formwork 10 at intervals in the width direction, with each rope 22 held by a worker 25 on the ground. By pulling each rope in the vertical direction, the swaying of the large formwork 10 in the front-to-back direction is reduced, and the swaying of the large formwork 10 in the left-to-right direction, twisting direction, and flapping direction due to wind is also reduced, thereby reducing the labor required for formwork installation and providing a formwork installation method that can be installed in a short time.

[0035] Furthermore, while a rod-shaped connecting rod 12 can be directly tied to a string-like object or easily connected using a connecting member such as a hook, the large-format formwork formation process involves providing connecting rods 12 at both the top and bottom of the large-format formwork 10. In the suspension installation process, the wire 21 is secured to the upper connecting rod 12 of the large-format formwork 10, and the rope 22 is secured to the lower connecting rod 12 of the large-format formwork 10. This allows the string-like wire 21 and rope 22 to be easily connected to the connecting rods 12, thereby improving work efficiency.

[0036] Furthermore, in the large-format formwork formation process, the formwork 10 is assembled so that its width is greater than its height, allowing for larger formwork 10s. This enables the installation of large-format formwork 10s covering a large area in a single installation operation, improving work efficiency.

[0037] In this embodiment, the connecting rod 12 is made of iron pipe, but it is not limited to this. The connecting rod 12 may be made of any common mechanical material, such as a solid metal rod, a wooden rod, or a resin rod.

[0038] In other words, the present invention is not limited to the examples, as long as it achieves the functions and effects of the present invention. [Industrial applicability]

[0039] The technology of the present invention is suitable for a method of installing formwork in the structural construction of buildings. [Explanation of Symbols]

[0040] 10... Large-format formwork 11… Frame board 12… Connecting rod (iron pipe) 13… Connection part 20... Crane 21… Wire 21a, 22a...locking part 22… Rope 25… Worker 30… Buildings

Claims

1. A method for installing formwork in the structural work of a building, A frame alignment step is performed in which multiple rectangular frame boards are arranged in adjacent positions along their longitudinal directions at the site where the aforementioned building is to be constructed. A large-format formwork forming process involves assembling multiple frame plates arranged in a row onto connecting rods extending in the short direction of the frame plates via connecting parts, thereby forming a large-format formwork as a single unit; A formwork installation method characterized by comprising a suspension installation step of suspending the aforementioned large formwork with a crane wire and moving and installing it in a location that will become the wall of the building.

2. A formwork installation method according to claim 1, The above-mentioned suspension installation step is a formwork installation method characterized by suspending the large formwork by attaching the wires at two or more points with intervals in the width direction.

3. A formwork installation method according to claim 1 or claim 2, The suspension installation step is a formwork installation method characterized by securing the wire above the vertical center of the large formwork, and securing two ropes at a distance apart in the width direction below the vertical center of the large formwork, with each rope being held by a worker on the ground.

4. A formwork installation method according to claim 3, The large-format formwork formation process involves providing connecting rods to the upper and lower parts of the large-format formwork. The above-mentioned suspension installation step is a formwork installation method characterized by securing the wire to the connecting rod at the upper part of the large formwork and securing the rope to the connecting rod at the lower part of the large formwork.

5. A formwork installation method according to claim 1 or claim 2, The large-format formwork formation process is characterized by assembling the formwork such that its width is greater than its height.

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