Formwork shoring

Abstract

To provide a form support that allows free entry and exit into an area formed by the form support. [Solution] The formwork support 10 is a support that supports a formwork for pouring concrete used when constructing a concrete structure, and is equipped with a plurality of building frames 18 that are approximately square pillar-shaped and have a plurality of pillars 12 extending vertically, a plurality of connecting members 14 extending horizontally and connecting the plurality of pillars 12, and a plurality of diagonal bracing members 16 that extend diagonally and are installed across the plurality of connecting members 14, and is characterized in that the plurality of building frames 18 are aligned at a predetermined interval so that adjacent building frames 18 form a lattice-like movement passage when viewed from above.

Description

[Technical Field]

[0001] This invention relates to formwork support. [Background technology]

[0002] Conventionally, in the field of construction, formwork shoring has been used to hold formwork when pouring concrete into horizontal areas such as floor slabs and ceilings. As a technique related to the present invention, for example, Patent Document 1 discloses a framework shoring structure in which building frames are installed in parallel at a predetermined interval and adjacent frames are connected by diagonal braces, characterized in that multiple sets of diagonal braces connecting adjacent building frames are installed in parallel, thereby shortening the distance between the fixing parts where the pedestals of the building frames are fixed by the diagonal braces.

[0003] Patent Document 2 also discloses a support device that includes pillars, connecting members and diagonal braces that are set between the pillars, wherein the pillars consist of a main pillar and a sliding pillar that is slidably inserted into the main pillar and locked at a desired height by a joint lock member, and wherein connecting fittings that have holders with receiving holes are attached to the main pillar or the sliding pillar, and wedges attached to both ends of the connecting members are fitted into the receiving holes to connect the connecting members to the pillars. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-287039 [Patent Document 2] Utility Model Registration No. 3168096 Summary of the Invention [Problem to be solved by the invention]

[0005] Conventional framework shoring methods include framework shoring, which is a method of creating shoring using the building frames and accessories used in scaffolding, and wedge-type formwork shoring, which has a navel at the end of the support pillar that can be easily inserted and added.

[0006] Conventional frame shoring and wedge-connected formwork shoring are closed spatial areas, and it is not possible to freely enter or exit the area formed by the formwork shoring.

[0007] The object of the present invention is to provide a formwork support that allows free entry and exit into the area formed by the formwork support. [Means for solving the problem]

[0008] The formwork support of the present invention is a formwork support that supports a formwork for pouring concrete used when constructing a concrete structure, and is characterized in that it comprises a plurality of building frames that are approximately square prism-shaped and include a plurality of vertically extending pillars, a plurality of connecting members that extend horizontally and connect the plurality of pillars, and a plurality of diagonal extending connecting members that are arranged across the plurality of connecting members, and the plurality of building frames are aligned at a predetermined interval so that adjacent building frames form a lattice-like movement passage when viewed from above.

[0009] In addition, in the formwork support according to the present invention, it is preferable to provide beam members that connect the upper parts of the aligned building frames to each other. [Effects of the Invention]

[0010] According to this invention, it is possible to freely enter and exit the area formed by the formwork support. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a diagram showing a formwork support in an embodiment of the present invention; [Figure 2] 1 is a diagram showing the space inside the formwork support in an embodiment of the present invention; [Figure 3]1 is a diagram showing the space inside the formwork support in an embodiment of the present invention; [Figure 4] 1 is a diagram showing a prior art framework support. FIG. [Figure 5] FIG. 1 shows a prior art wedge-connected formwork support. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be described in detail below with reference to the accompanying drawings. In the following, the same elements in all the drawings will be designated by the same reference numerals, and duplicate explanations will be omitted. Furthermore, in the description below, the reference numerals previously mentioned will be used as necessary.

[0013] 1 is a diagram showing a formwork support 10 according to an embodiment of the present invention. The formwork support 10 has a function of supporting a formwork for pouring concrete used when constructing a concrete structure.

[0014] Fig. 1(a) is a plan view (top view) of formwork support 10 installed at a construction site. Fig. 1(b) is a cross-sectional view taken along line AA in Fig. 1(a), Fig. 1(c) is a cross-sectional view taken along line BB in Fig. 1(a), Fig. 1(d) is a cross-sectional view taken along line CC in Fig. 1(a), and Fig. 1(e) is a cross-sectional view taken along line DD in Fig. 1(a).

[0015] Formwork is a component or framework that guides liquid materials into a desired shape as they solidify. When pursuing economy and efficiency in the design of buildings and other structures, the material, reusability, and ease of handling of the formwork are considered important. The method of building concrete structures using formwork is called formwork construction.

[0016] Formwork shoring 10 is used to support the formwork used when pouring concrete at a construction site, and is made up of joists, joists, supports, etc. The Industrial Safety and Health Act defines it as "a temporary facility made up of members such as supports, beams, ties, and braces, and used to support formwork used when pouring concrete for slabs, girders, etc. in buildings."

[0017] The formwork support 10 comprises a plurality of building frames 18 each having a substantially rectangular pillar shape, each of which comprises a plurality of vertically extending columns 12, a plurality of connecting members 14 extending horizontally and connecting the plurality of columns 12, and a plurality of diagonal bracing members 16 extending diagonally and straddling the plurality of connecting members 14.

[0018] The formwork support 10 will be described as a wedge-type formwork support that has a navel at the tip of the support column 12 and can be easily inserted and expanded, but of course it can also be applied to other types of support. For example, it can also be applied to pipe-supported formwork support, lightweight shoring beam formwork support, frame-type formwork support, prefabricated steel formwork support, and square tower-type formwork support.

[0019] Each frame 18 can be shaped like a rectangular pillar with a width of 1219 mm, a depth of 914 mm, and a height of 4510 mm. This size is an example, and can of course be changed as needed.

[0020] Each building frame 18 is constructed by erecting four tubular pillars 12 at each corner of the bottom surface of an approximately rectangular pillar shape, and installing three tubular connecting members 14 at the parts corresponding to each side surface so as to be stretched across the four pillars 12.

[0021] Furthermore, two diagonal bracing members 16 are installed between these three connecting members 14. In this way, each building frame 18 is a frame having a substantially rectangular prism shape, made up of four supports 12, twelve connecting members 14, and six diagonal bracing members 16. Here, each building frame 18 is described as being made of steel pipes, but other materials, such as aluminum, may also be used.

[0022] The multiple building frames 18 are aligned with a predetermined distance between adjacent building frames so as to form a grid-like passageway when viewed from above. As shown in Fig. 1(a), 16 building frames 18 are aligned with a predetermined distance. Here, the distance between each of the 16 building frames 18 in the row and column directions is set to 1829 mm.

[0023] As shown in Figure 1(a), six building frames 19 are arranged in the row next to the building frames 18 arranged in the second and third rows of the 16 building frames 18. The building frames 19 have the same configuration as the building frames 18, but in the example shown in Figure 1(a), which has a different size, the width is 914 mm, the depth is 1829 mm, and the height is 4510 mm. Of course, this size is also one example and can be changed as appropriate.

[0024] 1(a), pillars 20 are arranged on both ends of the three rows of building frames 19 in the row direction, resulting in a total of six pillars 20. Beam members 22 are provided to connect the upper parts of the aligned building frames 18, 19 and the upper parts of the pillars 20.

[0025] When the placed formwork support 10 is viewed from above, a passageway indicated by the arrows is formed as shown in Figure 1(a). The distance between the first and second rows of building frames 18 is set to 1829 mm here.

[0026] The distance between the frames 18 in the third and fourth columns is also set to 1829 mm. Looking at the spacing between the frames 18 in the row direction, the distance between the frames 18 in the second and third rows is also set to 1829 mm.

[0027] Furthermore, the distance between the second and third rows of building frames 18 and the columns of building frames 19 is set to 1829 mm. As a result, as shown in Figure 1(a), a grid-like passageway is formed in which workers can move both vertically and horizontally.

[0028] Next, the operation of the form support 10 configured as described above will be explained. First, the issues with the form support of the prior art will be explained. The form support 100 shown in Figure 4 is a framework support, which is a method of creating support using building frames and accessory members used for scaffolding.

[0029] Fig. 4(a) is a plan view (top view) of a conventional formwork support 100. Fig. 4(b) is a cross-sectional view taken along line AA in Fig. 4(a), Fig. 4(c) is a cross-sectional view taken along line BB in Fig. 4(a), Fig. 4(d) is a cross-sectional view taken along line CC in Fig. 4(a), and Fig. 4(e) is a cross-sectional view taken along line DD in Fig. 4(a).

[0030] As shown in Figures 4(b) to 4(d), X-shaped braces are formed on the side of the building frame. This makes it difficult for workers to freely enter and exit the formwork support 100. In addition, there are restrictions on the order in which the assembled formwork support 100 can be dismantled, which poses the problem of the time required for the dismantling work.

[0031] In recent years, the use of formwork shoring 110, which is a wedge-type formwork shoring with a navel at the tip of the support that can be easily inserted and added, has become more common. Figure 5(a) is a plan view (top view) of the formwork shoring 110 of the prior art.

[0032] Fig. 5(b) is a cross-sectional view taken along line AA in Fig. 5(a), Fig. 5(c) is a cross-sectional view taken along line BB in Fig. 5(a), Fig. 5(d) is a cross-sectional view taken along line CC in Fig. 5(a), and Fig. 5(e) is a cross-sectional view taken along line DD in Fig. 5(a).

[0033] 5(b) to 5(d), the side portions of the building frame are provided with connecting members extending laterally and diagonally extending bracing members erected on the connecting members. This makes it difficult for workers to freely enter and exit the formwork shoring 110, and like the formwork shoring 110, it takes time to dismantle the assembled formwork shoring 110.

[0034] The formwork support 10 according to the embodiment of the present invention is extremely effective in addressing the above-mentioned problems. As shown in Figures 1(b) and 1(c), the formwork support 10 has adjacent building frames 18, 19 spaced 1829 mm apart, creating an opening large enough for workers to pass through.

[0035] As shown in Figure 1(a) in the top view, a grid of passageways with 1829 mm intervals is formed, and these passageways are indicated by arrows. This allows workers to freely enter and exit the formwork support 10, and also allows workers to move freely within the formwork support 10.

[0036] 2 and 3 show photographs of a construction site where formwork support 10 has been installed, and it can be seen that workers can freely move around the wide passageway within formwork support 10. Also, in Fig. 3, a self-propelled aerial work vehicle with a height of about 5 m is placed inside the passageway, and work can be carried out while moving within the passageway.

[0037] In the conventional formwork supports 100, 110, there were no openings in the beam support, so the entire room was closed off and no one could enter or exit. In contrast, the formwork support 10 has the advantage of being able to provide an open space by installing building frames 18, 19 that combine high-strength pillars and high-strength beams, allowing people to pass through the site and transforming it into a bright and clean work area.

[0038] Furthermore, as mentioned above, a wide passageway can be secured within the transfer passageway so that self-propelled aerial work platforms can pass freely, and by combining high-strength pillars and high-strength beams, the support materials can be simplified, which has the advantage of significantly reducing construction costs compared to conventional technology.

[0039] Furthermore, by using the formwork support 10, workability is significantly improved compared to conventional support systems, and assembly and disassembly times can be significantly reduced. Also, since assembly and disassembly can be performed from anywhere depending on the purpose, there is the advantage of significantly improving work efficiency. Furthermore, the spacing between the building frames 18 and 19 is wide at 1829 mm, which provides ample working and movement space and ensures safety. [Explanation of symbols]

[0040] 10 Formwork support, 12 support, 14 connecting member, 16 bracing member, 18, 19 building frame, 20 column, 22 beam member, 100 formwork support, 100, 110 formwork support.

Claims

1. A formwork support that supports a formwork for pouring concrete used when constructing a concrete structure, The building frame is provided with a plurality of substantially rectangular pillar-shaped building frames each including a plurality of vertically extending columns, a plurality of horizontally extending connecting members connecting the plurality of columns, and a plurality of diagonally extending diagonal bracing members provided across the plurality of connecting members, A formwork support structure characterized in that the multiple building frames are aligned at a predetermined interval between adjacent building frames so as to form a lattice-shaped movement passage when viewed from above.

2. In the formwork support according to claim 1, A formwork support characterized by comprising beam members that connect the upper parts of the aligned building frames to each other.

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