JP7447964B2 - Ceiling structure and ceiling structure construction method - Google Patents

Description

The present invention relates to a ceiling structure and a method for constructing a ceiling structure.

In buildings such as buildings, equipment such as air conditioners and lighting equipment may be installed in the ceiling. One method of supporting equipment in the ceiling is to suspend and support equipment from an upper structural member using hanging bolts (see, for example, Patent Documents 1 to 3). In the technique described in Patent Document 1, a plurality of lighting fixtures are suspended from a ceiling slab at required intervals, and each lighting fixture supports a ceiling board. Further, in the technique described in Patent Document 2, a frame is suspended by a hanging fixture, and a long appliance frame for arranging ceiling equipment or a ceiling finishing material is placed on the frame. Furthermore, in the ceiling unit described in Patent Document 3, the structural materials of the ceiling and the lighting fixture are integrated.

Furthermore, a method of supporting additional piping for installing additional piping is also being considered (see, for example, Patent Document 4). In the technique described in Patent Document 4, a pipe support member is attached from the side to an existing hanging bolt provided in the ceiling of an existing building, and an additional pipe is attached to the pipe support member. The piping support member is fixed with a nut that is screwed onto the hanging bolt from the side.

Japanese Patent Application Publication No. 08-284304 Utility Model Publication No. 51-22501 Japanese Patent Application Publication No. 10-152935 Japanese Patent Application Publication No. 2001-336674

However, when a hanging bolt for hanging equipment in the ceiling and a hanging bolt for hanging a ceiling material are constructed separately, there is a problem that noise and vibration are generated in each anchor driving work. Furthermore, if the construction work is performed separately, it takes time for each work and the work efficiency is poor. Furthermore, by installing each suspension bolt, interference with the base and supporting materials may increase, which may result in poor fitting. In particular, when it comes to ceiling renovation work, there is often no leeway in the work schedule and the process is often under pressure. Further, the size of the equipment and the position where the equipment is provided vary depending on the design of the ceiling structure. Therefore, if supporting members for equipment are provided on the ceiling in advance, there is a possibility that some supporting members will not be used and will be wasted.

A ceiling structure for solving the above problems includes a structural member, a ceiling member provided below the structural member, and a pair of vertical members whose one end is connected to the structural member and the other end is connected to the ceiling member. and a horizontal member that connects the pair of vertical members at an intermediate portion of each of the vertical members, and equipment supported by the horizontal member.

A support column for solving the above problem is a support column that supports a horizontal member that supports equipment materials and a ceiling member below the structural member, and includes a structural member fixing portion that is fixed to the structural member, and a strut connected to a structural material fixing section; a hanging material fixing section that supports a hanging material that supports the ceiling material at a lower end of the strut so that its length can be adjusted; and a hanging material fixing section that supports the horizontal material in the strut and a support section.

The present invention can realize a ceiling structure that fits well. Furthermore, the ceiling structure can be constructed efficiently.

FIG. 3 is a side view of the ceiling structure of this embodiment. FIG. 3 is a plan view of the system ceiling of this embodiment. An explanatory diagram of the stay of this embodiment. FIG. 3 is an explanatory diagram of the arrangement of stays according to the present embodiment. FIG. 4 is an explanatory diagram of the installation of the bar according to the present embodiment. FIG. 3 is an explanatory diagram of the installation of the ladder according to the present embodiment. FIG. 2 is an explanatory diagram of installation of an air conditioner according to the present embodiment. Explanatory diagram of installation of ceiling material of this embodiment. FIG. 6 is an explanatory diagram of a stay of a modified example, in which (a) is an explanatory diagram of a stay partially using a support tool, and (b) is an explanatory diagram of a stay of a round pipe. It is an explanatory view of a stay of a modification, and (a) is an explanatory view of the slit hole and the hook of the stay, and (b) is an explanatory view of the connection of the bar.

Hereinafter, one embodiment of a ceiling structure, a method of constructing the ceiling structure, and support columns will be described using FIGS. 1 to 8. In this embodiment, a case is assumed in which a ceiling structure is constructed in a system ceiling having a grid structure.

FIG. 1 is a side view of the ceiling structure, and FIG. 2 is a plan view of the system ceiling.
As shown in FIG. 1, stays 20 (support columns) are driven by anchors and vertically installed on a floor slab 10 (structural material). A vertical member is constructed by connecting a hanging bolt 30 (hanging member) to the lower end of the stay 20. Furthermore, a hanger 40 is suspended from the lower end of the hanging bolt 30. A T-bar 50 is fixed to this hanger 40. This T-bar 50 is composed of a main T-bar and a cross T-bar, and is arranged in a grid pattern. Then, a ceiling material 60 and the like are placed on the flange portion at the lower end of the T-bar 50 to constitute a system ceiling.

The system ceiling of this embodiment will be explained using FIG. 2. As described above, this system ceiling consists of the grid GR1 of a predetermined size (for example, 600 mm square) formed by the T-bar 50. In each grid, as a ceiling material 60, in addition to a ceiling board 61, a lighting fixture 62 and a ventilation hole 63 are arranged. Then, a predetermined number (three in this embodiment) of grids GR1 are grouped together into one span SP1 (hanging pitch), and a stay 20 is provided for each span SP1. In the area surrounded by the stay 20, equipment is placed behind the ceiling, as will be described later.

As shown in FIG. 3, the support section 21 of the stay 20 is made of a square metal pipe with enough strength to support ceiling materials and equipment. A flange 211 (structural material fixing part) for anchoring to the floor slab 10 is provided at the upper end of the column part 21. Further, supports 22 (support parts) made up of a plurality of metal holders at different heights are provided on the peripheral side surface of the column part 21. The support 22 is made of metal and is welded to the support column 21. The support 22 is provided, for example, at a position 500 mm or 700 mm from the lower end of the support column 21, but this distance may be determined depending on the size of the equipment. For example, if the distance from the floor slab 10 to the ceiling material 60 is "700 mm to 1300 mm," the distance from the floor slab 10 to the upper support 22 is "200 mm to 400 mm," and the distance from the upper support 22 to the lower support 22 is " 100 mm to 300 mm, and the distance from the lower support 22 to the ceiling material 60 is 400 mm to 600 mm.
A female screw 212 (hanging member fixing part) is fixed to the lower end of the support column 21. Then, the hanging bolt 30 to which the hanger 40 is fixed is screwed into the female screw 212.

As shown in FIG. 1, the support 22 of the stay 20 supports the ends of a bar 221 and a ladder 222 as horizontal members. The bar 221 and the ladder 222 are bridged and fixed between the supports 22 of other adjacent stays 20.

The bar 221 has a length corresponding to one span SP1. The bar 221 is configured using, for example, a square metal pipe, and supports various equipment materials. Specifically, a band B1 fixed to the bar 221 is used to fix the cable rack 225 on which the cable U1 is placed and the cooling pipe U2 covered with the heat insulating material 226. Furthermore, a drain pipe U3 of an air conditioner may be suspended from the band B1.

Furthermore, the ladder 222 is configured in the form of a ladder, with an intermediate bar provided on a square frame with a length of one span SP1. The ladder 222 is configured using, for example, a square metal pipe. For example, an air conditioner U5 as a piece of equipment can be suspended from the ladder 222 using a hanging tool 227.

(Construction method)
First, as shown in FIG. 4, the stay 20 is vertically installed on the floor slab 10. In this case, they are arranged at a distance of 1 span SP on the system ceiling.

Next, bars 221 and ladders 222 are placed where ceiling equipment needs to be placed.
As shown in FIG. 5, a bar 221 is placed over the support 22 of an adjacent stay 20 at a location where piping and the like are arranged. Then, the cable rack 225, cable U1, cooling pipe U2, etc. are placed on the bar 221. Further, the drain pipe U3 is suspended from a plurality of bars 221 in the drainage direction. In this case, the hanging height is adjusted so that the drain pipe is inclined downward (for example, at a 1/100 slope) in the drainage direction.

Furthermore, as shown in FIG. 6, a ladder 222 is provided at a location where large equipment such as an air conditioner is placed. In this case, the ladder 222 is arranged so that its apex angle spans the support 22 of the adjacent stay 20. Note that in FIGS. 6 to 8, equipment placed on or suspended from the bar 221 is omitted. Further, only one of the bar 221 and the ladder 222 may be arranged.

As shown in FIG. 7, the air conditioner U5 is suspended from the intermediate bar of the ladder 222.
Then, as shown in FIG. 8, when the installation of the equipment is completed, the T-bar 50 is fixed to the hanger 40 to form a grid. Then, a ceiling material 60 is placed on each grid.

According to this embodiment, the following effects can be obtained.
(1) In this embodiment, a stay 20 is provided for each span SP1. A support 22 and a hanging bolt 30 are fixed to this stay 20. Thereby, the stay 20 supports the ceiling material 60 and can also be used to fix equipment. Therefore, it is not necessary to separately provide anchors on the floor slab 10 for equipment materials and ceiling materials, and it is possible to suppress noise and vibration during pouring and shorten the construction period.

(2) In this embodiment, a plurality of supports 22 are provided at different heights on the peripheral side surface of the support column 21. Thereby, the equipment can be placed at a desired position by spanning horizontal members such as the bar 221 and the ladder 222.

(3) In this embodiment, the suspension bolt 30 is screwed into the female thread 212 at the lower end of the support column 21 . Thereby, the hanging position of the ceiling material 60 can be adjusted using the hanging bolt 30.
(4) In this embodiment, the ladder 222 is supported by the support 22. This allows heavy equipment and large equipment to be supported.

This embodiment can be modified and implemented as follows. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

- In the above embodiment, the support 22 is provided on the support column 21. The support portions of the bar 221 and the ladder 222 are not limited to supports provided continuously around the support portion 21, but may be provided at positions where there is a possibility of supporting the horizontal member.
For example, as shown in FIG. 9(a), the stay 20a may be provided with supports 22a arranged in all directions in the support portion 21a.

- In the above embodiment, the support section 21, the bar 221, and the ladder 222 are made of square metal pipes, but the shape and material are not limited to this. For example, a round pipe, an L-shaped steel, or a channel material having a U-shaped or C-shaped cross section may be used.
As shown in FIG. 9(b), in the case of a stay 20b using a round pipe for the support portion 21b, a stay 20b provided with a semi-cylindrical support 22b may be used.

- In the above embodiment, the support 22 that supports the horizontal member is welded to the support 21. The method of fixing the support is not limited to welding.

For example, as shown in FIG. 10(a), a support column 20c may be used in which a plurality of slit holes 22c are provided at different heights in the column portion. In this case, a support 22d equipped with a hook 22d1 that can be inserted into the slit hole 22c is used. As shown in FIG. 10(b), the support 22d can be provided at an arbitrary height position by inserting the hook 22d1 into the slit hole 22c. Further, the degree of freedom in the height of the bar 221 and the ladder 222 attached to the support 22d can be efficiently secured.

- In the above embodiment, the equipment is supported by the ladder 222 spanned by the support 22 of the stay 20. The horizontal member that supports the equipment is not limited to the ladder 222. For example, a plurality of bars may be spanned between a pair of bars 221 spanned by a pair of stays 20 to form a ladder shape. Furthermore, a plate member may be used instead of the ladder 222.

- In the above embodiment, horizontal members such as the bar 221 and the ladder 222 are spanned over the span SP1. The spanning direction is not limited to the side direction of the span SP1. For example, the bar 221 may extend across the diagonal of the rectangular span SP1.

- In the above embodiment, the stay 20 is suspended from the floor slab 10 for each span SP1. It is not necessary to use the stays 20 in all locations, and in locations where no equipment is provided, hanging bolts may be directly installed vertically on the floor slab 10.

- In the above embodiment, the stay 20 is installed vertically from the floor slab 10. The stay is not limited to the slab, but may be any structural material that exists above the ceiling material. For example, it may be fixed to a structural member such as a beam.

- In the above embodiment, an air conditioner, various types of piping, ducts, and cable racks are used as equipment materials, but the equipment is not limited to these as long as it is placed in the ceiling.

DESCRIPTION OF SYMBOLS 10... Floor slab as a structural material, 20... Stay as a vertical member, 21... Pillar part, 211... Flange, 212... Female screw, 22, 22a, 22b, 22d... Support tool as a support part, 22c... Slit hole , 22d1... Hook, 221... Bar as horizontal material, 222... Ladder as horizontal material, B1... Band, 225... Cable rack, 226... Heat insulating material, 227... Hanging tool, 30... Hanging bolt, 40... Hanger, 50...T bar, 60...ceiling material, 61...ceiling board, 62...lighting equipment, 63...ventilation hole, GR1...grid, SP1...span, U1...cable, U2...cooling pipe, U3...drain pipe, U5...air conditioning Device.

Claims (3)

structural materials,
A ceiling material provided below the structural material,
a pair of vertical members connected at one end to the structural member and at the other end to the ceiling member;
a horizontal member connecting the pair of vertical members at an intermediate portion of each of the vertical members;
A ceiling structure comprising: equipment supported by the horizontal member;
The ceiling material includes a T-bar fixed to the vertical material at the other end,
A grid of a predetermined size is formed by the T-bar,
One span is composed of a predetermined number of the grids,
The vertical member is provided for each span,
A ventilation hole or a lighting fixture is arranged as one of the ceiling materials provided in the predetermined number of the grids constituting the one span,
The vertical member is a stay equipped with a support column capable of supporting the equipment material,
The support column is a ceiling structure including a flange as a structural member fixing part for anchoring to the structural member . The span is composed of three grids together,
The ceiling structure according to claim 1, wherein ventilation holes are arranged in a central grid forming the span. A construction method for a ceiling structure,
a step of connecting one end of a pair of vertical members to a structural member;
connecting a horizontal member to the pair of vertical members;
a step of supporting or placing equipment materials on the horizontal material;
connecting a ceiling material to the other end of the pair of vertical members;
has
The ceiling material includes a T-bar fixed to the vertical material at the other end,
A grid of a predetermined size is formed by the T-bar,
One span is composed of a predetermined number of the grids,
The vertical member is provided for each span,
A ventilation hole or a lighting fixture is arranged as one of the ceiling materials provided in the predetermined number of the grids constituting the one span,
The vertical member is a stay equipped with a support column capable of supporting the equipment material,
A construction method for a ceiling structure, wherein the support column includes a flange as a structural member fixing part for anchoring to the structural member .

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