JP6044988B2 - Mounting method of ceiling panel for retrofitting and ceiling structure - Google Patents

Description

  The present invention is compatible with various beam materials, has a mounting strength sufficient for dimensional error of the beam material, and can easily and stably attach the heat insulating material as a ceiling plate. It relates to the ceiling structure.

2. Description of the Related Art Conventionally, a structure in which a ceiling material is placed on an upper surface of a structural material called a purlin has been generally adopted as a structure in which a heat insulating material, a decorative material, and the like are disposed on a ceiling of a building. As this structural material, shape steels such as H-shaped steel, C-shaped steel, and I-shaped steel are used, and there are a wide variety of steel material compositions, fixed dimensions, and the like according to purposes for various demand fields.
For example, in Patent Document 1 and the like, a frame-shaped mounting member is arranged on a structural material of a building in a direction perpendicular to the structural material, and a net-like support member is arranged on the mounting member, whereby the mounting member and the supporting material are arranged. A configuration is proposed in which a rectangular receiving portion is formed and a ceiling material is disposed in the receiving portion.
In this way, the roof of the type that attaches roofing material directly to the beam material (frame) that is often used in buildings such as factories and warehouses, such as the roof of slate tiles, has poor heat insulation, so existing buildings In order to increase the air-conditioning effect and save on air-conditioning costs, additional insulation work is often required after construction. In addition, there is a problem that it takes time and cost to install the heat insulating material.
And in patent document 2, etc., the construction method aiming at attaching a heat insulating material to the inner surface of the roof of a building or a wall easily in a short time is proposed, and the heat insulating material 4 of the opening part 3a of the C-shaped steel material 2 is proposed. A method is described in which one end portion with the H-shaped steel material 5 attached to the side end is inserted, a piece-like fastener 8 is attached to the other end portion, and fitted to the adjacent C-shaped steel material 3 from below. Has been. As a result, it has been reported that the cost required for heat insulation work could be greatly reduced.

No. 7-51536 Japanese Patent No. 49055287

However, the method described in Patent Document 1 is a method in which C-shaped steel is used as a structural material, and a ceiling material is disposed on the C-shaped steel. The beam material and frame must be changed according to the presence / absence, thickness of the ceiling material, etc., and the presence / absence of the ceiling material and the thickness of the ceiling material affected the roof structure constructed above it. . In addition, since various types of attachment members for arranging the ceiling material are necessary, it is troublesome in terms of member management, and naturally the work is increased due to the increase in the number of members.
Further, the construction method of Patent Document 2 is a construction method limited to attachment to a C-shaped steel material, and there is a problem that the attachment itself is not established when the attachment object is an L-shaped steel material or an H-shaped steel material. Since the mounting strength depends on the fitting of the piece-shaped fastener 8 to the C-shaped steel material 3, there is also a problem that sufficient mounting strength cannot be obtained. Furthermore, in the construction method of Patent Document 2, it may be difficult to fit the above-described fastener 8 when there is an error in the dimensions of the C-shaped steel material. In addition, the method of Patent Document 2 is inferior in design because, for example, the measures for preventing the heat insulating material from falling are not performed by using a wire mesh or the like, and the end portion of the heat insulating material is exposed.

  Therefore, the present invention can be applied to various types of beam materials, and has a mounting strength sufficient for dimensional errors of the beam materials, and can be easily and stably attached to the heat insulating material as a ceiling plate. And to provide a ceiling structure.

  The present invention has been proposed in view of the above, and mounting of a heat-insulating ceiling panel is provided by attaching a mounting bracket to the beam material, and arranging a joiner so as to be orthogonal to the beam material, thereby arranging a heat-insulating ceiling plate. In the construction method, the beam member is a shape steel having a horizontal piece part at least at the lower end of the vertical piece part, and the mounting bracket is provided with an engagement groove that opens outward at the left and right ends of the decorative face part, respectively. A hook portion that can be hooked to the tip of the horizontal piece portion of the beam member in an installed state, and an attachment portion that can be attached to the lower end of the vertical piece portion from below, and the joiner includes a lower flange and an upper flange. The lower flange is provided with an extending portion that protrudes in the length direction, and the mounting bracket is rotated with the hook portion hooked on the lateral piece of the beam material. In the state where the attachment portion is attached from below to the lower end of the vertical piece portion, A first step of fixing the mounting bracket by screwing from the side to the lower end of the vertical piece, a second step of installing the heat insulating ceiling plate while rotating between the adjacent mounting brackets, and an end of each mounting bracket A third step of inserting the extended portions of both ends of the joiner into the engaging grooves of the respective parts and disposing one side facing the side surface of the heat insulating ceiling plate, and the other side of the disposed joiner, It is related with the installation method of the heat insulation ceiling board characterized by implementing a 4th process of attaching a heat insulation ceiling board while arrange | positioning an attachment metal fitting.

  The present invention also proposes a method for mounting a post-insulation ceiling board, characterized in that in the above-described method for mounting a post-insulation ceiling board, a fall prevention net is disposed along the lower surface of the ceiling board. It is.

  Furthermore, the present invention also proposes a ceiling structure that is constructed by the installation method of the retrofitted heat-insulating ceiling board.

The mounting method of the post-insulation ceiling plate of the present invention can be applied not only to C-shaped steel but also to various beam materials such as L-shaped steel and groove-shaped steel, and has sufficient mounting strength against dimensional errors of the beam material. The heat insulating material can be easily and stably attached as a ceiling plate.
In addition, since the first to fourth steps constituting the mounting method of the present invention can be operated from either the indoor side or the beam side, it is also possible to compare the ceiling construction of a relatively large factory or gymnasium. It is possible to construct the ceiling in a small-sized warehouse, etc., or in accordance with the overall procedure of the construction as appropriate.

  In addition, when a fall-prevention net is placed along the bottom surface of a heat-insulating ceiling panel, the degree of freedom of the material selected as the heat-insulating ceiling panel (applicable range of materials) is widened, and the heat-insulating ceiling panel can be used for earthquakes, etc. At that time, the risk of falling can be greatly reduced.

  Furthermore, the ceiling structure of the present invention is a combination of a mounting bracket and a joiner in a lattice shape, and a heat insulating ceiling plate is provided there. It is high and has excellent design properties.

(A) Side sectional view showing the first step of the first embodiment of the present invention, (b) Side sectional view showing the second step, (c) Front sectional view showing the third step, (d) The perspective view, (e) The side view, (f) The front sectional view showing the 4th process, (g) The front sectional view after the 4th process. (A) The side sectional view showing the example which repaired the roof structure above the ceiling structure of the 1st example, (b) The front sectional view.

  The present invention is a mounting method for a retrofitted heat-insulating ceiling plate in which a mounting bracket is attached to a beam member, a joiner is disposed so as to be orthogonal to the beam member, and a heat-insulating ceiling plate is disposed.

  The beam material used in the present invention is a shape steel having a horizontal piece portion at least at the lower end of the vertical piece portion, the vertical piece portion extends in a substantially vertical shape, and the horizontal piece portion extends in a substantially horizontal shape. It is desirable to provide a shape in which the one piece and the horizontal piece are connected substantially orthogonally, that is, a shape in which a vertical surface portion is formed. Examples of such a shape steel include L-shape steel, C-shape steel (lip groove shape steel), and groove shape steel. These shape steels may have dimensional errors due to non-uniform treatment of the rust-proof coating during molding, but in the construction method of the present invention, the mounting bracket described later is used as a new standard. Even if there is a dimensional error of the beam material, the mounting strength does not decrease.

The joiner used in the present invention includes a lower flange, an upper flange, and a web connecting the centers thereof, and the lower flange is provided with an extending portion that protrudes in the length direction.
Although this joiner has an H-shaped cross section, unlike a general H-shaped steel material, it has a configuration in which a lower flange extends long in the length direction at an end portion in the length direction. Further, since this joiner is disposed orthogonally between adjacent mounting brackets, it is formed in a length corresponding to the interval between adjacent mounting brackets.

The mounting bracket used in the present invention is a member for connecting two types of shape steel, the beam material and the joiner, and an engagement groove that opens outward at the left and right ends of the decorative surface portion, A threading member comprising: a hook portion that can be hooked to the distal end of the horizontal piece portion of the beam material; and an attachment portion that can be attached to the base end of the horizontal piece portion and the lower end of the vertical piece portion from below. It is.
The decorative surface portion is a substantially horizontal horizontal piece that is disposed on the lower surface side of the beam material in the disposed state and plays a role of hiding the beam material or screwed screws when viewed from the indoor side. Since the engaging grooves provided at the left and right ends of the decorative surface portion are portions into which the extending portions of the joiner are inserted, the engaging grooves are formed slightly wider than the thickness of the extending portion of the joiner. .
As described above, the hook portion may have any shape as long as it can be hooked on the tip of the horizontal piece portion of the beam member. For example, when a C-shaped steel (lip groove shaped steel) is used as a beam material as in the illustrated embodiment described later, the horizontal piece has a shape in which an upward piece is extended to the lower flange. The tip of the part refers to the upper end of the upward piece, and the hook part is formed in a substantially L shape. Further, for example, when an L-shaped steel or a grooved steel is used as the beam material, the horizontal piece portion is simply a horizontal piece shape without forming an upward piece, so that the hook portion is inclined slightly inward. What is necessary is just to form in a piece shape.
The attachment portion is a portion that can be attached from below to the base end of the horizontal piece portion and the lower end of the vertical piece portion in the arrangement state as described above. As described above, since the horizontal piece portion and the vertical piece portion of the beam material form a vertical surface portion, this attachment portion is also formed in a substantially vertical shape.

  And the attachment method of the retrofitted thermal insulation ceiling board of this invention is comprised from four processes demonstrated below.

[First step]
The first step is a step of fixing the mounting bracket to the beam member, and an operation of rotating the mounting bracket with a hook portion hooked on the horizontal piece portion of the beam member, An operation of screwing the lower end of the vertical piece portion from the side of the attachment portion is performed in a state where the attachment portion is attached to the lower end of the base end and the vertical piece portion from below. Since the attachment portion is formed above the decorative surface portion of the mounting bracket, the screwed screw (screw head) is not exposed to the indoor side, so that the design is not impaired.

[Second step]
In the second step, the heat insulating ceiling plate is installed while rotating between the adjacent mounting brackets fixed in the first step. Here, “installing while rotating” means that a heat-insulated ceiling plate formed slightly narrower than between adjacent mounting brackets is inclined between the mounting brackets, and either end is mounted on one mounting bracket. This means that the other end is rotated in the placed state.
The heat insulating ceiling plate is not particularly limited as long as it is not deformed by its own weight, temperature, humidity, or the like, but may have a structure in which a fall prevention net is integrally laminated on the lower surface. Moreover, when disposing the heat insulating ceiling plate, it is preferable to dispose a separate fall prevention net member along the lower surface of the heat insulating ceiling plate. In that case, this 2nd process installs rotating a heat insulation ceiling board and a fall prevention net | network material between adjacent mounting brackets. In addition, the fall prevention net material is not limited to metal (metal net), and may be made of plastic such as FRP as long as it has strength.

[Third step]
The third step is a step of attaching the joiner so as to form a lattice with respect to the beam member and the mounting bracket, and inserting the extending portions at both ends of the joiner into the engaging grooves at the ends of the fixed mounting bracket, respectively. At the same time, it is arranged with one side facing the side of the heat-insulating ceiling plate. As described above, since this joiner is formed in a length corresponding to the interval between adjacent mounting brackets, the joiner can be disposed by inserting an extending portion from the side into the engaging groove of the mounting bracket. it can.

[Fourth step]
A mounting bracket is disposed on the other side of the disposed joiner and a heat insulating ceiling plate is mounted. Here, “the other side of the joiner” means the opposite side (the other side) to the one side facing the side surface of the heat insulating ceiling plate in the third step. In addition, the connection between the joiner and the mounting bracket is exactly the same as in the third step (the main body is reversed), so that the engaging groove of the mounting bracket fits into the extended portion of the attached joiner. Arrange. And a heat insulation ceiling board is arrange | positioned between the attached mounting brackets.

  In the first embodiment shown in FIG. 1, the retrofitted thermal insulation ceiling plate is attached to a beam member 1 arranged so as to be orthogonal to the flow direction as a base, and a joiner 3 is attached to the beam member 1. It is the structure which arrange | positions so that it may orthogonally arrange | position, and the heat insulation ceiling board 4 is arrange | positioned, Since the mounting bracket 2 and the joiner 3 are combined in the grid | lattice form, it can attach the heat insulation ceiling board 4 easily and stably. It can be done.

  The beam member (C-shaped steel) 1 constituting the base in the first embodiment has a vertical piece (web) 11 extending substantially vertically and a horizontal piece (lower flange) 12 extending substantially horizontally. The web 11 and the lower flange 12 are connected in a substantially orthogonal shape, that is, a shape in which a vertical surface portion is formed. Further, in the beam material 1 made of C-shaped steel, since the upward flange 121 is extended to the lower flange 12, the “tip of the lateral piece portion 12” that hooks the hook portion 23 of the mounting bracket 2 to be described later. Indicates the upper end of the upward piece 121. In the figure, reference numeral 13 denotes an upper flange, and 131 denotes a downward piece provided on the upper flange.

  The mounting bracket 2 according to the first embodiment is a member for connecting two types of shape steel, that is, the beam member 1 and a joiner 3 which will be described later. Grooves 22, 22, a hook portion 23 that can be hooked to the “tip of the horizontal piece 12” of the beam member 1 in the arrangement state, a proximal end of the horizontal piece portion (lower flange) 12 of the beam member 1, and This is a threading member provided with an attachment portion 24 that can be attached to the lower end of the vertical piece portion (web) 11 from below. As described above, the “tip of the horizontal piece portion 12” indicates the upper end of the upward piece 121.

The decorative surface portion 21 is formed in a substantially horizontal horizontal piece, and the engagement grooves 22, 22 provided on the left and right ends of the decorative surface portion 21 are slightly wider than the thickness of the extension portion 34 of the joiner 3 described later. Is formed.
As described above, since the beam member 1 is a C-shaped steel (lip groove steel), the “tip of the lateral piece 12” indicates the upper end of the upward piece 121. Thus, the hook portion 23 was formed in a substantially L shape.
Further, since the attachment portion 24 is attached to the base end of the lower flange 12 of the beam member 1 and the lower end of the web 11 from the lower side in the arrangement state as described above, the lower flange 12 and the web of the beam member 1 are attached. 11 is formed in a substantially vertical shape.

  The joiner 3 in the first embodiment is an aluminum extrusion mold (H-shaped steel) composed of a lower flange 32, an upper flange 33, and a web 31 connecting the centers thereof, and is a general H-shaped steel. Unlike the above, the lower flange 32 is provided with an extending portion 34 protruding in the length direction. Further, since the joiner 3 is disposed orthogonally between the adjacent mounting brackets 2, 2, the joiner 3 is formed in a length corresponding to the spacing between the adjacent mounting brackets 2, 2.

  Further, the heat insulating ceiling plate 4 in the first embodiment is a board shape having a substantially constant thickness, and a metal fall prevention net member 5 is disposed along the lower surface thereof.

  As a first step, as shown in FIG. 1A, the hook member 23 of the mounting bracket 2 is hooked on the upward piece 121 of the beam member 1 as shown by a thick arrow. An operation of rotating the mounting bracket 2 is performed, and then the web 11 is moved from the side of the attachment portion 24 in a state where the attachment portion 24 is attached to the base end of the lower flange 12 and the lower end of the web 11 from below. An operation of hitting a screw (25) as shown by a thick arrow at the lower end is performed. Since the attachment portion 24 is formed above the decorative surface portion 21 of the mounting bracket 2, the head of the screwed screw 25 is not exposed to the indoor side, so that the design is not impaired.

  Next, as a second step, the heat-insulating ceiling plate 4 and the fall prevention net member 5 are installed while rotating between the adjacent mounting brackets 2 and 2 fixed in the first step. More specifically, the right end of the heat-insulating ceiling plate 4 and the fall prevention net member 5 formed slightly narrower than between the adjacent mounting brackets 2 and 2 indicated by dotted lines in FIG. As shown by the thick arrows, the left ends of the heat insulating ceiling plate 4 and the fall prevention net 5 are rotated to the left (upper water). The mounting surface 2 of the mounting bracket 2 is disposed in a mounting manner, and the right end of the mounting bracket 2 is also mounted on the mounting surface 2 of the mounting bracket 2 positioned on the right side.

  Subsequently, as a third step, the joiner 3 is attached to the beam member 1 and the mounting bracket 2 so as to form a lattice shape. More specifically, the engagement grooves 22 and 22 at the ends of the mounting brackets 2 and 2 fixed as shown in FIGS. 1C to 1E are formed at both ends of the joiner 3 as shown by thick arrows. The extending portions 34 and 34 are respectively inserted and arranged so that one surface side (the left side of the joiner 3 in FIG. 1C) faces the side surface of the heat insulating ceiling plate 4. Since this joiner 3 is formed in a length corresponding to the arrangement interval of the adjacent mounting brackets 2, 2, the extending portions 34, 34 extend from the side to the engaging grooves 22, 22 of the mounting brackets 2, 2. It can be arranged by inserting.

  Thereafter, as a fourth step, the mounting bracket 2 is disposed on the other side of the joiner 3 disposed as shown in FIGS. 1 (f) and 1 (g) (on the right side of the joiner 3 in FIG. 1 (f)). At the same time, the heat-insulating ceiling plate 4 and the fall prevention net member 5 were attached. The connection between the joiner 3 and the mounting bracket 2 is exactly the same as in the third step (the main body is reversed), and the mounting bracket 2 is connected to the extended portion 34 of the mounted joiner 3 as indicated by a thick arrow. The engaging grooves 22 are arranged so as to be fitted. And what is necessary is just to arrange | position the heat insulation ceiling board 4 and the fall prevention net | network material 5 between the attached mounting brackets 2 and 2. FIG.

  The connection between the mounting bracket 2 and the joiner 3 is described as the insertion of the extending portion 34 into the engagement groove 22 both in the third step and in the fourth step. Although not shown in (g), as shown in FIGS. 2 (a) and 2 (b) described later, a screw 26 may be driven into the portion from the indoor side to prevent threading.

Reference numeral 6 in FIG. 1 (b) denotes a field material fixed to the upper flange 13 of the beam member 1 in a mounting manner. When the mounting method is carried out from the indoor side, the upper flange of the beam member 1 is used. The case where the existing field material 6 and the roof structure above it remain in FIG. In this case, as shown in FIG. 2 to be described later, the roof structure above the field material 6 is repaired, and the above-described ceiling structure may be constructed from the indoor side.
In addition, when implementing the said installation method from the beam material 1 side, the case where the said field material 6 or the roof structure of the upper part does not remain | survive etc. is assumed, and the above-mentioned ceiling structure was constructed from the beam material 1 side. Thereafter, the field material 6 may be finally fixed to the upper flange 13 of the beam material 1.

FIG. 2 shows an example in which the roof structure is repaired outside the ceiling structure of FIG. 1. As described above, the existing field material 6 on the upper flange 13 of the beam member 1 and the roof structure above it are shown. This is an example in which a part remains.
In this example, an existing roof structure 7 is laid on the upper surface of the existing field material 6, and the existing roof structure 7 has a cross section having a roof material 7 A raised at both ends of a substantially flat face plate portion. It consists of a substantially U-shaped rib member 7B and a horizontal piece-like lid member 7C that covers the open upper portion of the rib member 7B. The side edges of the roof member 7A, the side walls of the rib member 7B, and the lid member 7C This is a structure in which side edges are crimped and integrated, and a vertical rail extending in the flow direction is formed.
Then, a new roof structure 9 is attached on the existing roof structure 7 by using a vertically divided holding member 8 (8A, 8B). Specifically, the vertical structure of the existing roof structure is provided. A substantially gate-like lower holding member 8A is attached so as to straddle the crosspiece, and fixing tools 8c and 8c are driven into fixing portions provided at the lower ends of the left and right leg portions, and the field material 6 is penetrated through the field material 6. It was fixed so as to reach the upper flange 13. Engagement pieces projecting arcuately outwardly from the left and right side walls of the lower holding member 8A are provided, and an exterior member 9A, in which the left and right ends of the substantially flat face plate portion are inclined, is provided on the engagement pieces. In a state of being elastically fitted and held, an inclined side edge portion of the exterior material 9A is disposed by pressing a substantially lid-shaped upper holding member 8B having an elastic connecting portion at a substantially center from above. Since the lower holding member 8A and the upper holding member 8B are held so as to be sandwiched, the exterior material 9A is attached and held more stably and firmly. Then, a new roof structure is constructed by attaching a cover material 9B so as to cover the upper holding member 8B.

In the installation method of the retrofitted heat-insulating ceiling board of the first embodiment constructed in this way, C-shaped steel was used as the beam material 1, but not only this C-shaped steel but also various types such as L-shaped steel and groove-shaped steel. It is obvious that the heat insulating ceiling plate 4 can be easily and stably mounted while having sufficient mounting strength against the dimensional error of the beam material 1.
In addition, since the first to fourth steps constituting the mounting method of the present invention can be operated from either the indoor side or the beam material 1 side, even in ceiling construction such as a relatively large factory or gymnasium, It is possible to perform the ceiling construction in a relatively small warehouse or the like and appropriately correspond to the general procedure of the construction.

1 Beam material 11 Vertical piece (web)
12 Horizontal piece (lower flange)
121 Upward Piece 13 Upper Flange 2 Mounting Bracket 21 Decorative Surface Part 22 Engaging Groove 23 Hook Part 24 Additional Part 25 Screw 3 Joiner 31 Web 32 Lower Flange 33 Upper Flange 34 Extending Part 4 Thermal Insulating Ceiling 5 Fall Prevention Network Material 6 Field Material 7 Existing roof structure 8 Holding member 9 New roof structure

Claims (3)

A mounting method of a retrofitted thermal insulation ceiling plate in which a mounting bracket is attached to the beam material, a joiner is arranged so as to be orthogonal to the beam material, and a thermal insulation ceiling plate is arranged,
The beam material is a shape steel having a horizontal piece at least at the lower end of the vertical piece,
The mounting bracket includes an engaging groove that opens outward on the left and right ends of the decorative surface portion, a hook portion that can be hooked to the tip of the horizontal piece portion of the beam member in the installed state, and a horizontal piece of the beam member An attachment portion that can be attached to the base end of the portion and the lower end of the vertical piece portion from below,
The joiner comprises a lower flange, an upper flange, and a web connecting the centers thereof, and the lower flange is further provided with an extending portion protruding in the length direction,
The mounting bracket is rotated in a state in which the hook portion is hooked on the horizontal piece of the beam member, and the attachment portion is attached from below to the base end of the horizontal piece and the lower end of the vertical piece. A first step of fixing the mounting bracket by screwing from the side of the attachment portion to the lower end of the vertical piece portion;
A second step of installing the heat insulating ceiling plate while rotating between adjacent mounting brackets;
A third step of inserting the extending portions at both ends of the joiner into the engaging grooves at the ends of the respective mounting brackets and disposing the one surface side facing the side surface of the heat insulating ceiling plate;
A mounting method for a retrofitted heat insulating ceiling board, wherein a mounting step is provided on the other surface side of the provided joiner and a heat insulating ceiling board is attached.   The installation method of the post-insulation heat-insulating ceiling board according to claim 1, wherein a fall-preventing netting material is disposed along the lower surface of the heat-insulating ceiling board.   A ceiling structure constructed by the mounting method according to claim 1 or 2.

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