JP6723060B6 - Ceiling reinforcement structure and its construction method - Google Patents

Description

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

A system ceiling is known as a suspended ceiling structure. The system ceiling is provided with a ceiling structure frame formed by assembling a ceiling base material including a main bar and a cross bar in a grid pattern. The ceiling structure frame is supported via a suspension hanger (suspension metal fitting) on the lower end portion of a suspension bolt suspended from an upper structural body such as an upper floor slab or a rooftop slab. In the system ceiling, since the ceiling plate is attached to the ceiling structure frame by being locked, the ceiling plate can be easily removed, and the opening can be provided at any place on the ceiling surface.

In such a suspension type ceiling structure, it is known that a suspension bolt is compressed and reinforced against a thrust during an earthquake (for example, refer to Patent Document 1 or Patent Document 2). In the ceiling reinforcement structure of Patent Document 1, a groove-shaped member such as a grooved steel is provided along the suspension bolt, the upper end of the groove-shaped member is brought into contact with the upper structure 5, and the lower end of the groove-shaped member serves as a ceiling base material. It is connected to a support fitting. In the suspension structure of Patent Document 2, the suspension bolt is surrounded by a tubular member such as a steel pipe. The upper end of the tubular member is in contact with the upper slab surface, and the lower end of the tubular member is locked by the receiving nut screwed to the suspension bolt. With the above configuration, the compressive force acting on the suspension bolt is received by the groove-shaped member or the tubular member.

JP, 2014-9450, A JP, 2004-76433, A

By the way, as a measure for preventing the furniture such as a bookshelf, a display stand, and a rack from falling, it is known to provide a bracing bar between the furniture and the ceiling. However, in the system ceiling, since the ceiling plate does not have strength against the thrust, even if the strut bar is provided, the effect of preventing furniture falling cannot be obtained. Therefore, in a room with a system ceiling, the furniture may be prevented from falling by fixing the lower end of the furniture to the floor. However, in recent years, double floors are often used, and furniture cannot be fixed to the floor in many cases.

In the ceiling of Patent Document 1 or Patent Document 2, since strength against push-up can be obtained near the ceiling base material directly below the hanging bolt, it is possible to install a bracing rod in this portion. However, this restricts the installation position of the bracing rod, and greatly reduces the degree of freedom in furniture layout.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a ceiling reinforcement structure that has a high degree of freedom in the layout of furniture and can prevent the furniture from falling over, and a construction method thereof. ..

The invention according to claim 1 for solving the above-mentioned problems comprises a horizontal member bridged between an upper structure and a ceiling suspension member that supports a ceiling base material, and a holding member attached to the horizontal member. The pressing member is in contact with the back surface of the ceiling plate, which is a ceiling reinforcing structure.

With such a configuration, the ceiling plate can be pressed from the underside of the ceiling, so that the range in which the bracing rod can be installed is widened. This increases the degree of freedom in the layout of the furniture and prevents the furniture from falling over.

In the ceiling reinforcing structure of the present invention, the horizontal member is arranged above the ceiling plate with a gap, and the pressing member is located between the lower end surface of the horizontal member and the back surface of the ceiling plate. It is preferable to have a fitting portion that According to such a configuration, the horizontal member can be installed without interfering with the ceiling base material. Further, it is possible to increase the resistance to the thrust force that acts on the ceiling plate.

Further, in the ceiling reinforcing structure of the present invention, the pressing member, an upper end locking plate portion that abuts the upper surface of the horizontal member, and a hanging plate portion that hangs from the upper end locking plate portion to the back surface of the ceiling plate, A ceiling plate contact plate part that bends from the hanging plate part and contacts the back surface of the ceiling plate, a rising plate part that bends and rises from the ceiling plate contact plate part, and a bending part from the rising plate part. And a horizontal member contacting plate portion that contacts the lower surface of the horizontal member.

According to a fourth aspect of the present invention for solving the above-mentioned problems, a horizontal portion bridged between an upper structure and a ceiling suspension member that supports a ceiling base material, and a pressing portion that is integrally continuous with the horizontal portion are provided. The ceiling reinforcing structure is characterized in that the pressing portion is in contact with the back surface of the ceiling plate.

According to such a configuration, the ceiling plate can be pressed from the underside of the ceiling, similarly to the invention according to claim 1, so that the range in which the bracing rod can be installed is widened. This increases the degree of freedom in the layout of the furniture and prevents the furniture from falling over. Further, since the horizontal portion and the pressing portion are integrated and the reinforcing member for pushing up is formed, the step of attaching the pressing material to the horizontal member of claim 1 can be omitted.

Furthermore, the ceiling reinforcement structure of the present invention further includes a compression reinforcement material for compressing and reinforcing the ceiling suspension material, and a brace material, and the compression reinforcement material is arranged along the ceiling suspension material. Is preferred. According to such a configuration, the thrust force acting on the ceiling plate can be received by the compression reinforcement member and the brace member, so that the resistance force against the thrust force acting on the ceiling plate can be further increased. ..

Further, in the ceiling reinforcing structure of the present invention, the compression reinforcing member is attached to a reinforcing member main body arranged laterally of the ceiling hanging member along the ceiling hanging member and an upper end portion of the reinforcing member main body. The thing provided with the locking member locked with a ceiling suspension material is preferable. According to such a configuration, the compression reinforcing material only needs to be along the ceiling hanging material, and it is not necessary to insert the ceiling hanging material. Therefore, the compression reinforcing material can be easily installed.

According to a seventh aspect of the invention for solving the above-mentioned problems, a pressing member that abuts a back surface of a ceiling surface is attached to a horizontal member that is bridged between ceiling suspension members that support a ceiling base material from an upper structure. a preparation step of forming a raised reinforcing member, the bottom of the hanging hangers of the ceiling Tsuzai, a support bracket mounting step of mounting a wide brace mounting bracket than the suspended hanger, the holding member on the back surface of the ceiling plate And a reinforcing member installation step of fixing both end portions of the horizontal member to the adjacent brace mounting brackets in a state of being in contact with each other, and a method for constructing a ceiling reinforcing structure.

According to such a construction method, it is possible to easily perform the installation work and the positioning work of the push-up reinforcing member in the ceiling. Further, according to the ceiling reinforcing structure constructed by this construction method, the ceiling plate can be pressed from the underside of the ceiling, so that the range in which the bracing rod can be installed is widened. This increases the degree of freedom in the layout of the furniture and prevents the furniture from falling over.

ADVANTAGE OF THE INVENTION According to this invention, the flexibility of the layout of furniture becomes high and the fall of furniture can be prevented, and the outstanding effect of being exhibited is exhibited.

It is a front view showing a ceiling reinforcement structure concerning an embodiment of the present invention. It is the figure which showed the ceiling reinforcement structure which concerns on embodiment of this invention, (a) is an upper side expanded side view, (b) is a lower side expanded side view. It is a top view showing a ceiling reinforcement structure concerning an embodiment of the present invention. It is a principal part perspective view which showed the ceiling reinforcement structure which concerns on embodiment of this invention. It is the perspective view which showed the upper end part of the compression reinforcement material. It is the perspective view which showed the reinforcement member for thrusting. It is a figure for demonstrating the construction method of the ceiling reinforcement structure which concerns on embodiment of this invention, (a) is a state before construction, (b) is a support metal fitting process, (c) is a reinforcement member installation process. It is the front view respectively shown. It is the figure which showed the modification of the ceiling reinforcement structure which concerns on embodiment of this invention, (a) is a 1st modification and (b) is a side view which showed the 2nd modification. It is the perspective view which showed the modification of the push-up reinforcement member of the ceiling reinforcement structure which concerns on embodiment of this invention. It is the front view which showed the state which installed the reinforcement member for a push up which concerns on a modification.

A ceiling reinforcement structure and a construction method thereof according to an embodiment of the present invention will be described in detail with reference to the drawings. In the present embodiment, a case where the ceiling reinforcing structure 1 is adopted as a grid type system ceiling will be described as an example.

As shown in FIG. 1, the grid-type system ceiling includes, for example, a ceiling structure frame 4 in which a main bar 2 and a cross bar 3 which constitute a ceiling base material are assembled in a substantially lattice pattern at equal intervals. It is a suspended ceiling constructed by suspending and supporting the lower ends of a plurality of suspension bolts (ceiling suspension members) 6 suspended from a floor slab (upper structure) 5 via suspension hangers 7. A ceiling plate 8, a lighting device (not shown), an air conditioner (not shown), and the like are installed in each partition section partitioned by the ceiling structure frame 4. In the present embodiment, the suspension bolt 6 supports the connecting intersection of the main bar 2 and the cross bar 3.

The suspension hanger 7 is a ready-made member that is connected to the lower end portion of the suspension bolt 6 and sandwiches and fixes the upper edge portion of the main bar 2. As shown in FIG. 2B and FIG. 4, the suspension hanger 7 includes a hanger body 9 and a holding member (not shown). The hanger body 9 includes a horizontal plate portion 9a and a hanging plate portion 9b. The horizontal plate portion 9a is located at the upper end portion of the suspension hanger 7 and has a through hole through which the suspension bolt 6 penetrates. The suspension bolt 6 is inserted through the through hole, and the horizontal plate portion 9a is clamped by the nut N screwed onto the suspension bolt 6. As a result, the hanging hanger 7 is connected to the hanging bolt 6. The hanging plate portion 9b continuously extends downward from the horizontal plate portion 9a, and a holding member is provided at a lower end portion thereof. The holding member holds the upper edge portion of the main bar 2 together with the lower end portion of the hanging plate portion 9b.

A brace mounting bracket 11 is provided on the side of the hanging hanger 7. The brace mounting bracket 11 includes a pair of connecting plate portions 12 and a connecting portion 13 that connects the connecting plate portions 12. The connection plate portion 12 has a predetermined height dimension and is located on both sides of the hanging hanger 7. The side surface of the lower end portion of the brace member 50 described later is brought into contact with the connecting plate portion 12. The brace material 50 is connected to the connection plate portion 12 with screws or bolts. A screw hole (not shown) is formed in the lower end portion of the connection plate portion 12, and is screwed to the upper edge portion of the main bar 2.

As shown in FIG. 3, the connecting portion 13 is a plate-shaped member having a U-shape in plan view and is continuous with the connecting plate portion 12. A horizontal plate portion 13a is provided at the upper end of the connecting portion 13. The connecting portion 13 is arranged so as to surround the hanging hanger 7, and the horizontal plate portion 13 a of the connecting portion 13 overlaps with the horizontal plate portion 9 a of the hanging hanger 7. The horizontal plate portion 13a has a cutout portion 13b (see FIG. 4) through which the suspension bolt 6 is inserted. The hanging bolt 6 is inserted through the notch portion 13b, and the horizontal plate portion 9a and the horizontal plate portion 13a are sandwiched by the nut N screwed to the hanging bolt 6. As a result, the brace attachment 11 is fixed to the lower end of the suspension bolt 6 integrally with the suspension hanger 7. The brace attachment 11 can be installed with the connection plate portion 12 either in the direction along the main bar 2 or in the direction along the cross bar 3.

As shown in FIG. 1, the ceiling reinforcing structure 1 according to the present embodiment includes a horizontal member 20, a pressing member 30, a compression reinforcing member 40, and a brace member 50. As shown in FIGS. 2 to 4, the horizontal member 20 is made of grooved steel with a lip, and is bridged between the suspension bolts 6 and 6. Specifically, the horizontal member 20 is screwed with the bottom surface portion 21 of the groove abutting the connection plate portion 12 of the brace mounting bracket 11 fixed to the lower end portion of the hanging bolt 6 (see FIG. 4). .. The horizontal member 20 is installed above the ceiling plate 8 at a height spaced from the back surface so as not to interfere with the main bar 2 or the cross bar 3.

The pressing member 30 is a member attached to the horizontal member 20 and is in contact with the back surface of the ceiling plate 8. As shown in FIGS. 2B and 4, the pressing member 30 is made of a single plate member, and includes an upper end locking plate portion 31, a hanging plate portion 32, a ceiling plate contacting plate portion 33, and a rising plate portion. 34 and a horizontal member contact plate portion 35. The upper end locking plate portion 31 is located at the upper end portion of the pressing member 30 and is in contact with the upper end surface of the horizontal member 20. The hanging plate portion 32 bends at a right angle from the upper end locking plate portion 31 and hangs down to the back surface of the ceiling plate 8. The hanging plate portion 32 is in contact with the pair of lip portions 22 of the horizontal member 20, and the hanging plate portion 32 and the lip portion 22 are screwed. The ceiling plate contact plate portion 33 is bent at a right angle from the lower end portion of the hanging plate portion 32 and extends in the horizontal direction. The ceiling plate contact plate portion 33 is in contact with the back surface of the ceiling plate 8. The rising plate portion 34 bends at a right angle from the ceiling plate contacting plate portion 33 and rises, and extends to the lower surface of the bottom surface portion 21 of the horizontal member 20. The horizontal member contact plate portion 35 is bent at a right angle from the upper end of the rising plate portion 34 and extends in the horizontal direction. The horizontal member contacting plate portion 35 is in contact with the lower surface of the horizontal member 20. The ceiling plate abutting plate portion 33, the rising plate portion 34, and the horizontal member abutting plate portion 35 form a fitting portion located between the lower end surface of the horizontal member 20 and the back surface of the ceiling plate 8. ..

As shown in FIGS. 1 and 3, the pressing member 30 is arranged above the furniture 15 arranged in the room, and the strut bar 16 is brought into contact with the surface of the ceiling plate 8 on which the pressing member 30 is located. You can The strut bar 16 is installed between the upper surface of the furniture 15 and the surface of the ceiling plate 8. The pressing member 30 as described above is fixed to the horizontal member 20, and the reinforcing member 24 for pushing up is formed.

As shown in FIGS. 2 and 5, the compression reinforcement member 40 is a member that compressively reinforces the suspension bolt 6. The compression reinforcement 40 includes a reinforcement body 41 and a locking member 42. The reinforcing material main body 41 is made of a steel material such as lip groove type steel, and is arranged along the suspension bolt 6 on the side of the suspension bolt 6. The lower end of the reinforcing material main body 41 is welded or screwed to the connecting portion 13 of the brace mounting bracket 11 (see FIG. 2B). As shown in FIG. 2A and FIG. 5, the locking member 42 includes a contact portion 43 and a pair of locking pieces 44, 44. The contact portion 43 is inserted into the upper end portion of the reinforcing material main body 41, and the upper end serves as a contact surface 45 with the lower surface of the upper structure 5. The locking pieces 44, 44 sandwich the suspension bolt 6 from both left and right sides, and are arranged offset in the vertical direction. Since the locking pieces 44, 44 are vertically offset, the suspension bolt 6 can be inserted into the locking pieces 44, 44 by inclining the compression reinforcing member 40.

The reinforcing material body 41 is not limited to the lip groove type steel, and may be a hollow square pipe, an extruded shape member, a reinforcing bar, or the like. Although it is preferable that the reinforcing material main body 41 has a higher compressive strength than the suspension bolt 6, the reinforcing material body 41 can be compressed and reinforced even if the compressive strength is equal to or lower than that of the suspension bolt 6.

As shown in FIG. 1, the brace member 50 is made of, for example, channel steel, and is fixed to the connection plate portion 12 of the brace mounting bracket 11. Specifically, the side surface of the lower end portion of the brace member 50 is in contact with the connection plate portion 12 and is connected to the connection plate portion 12 with a screw or a bolt. The upper end portion (not shown) of the brace member 50 is fixed to the upper portion of the suspension bolt 6 or the upper structure 5.

Next, with reference to FIGS. 6 and 7, a method of constructing the ceiling reinforcing structure 1 having the above configuration will be described. The method for constructing the ceiling reinforcement structure 1 includes a preparation step, a brace attachment fitting attachment step, and a reinforcement member installation step.

The preparation step is a step of attaching the pressing member 30 to the horizontal member 20 and forming the push-up reinforcing member 24. As shown in FIG. 6, in this step, the upper end locking plate portion 31 of the pressing member 30 is locked at a predetermined position on the upper end surface of the horizontal member 20, and the hanging plate portion 32 of the pressing member 30 is moved to the lip of the horizontal member 20. A screw V is driven into the portion 22 and fixed.

The brace mounting bracket mounting step is a step of mounting the brace mounting bracket 11 wider than the hanging hanger 7 on the hanging hanger 7 under the hanging bolt 6 in the state of FIG. In the brace mounting metal fitting step, the upper nut N fixing the hanging hanger 7 is loosened, and the horizontal plate portion 9a of the hanging hanger 7 is overlaid with the horizontal plate portion 13a of the connecting portion 13. Tighten the nut N and attach the brace mounting bracket 11 to the suspension hanger 7. Further, the lower end portion of the connecting plate portion 12 is fixed to the upper edge portion of the main bar 2 with a screw so that the brace mounting bracket 11 also supports the ceiling structure frame 4 (see FIG. 7B).

The reinforcing member installation step is a step of installing the push-up reinforcing member 24. As shown in (c) of FIG. 7, the push-up reinforcing member 24 has the pressing member 30 in contact with the back surface of the ceiling plate 8 and the horizontal member 20 has both end portions of the brace mounting brackets 11 adjacent to each other. It fixes to the connection board part 12, respectively. In this way, the pressing member 30 is brought into contact with the back surface of the ceiling plate 8 and the horizontal member 20 is fixed, so that the positioning in the height direction can be easily performed. Further, since the pressing member 30 is fixed to the horizontal member 20 in advance and the push-up reinforcing member 24 is formed, the work in the ceiling can be reduced and the construction becomes easy. In addition, when adding the ceiling reinforcement structure 1 to an existing ceiling, the ceiling plate 8 adjacent to the ceiling plate 8 which is pressed by the pressing material 30 is removed, and the push-up reinforcing member 24 is installed using the opening. Then, it can be easily installed. In this case, it is preferable that the screws for attaching the horizontal member 20 to the brace mounting bracket 11 are installed from the brace mounting bracket 11 side. In this way, screws can be driven from the side of the removed ceiling plate 8.

In the step of installing the reinforcing member, the compression reinforcing material 40 and the brace material 50 are also installed. The compression reinforcement material 40 and the brace material 50 are installed by a normal construction method.

According to the above-described ceiling reinforcing structure 1 and the construction method, the ceiling plate 8 can be pressed from the back side of the ceiling by the pressing member 30, so that the ceiling plate 8 does not float up and the resistance force against the thrust is exerted at that portion. Can be secured. Since the pressing member 30 can be installed between the hanging bolts 6 and 6 adjacent to each other, the range in which the bracing rod can be installed is widened. This increases the degree of freedom in the layout of the furniture and prevents the furniture from falling over. Further, if a horizontal member is further provided between the horizontal members 20 and the pressing member 30 is attached, the pressing member 30 can be installed at any place on the ceiling surface.

In the present embodiment, since the horizontal members 20 are arranged above the ceiling plate 8 with a gap, the horizontal members 20 can be installed without interfering with the ceiling structure frame 4. Further, since the pressing member 30 is fitted between the lower end surface of the horizontal member 20 and the back surface of the ceiling plate 8, it is possible to increase the resistance force against the thrust force acting on the ceiling plate 8.

Further, since the pressing member 30 includes the upper end locking plate portion 31 and the hanging plate portion 32, the hanging plate portion 32 is locked in a state where the upper end locking plate portion 31 is locked to the upper end surface of the horizontal member 20. The pressing member 30 can be easily fixed by hitting a screw V on the.

Furthermore, in the present embodiment, since the compression reinforcing member 40 and the brace member 50 are further provided, the thrust force received by the thrust reinforcing member 24 is transmitted to the upper structure 5 without passing through the hanging bolt 6. can do. Therefore, it is possible to further increase the resistance force against the thrust force that acts on the ceiling plate 8 and prevent the suspension bolt 6 from being compressed and deformed.

Although the embodiments for carrying out the present invention have been described above, the present invention is not limited to the above embodiments, and design changes such as materials, shapes, and sizes can be appropriately made without departing from the spirit of the present invention. Is. For example, the shapes of the horizontal member 20 and the pressing member 30 (the push-up reinforcing member 24) are not limited to those in the above embodiment. FIG. 8 shows another form of the horizontal member 20 and the pressing member 30. In the horizontal member 20 of FIG. 8A, a wooden square member 23 is inserted inside the groove. A screw V is driven from the hanging plate portion 32 of the pressing member 30 toward the square member 23, and the pressing member 30 and the square member 23 are fixed. According to such a configuration, the horizontal member 20 is reinforced by the square members 23, and the resistance force against the thrust force can be further increased.

On the other hand, in the pressing member 130 of FIG. 8B, the ceiling plate contact plate portion 133 at the lower end portion of the hanging plate portion 32 is bent not to the lower side of the horizontal member 20 but to the half end side so that the ceiling plate 8 Is in contact with the back side of. A rising plate part 134 stands up from the tip of the ceiling plate abutting plate part 133. A horizontal plate portion 135 that bends toward the horizontal member 20 is provided from the upper end of the rising plate portion 134. A rising plate portion 136 that comes into contact with the hanging plate portion 32 is provided at the tip of the horizontal flat plate portion 135 (on the hanging plate portion 32 side). A screw V is driven into the rising plate portion 136 and the hanging plate portion 32, and is screwed to the lower lip portion 22 of the horizontal member 20. With such a configuration, the ceiling plate 8 can be pressed at a position displaced from the lower side of the horizontal member 20, so that the installation position of the strut bar can be further widened.

Further, in the above-described embodiment, the horizontal member 20 and the pressing member 30 are formed as separate members, and the push-up reinforcing member 24 is formed by attaching the pressing member 30 to the horizontal member 20, but the present invention is not limited to this. It is not something that will be done. As shown in FIG. 9, the push-up reinforcing member 224 may integrally include a horizontal portion 220 corresponding to the horizontal member 20 and a holding portion 230 corresponding to the holding member 30. The holding portion 230 is formed continuously from the lower surface 221 of the horizontal portion 220, and includes a hanging plate portion 231, a ceiling plate contacting plate portion 232, and a rising plate portion 233 that are bent from the lower surface 221. The hanging plate part 231, the ceiling plate contacting plate part 232, and the rising plate part 233 have a U-shaped cross-section that opens upwards together. The holding portion 230 extends in the longitudinal direction of the horizontal portion 220. At a portion where the crossbar 3 intersects below the horizontal portion 220, the holding portion 230 is not formed, and a passage space 235 for the crossbar 3 is formed. The passage space 235 is formed in the longitudinal middle portion of the horizontal portion 220. As shown in FIG. 10, according to the push-up reinforcing member 224 having such a configuration, when manufacturing the push-up reinforcing member 224, the step of attaching the pressing member to the horizontal member can be omitted. The push-up reinforcing member 224 is installed on the back of the ceiling only by fixing both ends of the horizontal portion 220 to the connecting plate 12 of the brace mounting bracket 11, and the pressing portion 230 is brought into contact with the back surface of the ceiling plate 8. .. Since the crossbar 3 protruding to the back side of the ceiling plate 8 is located in the passage space 235, it does not interfere with the push-up reinforcing member 224. In FIG. 10, the push-up reinforcing member 224 has the same configuration as that of the above-described embodiment, and thus the same members are designated by the same reference numerals and the description thereof will be omitted.

The shape of the pressing portion 230 is not limited to the above shape. For example, the hanging plate portion may have a shape that continuously hangs from the side surface of the horizontal portion in a state of being flush with each other. Further, the formation position of the passage space of the crossbar is not limited to the intermediate portion in the longitudinal direction of the horizontal portion, but is formed corresponding to the position of the crossbar. For example, when the push-up reinforcing member straddles two crossbars, a passage space is formed at two divided positions obtained by dividing the length of the horizontal portion into three equal parts.

In the above-described embodiment, the case where the ceiling reinforcing structure 1 is adopted as the system ceiling has been described as an example, but the present invention can of course be applied to a suspended ceiling other than the system ceiling. Further, the position where the horizontal member 20 is attached is not limited to the brace attachment fitting 11, and may be the compression reinforcement material 40, the brace material 50, or another fitting.

1 Ceiling reinforcement structure 2 Main bar (ceiling base material)
3 Crossbar (ceiling base material)
5 Upper structure 6 Suspension bolt (ceiling suspension material)
7 Hanging Hanger 8 Ceiling Plate 11 Brace Mounting Bracket 20 Horizontal Material 24 Reinforcing Member 30 Push-up Material 31 Upper End Locking Plate Part 32 Hanging Plate Part 33 Ceiling Plate Abutting Plate Part 34 Standing Plate Part 35 Horizontal Material Abutting Plate Part 40 Compression reinforcement material 41 Reinforcement material body 42 Locking member 50 Brace material

Claims (7)

A horizontal member hung from the upper structure between the ceiling suspension materials that support the ceiling base material,
A pressing member attached to the horizontal member,
The above-mentioned presser material is in contact with the back surface of the ceiling plate. The horizontal member is arranged above the ceiling plate with a gap,
The ceiling reinforcing structure according to claim 1, wherein the pressing member includes a fitting portion located between a lower end surface of the horizontal member and a back surface of the ceiling plate. The pressing member includes an upper end locking plate portion that abuts the upper surface of the horizontal member, a hanging plate portion that hangs from the upper end locking plate portion to the back surface of the ceiling plate, and the ceiling plate that is bent from the hanging plate portion. A ceiling plate contact plate portion that contacts the back surface of the plate, a rising plate portion that bends and rises from the ceiling plate contact plate portion, and a horizontal that bends from the rising plate portion and contacts the lower surface of the horizontal member. The ceiling reinforcing structure according to claim 2, further comprising: a material contacting plate portion. A horizontal part that is laid between the ceiling suspension material that supports the ceiling base material from the upper structure,
A pressing portion that is continuous with the horizontal portion,
The ceiling reinforcing structure, wherein the pressing portion is in contact with the back surface of the ceiling plate. A compression reinforcement member for compressively reinforcing the ceiling suspension member, and a brace member,
The ceiling reinforcement structure according to any one of claims 1 to 4, wherein the compression reinforcement member is arranged along the ceiling suspension member. The compression reinforcement member is attached to the upper end portion of the reinforcement main body, which is arranged laterally of the ceiling suspension member along the ceiling suspension member, and is locked to the ceiling suspension member. The member is provided with the member, The ceiling reinforcement structure of Claim 5 characterized by the above-mentioned. A preparatory step of forming a push-up reinforcing member by attaching a holding member that abuts the back surface of the ceiling surface to a horizontal member that is bridged between ceiling suspension members that support the ceiling base material from the upper structure,
A brace mounting bracket mounting step of mounting a brace mounting bracket that is wider than the hanging hanger to the hanging hanger below the ceiling hanging material,
In a state where the pressing member is brought into contact with the rear surface of the ceiling plate, the ceiling, characterized in that it comprises a and a reinforcing member installed step of fixing each of said brace mounting bracket adjacent the opposite ends of the horizontal member Reinforcement structure construction method.

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