Reinforcement members and ceiling structure

Abstract

The present invention provides a reinforcing member and a ceiling structure that can suitably reinforce the suspension member 10. [Solution] A reinforcing member 10 that is suspended from a slab 2 and supports a ceiling material, comprising: a mounting portion 120 attached to the suspension member 10 and receiving force from a brace 40 extending diagonally upward from the ceiling material; and a plate 110 fixed to the mounting portion 120 and formed to extend horizontally, at least in the direction in which the brace 40 extends, and in contact with the lower surface of the slab 2 when the mounting portion 120 is attached to the suspension member 10.

Description

Technical Field

[0001] The present invention relates to a reinforcing member for reinforcing a hanging member of a ceiling material and a ceiling structure technology.

Background Art

[0002] Conventionally, the technology related to the hanging member of the ceiling material has been known. For example, it is as described in Patent Document 1.

[0003] Patent Document 1 describes a technology for reinforcing a suspension bolt that supports a ceiling material from the upper floor slab of a building. In the invention described in Patent Document 1, a mounting bracket for connecting the upper end portion of a bracing member for anti-vibration is provided for the suspension bolt.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] Here, a heat insulation layer may be formed on the lower surface of the upper floor slab by spraying a heat insulating material such as urethane foam. In such a case, a gap for forming the heat insulation layer is formed between the lower surface of the upper floor slab and the upper end portion of the bracing member. When such a gap is formed, the distance from the lower surface of the upper floor slab to the upper end portion of the bracing member becomes large, and there is a risk that the bearing capacity of the suspension point of the suspension bolt decreases.

[0006] The present invention has been made in view of the above situation, and the problem to be solved is to provide a reinforcing member and a ceiling structure that can preferably reinforce the hanging member.

Means for Solving the Problems

[0007] The problems that this invention aims to solve are as described above, and the means for solving these problems will now be explained.

[0008] In other words, claim 1 provides a reinforcing member for reinforcing a suspension member that is suspended from a slab and supports a ceiling material, comprising: a mounting portion attached to the suspension member and receiving force from a brace extending diagonally upward from the ceiling material; and a contact portion fixed to the mounting portion and formed to extend horizontally, at least in the direction in which the brace extends, and which contacts the lower surface of the slab when the mounting portion is attached to the suspension member.

[0009] Claim 2 provides a fixing portion for fixing the contact portion to the slab.

[0010] In claim 3, the contact portion has a hole that penetrates in the vertical direction, and the fixing portion comprises an engaged portion that is formed to pass through the hole and is embedded in the slab so as to overlap with the hole when viewed from the bottom, and an engaging portion that is formed to be engaged with the engaged portion and contacts the lower surface of the contact portion when engaged with the engaged portion.

[0011] Claim 4 provides a connecting portion that connects the abutment portion and the mounting portion such that the mounting portion is located below the lower surface of the abutment portion with a gap between them.

[0012] In claim 5, the connecting portion is provided in multiple locations so as to extend radially along the horizontal direction from the portion connected to the mounting portion.

[0013] In claim 6, the connecting portion is formed in a plate shape that extends downward from the lower surface of the contact portion.

[0014] In claim 7, the contact portion is formed in a circular shape when viewed from the bottom.

[0015] In claim 8, it comprises a reinforcing member according to any one of claims 1 to 7, the suspension member, and a brace installed between the slab and the ceiling material and connected to the suspension member below the reinforcing member.

[0016] As an effect of the present invention, the following effects are achieved.

[0017] In the present invention, the suspension member can be suitably reinforced.

Brief Description of the Drawings

[0018] [Figure 1] A front view showing a ceiling structure including a reinforcing member according to an embodiment of the present invention. [Figure 2] (a) A front view showing the main body of the reinforcing member. (b) A bottom view showing the main body. [Figure 3] A front sectional view showing the ceiling structure. [Figure 4] (a) A front view showing how the main body is attached to the slab. (b) A front view showing the state where the main body is attached to the slab. [Figure 5] (a) A front view showing how construction anchors are provided on the slab with the main body attached to the slab. (b) A front view showing how fixing bolts are fixed to the construction anchors.

Modes for Carrying Out the Invention

[0019] In the following description, the vertical direction, the horizontal direction, and the front - rear direction are defined according to the arrows shown in the drawings.

[0020] Hereinafter, the ceiling structure 1 according to the present embodiment will be described with reference to FIGS. 1 to 3.

[0021] The ceiling structure 1 is the structure of the ceiling in a building. In the ceiling structure 1, a ceiling material (not shown) is supported via a suspension member 10 fixed to a slab 2 which is the building's framework (structure). A detailed description of the suspension member 10 will be given later. In FIGS. 1 and 3, a part of the ceiling structure 1 (the part on the slab 2 side) is shown.

[0022] The slab 2 is formed by placing concrete 2b on a deck plate 2a that constitutes the lower surface of the slab 2. As shown in FIGS. 1 and 3, a heat insulating material 3 is sprayed onto the lower surface of the slab 2 to form a heat insulating layer. In FIGS. 1 and 3, the heat insulating material 3 is indicated by a two-dot chain line. By forming the heat insulating layer, heat insulating properties can be imparted to the lower surface of the slab 2. As the heat insulating material 3, urethane foam or the like can be adopted.

[0023] The ceiling structure 1 includes a suspension member 10, a fixing fitting 20, a nut 30, a brace 40, and a reinforcing member 100.

[0024] The suspension member 10 is suspended from the slab 2 and supports a ceiling material (not shown). A plurality of suspension members 10 are arranged at a predetermined interval in the horizontal direction. In the illustrated example, one suspension member 10 is shown. The suspension member 10 includes an insert 11 and a suspension bolt 12.

[0025] The insert 11 shown in FIGS. 1 and 3 is fixed to the slab 2. A portion of the insert 11 except for the lower end portion is embedded in the slab 2. Specifically, the insert 11 is provided so as to penetrate the deck plate 2a before the concrete 2b is placed, vertically. In this state, the lower end portion of the insert 11 protrudes downward from the lower surface of the deck plate 2a. By placing the concrete 2b on the upper surface of the deck plate 2a in this state, the insert 11 is embedded in the slab 2. The insert 11 according to the present embodiment is a female insert having a female thread formed at the lower end portion capable of fixing the suspension bolt 12 described later.

[0026] The suspension bolt 12 supports the ceiling material (not shown). The suspension bolt 12 is formed in an elongated shape and has male threads along its entire length. The suspension bolt 12 is fixed to the insert 11 by the upper end engaging with the female thread of the insert 11. The lower end of the suspension bolt 12 is fixed to the base material of the ceiling material (e.g., a ceiling joist support) via a hanger (not shown) or the like.

[0027] The fixing bracket 20 shown in Figures 1 and 3 connects the suspension bolt 12 to the brace 40, which will be described later. The fixing bracket 20 is formed in a long shape in the left-right direction. The fixing bracket 20 is formed in a roughly plate shape with the plate surface facing the front-back direction.

[0028] The fixing bracket 20 is formed from a metal plate-shaped member that has been appropriately bent. In this embodiment, the fixing bracket 20 is formed by combining a pair of plate-shaped members. The pair of plate-shaped members are formed in a symmetrical shape in the front-to-back direction. Note that in Figure 3, only the rear member of the pair of front-to-back members is shown. The fixing bracket 20 is provided with an insertion hole 21 and a fixing hole 22.

[0029] The through-holes 21 shown in Figures 2 and 3 are holes through which the suspension bolts 12 are inserted. The through-holes 21 are formed to penetrate the fixing bracket 20 in the vertical direction. The through-holes 21 are formed by combining recesses formed on the opposing surfaces of a pair of plate-shaped pieces.

[0030] The fixing holes 22 are holes through which the brace 40 can be fixed. The fixing holes 22 are formed so as to penetrate the fixing bracket 20 in the front-to-back direction. The fixing holes 22 are formed on both the left-to-right sides of the fixing bracket 20. A fastener 23 consisting of a bolt and nut is inserted through the fixing holes 22.

[0031] In this embodiment, the fixing bracket 20 can be attached to the suspension bolt 12 by sandwiching the suspension bolt 12 between a pair of members constituting the fixing bracket 20 and fixing the pair of members with a fixing device 23.

[0032] The nut 30 engages with the suspension bolt 12. The nut 30 is located below the fixing bracket 20. In this embodiment, the fixing bracket 20 and the reinforcing member 100 are fixed to the suspension bolt 12 by engaging the nut 30 with the suspension bolt 12. A detailed explanation of how each of the above-mentioned members is fixed will be given later.

[0033] The brace 40 shown in Figures 1 and 3 is installed between the fixing bracket 20 and the member on the ceiling material (furring strip) side. The brace 40 is formed in a long shape and is positioned so that its longitudinal direction is inclined with respect to the vertical direction (extending diagonally). In the example shown, the brace 40 is positioned so that it is inclined to the left as it approaches the upper end. The upper end of the brace 40 is fixed to the fixing bracket 20 by a fixing device 23. The lower end of the brace 40 (not shown) is fixed to the ceiling material base material (e.g., furring strip support) via an appropriate member.

[0034] In the ceiling structure 1 described above, for example, if the ceiling material shakes horizontally during an earthquake, the forces generated by the shaking (horizontal and vertical forces) are transmitted to the slab 2 side via the brace 40 and suspension members 10, etc. In Figure 1, the force transmitted along the longitudinal direction of the brace 40 is shown by a thick (solid) arrow, and the horizontal force at the upper end of the brace 40 is shown by a thick (dashed) arrow. The additional bending moment due to the horizontal force at the upper end of the brace 40 is shown by a filled-in arrow.

[0035] In this case, in the ceiling structure 1, a space is formed between the slab 2 and the upper end (fixing bracket 20) of the brace 40 to form an insulating layer of insulating material 3. In this case, the additional bending moment due to the horizontal force at the upper end of the brace 40 acting on the insert 11 becomes large, so it is necessary to reinforce the insert 11 and the suspension bolt 12 (i.e., the suspension member 10).

[0036] In this embodiment, the suspension member 10 is reinforced by placing the reinforcing member 100 in the above-mentioned space. The details of the reinforcing member 100 will be described below.

[0037] The reinforcing member 100 shown in Figures 1 to 3 reinforces the suspension member 10. The reinforcing member 100 is made of, for example, metal. The reinforcing member 100 is attached to the suspension bolt 12 of the suspension member 10. The reinforcing member 100 is positioned between the slab 2 and the fixing bracket 20. The reinforcing member 100 comprises a plate 110, a mounting portion 120, a rib 130, an anchor 140, and fixing bolts 150.

[0038] The plate 110 shown in Figures 1 to 3 constitutes the upper part (the part on the slab 2 side) of the reinforcing member 100. The plate 110 is formed in a substantially plate shape with its surface oriented vertically. As shown in Figure 2(b), in this embodiment, the plate 110 is formed in a substantially circular shape when viewed from the bottom. That is, in this embodiment, the plate 110 is formed in a substantially disc shape. The plate 110 has a first insertion hole 111 and a second insertion hole 112 formed therein.

[0039] The first insertion hole 111 shown in Figures 2 and 3 is through which the suspension bolt 12 is inserted. The first insertion hole 111 is formed approximately in the center of the bottom surface of the plate 110, penetrating the plate 110 in the thickness direction (vertical direction).

[0040] The second insertion hole 112 is through which a fixing bolt 150, described later, is inserted. The second insertion hole 112 is formed on the radially outer end (edge) side of the plate 110, penetrating the plate 110 in the thickness direction. Multiple second insertion holes 112 (four in this embodiment) are formed. As shown in Figure 2(b), each second insertion hole 112 is formed at a constant interval in the circumferential direction of the plate 110 when viewed from the bottom. In this embodiment, each second insertion hole 112 is formed such that the phase difference between adjacent second insertion holes 112 in the circumferential direction when viewed from the bottom is approximately 90°.

[0041] The mounting portion 120 is attached to the suspension bolt 12. The mounting portion 120 is formed in a vertically elongated column shape (hexagonal column shape in the illustrated example). The mounting portion 120 has a threaded hole 121 that penetrates the mounting portion 120 in the vertical direction. The threaded hole 121 constitutes a female thread that can engage with the suspension bolt 12.

[0042] The mounting portion 120 is provided at the center of the bottom view on the lower surface of the plate 110. More specifically, the mounting portion 120 is positioned such that the screw hole 121 overlaps with the first insertion hole 111 of the plate 110 when viewed in the vertical direction. The mounting portion 120 is fixed to the lower surface of the plate 110 via a rib 130, which will be described later.

[0043] The rib 130 connects the lower surface of the plate 110 to the side surface of the mounting portion 120. The rib 130 is formed in a substantially plate shape with its plate surface facing the circumferential direction of the plate 110. The rib 130 is formed to extend downward from the lower surface of the plate 110. The rib 130 is also formed to extend along the radial direction of the plate 110. More specifically, the rib 130 is formed to extend from the side surface of the mounting portion 120 toward the radially outer end (edge) of the plate 110. The rib 130 is fixed to the lower surface of the plate 110 and the side surface of the mounting portion 120, for example, by welding.

[0044] Multiple ribs 130 (four in this embodiment) are provided. As shown in Figure 2(b), each rib 130 is formed at a constant interval in the circumferential direction of the plate 110 when viewed from the bottom. In this embodiment, the ribs 130 are arranged such that the phase difference between adjacent ribs 130 in the circumferential direction when viewed from the bottom is approximately 90°. In this embodiment, the four ribs 130 are arranged in a roughly cross shape (radially) so that they extend approximately in the front-to-back direction and the left-to-right direction. In this embodiment, each second insertion hole 112 of the plate 110 is positioned between adjacent ribs 130 in the circumferential direction.

[0045] In this embodiment, the lower surface of the plate 110 and the side surface of the mounting portion 120 are connected by the four ribs 130 described above. In this embodiment, by connecting the plate 110 and the mounting portion 120 using multiple ribs 130, the strength of the reinforcing member 100 can be improved. Furthermore, as shown in Figure 3, the ribs 130 in this embodiment connect the plate 110 and the mounting portion 120 such that a predetermined gap S is formed between the lower surface of the plate 110 and the upper end of the mounting portion 120.

[0046] The plate 110, mounting portion 120, and rib 130 are integrally fixed to each other by welding or the like. In the following, the plate 110, mounting portion 120, and rib 130, which are integrally formed to each other, may be referred to as the "main body portion 101".

[0047] The anchor 140 shown in Figures 1 and 3 is for attaching the fixing bolt 150, which will be described later. The anchor 140 is formed in a substantially cylindrical shape that extends in the vertical direction. The outer diameter of the anchor 140 is smaller than the inner diameter of the second insertion hole 112 of the plate 110. The lower end of the anchor 140 has a female thread (not shown) to which the fixing bolt 150, which will be described later, can be fixed.

[0048] The anchors 140 are provided at positions corresponding to the second insertion holes 112 of the plate 110 (four in this embodiment). More specifically, each anchor 140 is positioned so as to overlap with each second insertion hole 112 when viewed from below (see Figure 2(b)). The anchors 140 are not provided before the concrete 2b is poured, as with the inserts 11, but are driven into the slab 2 from the underside after construction (after the concrete 2b has hardened) to provide support to the slab 2. The installation of the anchors 140 will be described later.

[0049] The fixing bolt 150 secures the plate 110 to the slab 2 (anchor 140). The fixing bolt 150 secures the plate 110 to the slab 2 by engaging with the anchor 140 while inserted through the second insertion hole 112 of the plate 110.

[0050] The ceiling structure 1 according to this embodiment has been described above. Below, using Figures 4 and 5, the procedure for attaching each component, such as the reinforcing member 100, during the construction of the ceiling structure 1 will be explained. Note that the attachment of each component is carried out before spraying the insulation material 3 onto the slab 2.

[0051] The worker constructing the ceiling structure 1 first attaches the main body 101 and suspension bolts 12 of the reinforcing member 100 to the insert 11 embedded in the slab 2, as shown in Figure 4(a). In this embodiment, the main body 101 and suspension bolts 12 can be attached to the lower surface of the slab 2 by engaging the suspension bolts 12 with the mounting portion 120 of the main body 101 and then engaging the suspension bolts 12 with the insert 11.

[0052] Figure 4(b) shows the main body 101 and suspension bolts 12 attached to the lower surface of the slab 2. In this state, the upper surface of the plate 110 abuts against the lower surface of the slab 2. As shown in Figure 4, the lower end of the insert 11 protrudes downward from the lower surface of the slab 2. As shown in Figures 3 and 4, in this embodiment, a gap S is formed between the lower surface of the plate 110 and the upper end of the mounting portion 120. Therefore, even if the lower end of the insert 11 is located below the lower surface of the plate 110, interference between the lower end of the insert 11 and the mounting portion 120 can be suppressed.

[0053] Next, the worker attaches the anchors 140 to the underside of the slab 2, as shown in Figure 5(a). At this time, the worker creates holes in the underside of the slab 2 at positions corresponding to each of the second insertion holes 112 of the plate 110, and then attaches each anchor 140 by embedding it into each hole.

[0054] Specifically, with the main body 101 attached to the slab 2, the worker can create holes in the slab 2 by passing a tool such as a drill through each second insertion hole 112 of the plate 110. The worker can also attach each anchor 140 to the underside of the slab 2 by inserting each anchor 140 through each second insertion hole 112 and driving the anchor 140 into the holes.

[0055] Next, the worker engages the fixing bolts 150 with each anchor 140, as shown in Figure 5(b). This allows the plate 110 to be fixed to the slab 2. With this, the attachment of the reinforcing member 100 to the slab 2 is completed.

[0056] Next, the worker sprays the insulation material 3 onto the slab 2 to form an insulating layer of the insulation material 3 below the slab 2. In this embodiment, the insulating layer is formed from the bottom surface of the slab 2 to the lower end of the reinforcing member 100 (mounting portion 120) (see Figures 1 and 3).

[0057] In this embodiment, the reinforcing member 100 is formed by a substantially disc-shaped plate 110 and substantially plate-shaped ribs 130 extending radially in a cross shape (radially) from the plate 110. With this configuration, the space partitioned by the plate 110 and the ribs 130 can be filled with the heat insulating material 3. This prevents the formation of the heat insulating layer from being hindered by the provision of the reinforcing member 100, and ensures heat insulating performance.

[0058] Next, as shown in Figures 1 and 3, the worker inserts the fixing bracket 20 onto the suspension bolt 12 extending downward from the reinforcing member 100 (mounting portion 120), and engages the nut 30 with the suspension bolt 12 from the lower side of the fixing bracket 20. In this way, the fixing bracket 20 and the reinforcing member 100 can be fixed to the suspension member 10 by sandwiching them from above and below between the slab 2 and the nut 30.

[0059] In the example described above, the insulation material 3 was sprayed before attaching the fixing brackets 20, etc., but the method is not limited to this. For example, it is also possible to spray the insulation material 3 after attaching the fixing brackets 20 and nuts 30.

[0060] As shown in Figures 1 and 3, when the reinforcing member 100, fixing bracket 20, and nut 30 are fixed to the suspension bolt 12, the upper end of the fixing bracket 20 abuts against the lower end of the mounting portion 120 of the reinforcing member 100. Also, the upper surface of the plate 110 of the reinforcing member 100 abuts against the lower surface of the slab 2. In this state, an insulating layer is formed by the insulating material 3 between the slab 2 and the fixing bracket 20 (the portion where the reinforcing member 100 is placed).

[0061] In this state, the upper end of the brace 40 can be fixed to the fixing bracket 20. The example shows the brace 40 being fixed to the right-hand fixing hole 22 of the fixing bracket 20. Although not explained here, the lower end of the brace 40 is fixed to the base material of the ceiling material.

[0062] In this embodiment, the suspension member 10 can be reinforced by providing the reinforcing member 100 as described above. The details of the reinforcement by the reinforcing member 100 will be described below. As shown in Figure 1, if a force (horizontal force or vertical force) is generated due to the shaking of the ceiling material, for example, due to an earthquake, the above force is transmitted to the slab 2 side via the brace 40. At this time, an additional bending moment (filled-in arrow) due to the horizontal force (thick (dashed) arrow) at the upper end of the brace 40 acts on the upper part of the suspension member 10 (the upper end of the insert 11 and the suspension bolt 12). In the example shown, an example is shown in which a counterclockwise additional bending moment acts in a front view.

[0063] According to the ceiling structure 1 of this embodiment, the suspension member 10 can be reinforced against the additional bending moment by providing the reinforcing member 100. Specifically, in the reinforcing member 100 of this embodiment, the plate 110 extends horizontally (radially) from the mounting portion 120. The portion of the plate 110 extending to the right of the reinforcing member 100 abuts against the lower surface of the slab 2, thereby transmitting the counterclockwise force acting on the upper part of the suspension member 10 to the slab 2 side. This suppresses the concentration of stress on the suspension member 10 and prevents deformation of the suspension member 10. Furthermore, in this embodiment, since the plate 110 is formed in a substantially circular shape when viewed from the bottom, the force from the brace 40 can be suitably transmitted to the slab 2 side regardless of the circumferential orientation of the plate 110.

[0064] Furthermore, as shown in Figure 1, a force acting on the left side of the reinforcing member 100 is such that it moves away from the slab 2 (downward). In this embodiment, the extending end of the plate 110 is fixed to the slab 2 using the anchor 140 and the fixing bolt 150, so that the movement of the reinforcing member 100 (plate 110) away from the slab 2 can be restricted. This allows the suspension member 10 to be reinforced more effectively.

[0065] As described above, by reinforcing the suspension member 10 with the reinforcing member 100 and improving the load-bearing capacity of the suspension member 10, the load-bearing capacity borne by a single brace 40 can be increased. This makes it possible to reduce the number of braces 40.

[0066] As described above, the reinforcing member 100 according to this embodiment is A reinforcing member 100 that is suspended from slab 2 and reinforces suspension member 10 that supports ceiling material, A mounting portion 120 is attached to the suspension member 10 and receives force from the brace 40 which extends diagonally upward from the ceiling material, A plate 110 (contact portion) is fixed to the mounting portion 120 and is formed to extend horizontally, at least in the direction in which the brace 40 extends (left-right direction), and contacts the lower surface of the slab 2 when the mounting portion 120 is attached to the suspension member 10, It is equipped with the following features.

[0067] This configuration allows for effective reinforcement of the suspension member 10. Specifically, with the reinforcing member 100, the plate 110 formed as described above comes into contact with the lower surface of the slab 2, thereby transmitting the force acting on the suspension member 10 from the brace 40 to the slab 2. This suppresses stress concentration on the suspension member 10 and prevents deformation of the suspension member 10.

[0068] Furthermore, the reinforcing member 100 is The system is equipped with anchors 140 and fixing bolts 150 (fixing parts) for fixing the plate 110 to the slab 2.

[0069] This configuration allows for more effective reinforcement of the suspension member 10 by restricting the movement (vertical movement) of the reinforcing member 100 (plate 110) relative to the slab 2.

[0070] Furthermore, the plate 110 has a second insertion hole 112 (hole) that penetrates in the vertical direction. The aforementioned fixing part is An anchor 140 (engaged portion) is formed to pass through the second insertion hole 112 and is embedded in the slab 2 so as to overlap with the second insertion hole 112 when viewed from the bottom, A fixing bolt 150 (engaging portion) is formed to be engageable with the anchor 140 and to abut against the lower surface of the plate 110 when engaged with the anchor 140, It is equipped with the following features.

[0071] With this configuration, the anchors 140 and fixing bolts 150 (fixing parts) can be installed after the slab 2 has been constructed. That is, after the slab 2 has been constructed, the anchors 140 can be embedded in the slab 2 through the second insertion holes 112, and then the fixing bolts 150 can be engaged with the anchors 140 to fix the plate 110 to the slab 2.

[0072] Furthermore, the reinforcing member 100 is The mounting portion 120 is positioned below the lower surface of the plate 110 with a gap S between them, and is provided with a rib 130 (connecting portion) that connects the plate 110 and the mounting portion 120.

[0073] With this configuration, even if the part of the suspension member 10 on the suspension side (insert 11) protrudes downward, interference between this part and the mounting part 120 can be suppressed.

[0074] Furthermore, the rib 130 is Multiple units are provided so as to extend radially along the horizontal direction from the portion connected to the mounting portion 120.

[0075] With this configuration, the rib 130 can improve the strength of the reinforcing member 100.

[0076] Furthermore, the rib 130 is It is formed in a plate shape that extends downward from the lower surface of the plate 110.

[0077] This configuration helps to suppress the inhibition of the formation of the insulation layer, thereby ensuring thermal insulation.

[0078] Furthermore, the plate 110 is It is formed in a circular shape when viewed from below.

[0079] With this configuration, the force from the brace 40 can be suitably transmitted to the slab 2 side regardless of the circumferential orientation of the plate 110.

[0080] Furthermore, the ceiling structure 1 according to this embodiment is The reinforcing member 100 according to this embodiment, The aforementioned suspension member 10, The brace 40 is installed between the slab 2 and the ceiling material and is connected to the suspension member 10 below the reinforcing member 100, It is equipped with the following features.

[0081] This configuration allows for effective reinforcement of the suspension member 10.

[0082] The plate 110 is one form of implementation of the contact portion. Furthermore, the anchor 140 and the fixing bolt 150 represent one form of the fixing part. Furthermore, the rib 130 is one form of implementation of the connection part. Furthermore, the anchor 140 is one embodiment of the engaged portion. Furthermore, the fixing bolt 150 is one embodiment of the engagement part.

[0083] Although various embodiments have been described above, the present invention is not limited to the above configurations, and various modifications are possible within the scope of the invention as described in the claims. For example, the shape, size, number, etc., of each component constituting the ceiling structure 1 described above are examples only and are not limited to the above examples.

[0084] For example, the number of ribs 130, anchors 140, and fixing bolts 150 of the reinforcing member 100 is not limited to the example described above and can be changed as appropriate. Also, the vertical dimensions of the mounting portion 120 of the reinforcing member 100 can be set as appropriate according to the position of the upper end of the brace 40 (thickness of the insulation layer), etc.

[0085] Furthermore, although this embodiment shows an example in which the plate 110 of the reinforcing member 100 is formed in a substantially circular shape when viewed from the bottom, it is not limited to the above example. The shape of the plate 110 can be any shape that extends in the horizontal direction, at least in the direction in which the brace 40 extends (the left-right direction in this embodiment), and various shapes can be adopted, such as a shape that extends in only one direction (left-right direction) or a shape that extends in a substantially cross shape when viewed from the bottom.

[0086] In this embodiment, an example of fixing the plate 110 to the slab 2 using anchors 140 and fixing bolts 150 is shown, but the invention is not limited to the above example, and various means can be used to fix the plate 110 to the slab 2. Furthermore, fixing parts such as anchors 140 and fixing bolts 150 may be omitted. [Explanation of symbols]

[0087] 1. Ceiling structure 10 Suspension members 20 Fixing brackets 30 nuts 40 Brace 100 Reinforcement member

Claims

1. A reinforcing member that is suspended from a slab and reinforces a suspension member that supports ceiling material, A mounting portion attached to the suspension member and receiving force from a brace extending diagonally upward from the ceiling material, A contact portion is fixed to the mounting portion and is formed to extend horizontally, at least in the direction in which the brace extends, and contacts the lower surface of the slab when the mounting portion is attached to the suspension member, A reinforcing member having the following features.

2. The device comprises a fixing portion for fixing the contact portion to the slab. The reinforcing member according to claim 1.

3. The contact portion has a hole that penetrates in the vertical direction. The aforementioned fixing part is A engaged portion is formed to be passable through the aforementioned hole and is embedded in the slab so as to overlap with the aforementioned hole when viewed from the bottom, An engaging portion is formed to be engageable with the engaged portion, and in a state of engagement with the engaged portion, it contacts the lower surface of the contact portion, Equipped with, The reinforcing member according to claim 2.

4. The mounting portion is provided with a connecting portion that connects the abutment portion and the mounting portion, such that the mounting portion is located below the lower surface of the abutment portion with a gap between them. The reinforcing member according to claim 1.

5. The aforementioned connection part is Multiple portions are provided so as to extend radially along the horizontal direction from the portion connected to the aforementioned mounting part. The reinforcing member according to claim 4.

6. The aforementioned connection part is It is formed in a plate shape that extends downward from the lower surface of the contact portion, The reinforcing member according to claim 4.

7. The aforementioned contact portion is, When viewed from below, it is formed in a circular shape. The reinforcing member according to claim 1.

8. A reinforcing member according to any one of claims 1 to 7, The aforementioned suspension member and, The brace is installed between the slab and the ceiling material and is connected to the suspension member below the reinforcing member, A ceiling structure that includes the following features.

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