JP6289035B2 - Building ceiling structure - Google Patents

Description

  The present invention relates to a structure of a building ceiling.

  On the ceilings of commercial malls such as shopping malls, supermarkets, department stores and department stores, entertainment facilities, factories, etc., shutters fixed on the top of the building, such as the top of the building, smoke-proof banners, smoke-proof walls, air conditioners, etc. In many cases, ceiling equipment such as air conditioners, lighting devices, monitor displays, and ceiling inspection openings are provided. As the ceiling on which these ceiling equipments are provided, a lightweight ceiling having a structure in which a ceiling material is supported by a suspension bolt or the like on the top of the casing, so-called a suspended ceiling is generally used.

Japanese Patent Laid-Open No. 2003-262081

However, when an earthquake or the like occurs, the suspended ceiling is supported in a suspended state by suspension bolts, and therefore, the suspended ceiling may swing with the earthquake and may collide with various ceiling facilities fixed on the building side. When the ceiling equipment is a fireproof sheet shutter (shutter device) disclosed in, for example, Patent Literature 1, the lintel extending in the width direction of the entrance / exit of the shutter curtain is deformed by the collision of the ceiling material. . If the lintel, which is the edge of the shutter curtain entrance / exit, is deformed, the slit-shaped entrance / exit narrows, and the shutter curtain cannot be lowered. Some shutter devices have to be automatically lowered to form a fire prevention zone in response to a fire after an earthquake. In this case, if the lowering is prevented by the above deformation, the configuration of the fire prevention compartment may be difficult. Further, if the lintel deformation as described above occurs while the shutter curtain is closed, it is difficult to raise the shutter curtain and the building opening may not be opened. On the other hand, if a clearance is provided between the edge portion of the ceiling material and the shutter device, it is possible to prevent a load during the ceiling movement from being applied to the lintel, but there is a problem that the design as the ceiling is impaired.
In addition, the ceiling material may collide with and damage the ceiling equipment due to the shaking of the ceiling, and the ceiling material may fall. In addition, if the damaged ceiling material falls and is scattered on the floor surface, it may hinder evacuation or hinder the restart of facilities such as stores.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a structure of a building ceiling that can absorb the shaking of the ceiling, prevent damage to ceiling equipment, and prevent damage / falling of the ceiling material. There is to do.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
Structure of buildings ceiling of the present invention includes a ceiling facilities product 15,61 which is secured to skeleton top 13,
A ceiling member that is supported on the top surface 13 of the housing 13 by suspension bolts 31 and that forms a ceiling 33, and an edge portion 37 is arranged with a ceiling swing displacement absorbing gap 39 at a predetermined interval with respect to the ceiling equipment 15, 61. 11 and
A displacement absorbing gap that is provided between the ceiling fixtures 15 and 61 and the end edge portion 37 in parallel with the ceiling 33 and covers the ceiling shaking displacement absorbing gap 39 while allowing the ceiling shaking displacement absorbing gap 39 to expand and contract. Blocking members 41, 69, 73;
It is characterized by comprising.

In this building ceiling structure, a ceiling sway displacement absorbing gap 39 is formed between the ceiling facilities 15 and 61 fixed to the ceiling 13 and the edge 37 of the ceiling material 11. When the entire ceiling made of the ceiling material 11 is shaken with the suspension bolt 31 as a fulcrum due to the earthquake, the end edge portion 37 of the ceiling material 11 approaches the ceiling equipment 15, 61 between the ceiling shaking displacement absorbing gaps 39.・ Move away. That is, the displacement of the edge portion 37 is absorbed by the ceiling shaking displacement absorbing gap 39, and the collision of the edge portion 37 with the ceiling equipments 15 and 61 can be avoided.
The ceiling shaking displacement absorbing gap 39 is covered with displacement absorbing gap closing members 41, 69 and 73. The displacement absorbing gap closing members 41, 69, and 73 allow the ceiling shaking displacement absorbing gap 39 to be expanded and contracted due to the shaking of the ceiling 33. Thereby, the appearance by the ceiling shaking displacement absorption gap 39 being in an open state is unlikely to deteriorate.

Building ceiling structure of the present invention is a structure of the ceiling above the building,
The displacement absorbing gap closing member is made of a sheet material 41,
In the sheet material 41, the ceiling equipment side edge 43 is fixed to the ceiling equipment 15, 61, and the ceiling material side edge 45 is in contact with the edge 37, and the ceiling equipment 15, 61 It is stretched between the ceiling 33.

  In this building ceiling structure, the sheet material 41 covers the ceiling shaking displacement absorbing gap 39. As the sheet material 41, for example, a resin sheet or the like is suitable. The sheet material 41 has greater flexibility and lower specific gravity than a rigid metal plate or the like. Since the sheet material 41 is stretched between the ceiling equipments 15 and 61 and the end edge portion 37, the sheet material 41 is normally flat and hardly deteriorates in appearance. When an earthquake occurs, deformation is possible following the expansion and contraction of the ceiling shaking displacement absorbing gap 39. After following the expansion / contraction of the ceiling sway displacement absorbing gap 39, it returns to the flat shape again, and can be reused.

Structure building ceiling according to claim 1 of the present invention is a structure of the ceiling above the building,
The sheet material 41 is made of a transparent material or a translucent material,
An illumination device 59 for illuminating the sheet material 41 is attached to the ceiling equipments 15 and 61.

  In this building ceiling structure, when the lighting device 59 attached to the ceiling equipment 15, 61 is turned on and the sheet material 41 is illuminated from the back side, which is the upper surface, the illumination light passes through the sheet material 41 and the sheet material 41. The lower surface of the sheet, that is, the lower surface of the sheet material that is substantially flush with the ceiling surface can be brightened. This makes it possible to display, for example, an evacuation direction sign.

The structure of the building ceiling according to claim 2 of the present invention is the structure of the building ceiling described above ,
The displacement absorbing gap closing member comprises a gap closing ceiling material 69 made of the same material as the ceiling material 11;
The ceiling member 69 for closing the gap is supported by the ceiling top surface 13 by a suspension bolt 31 so that the ceiling equipment side edge 43 is brought into contact with the ceiling equipment objects 15 and 61 and the ceiling material side edge 45 is provided. It is slidably stacked on the end edge portion 37.

  In this building ceiling structure, the ceiling sway displacement absorbing gap 39 is closed by a gap closing ceiling material 69 made of the same material as the ceiling material 11. The gap closing ceiling material 69 is supported on the housing top surface 13 by the suspension bolts 31. The ceiling material 69 for closing the gap is suspended in a state in which the ceiling equipment side edge 43 is in contact with the ceiling equipment 15 and 61. On the other hand, the ceiling material side edge 45 of the gap closing ceiling material 69 is slidably overlapped with the edge 37 of the ceiling material 11. Thereby, when the ceiling material 11 is shaken, the edge portion 37 slides in parallel with the gap closing ceiling material 69, and the gap closing ceiling material 69 and the ceiling material 11 are not easily damaged.

The structure of the building ceiling according to claim 3 of the present invention is the structure of the building ceiling described above ,
The displacement absorbing gap closing member is a lintel 75 attached to the ceiling equipment 15, 61.
The lintel 75 has a lintel extension plate portion 73 that extends in parallel with the ceiling 33 and is slidably overlapped with the end edge portion 37.

  In this building ceiling structure, a part of the lintel 75 attached to the ceiling equipment extends in parallel with the ceiling 33 to form the lintel extension plate portion 73. The extension end of the lintel extension plate portion 73 is slidably overlapped with the end edge portion 37 of the ceiling material 11. Thereby, when the ceiling material 11 shakes, the edge part 37 slides in parallel with the lintel extension board part 73, and it becomes difficult to damage the lintel 75 and the ceiling material 11.

According to engagement Ru building ceiling structure of the present invention, by absorbing ceiling shaking, it is possible to prevent damage to the ceiling equipment was also possible to prevent damage or dropping the ceiling material.

According to engagement Ru building ceiling structure in the present invention can reduce the weight of the member closing displacement absorbing gaps.

According to claim 1, wherein the building ceiling structure according to the present invention enables effective utilization of the ceiling swing displacement absorbing gaps, it can be secured lights such as the ceiling for instance emergency lights.

According to the structure of the building ceiling according to claim 2 of the present invention, the displacement absorbing gap closing member becomes a ceiling material for gap closing using the same material as the ceiling material, which makes it difficult to produce a sense of incongruity and enhances the appearance of the ceiling. Can be better.

According to the structure of the building ceiling according to the third aspect of the present invention, the displacement absorbing gap closing member can be installed by changing the shape of the lintel, and the member cost and the construction cost can be reduced.

It is sectional drawing showing the structure of the building ceiling which concerns on embodiment of this invention. It is a principal part enlarged view of FIG. It is operation | movement explanatory drawing of the structure of the building ceiling shown in FIG. It is sectional drawing showing the structure of the building ceiling which concerns on the modification provided with the illuminating device. It is sectional drawing showing the structure of the building ceiling which concerns on the modification in which a ceiling is provided on both sides on both sides of a ceiling installation thing. It is sectional drawing showing the structure of the building ceiling which concerns on the modification in case a ceiling installation thing is a ceiling embedded type | formula air conditioner. It is sectional drawing showing the structure of the building ceiling based on the modification whose displacement absorption gap closing member is a ceiling material for gap closing. It is sectional drawing showing the structure of the building ceiling which concerns on the modification whose displacement absorption gap closing member is a lintel extension board part.

Embodiments according to the present invention will be described below with reference to the drawings.
FIG. 1 is a cross-sectional view showing the structure of a building ceiling according to an embodiment of the present invention, and FIG. 2 is an enlarged view of a main part of FIG.
The structure of the building ceiling according to the present embodiment includes a ceiling facility, a ceiling material 11, and a displacement absorbing gap closing member.

[Ceiling equipment]
The ceiling equipment is fixed to the cabinet top surface 13. In the present embodiment, the ceiling equipment is the shutter device 15. In the shutter device 15, a winding shaft 17 that extends in the left-right direction, which is the width direction of the shutter curtain 21 as an opening / closing body, is mounted above the opening inside the building serving as a fire prevention section. In the shutter device 15, the winding shaft 17 is driven forward / reversely by the operation of the opening / closing machine 19, and the shutter curtain 21 is moved up and down while being guided by the guide rails 23 erected on the left and right sides of the opening, and the opening is opened. It opens and closes. In this embodiment, a shutter mounting base is fixed to a wall portion 25 such as a descending wall continuous to the housing top surface 13, and a pair of brackets 27 are attached to the left and right sides of the shutter mounting base. The take-up shaft 17 is pivoted between the brackets 27. The take-up shaft 17 that winds up the shutter curtain 21 is covered with a storage case 29. In the present specification, the thickness direction of the shutter curtain 21 that is the opening and closing body of the shutter device 15 means the thickness direction of the shutter curtain 21 in the fully closed state, and the width direction of the shutter curtain 21 is The direction that is substantially orthogonal to the opening / closing direction of the shutter curtain 21 and that is not the thickness direction of the shutter curtain 21 is meant. For the sake of convenience, the shutter curtain width direction may be expressed as the left-right direction, and the shutter curtain thickness direction may be expressed as the front-rear direction. Further, for convenience of explanation, in this specification, in the front-rear direction, the side of the wall portion 25 with respect to the winding shaft 17 shown in FIG. 1 is expressed as a front side or a front direction, and a side opposite to the front side is expressed as a rear side or a rear direction. I will do it. Of course, the front side and the rear side are relative, and the side of the wall portion 25 with respect to the winding shaft 17 shown in FIG. 1 may be expressed as the rear side.

  In addition to the shutter device 15, the ceiling equipment may be a building structure, a smoke-proof hanging wall, an air conditioner, a lighting device, a monitor display, a ceiling inspection port, and the like.

[Ceiling material]
A plurality of ceiling materials 11 are supported on the ceiling top surface 13 by suspension bolts 31 to constitute a ceiling 33. The ceiling material 11 is attached to a lightweight ceiling base, for example. The lightweight ceiling base is provided with an adjustment hanger (not shown) at the lower end of the suspension bolt 31, and the adjustment hanger supports a plurality of parallel edge receiving channels 35. On the lower surface of each field receiving channel 35, a plurality of parallel field channels (not shown) are supported in the orthogonal direction by clips. A ceiling material 11 is pasted on the lower surface of the field channel. As the ceiling material 11, a decorative plywood, a fiber board, a rock wool board, a gypsum board, a metal plate such as aluminum or stainless steel can be used. Note that the suspension bolt 31 is an expression for the sake of convenience for easy understanding of the description, and is not limited to the suspension bolt, and can withstand and support the ceiling material 11 such as a metal rod-like member. This means a long member having a certain strength.

  In the structure of the building ceiling, the front edge portion 37 in the thickness direction of the shutter curtain 21 of the ceiling material 11 with respect to the shutter device 15 is spaced in the front-rear direction by a ceiling swing displacement absorbing gap 39 having a predetermined interval in the left-right direction. It is extended and arranged. The ceiling sway displacement absorbing gap 39 is set to about 100 mm, for example, which is set as a “desirable value” in the Building Standards Act, technical guidelines, the Architectural Institute of Japan, and the like. However, this value is preferably increased or decreased as appropriate according to the strength of the ceiling equipment, the swing width of the ceiling 33, the impact force of the ceiling material 11, and the like.

[Displacement absorbing gap closing member]
The displacement absorbing gap closing member extends in the left-right direction and the front-rear direction and is provided in parallel with the ceiling 33 between the shutter device 15 that is a ceiling facility and the end edge portion 37 of the ceiling material 11. The displacement absorbing gap closing member covers the ceiling shaking displacement absorbing gap 39 while allowing the ceiling shaking displacement absorbing gap 39 to expand and contract.

  In the present embodiment, the displacement absorbing gap closing member is made of the sheet material 41. The sheet material 41 may be a cloth screen, a soft resin sheet such as vinyl chloride or urethane, and rubber or a rubber-like substance. In addition, when used for securing a fireproof or smokeproof section, for example, a flame-retardant resin sheet, silica cloth or glass cloth, or a fireproof paint or a waterproof coating material as a fireproof coating material is sprayed or applied to them. Those impregnated or impregnated can be suitably used. Further, the sheet material 41 may be combined with a reinforcing metal such as a wire mesh or a resin wire.

  In the sheet material 41, the ceiling equipment side edge 43 is fixed to the shutter device 15, and the ceiling material side edge 45 is in contact with the edge 37 of the ceiling material 11 and between the ceiling equipment and the ceiling 33. It is stretched. More specifically, the ceiling equipment object side edge 43 is fixed to a lintel 47 attached to the shutter device 15. The lintel 47 has a lintel receiving channel 49 and an opening lintel plate 51 fixed to the lintel receiving channel 49, and extends between the pair of guide rails 23. In addition, a wall-side opening lintel plate 53 is attached to the opposite side in the front-rear direction of the opening lintel plate 51 across the guide rail 23, that is, the front side, that is, the opening lintel plate 51 and the wall-side opening lintel. The lintel board 53 constitutes an entrance / exit of the shutter curtain 21.

  The ceiling equipment object side edge 43 of the sheet material 41 described above is fixed by a seat clip 55 to the L-shaped tip of the opening lintel plate 51. In the lintel receiving channel 49, a sheet support plate 57 is suspended from the rear side opposite to the opening lintel plate 51. The ceiling material side edge 45 of the sheet material 41 described above is fixed to one end of the sheet support plate 57 that has an inverted T shape by a sheet clip 55. The edge 37 of the ceiling material 11 is overlaid on the other end of the sheet support plate 57 that has an inverted T shape. That is, the sheet material 41 is stretched between the opening lintel plate 51 and the sheet support plate 57 so as to extend in the front-rear direction and the left-right direction. As a result, the sheet material 41 is provided between the shutter device 15 and the end edge portion 37 in parallel with the ceiling 33, allows the ceiling shaking displacement absorbing gap 39 to be expanded and contracted, and covers the ceiling shaking displacement absorbing gap 39. Yes.

  The other end of the sheet support plate 57 that has an inverted T-shape is superimposed on the end edge portion 37 of the ceiling material 11, but does not support the weight of the ceiling material 11. They simply overlap and overlap. In other words, it takes a lot of money. Thereby, the sheet | seat support plate 57 and the edge part 37 are the states which move mutually.

  In addition to the sheet material 41, the displacement absorbing gap closing member may be a flexible plate material such as a steel plate having a small thickness. In the steel sheet, the ceiling equipment side edge 43 is fixed to the ceiling equipment, and the ceiling material side edge 45 is fixed to the end edge 37 of the ceiling material 11. In the case of such a steel plate, reuse is impossible, but by absorbing and deforming the load caused by the shaking of the ceiling material 11, the collision energy is mitigated, and the shutter device 15 and the ceiling material 11 are prevented from being damaged. can do.

  Further, since the above-described shaking shaking absorption gap 39 and the displacement absorption gap closing member in the shutter device 15 are generally considered to shake more in the front-rear direction than in the left-right direction, the width in the left-right direction is the front-rear direction. It is preferable that it is larger than the width length in. However, the width is not limited to this, and the width may be determined in consideration of the shutter device 15 and the shaking characteristics at the site. Further, the width in the left-right direction is preferably the same (including substantially) length as the length in the left-right direction of the shutter curtain 21 that is an opening / closing body and the length between the left and right guide rails 23. It is arbitrary as long as it is determined in consideration of the swing characteristics at.

Next, the operation of the structure of the building ceiling having the above configuration will be described.
FIG. 3 is an operation explanatory diagram of the structure of the building ceiling shown in FIG.
In the structure of the ceiling of the building, the shutter device 15 fixed to the top surface 13 of the housing, more specifically, an opening lintel plate 51 which is one of the members constituting the shutter device 15, and the edge of the ceiling material 11 A ceiling shaking displacement absorbing gap 39 is formed between the sheet support plate 57 on which the portion 37 is stacked. When the entire ceiling made of the ceiling material 11 is shaken with the suspension bolt 31 as a fulcrum due to the earthquake, the edge portion 37 of the ceiling material 11 approaches and separates from the shutter device 15 between the ceiling shaking displacement absorbing gaps 39. Move in the direction. That is, when the displacement of the edge portion 37 is in the direction approaching the shutter device 15, the collision of the edge portion 37 against the shutter device 15 can be avoided by being absorbed by the ceiling shaking displacement absorbing gap 39.

  The ceiling shaking displacement absorbing gap 39 is covered with a sheet material 41. The sheet material 41 allows the expansion and contraction of the ceiling sway displacement absorbing gap 39 accompanying the sway of the ceiling 33. Thereby, the appearance by the ceiling shaking displacement absorption gap 39 being in an open state is unlikely to deteriorate.

Further, in this building ceiling structure, the sheet material 41 is more flexible and less specific gravity than a rigid metal plate or the like. Since the sheet material 41 is stretched between the shutter device 15 and the end edge portion 37, the sheet material 41 is normally planar and hardly deteriorates in appearance. The sheet material 41 can be easily deformed following the movement of the ceiling material 11 when an earthquake occurs. That is, as shown in FIG. 3, the edge portion 37 presses the sheet support plate 57 by the movement of the ceiling material 11, but the sheet support plate 57 is deformed in accordance with the pressing and bends the sheet material 41. . In the sheet material 41, the ceiling material side edge 45 approaches the ceiling equipment object side edge 43, that is, the interval of the ceiling shaking displacement absorbing gap 39 is reduced, but the collision to the shutter device 15 side due to the shaking of the ceiling material 11. Will be avoided. After following the expansion / contraction of the ceiling sway displacement absorbing gap 39, it returns to the flat shape again, and can be reused.
For this reason, even if the ceiling 33 may swing after the earthquake, the collision with the shutter device 15 is avoided, the deformation of the lintel 47 and the damage to the shutter device 15 are prevented, and the ceiling material 11 is damaged. Can also be suppressed. And since the displacement absorbing gap closing member is the sheet material 41, it is possible to reduce the weight and the cost.

[Modification]
Below, the various modifications of the structure of the building ceiling which concerns on the said embodiment are demonstrated using FIGS. In the following modifications, the same members as those shown in FIGS. 1 to 3 are denoted by the same reference numerals, and redundant description will be omitted.
FIG. 4 is a cross-sectional view illustrating a structure of a building ceiling according to a modification in which the lighting device 59 is provided.
In the structure of the building ceiling according to this modification, the sheet material 41 is made of a transparent material or a translucent material, and the shutter device 15 is provided with an illumination device 59 that illuminates the sheet material 41.

In this building ceiling structure, when the lighting device 59 attached to the shutter device 15 is turned on and the sheet material 41 is illuminated from the back side, the illumination light is transmitted through the sheet material 41 and the lower surface of the sheet material 41, that is, the ceiling surface. It is possible to brighten the lower surface of the sheet material which is substantially the same surface. Thereby, for example, it can be configured as a part of indoor lighting, or an emergency evacuation direction sign or the like can be displayed.
As a result, the ceiling shaking displacement absorbing gap 39 can be effectively used, and a light such as an emergency light can be secured on the ceiling 33.

FIG. 5 is a cross-sectional view illustrating a structure of a building ceiling according to a modification in which ceilings 33 are provided on both sides with a ceiling facility interposed therebetween.
The structure of the building ceiling according to this modification is provided with ceilings 33 on the left and right of FIG. 5 with the guide rail 23 of the shutter device 15 interposed therebetween, in other words, on both sides in the front-rear direction. That is, this is the case of the shutter device 15 that partitions an indoor space with a shutter curtain.
On the respective ceiling sides of the shutter device 15, a lintel 47 and a sheet support plate 57, and a wall side opening lintel plate 53 and a sheet support plate 57 are provided. A sheet material 41 is stretched between the lintel 47 and the sheet support plate 57, and between the wall-side opening lintel plate 53 and the sheet support plate 57.
In this building ceiling structure, even when both the ceilings 33 of the shutter device 15 are shaken by an earthquake, the displacement of each ceiling 33 is absorbed by the ceiling shaking displacement absorbing gaps 39 on both sides, and the respective edges Collision of the unit 37 against the shutter device 15 is avoided.

FIG. 6 is a cross-sectional view showing the structure of a building ceiling according to a modification in the case where the ceiling equipment is a ceiling-embedded air conditioner 61.
In the building ceiling structure according to this modification, the ceiling equipment is the ceiling-embedded air conditioner 61. When a square arrangement surface is exposed around the ceiling-embedded air conditioner 61, for example, on the ceiling surface, ceiling shaking displacement absorbing gaps 39 are formed on the four sides. In this structure, the opening lintel plate 63 and the sheet support plate 65 are fixed to the air conditioner main body 67. A sheet material 41 similar to the above is stretched between the opening lintel plate 63 and the sheet support plate 65. In addition, the lintel receiving channel 49 similar to the above may be provided around the air conditioner main body 67 so that the seat support plate 65 may be disposed through the lintel receiving channel 49.
In the structure of the ceiling of the building, a ceiling shaking displacement absorbing gap 39 is secured around the ceiling-embedded air conditioner 61, and even if the ceiling 33 is shaken, the edge portion 37 of the ceiling material 11 is embedded in the ceiling-embedded air conditioner 61. It becomes difficult to collide with. Thereby, the damage of the ceiling embedded type air conditioner 61 by the ceiling material 11, the damage of the ceiling material 11, or the fall can be avoided.

FIG. 7 is a cross-sectional view showing the structure of a building ceiling according to a modification in which the displacement absorbing gap closing member is a gap closing ceiling member 69.
In the structure of the building ceiling according to this modification, the displacement absorbing gap closing member is composed of the gap closing ceiling material 69 made of the same material as the ceiling material 11. The ceiling material 69 for closing the gap is supported by the ceiling top surface 13 or the ceiling equipment fixed to the top surface 13 by the suspension bolts 31, and the ceiling equipment side edge 43 is brought into contact with the shutter device 15. In addition, the ceiling material side edge portion 45 is slidably overlapped with the end edge portion 37.

In this building ceiling structure, the ceiling sway displacement absorbing gap 39 is closed by a gap closing ceiling material 69 made of the same material as the ceiling material 11. The ceiling material 69 for closing the gap is supported by the housing top surface 13 and the ceiling equipment by the suspension bolts 31. The ceiling material 69 for closing the gap is suspended in a state in which the ceiling equipment side edge 43 is in contact with the ceiling equipment. On the other hand, the ceiling material side edge 45 of the gap closing ceiling material 69 is slidably overlapped with the edge 37 of the ceiling material 11. It is preferable to fix a sliding plate 71 or the like for enabling smooth sliding with the ceiling member 69 for closing the gap to the edge portion 37 of the ceiling member 11.
As a result, when the ceiling material 11 is shaken, the end edge portion 37 slides substantially parallel to the gap closing ceiling material 69, and the gap closing ceiling material 69 and the ceiling material 11 are not easily damaged.
As a result, in addition to avoiding damage to the shutter device 15 and damage / dropping of the ceiling material 11, the displacement absorbing gap closing member becomes a gap closing ceiling material 69 using the same material as the ceiling material 11, and is unlikely to cause discomfort. Thus, the appearance of the ceiling 33 can be improved.

FIG. 8 is a cross-sectional view showing a structure of a building ceiling according to a modification in which the displacement absorbing gap closing member is a lintel extension plate portion 73.
The structure of the building ceiling according to this modification is a lintel 75 in which a displacement absorbing gap closing member is attached to the ceiling equipment. The lintel 75 has a lintel extension plate portion 73 that extends parallel to the ceiling 33 and is slidably overlapped with the end edge portion 37. The lintel extension plate portion 73 covers the ceiling shaking displacement absorbing gap 39.

In this building ceiling structure, a part of the lintel 75 attached to the ceiling equipment extends in parallel with the ceiling 33 to form the lintel extension plate portion 73. The extension end of the lintel extension plate portion 73 is slidably overlapped with the end edge portion 37 of the ceiling material 11. Thereby, when the ceiling material 11 shakes, the edge part 37 slides substantially parallel to the lintel extension plate part 73, and the lintel 75 and the ceiling material 11 are not easily damaged.
As a result, the displacement absorbing gap closing member can be installed by changing the shape of the lintel 75, and the member cost and construction cost can be reduced.

  Therefore, according to the structure of the building ceiling according to the present embodiment and the modification thereof, it is possible to absorb the shaking of the ceiling 33 and prevent damage to ceiling equipment such as the shutter device 15 and damage / falling of the ceiling material 11. it can.

DESCRIPTION OF SYMBOLS 11 ... Ceiling material 13 ... Body top surface 15 ... Ceiling equipment (shutter device)
31 ... Suspension bolt 33 ... Ceiling 37 ... End edge 39 ... Ceiling shaking displacement absorption gap 41 ... Displacement absorption gap closing member (sheet material)
43 ... Ceiling equipment side edge 45 ... Ceiling material side edge 47 ... Pillar 59 ... Lighting device 61 ... Ceiling equipment (ceiling embedded air conditioner)
69 ... Displacement absorbing gap closing member (ceiling material for gap closing)
73 ... Displacement absorbing gap closing member (liners extending plate part)

Claims (3)

Ceiling equipment fixed to the top of the enclosure,
A ceiling material that is supported by suspension bolts on the top surface of the casing to form a ceiling, and an edge portion of the ceiling equipment is disposed with a ceiling shaking displacement absorbing gap having a predetermined interval therebetween,
A displacement absorbing gap closing member provided parallel to the ceiling between the ceiling equipment and the edge portion, and allowing the ceiling shaking displacement absorbing gap to be expanded and contracted to cover the ceiling shaking displacement absorbing gap. ,
The displacement absorbing gap closing member is made of a sheet material,
The sheet material has a ceiling facility object side edge fixed to the ceiling facility object, and a ceiling material side edge is stretched between the ceiling facility object and the ceiling material in contact with the end edge part. The ceiling structure of the building
The sheet material is made of a transparent material or a translucent material,
A structure of a building ceiling, wherein a lighting device for illuminating the sheet material is attached to the ceiling equipment. Ceiling equipment fixed to the top of the enclosure,
A ceiling material that is supported by suspension bolts on the top surface of the casing to form a ceiling, and an edge portion of the ceiling equipment is disposed with a ceiling shaking displacement absorbing gap having a predetermined interval therebetween,
A displacement absorbing gap closing member provided in parallel with the ceiling between the ceiling equipment and the edge, and allowing the ceiling shaking displacement absorbing gap to expand and contract and covers the ceiling shaking displacement absorbing gap. The structure of the ceiling of the building,
The displacement absorbing gap closing member comprises a ceiling material for gap closing made of the same material as the ceiling material,
The ceiling material for closing the gap is supported by a ceiling bolt on the top surface of the housing, the side edge of the ceiling equipment is brought into contact with the ceiling equipment, and the side edge of the ceiling material is slidable on the end edge. The structure of the ceiling of the building, which is characterized by being overlaid. Ceiling equipment fixed to the top of the enclosure,
A ceiling material that is supported by suspension bolts on the top surface of the casing to form a ceiling, and an edge portion of the ceiling equipment is disposed with a ceiling shaking displacement absorbing gap having a predetermined interval therebetween,
A displacement absorbing gap closing member provided in parallel with the ceiling between the ceiling equipment and the edge, and allowing the ceiling shaking displacement absorbing gap to expand and contract and covers the ceiling shaking displacement absorbing gap. The structure of the ceiling of the building,
The displacement absorbing gap closing member is a lintel attached to the ceiling equipment,
The lintel has a lintel extension plate portion that extends parallel to the ceiling and is slidably stacked on the end edge portion.

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