JP5928711B2 - Ceiling structure - Google Patents

Description

  The present invention relates to a ceiling structure.

  As a conventional ceiling structure, one in which a ceiling base that supports a ceiling board is suspended by a suspension bolt is known (see, for example, Patent Document 1). The suspension bolt is suspended from a support structure such as an upper floor slab, and a plurality of ceiling foundation components constituting the ceiling foundation are connected to the lower end of the suspension bolt. The ceiling base component is assembled in a straight line shape or a lattice shape. When the lattice structure is assembled to the ceiling base component, a plurality of field edges are attached to the lower side of the plurality of field edge receivers arranged in parallel. This field edge extends in a direction perpendicular to the field edge receiver.

JP 2010-255308 A

  In the conventional ceiling structure, when the ceiling shakes due to an earthquake or the like, there is a possibility that the ceiling base or the ceiling plate collides with the surrounding wall and is damaged. Therefore, it is said that in order to improve the earthquake resistance performance of the ceiling, it is important to increase the strength of members such as clips, suppress the shaking with braces, etc., and provide a clearance between the wall and the ceiling. Among these clearances, the way the individual ceilings sway differs depending on the conditions such as the length of suspension and braces. Therefore, in the case of large ceilings, it is necessary to individually examine the required clearance. In the case of a small ceiling, it is often not considered. Moreover, even if the size of the clearance is examined, it is actually about 2 to 3 cm, and it is often insufficient when the natural period of the building such as a large earthquake or a long-period ground motion is taken into consideration. On the other hand, as a concrete reinforcing method, in the case of a large-scale ceiling, a brace material is connected to a suspension bolt or a ceiling base to reduce shaking and suppress a collision with a wall, but it is not sufficient. In the case of a small-scale ceiling, there may be a case where a slanted reinforcing material or horizontal reinforcing material that is lighter than the brace is installed on the suspension bolt, but this is not sufficient. In particular, when there is a column type, there is a problem that when the ceiling main body is greatly shaken, it does not collide uniformly with the wall, and the column type and the ceiling main body collide locally, so that they easily break. If reinforcement with sufficient seismic performance is performed by braces or the like, there is a problem that the weight of the entire ceiling is increased and construction is difficult.

  In view of the above, it is an object of the present invention to provide a ceiling structure that can achieve suppression of breakage and is lightweight and easy to construct.

The invention according to claim 1 for solving the above-mentioned problem is that the ceiling structure has a ceiling body that is suspended and supported from an upper housing, and the peripheral portion of the ceiling body has a planar rectangular shape protruding from the wall and the wall. The column or the column type includes a front end surface parallel to the surface of the wall and a side surface orthogonal to the surface of the wall, and the peripheral portion and the surface of the wall during the first clearance is provided straight, between the peripheral portion and the pillar or the column type wherein the front end surface and the side surfaces of the planar U-shape wider than said first clearance The ceiling main body is disposed along the surface of the wall, the ceiling base supported by the suspension provided in the upper casing, the ceiling plate supported by the ceiling base A ceiling material, And a plurality of ceiling foundation components extending along a direction intersecting the surface of the wall, and the threading material connects ends of the plurality of ceiling foundation components together, and the ceiling foundation configuration It is a ceiling structure characterized by projecting to the wall side from the edge of the material and the peripheral edge of the ceiling board .

  Here, the second clearance means the gap between the surface of the pillar and the peripheral edge (end face) of the ceiling body when the pillar body, which is a structure, is exposed. Finishing panels around the pillar When a column is formed by providing a material, it means a gap between the surface of the column and the peripheral edge of the ceiling body.

According to the above configuration, even if the ceiling body is shaken and the peripheral edge thereof is in contact with the wall, the ceiling body is not locally contacted with the column or the column shape, so that the ceiling body can be prevented from being damaged around the column. In addition, even if the peripheral edge of the ceiling main body is in contact with the wall, it can be contacted over a wide area, so that the horizontal force can be dispersed. Therefore, the shaking of the ceiling main body can be tolerated to some extent, braces can be reduced or omitted, and a reduction in ceiling weight and labor can be achieved. Furthermore, the first clearance can be made constant by providing the threading material.

The invention according to claim 2 is a ceiling structure having a ceiling body supported by being suspended from an upper housing , wherein a first clearance is provided between a peripheral portion of the ceiling body and a surface of a surrounding wall, and A second clearance wider than the first clearance is provided between the peripheral edge portion and the surface of the column or column shape, and the ceiling body is supported by a suspension member provided on the upper housing. A plurality of ceiling foundations extending along a direction intersecting with the wall surface, comprising: a foundation; a ceiling plate supported by the ceiling foundation; and a threading member disposed along the wall surface. The through material has a plurality of the ceiling foundation constituent materials connected to each other, and projects from the end of the ceiling foundation constituent material and the peripheral edge of the ceiling plate to the wall side. , mosquitoes on the outside of the ceiling board A ten box is provided, and the ceiling main body further includes a projecting member projecting from the ceiling base component toward the wall, and the projecting member passes above the curtain box and is connected to the wall. A ceiling structure characterized in that the first clearance is provided therebetween . According to such a configuration, the horizontal force of the ceiling main body can be directly transmitted to the wall via the projecting member without acting on the curtain box.

  According to the ceiling structure according to the present invention, it is possible to suppress the damage of the peripheral edge portion, and it is possible to achieve the weight reduction of the entire ceiling and the reduction of construction labor.

It is the top view which showed the ceiling structure which concerns on embodiment of this invention. (A) is the perspective view which showed the ceiling main body, (b) is the expansion perspective view which showed the corner part of the ceiling main body. It is sectional drawing which showed the connection with the field edge of a ceiling main body, and a threading material. It is sectional drawing which showed the connection with the field edge receiver of a ceiling main body, and a threading material. It is sectional drawing which showed engagement with the field edge receiver of a ceiling main body, and an overhang | projection member. It is sectional drawing which showed engagement with the field edge of a ceiling main body, and an overhang | projection member.

  A ceiling structure according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a case where the ceiling base component is assembled in a lattice shape is illustrated. In the present embodiment, description will be made with reference to the orthogonal axes X, Y, and Z shown in FIG.

  The ceiling structure according to the present embodiment has a ceiling body that is suspended and supported from the upper housing. As shown in FIG. 2, the ceiling main body includes a plurality of suspension bolts 1 (suspending members), a ceiling base 10, a ceiling plate 20 (see FIGS. 3 to 6), and a threading member 30. ing. The suspension bolt 1 hangs down from the lower surface of an upper upper floor slab (not shown) or the like and extends in the Z direction (vertical direction). The suspension bolt 1 is composed of a long bolt material.

  The ceiling base 10 is supported by a plurality of suspension bolts 1. The ceiling foundation 10 includes a field edge receiver 11 as a first ceiling foundation component extending in the X-axis direction (horizontal direction) and a field edge 12 as a second ceiling foundation component extending in the Y-axis direction. And comprising. The field receiver 11 is made of a steel C-shaped channel material having a U-shaped cross section. The field edge receiver 11 is disposed so that the U-shaped opening portion is in a horizontal direction, and is locked to the suspension bolt 1 by a suspension fitting 2 provided at the lower end of the suspension bolt 1. The field edge 12 is formed of a C-shaped channel material with a steel lip having a C-shaped cross section. The field edge 12 is disposed so that the C-shaped opening portion faces upward, and is locked to the field edge receiver 11 by the clip-type mounting bracket 3.

  A plurality of field edge receivers 11 and field edges 12 are provided, and are assembled in a lattice shape.

  The ceiling board 20 is screwed to the lower surface of the field edge 12 as shown in FIG. A ceiling surface is formed by the plurality of ceiling plates 20, and a peripheral edge 21 is provided at a peripheral portion of the ceiling surface (peripheral portion of the entire ceiling surface adjacent to the wall surface 5).

The threading member 30 is a member that connects the end portions of the field edge receivers 11 or the end portions of the field edge 12, and is disposed along the wall surface 5. The threading member 30 projects from the end of the field edge receiver 11 or the edge of the field edge 12 toward the wall surface 5.
The threading member 30 includes a joining plate portion 31 and a counter plate portion 32. The joining plate part 31 contacts the lower surface of the field edge 12 or contacts the upper surface of the field edge receiver 11 as shown in FIG. The inner side surface of the opposing plate portion 32 faces the end surface (small edge surface) of the field edge receiver 11 or the field edge 12. The outer surface of the opposing plate portion 32 faces the wall surface 5. The threading member 30 is made of, for example, a steel angle member having an L-shaped cross section. One face plate having an L-shaped cross section of the threading member 30 serves as a joining plate portion 31, and the other face plate serves as a counter plate portion 32.

  When the threading member 30 is provided at the end of the field edge 12, the angle member is arranged in such a direction that the opposing plate portion 32 rises from the end of the joining plate portion 31 as shown in FIG. 3. The joining plate portion 31 is fixed to the field edge 12 by contacting the lower surface of the field edge 12 and screwing from the lower side. The inner surface of the opposing plate portion 32 is disposed with a gap from the end surface of the field edge 12 or is disposed in contact with the end surface. The ceiling plate 20 is bonded to the lower surface of the field edge 12, and the upper surfaces of the ceiling plate 20 and the peripheral edge 21 are brought into contact with the lower surface of the bonding plate portion 31. The outer side surface of the opposing plate portion 32 protrudes toward the wall surface 5 from the outer peripheral end surface of the peripheral edge 21.

  When the threading member 30 is provided at the end of the field edge receiver 11, the angle member is disposed in such a direction that the opposing plate portion 32 hangs down from the end of the joining plate portion 31 as shown in FIG. 4. The joining plate portion 31 is fixed to the field edge receiver 11 by contacting the upper surface of the field edge receiver 11 and screwing it from above. The inner side surface of the opposing plate part 32 is disposed with a gap from the end surface of the field edge receiver 11. The outer side surface of the opposing plate portion 32 protrudes toward the wall surface 5 from the outer peripheral end surface of the peripheral edge 21.

  The threading member 30 has a length dimension that is slightly shorter than the width dimension of the wall surface 5 and does not interfere with the orthogonal wall surfaces located on both sides of the wall surface 5. As shown in FIG. 2 (b), the longitudinal direction end of the threading member 30 extending in the Y-axis direction is slightly parallel to the wall surface parallel to the field edge receiver 11 (the wall surface facing the end surface of the field edge 12). Opposite with a gap. Further, the longitudinal end portion of the threading member 30 extending in the X-axis direction faces a wall surface parallel to the field edge 12 (a wall surface facing the end surface of the field edge receiver 11) with a slight gap. Thus, the end of the threading material 30 provided at the end of the field edge receiver 11 and the end of the threading material 30 provided at the end of the field edge 12 do not interfere with each other.

As described above, the counter plate portion 32 of the threading member 30 protrudes to the outermost side at the peripheral portion of the ceiling main body.
As shown in FIG. 1, a constant width clearance (hereinafter referred to as “first clearance”) is provided between the peripheral edge of the ceiling main body and the surface of the surrounding wall (wall surface 5). Specifically, in the portion facing the wall surface 5 in the peripheral portion of the ceiling main body, the outer surface of the facing plate portion 32 of the threading member 30 is disposed with a first clearance with respect to the wall surface 5. The first clearance has a uniform width dimension L1 over the entire circumference of the room.

  On the other hand, a clearance (hereinafter referred to as “second clearance”) having a width (width dimension L2) wider than the width dimension L1 of the first clearance is provided between the peripheral edge of the ceiling main body and the column 6. In addition, as shown in Fig. 1, when the column is exposed, such as the reinforced concrete construction finish or the direct pasting finish of the cloth, the gap between the column surface and the peripheral edge (end surface) of the ceiling body corresponds to the second clearance. When a column shape is formed by providing a finishing material such as a panel around the column, the gap between the surface of the column shape and the peripheral edge of the ceiling body corresponds to the second clearance.

  A connecting member 35 is provided in parallel to the front end surface 6 a at a portion facing the front end surface 6 a parallel to the wall surface 5 around the pillar 6. The connecting member 35 is made of, for example, a metal plate material, and is a member that spans the field edge 12 or the field edge receiver 11 orthogonal to the wall surface 5. In addition, in FIG. 1, it spans over the field edges 12 and 12 located in the both sides of the pillar 6. FIG. The outer end of the connecting material 35 is disposed with a width L2 between the front end surface 6a and a second clearance is provided between the connecting material 35 and the front end surface 6a.

  In the part of the periphery of the pillar 6 facing the side surface 6b orthogonal to the wall surface 5, a ceiling component (field edge 12 in FIG. 1) orthogonal to the wall surface 5 is arranged in parallel. The field edge 12 is arranged with a side surface 6b and a width dimension L2, and a second clearance is provided between the side surface of the field edge 12 and the side surface 6b of the column 6. In addition, it is not limited to the ceiling constituent material that is closest to the side surface 6b, but may be another member such as a threading material or a connecting material.

  As shown in FIGS. 5 and 6, the ceiling main body in the case where the curtain box 40 is provided around the ceiling board 20 further includes an overhang member 50 that projects from the ceiling base component toward the wall surface 5. The curtain box 40 is opened downward, and flanges 41 extending outward are formed at both ends in the width direction of the opening. The peripheral part of the ceiling board 20 is located above the collar part 41, and the end surface is blinded. Further, the peripheral edge surface of the ceiling main body excluding the overhanging member 50 (the member positioned on the outermost side of the field edge receiver 11, the field edge 12 or the ceiling board 20) is a curtain box with a gap (third clearance) therebetween. 40 faces the side surface 40a. The width dimension L3 of the third clearance is larger than the width dimension L1 of the first clearance. When the curtain box 40 is provided, the threading material 30 may not be provided at a position facing the curtain box 40. The curtain box 40 is fixed to an attachment bracket 45 attached to the wall. The fixing structure of the curtain box 40 is not limited to the above.

  As shown in FIG. 5, when the projecting member 50 extends along the longitudinal direction of the field edge 12, a horizontal material 55 is stretched over the two field edge receivers 11, 11 and the horizontal material 55. A vertical member 56 and a reinforcing diagonal member 57 are joined to each other to support the overhang member 50. The overhang member 50, the horizontal member 55, the vertical member 56, and the reinforcing diagonal member 57 are made of a steel C-shaped channel member having a U-shaped cross section. The overhang member 50, the horizontal member 55, the vertical member 56, and the reinforcing diagonal member 57 have the same cross-sectional shape. The horizontal member 55 is fixed to the field edge receivers 11, 11 by general-purpose metal fittings (not shown) for fixing the field edge receiver 11 and the field edge 12.

The vertical member 56 is attached to the end of the horizontal member 55 on the wall surface 5 side, and rises from the horizontal member 55.
The overhang member 50 is attached to the upper end portion of the vertical member 56. The overhang member 50 extends from the vertical member 56 toward the wall surface 5, and a first clearance is provided between the distal end surface and the wall surface 5. A plurality of overhang members 50 are provided at predetermined intervals in the longitudinal direction of the curtain box 40. The threading member 30 is stretched over the tip of the overhang member 50. When the threading member 30 is provided, the wall-side end surface of the threading member 30 is used as the leading end surface of the projecting member 50, and a first clearance is provided between the wall-side end surface of the threading member 30 and the wall surface 5. The overhang member 50 also extends to the indoor side (the side opposite to the wall surface 5) from the vertical member 56.
The reinforcing diagonal member 57 is disposed to be inclined between the overhang member 50 and the horizontal member 55. The reinforcing diagonal member 57 is inclined so that the lower side is located on the indoor side.

  The horizontal member 55 and the overhanging member 50 are arranged so that the opening having a U-shaped cross section faces the same direction (the back side in FIG. 5) and the back portions are in the same plane. The vertical member 56 and the reinforcing diagonal member 57 are arranged so that the openings having a U-shaped cross section face the same direction (front side in FIG. 5) and the back portions are in the same plane. The back portion of the horizontal member 55 is disposed so as to come into contact with the back portion of the lower end portion of the vertical member 56 and the reinforcing diagonal member 57. The back portion of the overhang member 50 is disposed so as to come into contact with the back portions of the upper end portions of the vertical member 56 and the reinforcing diagonal member 57. The horizontal member 55 (or the overhang member 50) and the vertical member 56 (or the reinforcing diagonal member 57) are fixed by bringing their backs into contact with each other and fastening with screws (not shown). Here, by extending the overhanging member 50 to the indoor side from the vertical member 56, the back of the overhanging member 50 and the back of the reinforcing diagonal member 57 can be brought into contact with each other so that fixing can be facilitated. became.

As shown in FIG. 6, when the overhang member 50 extends along the longitudinal direction of the field receiver 11, the horizontal member 55 is not provided, and the vertical member 56 and the reinforcing diagonal member 57 are provided on the field receiver 11. Fix directly. By bringing the back portions of the vertical member 56 and the reinforcing diagonal member 57 into contact with the back portions of the field edge receiver 11 and screwing the spines back to each other, the vertical member 56 (or the reinforcing diagonal member 57) and the The edge receiver 11 is fixed.
The other parts have the same configuration as that shown in FIG.

  According to the above configuration, since the first clearance is smaller than the second clearance, when the ceiling body shakes during an earthquake, the ceiling body does not come into contact with the column 6 or the column shape. Abuts only on the wall surface 5. Since the ceiling main body does not receive local force from the pillar 6 or the column shape, the ceiling main body is hardly damaged. That is, since the ceiling main body first comes into contact with the wall and does not come into contact with the pillar or the pillar 6, damage to the ceiling main body around the pillar can be prevented. Moreover, since the ceiling main body abuts against the wall surface 5 through a wide area of the peripheral edge portion, the horizontal force can be distributed and transmitted to the wall surface 5. Therefore, damage to the ceiling main body and the wall can be suppressed around the wall.

Furthermore, since the horizontal force due to the swing of the ceiling body is received by the wall surface 5, the ceiling body can be allowed to swing to some extent, so that the brace provided between the suspension bolt 1, the field edge receiver 11, and the field edge 12 can be used. It can be omitted. As a result, even if an interlayer displacement occurs in surrounding structures (columns, walls, upper floors) at the time of the earthquake, the ceiling body also follows and displaces. Therefore, since the ceiling main body does not collide strongly with the wall surface 5, damage can be suppressed.
Further, by omitting the brace, it is possible to reduce the weight of the ceiling body and reduce the labor required for construction. In this embodiment, the brace is omitted. However, in some cases, a structure in which the brace is partially provided may be used, and even in this case, the weight of the ceiling main body can be reduced and the construction labor can be reduced.

  In addition, when the horizontal force of the ceiling body is large, such as when the area of the room is large, the wall surface is reinforced more than a normal structure in order to receive a large horizontal force on the wall surface. For reinforcement of the wall surface, for example, the arrangement pitch of wall base materials such as studs and wooden squares is made finer, the member dimensions are made larger, and the wall finishing material is made thicker. Moreover, you may reinforce the fixing | fixed part of the upper end part of a wall base material, and an upper fixing | fixed part (structures, such as an upper floor slab).

  Moreover, by attaching the threading material 30 to the field edge receiver 11 or the field edge 12, the first clearance can be set to a certain width with easy construction. Furthermore, since the counter plate portion 32 abuts against the wall surface 5, the contact area is further increased, and the surface pressure acting on the wall surface 5 can be reduced.

  When the curtain box 40 is provided on the outside of the ceiling plate 20, the ceiling main body can be configured as a curtain by making the third clearance larger than the first clearance as shown in FIGS. It does not contact the box 40 but contacts the wall surface 5 via the overhang member 50. That is, the horizontal force of the ceiling body at the time of an earthquake can be directly transmitted to the wall surface 5 via the overhang member 50 without acting on the curtain box 40. As a result, the curtain box 40 is not deformed.

  As mentioned above, although the form for implementing this invention was demonstrated, this invention is not limited to the said embodiment, A design change, such as a material, a shape, and a magnitude | size, is suitably possible in the range which does not deviate from the meaning of this invention. is there. For example, in the above-described embodiment, the threading material 30 is provided and the first clearance is provided between the threading material 30 and the wall surface 5, but the present invention is not limited to this. Without providing the threading material 30, the field edge receiver 11, the field edge 12, or the ceiling plate 20 is positioned on the outermost side of the peripheral edge of the ceiling body, and a constant width is provided between these outermost peripheral members and the wall surface 5. The first clearance may be used. In addition, it is preferable to provide the threading material 30 because the first clearance can be made a certain width by easy construction.

  In the above embodiment, the threading material 30 is an angle material having an L-shaped cross section, but is not limited to this shape. For example, even if it has a U-shaped cross section or a flat plate shape, a certain effect can be obtained as long as it is parallel to the wall surface and protrudes to the wall surface side.

  Further, the shape and material of the field edge receiver 11 and the field edge 12 are not limited to the above-described embodiment, and may be made of aluminum alloy, stainless steel, or wooden. In the case of wooden, it becomes a square.

Furthermore, in the said embodiment, although the field edge receiver 11 and the field edge 12 are orthogonally crossed with respect to the wall surface 5, it may not orthogonally cross depending on the shape of a room. In this case, the threading material only needs to be provided along the wall surface. Furthermore, the present invention can be applied even to an oblique ceiling with an inclined ceiling surface or an R ceiling with a curved ceiling surface. In this case, a first clearance may be provided between the outer peripheral edge of the oblique ceiling or the R ceiling and the wall surface.
Further, the present invention can be applied even to a grid ceiling where a ceiling board is not provided and a ceiling base material (decorative frame) is exposed. This is particularly effective when loading heavy objects such as air conditioning equipment and signs on the ceiling.

  Furthermore, in the said embodiment, when the curtain box 40 was provided, although the overhang | projection member 50 was provided, it is not limited to this. Even when an obstacle other than the curtain box 40 (for example, a breeze line (line-type air-conditioning outlet) or smoke-proof hanging wall continuous to the wall) is provided, the overhang member 50 is provided, whereby the action of the present invention is achieved. An effect can be obtained.

1 Suspension bolt (suspending material)
5 Wall surface 6 Pillar 10 Ceiling base 11 Field edge receiver (ceiling base component)
12 Field edge (ceiling base material)
20 ceiling panel 30 threading material 40 curtain box

Claims (2)

In the ceiling structure having a ceiling main body suspended and supported from the upper housing,
The peripheral part of the ceiling main body is opposed to a wall and a planar rectangular column or column shape protruding from the wall,
The column or the column type includes a front end surface parallel to the surface of the wall and a side surface orthogonal to the surface of the wall,
A linear first clearance is provided between the peripheral edge and the surface of the wall,
Between the peripheral edge portion and the front end surface and the side surface of the pillar or the pillar mold , a planar U-shaped second clearance having a width wider than the first clearance is provided,
The ceiling main body includes a ceiling base supported by a suspension member provided in an upper casing, a ceiling plate supported by the ceiling base, and a threading member disposed along the surface of the wall,
The ceiling foundation has a plurality of ceiling foundation constituent members extending along a direction intersecting the surface of the wall,
The threading material connects ends of the plurality of ceiling foundation components, and projects from the end of the ceiling foundation components and the peripheral edge of the ceiling plate to the wall side. Construction. In the ceiling structure having a ceiling main body suspended and supported from the upper housing,
A first clearance is provided between the peripheral portion of the ceiling body and the surface of the surrounding wall, and a first clearance wider than the first clearance is provided between the peripheral portion and the surface of the column or column shape. There are two clearances,
The ceiling main body includes a ceiling base supported by a suspension member provided in the upper casing, a ceiling plate supported by the ceiling base, and a threading member disposed along the wall surface,
The ceiling foundation has a plurality of ceiling foundation components extending along a direction intersecting the wall surface,
The threading material connects the ends of the plurality of ceiling foundation components, and projects to the wall side from the edge of the ceiling foundation components and the peripheral edge of the ceiling plate,
A curtain box is provided outside the ceiling plate,
The ceiling body further includes a projecting member that projects from the ceiling base component toward the wall,
The overhang member is provided with the first clearance between the wall and the upper part of the curtain box.

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